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Pseudohalide‐directed Assembly of Two Zinc(II) Coordination Polymers with a 3,4‐Bis(3‐pyridyl)‐5‐(4‐pyridyl)‐1,2,4‐triazole Tecton
Author(s) -
Chen Qi,
Bi Yan,
Chen Jing
Publication year - 2016
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201600301
Subject(s) - thiocyanate , denticity , chemistry , zinc , crystallography , ligand (biochemistry) , crystal structure , octahedron , 1,2,4 triazole , infrared spectroscopy , thermal stability , triazole , stereochemistry , inorganic chemistry , medicinal chemistry , organic chemistry , receptor , biochemistry
The zinc(II) pseudohalide complexes {[Zn(L 334 )(SCN) 2 (H 2 O)](H 2 O) 2 } n ( 1 ) and [Zn(L 334 )(dca) 2 ] n ( 2 ) were synthesized and characterized using the ligand 3,4‐bis(3‐pyridyl)‐5‐(4‐pyridyl)‐1,2,4‐triazole (L 334 ) and ZnCl 2 in presence of thiocyanate (SCN – ) and dicynamide [dca, N(CN) 2 – ] respectively. Single‐crystal X‐ray structural analysis revealed that the central Zn II atoms in both complexes have similar octahedral arrangement. Compound 1 has a 2D sheet structure bridged by bidentate L 334 and double μ N,S ‐thiocyanate anions, whereas complex 2 , incorporating with two monodentate dicynamide anions, displays a two‐dimensional coordination framework bridged by tetradentate L 334 ligand. Structural analysis demonstrated that the influence of pseudohalide anions plays an important role in determining the resultant structure. Both complexes were characterized by IR spectroscopy, microanalysis, and powder X‐ray diffraction techniques. In addition, the solid fluorescence and thermal stability properties of both complexes were investigated.