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Konakanchi R, Rao KP, Reddy GN, Prashanth J. Zinc(II) complex: Spectroscopic, physicochemical calculations, anti-inflammatory and in silico molecular docking studies. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133070] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Konakanchi R, Jyothi P, Kotha LR. Investigation of Structures, FTIR, FT-Raman, In Vivo Anti-Inflammatory, Molecular Docking and Molecular Characteristics of 2-Amino-3-Pyridine Carboxaldehyde and Its Copper(II) Complex Using Experimental and Theoretical Approach. Polycycl Aromat Compd 2020. [DOI: 10.1080/10406638.2020.1725899] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Ramaiah Konakanchi
- H&S Department, Chemistry Division, Vignan Institute of Technology and Science, Hyderabad, India
- Department of Chemistry, National Institute of Technology, Warangal, India
| | | | - Laxma Reddy Kotha
- Department of Chemistry, National Institute of Technology, Warangal, India
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Vibrational spectroscopic (FT-IR, FT-Raman), anti-inflammatory, docking and molecular characteristic studies of Ni(II) complex of 2-aminonicotinaldehyde using theoretical and experimental methods. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.08.044] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Molecular structure, vibrational analysis (IR and Raman) and quantum chemical investigations of 1-aminoisoquinoline. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.08.060] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Liu C, Gao K, Cui Z, Gao L, Fu DW, Cai HL, Wu XS. New Molecular Ferroelectrics Accompanied by Ultrahigh Second-Harmonic Generation. J Phys Chem Lett 2016; 7:1756-1762. [PMID: 27111056 DOI: 10.1021/acs.jpclett.6b00618] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Second-harmonic generation (SHG) is one of the outstanding properties for practical applications. However, the great majority of molecular ferroelectric materials have very low nonlinear optical coefficients, attenuating their attractive performance. Here we synthesized (4-amino-2-bromopyridinium)(4-amino-2-bromopyridine)tetrafluoroborate (1), whose second-order nonlinear optical coefficient reaches up to 2.56 pm V(-1), 2.67 times of that of KDP, and (4-amino-2-bromopyridinium)tetrafluoroborate (2), possessing a more incredible large second-order nonlinear optical coefficient as high as 10.24 pm V(-1), 10.67 times that of KDP. The compound 1 undergoes two reversible phase transitions at around T1 = 244.1 K and T2 = 154.6 K, caused by dramatic changes of the protonated cations and order-disorder of anions, which was disclosed by differential scanning calorimetry, heat capacity, dielectric anomalies, SHG, and single-crystal X-ray diffraction analysis. The pyroelectric measurements reveal that compound 1 is a Rochelle salt type ferroelectric, which has a large spontaneous polarization of about 3 μC/cm(2).
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Affiliation(s)
- Chuang Liu
- Collaborative Innovation Center of Advanced Microstructures, Lab of Solid State Microstructures, School of Physics, Nanjing University , Nanjing 210093, People's Republic of China
| | - Kaige Gao
- Collaborative Innovation Center of Advanced Microstructures, Lab of Solid State Microstructures, School of Physics, Nanjing University , Nanjing 210093, People's Republic of China
| | - Zepeng Cui
- Collaborative Innovation Center of Advanced Microstructures, Lab of Solid State Microstructures, School of Physics, Nanjing University , Nanjing 210093, People's Republic of China
| | - Linsong Gao
- Collaborative Innovation Center of Advanced Microstructures, Lab of Solid State Microstructures, School of Physics, Nanjing University , Nanjing 210093, People's Republic of China
| | - Da-Wei Fu
- Ordered Matter Science Research Center, College of Chemistry and Chemical Engineering, Southeast University , Nanjing 211189, People's Republic of China
| | - Hong-Ling Cai
- Collaborative Innovation Center of Advanced Microstructures, Lab of Solid State Microstructures, School of Physics, Nanjing University , Nanjing 210093, People's Republic of China
| | - X S Wu
- Collaborative Innovation Center of Advanced Microstructures, Lab of Solid State Microstructures, School of Physics, Nanjing University , Nanjing 210093, People's Republic of China
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Gowri S, Devi TU, Priya S, Dilip CS, Selvanayagam S, Lawrence N. Growth, structure, spectral and optical properties of semiorganic crystal: Pyridine-1-ium-2-carboxylatehydrogenbromide. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 143:192-199. [PMID: 25727296 DOI: 10.1016/j.saa.2015.01.083] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2014] [Revised: 11/04/2014] [Accepted: 01/29/2015] [Indexed: 06/04/2023]
Abstract
Pyridine-1-ium-2-carboxylatehydrogenbromide (PHBr) crystal was grown from aqueous solution by slow evaporation method. The calculated lattice parameters of single crystal X-ray diffraction have shown the triclinic crystal system with centrosymmetric space group of Pī. The interaction of functional groups and their importance in their application was identified by FTIR spectral analysis. The material is optically transparent and the grown crystal is having lower cut off wavelength as 294nm, thereby confirming the enhancement of non-linear optical (NLO) property and optical band gap of the PHBr have been determined as 2.49eV by UV-Vis-NIR studies. The (1)H NMR spectrum confirms the molecular structure and the presence of different kinds of protons.
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Affiliation(s)
- S Gowri
- Department of Physics, Cauvery College for Women, Tiruchirappalli 620018, India
| | - T Uma Devi
- Department of Physics, Government Arts College for Women (Autonomous), Pudukottai, India
| | - S Priya
- Department of Physics, Cauvery College for Women, Tiruchirappalli 620018, India
| | - C Surendra Dilip
- Department of Chemistry, Anna University, BIT Campus, Tiruchirappalli 620024, India.
| | - S Selvanayagam
- Department of Physics, Kalasalingam University, Krishnankoil 626126, India
| | - N Lawrence
- Department of Physics, St. Joseph's College (Autonomous), Tiruchirappalli 620018, India
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Velraj G, Soundharam S, Sridevi C. Investigation of structure, vibrational, electronic, NBO and NMR analyses of 2-chloro-4-nitropyridine (CNP), 2-chloro-4-methyl-5-nitropyridine (CMNP) and 3-amino-2-chloro-4-methylpyridine (ACMP) by experimental and theoretical approach. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 137:790-803. [PMID: 25277627 DOI: 10.1016/j.saa.2014.08.075] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Revised: 08/07/2014] [Accepted: 08/24/2014] [Indexed: 06/03/2023]
Abstract
This study reports about the optimized molecular structures, vibrational wavenumbers, atomic charges, molecular electrostatic potentials, NBO, electronic properties, (1)H NMR and (13)C NMR chemical shifts for the molecules 2-chloro-4-nitropyridine (CNP), 2-chloro-4-methyl-5-nitropyridine (CMNP) and 3-amino-2-chloro-4-methylpyridine (ACMP). Theoretical calculations were performed by density functional theory (DFT)/B3LYP method using 6-311++G (d,p) basis set. The stability and charge delocalization of the title molecules were studied by natural bond orbital (NBO) analysis. Molecular electrostatic potential maps (MEP) were calculated to predict the reactive sites. The reactivity of the title compounds were investigated by HOMO-LUMO energies and global descriptors. The electronic properties of the compounds were also discussed and the transitions were found to be π→π(∗). In addition, the thermodynamic properties were studied for the title compounds and corresponding relations between the properties and temperature were also discussed. The hyperpolarizability values (βtot) were calculated for the title compounds. Hyperpolarizability value (βtot) of CMNP was found to be high and nineteen times greater than that of urea.
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Affiliation(s)
- G Velraj
- Department of Physics, Periyar University, Salem 636011, Tamil Nadu, India.
| | - S Soundharam
- Department of Physics, Selvamm Arts and Science College (Autonomous), Namakkal 637003, Tamil Nadu, India
| | - C Sridevi
- Department of Physics, Sona College of Technology, Salem 636005, Tamil Nadu, India
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Gökce H, Bahçeli S. Spectroscopic and quantum chemical studies on bromopyrazone. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 133:741-751. [PMID: 24996217 DOI: 10.1016/j.saa.2014.06.025] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2014] [Revised: 05/20/2014] [Accepted: 06/03/2014] [Indexed: 06/03/2023]
Abstract
In this study, the FT-IR, micro-Raman and UV-vis. spectra of bromopyrazone molecule, C10H8BrN3O, (with synonym,1-phenyl-4-amino-5-bromopyridazon-(6) or 5-amino-4-bromo-2-phenyl-3(2H)-pyridazinone) were recorded experimentally. The molecular structure, vibrational wavenumbers, electronic transition absorption wavelengths in ethanol solvent, HOMOs and LUMOs analyses, molecular electrostatic potential (MEP), natural bond orbitals (NBO), nonlinear optical (NLO) properties and atomic charges of bromopyrazone molecule have been calculated by using DFT/B3LYP method with 6-311++G(d,p) basis set in ground state. The obtained results show that the calculated vibrational frequencies and UV-vis. values are in a good agreement with experimental data.
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Affiliation(s)
- Halil Gökce
- Vocational High School of Health Services, Giresun University, Güre Campus, 28200 Giresun, Turkey
| | - Semiha Bahçeli
- Süleyman Demirel University, Faculty of Arts and Sciences, Physics Department, Çünür East Campus, 32260 Isparta, Turkey.
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