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Cadmium(II) Complexes with 2,2′‐Dithiodibenzoate Ligand: Syntheses, Crystal Structures, and Emission Properties
Author(s) -
Hu Min,
Ma SongTao,
Guo LiangQi,
Zhou LiMing,
Gao LiJun,
Fang ShaoMing,
Liu ChunSen
Publication year - 2010
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.200900307
Subject(s) - stacking , chemistry , ligand (biochemistry) , crystallography , crystal structure , hydrogen bond , protonation , photoluminescence , stereochemistry , block (permutation group theory) , cadmium , molecule , topology (electrical circuits) , materials science , ion , biochemistry , receptor , geometry , optoelectronics , organic chemistry , mathematics , combinatorics
Two new Cd II complexes formulated as {[Cd 3 ( L ) 4 ](H 2 O)(CH 3 OH) 3 (Hdmpy) 2 } ∞ ( 1 ) and {[Cd 2 ( L ) 2 (phen) 2 (H 2 O) 2 ]} ∞ ( 2 ) were prepared by a slow diffusion method from mixtures of 2,2′‐dithiodibenzoic acid (H 2 L ) and Cd(ClO 4 ) 2 · 6H 2 O in the presence or absence of auxiliary phen ligand ( L = 2,2′‐dithiodibenzoate, Hdmpy = protonated 2,6‐dimethylpyridine, and phen = 1,10‐phenanthroline). Their structures were determined by single‐crystal X‐ray diffraction technique. Complex 1 possesses a three‐dimensional (3D) α‐Po‐related framework containing [Cd 3 ( L ) 4 ] 2– cluster units as secondary building block, with a 4 12 6 3 topology symbol. Complex 2 takes a one‐dimensional (1D) helical chain structure that is further assembled into a two‐dimensional (2D) network by the co‐effects of the inter‐chain O–H ··· O and C–H ··· O hydrogen bonds as well as π ··· π stacking interactions. Complexes 1 and 2 are both photoluminescent active materials, and their emission properties are closely related to their intrinsic structure arrangements.