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Self‐Assembly of 1D to 3D Cadmium Complexes: Structural Characterization and Properties
Author(s) -
Li Xing,
Cao Rong,
Bi Wenhua,
Yuan Daqiang,
Sun Daofeng
Publication year - 2005
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200400983
Subject(s) - chemistry , thermogravimetric analysis , cationic polymerization , crystallography , cadmium , hydrothermal circulation , stereochemistry , polymer chemistry , chemical engineering , organic chemistry , engineering
Self‐assembly reactions of 5‐sulfoisophthalic monosodium salt (NaH 2 sipa), Cd(NO 3 ) 2 · 4H 2 O and 2,2'‐bipyridine (or 4,4'‐bipyridine) under hydrothermal condition give rise to four polymeric complexes, namely {[Cd 3 (sipa) 2 (2,2'‐bpy) 4 (H 2 O) 2 ] · 6H 2 O} n ( 1 ), {[Cd(sipa)(H‐4,4'‐bpy)(H 2 O)] · 2H 2 O} n ( 2 ); {[Cd 2 (sipa)(4,4'‐bpy) 3 (H 2 O) 3 ] · [Cd(sipa)(4,4'‐bpy)(H 2 O)] · 8H 2 O} n ( 3 ),and {[Cd 3 (sipa) 2 (4,4'‐bpy) 4 (H 2 O) 2 ] · 3H 2 O} n ( 4 ), respectively. X‐ray diffraction analyses reveal that complex 1 possesses a 1D rail‐like chain structure, 2 is a 1D double chain, 3 has a 2D network consisting of an independent [Cd 2 (sipa)(4,4'‐bpy) 3 (H 2 O) 3 ] n n + cationic layer and a [Cd(sipa)(4,4'‐bpy)(H 2 O)] n n – anionic layer, and 4 is a novel 3D self‐penetrating network constructed from two mixed bridging ligands. Thermogravimetric analyses (TGA) and fluorescent measurements of complexes 1 – 4 have also been performed. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)