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Three Novel Mixed‐ligand Cadmium(II) Sulfonates with Aza‐aromatic Skeltons as Co‐ligands
Author(s) -
Yang EnCui,
Dai PeiXia,
Wang XiuGuang,
Ding Bin,
Zhao XiaoJun
Publication year - 2007
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.200600321
Subject(s) - denticity , chemistry , ligand (biochemistry) , intramolecular force , stacking , crystal structure , sulfonate , crystallography , bipyridine , stereochemistry , cadmium nitrate , cadmium , medicinal chemistry , receptor , organic chemistry , biochemistry , sodium
To survey the influence of aza‐aromatic co‐ligands on the structure of Cadmium(II) sulfonates, three Cd(II) complexes with mixed‐ligand, [Cd II (ANS) 2 (phen) 2 ] ( 1 ), [Cd II (ANS) 2 (2,2′‐bipy) 2 ] ( 2 ) and [Cd II (ANS) 2 (4,4′‐bipy) 2 ] n ( 3 ) (ANS = 2‐aminonaphthalene‐1‐sulfonate; phen = 1,10‐phenanthroline; 2,2′‐bipy = 2,2′‐bipyridine; 4,4′‐bipy = 4,4′‐bipyridine) were synthesized by hydrothermal methods and structurally characterized by elemental analyses, IR spectra, and single crystal X‐ray diffraction. Of the three complexes, ANS consistently coordinates to Cd 2+ ion as a monodentate ligand. While phen in 1 and 2,2′‐bipy in 2 act as N,N ‐bidentate chelating ligands, leading to the formation of a discrete mononuclear unit; 4,4′‐bipy in 3 bridges two Cd II atoms in bis‐monodentate fashion to produce a 2‐D layered network, suggesting that the conjugate skeleton and the binding site of the co‐ligands have a moderate effect on molecular structure, crystal stacking pattern, and intramolecular weak interactions. In addition, the three complexes exhibit similar luminescent emissions originate from the transitions between the energy levels of sulfonate anions.