Journal
JOURNAL OF COORDINATION CHEMISTRY
Volume 57, Issue 13, Pages 1157-1163Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/0095897042000261926
Keywords
synthesis; crystal structure; cadmium complex; fluorescence; polynitrile bridging ligand
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The novel one-dimensional chain coordination polymer {[Cd(Cda)2H(2)O](H2O)-H-.}(n) (cda = carbamyldicyanomethanide anion) has been synthesized and its crystal structure determined by X-ray crystallography. The complex crystallizes in a triclinic system with a space group P1 and a = 7.217(2), b = 7.641(2), c = 11.806(3) Angstrom, alpha = 79.403(4), beta = 79.859(4), gamma = 72.028(4)degrees. The cadmium(II) ion is coordinated by four nitrogen atoms from four nitrile groups and two oxygen atoms, one from an amide group and one from a water molecule. The coordination environment of the cadmium(II) is a distorted octahedron. The bridging ligand cda displays two coordination modes, mu(1,5)-cda and mu(3)-cda, and a one-dimensional chain is formed through these two kinds of coordination. A solution of the coordination polymer exhibits strong fluorescence.
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