Journal
POLYHEDRON
Volume 30, Issue 9, Pages 1469-1477Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.poly.2011.02.052
Keywords
Synthesis and characterization; Crystal structure; Ag(I) carborane complexes; 1,2-bis(Dicyclohexylphosphino)-1,2-dicarba-closo-dodecaborane (10); Dihydrogen bonds
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Funding
- National Natural Science Foundation of PR China [20971063]
- Natural Science Foundation of Shandong Province [Y2007B01]
- Shandong Tai-Shan Scholar Research Fund
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Five new carborane dicyclohexylphosphine complexes, [Ag-2(mu-I)(2){1,2-(P Cy-2)(2)-1,2-C2B10H10}(2)] (1), [Ag-2(SCH)(2){1,2-(PCy2)(2)-1,2-C2B10H10}(2)](n)center dot CH2Cl2 (2), [Ag(ClO){1,2-(PCy2)(2)-1,2-C2B10H10}]center dot CH2Cl2 (3), [Ag-2(mu-NO3)(2){1,2-(PCy2)(2)-1,2-C2B10H10}(2)]center dot CH2Cl2 (4) and [Ag(SC6H4COOH){1,2-(PCy2)(2)-1,2-C2B10H10}(2)]center dot CH2Cl2 (5), have been synthesized by the reactions of 1,2-bis(dicyclohexylphosphino)-1,2-dicarba-closo-dodecaborane with AgX (X = I, SCN, ClO4, NO3 and SC6H4COOH) in CH2Cl2. The structures of the five complexes were characterized by elemental analysis, FT-IR, H-1, C-13, B-11 and P-31 NMR spectroscopy. X-ray structure analysis revealed that the structures of the complexes can be classified into three types. Complexes 1 and 4 are di-mu-X-bridged structures and complexes 3 and 5 are mononuclear structures, while complex 2 is a chain-like polymer. Complexes 1 and 2 form 2D supramolecular networks and complexes 3, 4 and 5 form 1D chains via C-H center dot center dot center dot H-B dihydrogen bonding interactions. (C) 2011 Elsevier Ltd. All rights reserved.
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