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Manganese(II), lead(II) and cadmium(II) coordination complexes containing a tetrazole‐based acylamide ligand: synthesis and the influence of the metal ions on the structures
Author(s) -
Lin Xiao-Ying,
Zheng Qin-Qin,
Gong Ling-Zhu,
Liu Ya-Min,
Liu Min-Yi,
Liu Xin-Zhong
Publication year - 2018
Publication title -
acta crystallographica section c
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 17
ISSN - 2053-2296
DOI - 10.1107/s2053229617018101
Subject(s) - manganese , tetrazole , cadmium , ligand (biochemistry) , chemistry , coordination complex , metal , metal ions in aqueous solution , inorganic chemistry , stereochemistry , organic chemistry , receptor , biochemistry
Three new manganese(II), lead(II) and cadmium(II) coordination complexes have been prepared by reaction of N ‐(1 H ‐tetrazol‐5‐yl)cinnamamide (HNTCA) with divalent metal salts (MnCl 2 , PbCl 2 and CdCl 2 ) in a mixed‐solvent system, affording mononuclear to trinuclear structures namely, bis(methanol‐κ O )bis[5‐(3‐phenylprop‐2‐enamido)‐1 H ‐1,2,3,4‐tetrazol‐1‐ido‐κ 2 N 1 , O ]manganese(II), [Mn(C 10 H 8 N 5 O) 2 (CH 3 OH) 2 ], (1), bis[μ‐5‐(3‐phenylprop‐2‐enamido)‐1 H ‐1,2,3,4‐tetrazol‐1‐ido]‐κ 3 N 1 , O : N 2 ;κ 3 N 2 : N 1 , O ‐bis{aqua[5‐(3‐phenylprop‐2‐enamido)‐1 H ‐1,2,3,4‐tetrazol‐1‐ido‐κ 2 N 1 , O ]lead(II)}, [Pb 2 (C 10 H 8 N 5 O) 4 (H 2 O) 2 ], (2), and hexakis[μ 2 ‐5‐(3‐phenylprop‐2‐enamido)‐1 H ‐1,2,3,4‐tetrazol‐1‐ido‐κ 3 N 1 , O : N 2 ]tricadmium(II), [Cd 3 (C 10 H 8 N 5 O) 6 ], (3). The structures of these three compounds reveal that the nature of the metal ions and the side groups of the organic building blocks have a significant effect on the structures of the coordination compounds formed. Intermolecular hydrogen bonds link the molecules into two‐dimensional [complex (1)] and three‐dimensional hydrogen‐bonded networks. Complexes (2) and (3) show significant fluorescence, while complex (1) displays no fluorescence.