Ravindra H J

Scopus Publications

Green Chemistry and Bioinspiration in Nanotechnology
Pavithra Poornima S, Ravindra H J
Green Chemistry in Nanotechnology for Sustainable Synthesis Characterization and Applications of Nanoparticles, 2026
This chapter examines how green chemistry principles and bioinspiration can be integrated into the synthesis and application of nanomaterials. It opens with an overview of traditional and green nanoparticle-synthesis methods, emphasizing the environmental and economic benefits of green approaches. The chapter then explores biomimetic strategies inspired by natural systems—including nacre, spider silk, and gecko feet—and their applications in drug delivery, sensing, and energy devices. Biogenic synthesis methods (plant-, microbial-, algae-, and honey-mediated) are reviewed, highlighting their relevance to sustainable nanotechnology. The chapter closes with examples of nature-inspired innovations in sensing and energy.
Synthesis, crystal structure and Hirshfeld surface analysis of (2E)-3-(biphenyl-4-yl)-1-(5-bromothiophen-2-yl) prop-2-en-1-one
Sandhya, Ravindra H．J．, Usha H, Madan Kumar Shankar
Chemical Data Collections, 2023
Synthesis, crystal structure and Hirshfeld surface analysis of 1-(4-chlorophenyl)-3-pyrenyl-2-propene-1-one
H. Ramakantha Puranik, Ravindra H.J., B. Praveen Managutti
Chemical Data Collections, 2021
A DFT study on effectiveness of position of carbonyl group in chalcone derivatives
Usha Harish, Ravindra Hadya Jayaramu
Aip Conference Proceedings, 2020
In the present paper effect of carbonyl group positionon the NLO response of selected chalcone derivatives has been discussed. The position of carbonyl group in chalcone chromophores plays a vital role in enhancing the NLO behavior of chalcones. To provide a strategy to enhance NLO response the theoretical calculations were carried out using density functional theory by employing B3LYP/6-31G(d) level of theory. The DFT calculations were carried out on eight chalcones with carbonyl group at different location in combination with donorgroup. The DFT results suggest that depending on the position of carbonyl group one can possibly use thiophene and benzene as electron donor/acceptor in NLO chromophores design. Also the donor group placed on phenyl ring is more effective to enhance NLO property in comparison with donor group substituted at thiophene ring. We also demonstrate that position of carbonyl group in chalcones can alter the nature of charge transfer from D-π-A-π-D toD-π-Asystem. The flexibility to change the nature of charge transfer gives great opportunity to tune the NLO and physical properties of chalcone derivatives.
Synthesis, growth, characterization and DFT studies of an organic crystal (1 E, 4E)-1-(4-chlorophenyl)-5-phenylpenta-1, 4-dien-3-one
Vijaya Kumari, Hadhya Jayaramu Ravindra, Harish Usha
Aip Conference Proceedings, 2020
A new halogen substituted chalcone derivative (1E,4E)-1-(4-chlorophenyl)-5-phenylpenta-1,4-dien-3-one (V4) has been synthesized by Claisen-Schmidt condensation reaction and the single crystals were grown by slow evaporation solution growth technique. The structure of the grown compound was confirmed by FTIR and 1H NMR studies. The UV-Vis absorption spectrum shows that V4 crystal is transparent in the entire visible region with a lower optical cutoffwavelength 454 nm with an optical band gap of 2.88 eV. In the TG/DT analysis response curve the endothermic peak observed at 140°C indicates the melting point of V4. The hardening coefficient (n) of the crystal was found to be 1.24 which indicatesthat grown crystal has load dependent hardness. The DFT calculations were performed by adopting B3LYP/6-31G(d) level oftheory to compute the optimized geometry, dipole moment(µ), polarizability (α), first hyperpolarizability (β) and HOMO-LUMOenergies. The computed static first hyperpolarizability (β) for V4 was 20.30 x10-30esuand HOMO-LUMO energy gap was 3.87eV. The β of V4 is greater than that of standard urea molecule. The role of chlorine and the design strategy has been presented to design NLO chalcones based on the computational results. The computational results clearly indicated the D-π-A-π-D type structure of V4,a where the chlorine group acts as an electron donor.
Synthesis, crystal growth and characterization of (1 E, 4E)-1, 5-bis (4-methoxyphenyl) penta-1, 4-dien-3-one (BMPD)
Sandhya, H. J. Ravindra, Praveen B. Managutti, Tayur N. Guru Row
Aip Conference Proceedings, 2020
A chalcone (1E, 4E)-1, 5-bis (4-methoxyphenyl) penta-1, 4-dien-3-one (BMPD) has been synthesized by Claisen-Schmidt condensation reaction. Large size single crystal of dimension 13mm x 5mm x 1mm have been grown by slow evaporation solution growth technique. Single crystal XRD study revealed that the molecule possess ʌ-shape and crystallize in orthorhombic noncentrosymmetric system with Aba2 space group. From the thermal studies the melting point of the chalcone was found to be 132 °C. The SHG efficiency of BMPD was found to be13.33 times that of urea as measured by the Kurtz powder SHG technique. From the UV-Visible study it is clear that the crystal is transparent in the entire visible and infrared region with cut off wavelength 444 nm. Theoretical calculation of dipole moment, first and second hyperpolarizability of the chalcone was carried out using MOPAC2016 computational software for single molecule, dimers involving C-H…O and C-H…π interactions and for the unit cell to understand the NLO performance of the chalcone. The semi empirical results revealed that the intermolecular interactions such as C-H…O and C-…π helps in extending the molecular charge transfer to super molecular assembly in the crystal structure, which may be the reason for observed high SHG efficiency of BMPD.
Synthesis, characterization, single crystal growth and hirshfield surface analysis of (2 E)-3-(5-bromothiophen-2-yl)-1-(naphthalen-1-yl) prop-2-en-1-one
Ramakantha Puranik H., Hadya Jayaramu Ravindra, Praveen B. Managutti, Shubha, Tayur N. Guru Row, Harish Usha
Aip Conference Proceedings, 2020
A chalcone derivative (2E)-3-(5-bromothiophen-2-yl)-1-(naphthalen-1-yl) prop-2-en-1-one (NBT) has been synthesized by Claisen-Schmidt condensation reaction and grown into single crystal by slow evaporation solution method. Elemental analysis, 1H NMR spectra and FTIR spectral studies confirm the structure of the molecule. The melting point of NBT is 112 °C and single crystal X-ray diffraction analysis reveals that NBT crystalizes in triclinic crystal system with centrosymmetric space group P -1. The material is transparent in the visible region with a cutoff wavelength 454 nm and its direct transition energy gap was found to be 3.1 eV. Theoretical calculations using density functional theory (DFT) reveal that the first hyperpolarizability (β) of NBT in the gaseous state is 20.8 x10−30 esu and the HOMO-LUMO energy difference is 3.57 eV. The theoretical second hyperpolarizability (γ) of NBT was found to be 5.32x10-35 esu.
Single crystal growth, characterization, structure and NLO property relationship in an efficient phase matchable chalcone
H. Ramakantha Puranik, H. J. Ravindra
Aip Conference Proceedings, 2019
A chalcone derivative (2E)-3-(4-bromophenyl)-1-(4-methoxyphenyl)prop-2-en-1-one (BMC) has been synthesized and grown into single crystal. Elemental analysis, Fourier transform infrared spectroscopy, nuclear magnetic resonance spectral analysis and powder X-ray diffraction studies were carried out to confirm the structure of the molecule. The TG/DT analysis shows that the crystal has good thermal stability with a melting point of 159 °C. The UV-Visible absorption study shows that the crystal has good transparency in the visible region with a cutoff wavelength 422 nm and direct transition energy gap of 3.5 eV. The second harmonic generation (SHG) efficiency of BMC was found to be 2.22 U and possess phase matching property. Theoretical calculation of molecular first hyperpolarizability (β) of BMC in gaseous state was computed using density functional theory (DFT) and was found to be 16.5 × 10−30 esu. High thermal stability, good transparency in visible region, good SHG efficiency and phase matching property of BMC makes it a possible potential candidate for NLO device applications.A chalcone derivative (2E)-3-(4-bromophenyl)-1-(4-methoxyphenyl)prop-2-en-1-one (BMC) has been synthesized and grown into single crystal. Elemental analysis, Fourier transform infrared spectroscopy, nuclear magnetic resonance spectral analysis and powder X-ray diffraction studies were carried out to confirm the structure of the molecule. The TG/DT analysis shows that the crystal has good thermal stability with a melting point of 159 °C. The UV-Visible absorption study shows that the crystal has good transparency in the visible region with a cutoff wavelength 422 nm and direct transition energy gap of 3.5 eV. The second harmonic generation (SHG) efficiency of BMC was found to be 2.22 U and possess phase matching property. Theoretical calculation of molecular first hyperpolarizability (β) of BMC in gaseous state was computed using density functional theory (DFT) and was found to be 16.5 × 10−30 esu. High thermal stability, good transparency in visible region, good SHG efficiency and phase matching property ...
Effect of charge transfer and structure property relationship in D-π-A system
H. Usha, H. J. Ravindra
Aip Conference Proceedings, 2019
In the present paper the chalcone belonging to D-π-A type push-pull system has been synthesized and the single crystals were grown by controlled solution evaporation technique. The grown single crystals were subjected to NMR, FTIR and powder X-ray diffraction technique to confirm the compound. The linear optical cut-off was found to be at 442 nm. The SHG efficiency was determined in powder form and was found to be 1.57 times that of KDP. The titled chalcone was found to be stable up to 106 °C. The DFT calculations revealed that the intermolecular interaction assisted molecular alignment play a crucial role in SHG. The un-optimal alignment of the molecules in the crystal structure resulted in decreased intermolecular charge transfer in the crystal. The structure-property relation is presented based on the experimental and DFT calculations.
Experimental and DFT studies on a new phase matchable NLO material (1E,4E)-1-(4-methoxyphenyl)-5-phenylpenta-1,4-dien-3-one
Vijaya Kumari, H. J. Ravindra, H. Usha
Aip Conference Proceedings, 2019
A new promising NLO chalcone (1E, 4E)-1-(4-methoxyphenyl)-5-phenylpenta-1,4-dien-3-one (V3) has been synthesized by Claisen-Schmidt condensation reaction and was characterized by elemental analysis, 1H NMR and FTIR techniques. Linear optical study reveals that the material is transparent in the entire visible region with lower optical cut-off wavelength 448 nm and has optical band gap of 2.73eV (Tauc’s plot). The TG /DTA study reveals that the title compound melts at 94°C. The second harmonic generation conversion efficiency of the powder sample of V3 was measured using Kurtz powder technique which was found to be 1.28 times greater than that of standard Urea. The particle size dependence of SHG intensity reveals that the V3 is a phase matchable material. Laser damage threshold for the compound was measured to be greater than 0.2 GW/cm2. Theoretical calculations were performed using Gaussian 03 by adopting B3LYP/6-31G (d) level of theory to derive the molecular first hyperpolarizability (β) and frontier molecular orbitals. Intramolecular charge transfer (ICT) in the molecule is due to HOMO-LUMO interactions which clearly indicate that compound belongs to D-π-A push-pull system. Maximum absorption peak observed in electronic spectra at 368nm (TDDFT) can be assigned to n- π* transition and is assigned to the excitation of C=O group. Owing to large SHG, phase matchable property and good optical transparency, V3 can be used for NLO applications.
Synthesis, crystal growth, characterization and Hirshfeld surface analysis of D-π-A-π-D type NLO chalcone
Sandhya, H. J. Ravindra, P. B. Managutti, T. N. G. Row
Aip Conference Proceedings, 2019
Computational and experimental studies on third-order optical nonlinearities of novel D-π-A-π-A type chalcone derivatives: (1E,4E)-1-(4-substituted)-5-phenylpenta-1,4-dien-3-one
Heng Lu, Bing Gu, Yiping Cui, Jun He, Kumari Vijaya, H. J. Ravindra, H. Usha
Journal of Nonlinear Optical Physics and Materials, 2019
Investigation of physical, spectral and thermal properties of a dimethoxy substituted chalcone for opto-electronic device applications
Anthoni Praveen Menezes, A. Jayarama, H.J. Ravindra
Materials Today Proceedings, 2019
Synthesis, growth, Hirshfeld surface analysis and crystal structure of a pyridine based chalcone single crystal
Anthoni Praveen Menezes, A. Jayarama, H.J. Ravindra
Materials Today Proceedings, 2019
Synthesis, growth, and characterization of 3-(4-Methoxyphenyl)-1-(pyridin- 2-yl) prop-2-en-1-one single crystal: A potential NLO material
A. Jayarama, H.J. Ravindra, Anthoni Praveen Menezes, S.M. Dharmaprakash, Seik Weng Ng
Journal of Molecular Structure, 2013
Intramolecular charge transfer and hydrogen bonding interactions of nonlinear optical material N-benzoyl glycine: Vibrational spectral study
D. Sajan, H.J. Ravindra, Neeraj Misra, I. Hubert Joe
Vibrational Spectroscopy, 2010
Designing novel chalcone single crystals with ultrafast nonlinear optical responses and large multi-photon absorption coefficients
A. John Kiran, H.W. Lee, H.J. Ravindra, S.M. Dharmaprakash, K. Kim, H. Lim, F. Rotermund
Current Applied Physics, 2010
Design of new organic single crystals for ultrafast optical applications
A. John Kiran, H. W. Lee, H. J. Ravindra, S. M. Dharmaprakash, K. Kim, H. Lim, F. Rotermund
Pacific Rim Conference on Lasers and Electro Optics CLEO Technical Digest, 2009
Design of new organic single crystals for ultrafast optical applications
Optics Infobase Conference Papers, 2009
Structure and NLO property relationship in a novel chalcone co-crystal
H. J. Ravindra, K. Chandrashekaran, W. T. A. Harrison, S. M. Dharmaprakash
Applied Physics B Lasers and Optics, 2009
Crystal growth, characterization, structural characteristics and second harmonic generation in N-benzoyl glycine crystals
A. Jayarama, H.J. Ravindra, S.M. Dharmaprakash
Materials Chemistry and Physics, 2009
Synthesis, crystal growth, characterization and structure-NLO property relationship in 1,3-bis(4-methoxyphenyl)prop-2-en-1-one single crystal
H.J. Ravindra, W.T.A. Harrison, M.R. Suresh Kumar, S.M. Dharmaprakash
Journal of Crystal Growth, 2009
Growth and characterization of an efficient nonlinear optical D-π-A-π-D type chalcone single crystal
H.J. Ravindra, A. John Kiran, S.M. Dharmaprakash, N. Satheesh Rai, K. Chandrasekharan, B. Kalluraya, F. Rotermund
Journal of Crystal Growth, 2008
Synthesis, crystal growth and characterization of a phase matchable nonlinear optical single crystal: p-chloro dibenzylideneacetone
H.J. Ravindra, A. John Kiran, Satheesha Rai Nooji, S.M. Dharmaprakash, K. Chandrasekharan, Balakrishna Kalluraya, Fabian Rotermund
Journal of Crystal Growth, 2008
Superior characteristics of organic chalcone single crystals as efficient nonlinear optical material
A. John Kiran, H. C. Kim, K. Kim, F. Rotermund, H. J. Ravindra, S. M. Dharmaprakash, H. Lim
Applied Physics Letters, 2008
(2E)-1-{4-[(1E)-Benzyl-ideneamino]phenyl}-3-phenyl-prop-2-en-1-one
William T. A. Harrison, H. J. Ravindra, M. R. Suresh Kumar, S. M. Dharmaprakash
Acta Crystallographica Section E Structure Reports Online, 2007
1-(4-Aminophenyl)-3-(3,4,5-trimethoxy-phenyl)prop-2-en-1-one-1-(4-amino- phenyl)-3-(3-bromo-4,5-trimethoxy-phenyl)prop-2-en-1-one (0.972/0.028)
William T. A. Harrison, H. J. Ravindra, M. R. Suresh Kumar, S. M. Dharmaprakash
Acta Crystallographica Section E Structure Reports Online, 2007
N-(4-Nitro-phen-yl)-N′-phenylsuccinamide
Ray J. Butcher, Jerry P. Jasinski, H. J. Ravindra, S. M. Dharmaprakash
Acta Crystallographica Section E Structure Reports Online, 2007
3-[(4-Nitrophenyl)aminocarbonyl]-propanoic acid
Nigam P. Rath, H. J. Ravindra, M. R. Suresh Kumar, S. M. Dharmaprakash
Acta Crystallographica Section E Structure Reports Online, 2007
(2E,2′E)-1,1′-Bis(4-chloro-phen-yl)-3,3′-(1,4-phenyl-ene) diprop-2-en-1-one
William T. A. Harrison, H. J. Ravindra, M. R. Suresh Kumar, S. M. Dharmaprakash
Acta Crystallographica Section E Structure Reports Online, 2007
Synthesis, crystal growth and characterization of glycine lithium sulphate
M.R. Suresh Kumar, H.J. Ravindra, S.M. Dharmaprakash
Journal of Crystal Growth, 2007
(2E,2′E)-3,3′-(1,4-Phenyl-ene)bis-[1-(3,4-dimethoxy-phen-yl) prop-2-en-1-one]
William T. A. Harrison, H. J. Ravindra, M. R. Suresh Kumar, S. M. Dharmaprakash
Acta Crystallographica Section E Structure Reports Online, 2007
(2E,2′E)-3,3′-(1,4-Phenyl-ene)bis-[1-(4-methoxy-phen-yl) prop-2-en-1-one]
William T. A. Harrison, H. J. Ravindra, M. R. Suresh Kumar, S. M. Dharmaprakash
Acta Crystallographica Section E Structure Reports Online, 2007
Third order nonlinear optical properties and optical limiting in donor/acceptor substituted 4'-methoxy chalcone derivatives
H.J. Ravindra, A. John Kiran, K. Chandrasekharan, H.D. Shashikala, S.M. Dharmaprakash
Applied Physics B Lasers and Optics, 2007
1,5-Bis(3,4,5-trimethoxyphenyl)penta-1,4-dien-3-one 1.333-hydrate-1,5-bis- (3-bromo-4,5-dimethoxyphenyl)penta-1,4-dien-3-one 1.333-hydrate 0.919 (3):0.081 (3) cocrystal
H. J. Ravindra, S. M. Dharmaprakash, William T. A. Harrison
Acta Crystallographica Section E Structure Reports Online, 2007
1-(4-Hydroxyphenyl)-3-(3,4,5-trimethoxyphenyl)prop-2-en-1-one
William T. A. Harrison, Vijaya Kumari, H. J. Ravindra, S. M. Dharmaprakash
Acta Crystallographica Section E Structure Reports Online, 2007
A phase-matchable nonlinear optical material N-(3-nitrophenyl)phthalimide: Synthesis, crystal growth and characterization
H.J. Ravindra, M.R. Suresh Kumar, Chitharanjan Rai, S.M. Dharmaprakash
Journal of Crystal Growth, 2006
Structural characteristics and second harmonic generation in l-threonine crystals
M.R. Suresh Kumar, H.J. Ravindra, A. Jayarama, S.M. Dharmaprakash
Journal of Crystal Growth, 2006

RECENT SCHOLAR PUBLICATIONS

Synthesis, crystal structure and Hirshfeld surface analysis of (2E)-3-(biphenyl-4-yl)-1-(5-bromothiophen-2-yl) prop-2-en-1-one
HJ Ravindra, H Usha
Chemical Data Collections 45, 101018 , 2023
2023
Citations: 1
Synthesis, crystal structure and Hirshfeld surface analysis of 1-(4-chlorophenyl)-3-pyrenyl-2-propene-1-one
HR Puranik, HJ Ravindra, BP Managutti
Chemical Data Collections 33, 100725 , 2021
2021
Citations: 4
Synthesis, growth, Hirshfeld surface analysis and crystal structure of a pyridine based chalcone single crystal
AP Menezes, A Jayarama, HJ Ravindra
Materials Today: Proceedings 35, 387-391 , 2021
2021
Citations: 4
Investigation of physical, spectral and thermal properties of a dimethoxy substituted chalcone for opto-electronic device applications
AP Menezes, A Jayarama, HJ Ravindra
Materials Today: Proceedings 35, 374-377 , 2021
2021
Citations: 2
Synthesis, characterization, single crystal growth and hirshfield surface analysis of (2 E )-3-(5-bromothiophen-2-yl)-1-(naphthalen-1-yl) prop-2-en-1-one
HJ Ravindra, PB Managutti, Shubha, TNG Row, H Usha
AIP Conference Proceedings 2244 (1), 100004 , 2020
2020
A DFT study on effectiveness of position of carbonyl group in chalcone derivatives
U Harish, RH Jayaramu
AIP Conference Proceedings 2244 (1), 060007 , 2020
2020
Synthesis, crystal growth and characterization of (1 E , 4E)-1, 5-bis (4-methoxyphenyl) penta-1, 4-dien-3-one (BMPD)
Sandhya, HJ Ravindra, PB Managutti, TNG Row
AIP Conference Proceedings 2244 (1), 030003 , 2020
2020
Citations: 1
Synthesis, growth, characterization and DFT studies of an organic crystal (1 E , 4E)-1-(4-chlorophenyl)-5-phenylpenta-1, 4-dien-3-one
V Kumari, HJ Ravindra, H Usha
AIP Conference Proceedings 2244 (1), 060008 , 2020
2020
Synthesis, characterization, single crystal growth and hirshfield surface analysis of (2E)-3-(5-bromothiophen-2-yl)-1-(naphthalen-1-yl) prop-2-en-1-one
H Ramakantha Puranik, HJ Ravindra, PB Managutti, TN Shubha, H Usha
American Institute of Physics Conference Series 2244 (1), 100004 , 2020
2020
Synthesis, crystal growth, characterization and Hirshfeld surface analysis of D-π-A-π-D type NLO chalcone
Sandhya, HJ Ravindra, PB Managutti, TNG Row
AIP Conference Proceedings 2162 (1), 020049 , 2019
2019
Citations: 3
Experimental and DFT studies on a new phase matchable NLO material (1E, 4E)-1-(4-methoxyphenyl)-5-phenylpenta-1, 4-dien-3-one
V Kumari, HJ Ravindra, H Usha
AIP Conference Proceedings 2162 (1), 020140 , 2019
2019
Effect of charge transfer and structure property relationship in D-π-A system
H Usha, HJ Ravindra
AIP Conference Proceedings 2162 (1), 020128 , 2019
2019
Single crystal growth, characterization, structure and NLO property relationship in an efficient phase matchable chalcone
HR Puranik, HJ Ravindra
AIP Conference Proceedings 2162 (1), 020048 , 2019
2019
Citations: 1
Computational and experimental studies on third-order optical nonlinearities of novel D-π-A-π-A type chalcone derivatives:(1E, 4E)-1-(4-substituted)-5-phenylpenta-1, 4-dien-3-one
H Lu, B Gu, Y Cui, J He, K Vijaya, HJ Ravindra, H Usha
Journal of Nonlinear Optical Physics & Materials 28 (03), 1950024 , 2019
2019
Citations: 10
Effect of position of electron acceptor group substitution on NLO properties of chalcones derivatives: A DFT study
U H, Ravindra,H, J
International Journal of Scientific & Engineering Research 9 (4), 1-4 , 2018
2018
SYNTHESIS, CHARACTERISATION, SINGLE CRYSTAL GROWTH AND SHG STUDIES OF (2E)-1-(4-AMINOPHENYL)-3-(4-BROMOPHENYL) PROP-2-EN-1-ONE
H Ramakantha Puranik, HJ Ravindra
Recent Advances in Materials Science and Biophysics, 225 , 2018
2018
Synthesis, growth, and characterization of 3-(4-Methoxyphenyl)-1-(pyridin-2-yl) prop-2-en-1-one single crystal: A potential NLO material
A Jayarama, HJ Ravindra, AP Menezes, SM Dharmaprakash, SW Ng
Journal of Molecular Structure 1051, 285-291 , 2013
2013
Citations: 42
Intramolecular charge transfer and hydrogen bonding interactions of nonlinear optical material N-benzoyl glycine: Vibrational spectral study
D Sajan, HJ Ravindra, N Misra, IH Joe
Vibrational Spectroscopy 54 (1), 72-80 , 2010
2010
Citations: 65
Designing novel chalcone single crystals with ultrafast nonlinear optical responses and large multi-photon absorption coefficients
AJ Kiran, HW Lee, HJ Ravindra, SM Dharmaprakash, K Kim, H Lim, ...
Current Applied Physics 10 (5), 1290-1296 , 2010
2010
Citations: 38
Design of new organic single crystals for ultrafast optical applications
AJ Kiran, HW Lee, HJ Ravindra, SM Dharmaprakash, K Kim, H Lim, ...
Conference on Lasers and Electro-Optics/Pacific Rim, ThB2_4 , 2009
2009

MOST CITED SCHOLAR PUBLICATIONS

Third order nonlinear optical properties and optical limiting in donor/acceptor substituted 4 ′ -methoxy chalcone derivatives
HJ Ravindra, A John Kiran, K Chandrasekharan, HD Shashikala, ...
Applied Physics B 88 (1), 105-110 , 2007
2007
Citations: 123
Structure and NLO property relationship in a novel chalcone co-crystal
HJ Ravindra, K Chandrashekaran, WTA Harrison, SM Dharmaprakash
Applied Physics B 94 (3), 503-511 , 2009
2009
Citations: 93
Growth and characterization of an efficient nonlinear optical D–π–A–π–D type chalcone single crystal
HJ Ravindra, AJ Kiran, SM Dharmaprakash, NS Rai, K Chandrasekharan, ...
Journal of crystal growth 310 (18), 4169-4176 , 2008
2008
Citations: 66
Intramolecular charge transfer and hydrogen bonding interactions of nonlinear optical material N-benzoyl glycine: Vibrational spectral study
D Sajan, HJ Ravindra, N Misra, IH Joe
Vibrational Spectroscopy 54 (1), 72-80 , 2010
2010
Citations: 65
Synthesis, crystal growth and characterization of a phase matchable nonlinear optical single crystal: p-chloro dibenzylideneacetone
HJ Ravindra, AJ Kiran, SR Nooji, SM Dharmaprakash, ...
Journal of crystal growth 310 (10), 2543-2549 , 2008
2008
Citations: 52
Synthesis, crystal growth and characterization of glycine lithium sulphate
MRS Kumar, HJ Ravindra, SM Dharmaprakash
Journal of crystal growth 306 (2), 361-365 , 2007
2007
Citations: 51
Superior characteristics of organic chalcone single crystals as efficient nonlinear optical material
AJ Kiran, HC Kim, K Kim, F Rotermund, HJ Ravindra, SM Dharmaprakash, ...
Applied Physics Letters 92 (11) , 2008
2008
Citations: 49
Structural characteristics and second harmonic generation in L-threonine crystals
MRS Kumar, HJ Ravindra, A Jayarama, SM Dharmaprakash
Journal of crystal Growth 286 (2), 451-456 , 2006
2006
Citations: 49
Synthesis, crystal growth, characterization and structure–NLO property relationship in 1, 3-bis (4-methoxyphenyl) prop-2-en-1-one single crystal
HJ Ravindra, WTA Harrison, MRS Kumar, SM Dharmaprakash
Journal of Crystal Growth 311 (2), 310-315 , 2009
2009
Citations: 48
Synthesis, growth, and characterization of 3-(4-Methoxyphenyl)-1-(pyridin-2-yl) prop-2-en-1-one single crystal: A potential NLO material
A Jayarama, HJ Ravindra, AP Menezes, SM Dharmaprakash, SW Ng
Journal of Molecular Structure 1051, 285-291 , 2013
2013
Citations: 42
Designing novel chalcone single crystals with ultrafast nonlinear optical responses and large multi-photon absorption coefficients
AJ Kiran, HW Lee, HJ Ravindra, SM Dharmaprakash, K Kim, H Lim, ...
Current Applied Physics 10 (5), 1290-1296 , 2010
2010
Citations: 38
A phase-matchable nonlinear optical material N-(3-nitrophenyl) phthalimide: Synthesis, crystal growth and characterization
HJ Ravindra, MRS Kumar, C Rai, SM Dharmaprakash
Journal of crystal growth 294 (2), 318-322 , 2006
2006
Citations: 30
Crystal growth, characterization, structural characteristics and second harmonic generation in N-benzoyl glycine crystals
A Jayarama, HJ Ravindra, SM Dharmaprakash
Materials Chemistry and Physics 113 (1), 91-95 , 2009
2009
Citations: 21
Computational and experimental studies on third-order optical nonlinearities of novel D-π-A-π-A type chalcone derivatives:(1E, 4E)-1-(4-substituted)-5-phenylpenta-1, 4-dien-3-one
H Lu, B Gu, Y Cui, J He, K Vijaya, HJ Ravindra, H Usha
Journal of Nonlinear Optical Physics & Materials 28 (03), 1950024 , 2019
2019
Citations: 10
1-(4-Hydroxyphenyl)-3-(3, 4, 5-trimethoxyphenyl) prop-2-en-1-one
WTA Harrison, V Kumari, HJ Ravindra, SM Dharmaprakash
Structure Reports 63 (6), o2928-o2928 , 2007
2007
Citations: 8
1, 5-Bis (3, 4, 5-trimethoxyphenyl) penta-1, 4-dien-3-one 1.333-hydrate–1, 5-bis (3-bromo-4, 5-dimethoxyphenyl) penta-1, 4-dien-3-one 1.333-hydrate 0.919 (3): 0.081 (3) cocrystal
HJ Ravindra, SM Dharmaprakash, WTA Harrison
Structure Reports 63 (6), o2877-o2879 , 2007
2007
Citations: 7
1-(4-Aminophenyl)-3-(3, 4, 5-trimethoxyphenyl) prop-2-en-1-one–1-(4-aminophenyl)-3-(3-bromo-4, 5-trimethoxyphenyl) prop-2-en-1-one (0.972/0.028)
WTA Harrison, HJ Ravindra, MRS Kumar, SM Dharmaprakash
Structure Reports 63 (10), o3970-o3970 , 2007
2007
Citations: 5
Synthesis, crystal structure and Hirshfeld surface analysis of 1-(4-chlorophenyl)-3-pyrenyl-2-propene-1-one
HR Puranik, HJ Ravindra, BP Managutti
Chemical Data Collections 33, 100725 , 2021
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Citations: 4
Synthesis, growth, Hirshfeld surface analysis and crystal structure of a pyridine based chalcone single crystal
AP Menezes, A Jayarama, HJ Ravindra
Materials Today: Proceedings 35, 387-391 , 2021
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Citations: 4
(2E, 2′ E)-1, 1′-Bis (4-chlorophenyl)-3, 3′-(1, 4-phenylene) diprop-2-en-1-one
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Structure Reports 63 (9), o3702-o3702 , 2007
2007
Citations: 4

Ravindra H J

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