Different coordination modes of 3,4-pyridinedicarboxylic acid and 1,4-bis((1H-imidazoyl-1-yl)methyl)benzene in two new coordination polymers of ZINC(II) and nickel(II)
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VODĂ, Irina, DRUŢĂ, Vadim, INDRICEAN, Constantin, LOZAN, Vasile, SHOVA, Sergiu, TURTA, Constantin. Different coordination modes of 3,4-pyridinedicarboxylic acid and 1,4-bis((1H-imidazoyl-1-yl)methyl)benzene in two new coordination polymers of ZINC(II) and nickel(II). In: Materials Science and Condensed Matter Physics, Ed. 7, 16-19 septembrie 2014, Chișinău. Chișinău, Republica Moldova: Institutul de Fizică Aplicată, 2014, Editia 7, p. 174.
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Materials Science and Condensed Matter Physics
Editia 7, 2014
Conferința "Materials Science and Condensed Matter Physics"
7, Chișinău, Moldova, 16-19 septembrie 2014

Different coordination modes of 3,4-pyridinedicarboxylic acid and 1,4-bis((1H-imidazoyl-1-yl)methyl)benzene in two new coordination polymers of ZINC(II) and nickel(II)

Pag. 174-174

Vodă Irina, Druţă Vadim, Indricean Constantin, Lozan Vasile, Shova Sergiu, Turta Constantin
 
Institute of Chemistry of the Academy of Sciences of Moldova
 
Proiecte:
 
Disponibil în IBN: 6 martie 2019
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Metal-organic frameworks (MOFs) also known as coordination polymers have become of great interest during the past few decades due to their interesting properties and fields of application [1]. Recently, a number of publications aiming coordination polymers with mixed ligands appeared [2-4]. Here we report the synthesis of two new three-dimensional MOFs of zinc(II) and nickel(II) using 1,4-bis(1H-imidazoyl-1-yl)methyl)benzene (BIB) and 3,4-pyridinedicarboxylic acid (3,4-PyDC) as ligands. Compounds display very different architectures (Fig. 1). In the zinc compound the metal center has the number of coordination 4 and a tetrahedral environment, the BIB ligand adopts the anti- conformation, and 3,4-PyDC coordinates to the metal only through the two monodentate carboxylic groups, the coordinaton node being ZnN2 BIBO2 3,4-PyDC, whereas in the nickel compound, 3,4-PyDC coordinates to the metal through both nitrogen atom and the two monodentate carboxylic groups. In this case the BIB ligand takes a syn- conformation, a water molecule completes the coordination sphere at metal center, so that nickel ion adopts the coordination number 6 and a distorted octahedral geometry. The coordination node is NiN2 BIBN3,4-PyDCO2 3,4-PyDCOH 2 O. Fig. 1. A fragment of zinc (left) and nickel (right) MOFs. Currently, the compounds are subjected to the investigation of their sorption properties.

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