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Articolul precedent |
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SM ISO690:2012 GOROBEŢ, Anastasia, CRIŞAN, Manuela E., PETRIC, M., BOUROSH, Pavlina, CROITOR, Lilia. Structural study of Ca(II) coordination compound with triethanolamine and 4-nitrobenzoic acid. In: Revue Roumaine de Chimie, 2018, vol. 63, pp. 1175-1179. ISSN 0035-3930. |
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Revue Roumaine de Chimie | |||||||
Volumul 63 / 2018 / ISSN 0035-3930 | |||||||
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Pag. 1175-1179 | |||||||
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The synthesis of a new calcium complex based on biologically active ligands with N and O donor atoms is an attractive research topic in modern synthetic chemistry. Herein we present the formation of AB2- type salt [Ca(TEA) 2 ](4NB) 2 (1) by an easy method, starting from CaF 2 , 4-nitrobenzoic acid (4NBH) and triethanolamine (TEA). The crystal structure comprises one [Ca(TEA) 2 ] 2+ complex cation and two 4NB- anions. In the complex cation, each TEA molecule behaves as an N,O,O',O'-tetradentate ligand, giving rise to an eight-coordinate Ca(II) ion with a distorted cubic configuration. The complex cation is H-bonded with outer-sphere 4NB- anions by intermolecular O-H O hydrogen bond interactions. The intermolecular O-H O hydrogen bonds unite components in well-defined 1D supramolecular chain, which are further assembled in a supramolecular 2D layer via π- π stacking interactions. |
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