✦ LIBER ✦

Crystal structures and fluorescence of two Cd(II) complexes based on N-(3-carboxyphenyl)iminodiacetic acid and 5-amino isophthailic acid

✍ Scribed by Wenbing Yuan; Tianfu Liu; Zhengang Guo; Hongfang Li; Rong Cao

Publisher: Elsevier Science
Year: 2010
Tongue: English
Weight: 881 KB
Volume: 965
Category: Article
ISSN: 0022-2860
DOI: 10.1016/j.molstruc.2009.11.042

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✦ Synopsis

Two cadmium(II) coordination polymers, [Cd 6 (L1)

were synthesized under different pH from two multi-carboxylate ligands, N-(3-carboxyphenyl)iminodiacetic acid (H 3 L1) and 5-aminoisophthalic acid (H 2 L2), respectively. Complex 1 has a 2D layer structure, which is generated through 1D zigzag Cd. . .Cd chains with coexisting left-handed and right-handed helices connected together by (L1) 3À . Complex 2 consists of a 2D (3, 6)-connected (4, 3 6 ) net. At room temperature, complex 1 exhibits a strong emission at 442 nm upon excitation at 350 nm, and complex 2 exhibits an intense emission with double peaks at 384 and 400 nm upon excitation at 355 nm.

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