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Shaik A, Palaniswamy P, Thiruvenkatam V. Investigating structural aspects of Pyridopyrimidinone derivatives, an important precursor in medicinal chemistry. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Bhat SA, Ahmad S. Quantum chemical and spectroscopic investigations of 4-Hydroxy-7-methyl-1,8-naphthyridine-3-carboxylic acid. JOURNAL OF THEORETICAL & COMPUTATIONAL CHEMISTRY 2016. [DOI: 10.1142/s0219633616500425] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The FTIR (4000–400[Formula: see text]cm[Formula: see text]) and the FT-Raman spectra (4000–50[Formula: see text]cm[Formula: see text]) of 4-Hydroxy-7-methyl-1,8-naphthyridine-3-carboxylic acid are recorded and investigated. The spectra are interpreted using anharmonic frequency computations by VPT2, VSCF and PT2-VSCF methods within DFT/6-311G(d,p) framework. The root mean square (RMS) values indicate that VSCF computed frequencies are in close agreement with the observed frequencies. The combination and overtone bands are also identified in the FTIR spectrum. The intermolecular O-H[Formula: see text]O hydrogen bonding interactions are discussed in the dimer structure of the molecule. The magnitudes of the coupling between pair of modes are also computed. The electronic spectra in water and ethanol solvents are analyzed using TD-B3LYP/6-311[Formula: see text]G(d,p) level of theory. Molecular electrostatic potential (MEP) and HOMO-LUMO analysis are also performed.
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Affiliation(s)
- Sheeraz Ahmad Bhat
- Department of Physics, Aligarh Muslim University, Aligarh-U.P202002, India
| | - Shabbir Ahmad
- Department of Physics, Aligarh Muslim University, Aligarh-U.P202002, India
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Tóth G, Hermecz I, Breining T, Mészáros Z, Bitter I. Stereochemistry and13C NMR investigation of 9-halotetrahydro-4H-pyrido[1,2-a]pyrimidin-4-ones. J Heterocycl Chem 2009. [DOI: 10.1002/jhet.5570200322] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Recent Developments in the Chemistry of Pyrido[1,2-a]pyrimidines. ADVANCES IN HETEROCYCLIC CHEMISTRY 1995. [DOI: 10.1016/s0065-2725(08)60473-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Horváth G, Hermecz I, Pusztay L, Kiss AI. Infrared spectra of tetrahydrophyrido[1,2-a]pyrimidin-4-one derivatives. Analyst 1992. [DOI: 10.1039/an9921700371] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Schwartz A, Pál Z, Szabó L, Simon K, Hermecz I, Mészáros Z. Nitrogen bridgehead compounds, part68. Studies on quinolizine derivatives. Part2. Synthesis of 1,3-disubstituted-4H-quinolizine derivatives. J Heterocycl Chem 1987. [DOI: 10.1002/jhet.5570240320] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Schwartz A, Pál Z, Szabó L, Hermecz I, Mészáros Z. Nitrogen bridgehead compounds. Part69. Studies on quinolizine derivatives. Part3. Infrared and1H NMR spectroscopic studies of quinolizine derivatives and their monocyclic tautomers. J Heterocycl Chem 1987. [DOI: 10.1002/jhet.5570240321] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Horváth ÁG, Hermecz I. Nitrogen bridgehead compounds. Part65. Vilsmeier-haack formylation of 4H-pyrido[1,2-a]pyrimidin-4-ones. Part6. J Heterocycl Chem 1986. [DOI: 10.1002/jhet.5570230507] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Horváth G, Hermecz I, Horváth Á, Pongor-Csákvári M, Pusztay L, Kiss ÁI, Czakó L, Abdirizak OH. Electronic structure of 4H-pyrido[1,2-a]pyrimidin-4-ones. J Heterocycl Chem 1985. [DOI: 10.1002/jhet.5570220255] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Papp O, Szász G, Valkó K. Relation of gas chromatographic behaviour to the chemical structure of pyrido[1,2a]pyrimidine derivatives. J Chromatogr A 1980. [DOI: 10.1016/s0021-9673(00)86385-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Tóth G, Hermecz I, Mészáros Z. Nitrogen bridgehead compounds. PartX(1).1H and13C nmr study of pyrido[1,2-a]pyrimidines. J Heterocycl Chem 1979. [DOI: 10.1002/jhet.5570160618] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Investigation of frequency coupling in the IR spectra of 4H-pyrido(1,2a)pyrimidin-4-one derivatives. Tetrahedron 1977. [DOI: 10.1016/0040-4020(77)80018-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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