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Synthesis, spectroscopic properties and theoretical calculations on methylene bridged 1,8-naphthyridine ligands and copper(I) complex through a non-catalyst C(<em>sp</em><sup>3</sup>)–H methylenation<br />

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Title Statement Synthesis, spectroscopic properties and theoretical calculations on methylene bridged 1,8-naphthyridine ligands and copper(I) complex through a non-catalyst C(<em>sp</em><sup>3</sup>)–H methylenation<br />
 
Added Entry - Uncontrolled Name Gou, Gaozhang ; Honghe University
Zhou, Bo ; aSchool of Science, Honghe University, Mengzi, Yunnan 661199, PR China
Chen, Xue-Bing ; School of Science, Honghe University, Mengzi, Yunnan 661199, PR China
Wang, Xue-Quan ; School of Science, Honghe University, Mengzi, Yunnan 661199, PR China
Mang, Chao-Yong ; College of Pharmaceutical Science and Chemistry, Dali University, Dali, Yunnan 671000, PR China
Liu, Wei ; School of Science, Honghe University, Mengzi, Yunnan 661199, PR China
Chi, Shao-Ming ; College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650092, PR China
the National Natural Science Foundation of China
 
Uncontrolled Index Term synthetic and structural inorganic chemistry, theoretical & quantum chemistry
Coordination chemistry, Density functional calculations, Metal-to-ligand charge-transfer, Crystal structure, Spectroscopic properties, 1,8-Naphthyridine, Copper
 
Summary, etc. Two 1,8-naphthyridine derivatives containing methylene, N-(5-methyl-7-((3-oxo-1,3-dihydroisobenzofuran-1-yl)methyl)-1,8-naphthyridin-2-yl)acetamide (<strong>L1</strong>) and 2-amino-3-((7-amino-4-methyl-1,8-naphthyridin-2-yl)methyl)isoindolin-1-one (<strong>L2</strong>), as well as a copper(I) complex CuI(L1)<sub>2</sub> (<strong>C1</strong>) have been synthesized through a non-catalyst C(<em>sp</em><sup>3</sup>)–H methylenation process and characterized. The structure of <strong>C1</strong> has been determined by X-ray diffraction analysis. The spectroscopic properties have been investigated by experimental as well as theoretical studies for all these compounds. The two ligands exhibit similar electronic absorption spectra with λ<sub>max</sub> at about 340 nm, which can be tentatively assigned to π<sub>naph</sub>→π<sub>naph</sub>* transition. The electronic absorption spectra of <strong>C1</strong> exhibits at ~335 nm except in <em>n</em>-hexane, which may be assigned tentatively to the intraligand charge transfer transition. The assignment is further supported by density functional theory calculations and cyclic voltammetry.
 
Publication, Distribution, Etc. Indian Journal of Chemistry -Section A (IJCA)
2020-10-23 12:45:04
 
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http://op.niscair.res.in/index.php/IJCA/article/view/13158
 
Data Source Entry Indian Journal of Chemistry -Section A (IJCA); ##issue.vol## 56, ##issue.no## 2 (2017): INDIAN JOURNAL OF CHEMISTRY - SECTION A
 
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Nonspecific Relationship Entry http://op.niscair.res.in/index.php/IJCA/article/download/13158/38203
http://op.niscair.res.in/index.php/IJCA/article/download/13158/38212
http://op.niscair.res.in/index.php/IJCA/article/download/13158/43580
 
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