Publication Date:
2016-02-03
Description:
Three different tetrazole-carboxylate ligands, Hpymtza, Hpytza, and H 2 dtzeda were chosen to be reacted with Ca(NO 3 ) 2 · 4H 2 O, resulting in the formation of three coordination compounds, [Ca(pymtza) 2 (H 2 O) 4 ] ( 1 ), [Ca(pytza) 2 (H 2 O) 2 ] ( 2 ), and [Ca(dtzeda)(H 2 O) 2 ] ( 3 ) [Hpymtza = 5-(2-pyrimidyl)tetrazole-1-acetic acid, Hpytza = 5-(3-pyridyl)tetrazole-2-acetic acid, and H 2 dtzeda = 1, 2-bis(tetrazol-5-yl)ethane-N1, N1′-diacetic acid]. X-ray diffraction analysis revealed that compound 1 displays a mononuclear structure, compound 2 is a one dimensional zigzag chain structure, whereas 3 shows a three-dimensional structure. The structures were controlled by not only the different substituents of the tetrazolyl ring, but also the complementary hydrogen bonds. Furthermore, the luminescence properties of compounds 1 – 3 were investigated at room temperature in the solid state. These emissions can be tentatively attributed to the ligand centered emission.
Print ISSN:
0044-2313
Electronic ISSN:
1521-3749
Topics:
Chemistry and Pharmacology
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