Mixed-ligand polymeric and binuclear silver(I) complexes with the dodecahydro-closo-dodecaborate anion and bipyridylamine

Polymeric and binuclear complexes with the dodecahydro-closo-dodecaborate anion as bridging ligand and terminal bipyridylamine molecules were synthesized by varying reaction conditions. [Display omitted] The mixed-ligand silver(I) complexes [Ag2(bpa)2[B12H12]]n (1), [Ag2(bpa)2[B12H12]]·2DMF (3·2DMF)...

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Bibliographic Details
Published in:Polyhedron 2016-04, Vol.109, p.19-25
Main Authors: Kochneva, Irina K., Avdeeva, Varvara V., Polyakova, Irina N., Malinina, Elena A.
Format: Article
Language:English
Subjects:
Boron clusters
Coordination compounds
Dodecahydro-closo-dodecaborate
Silver
X-ray diffraction
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Summary:Polymeric and binuclear complexes with the dodecahydro-closo-dodecaborate anion as bridging ligand and terminal bipyridylamine molecules were synthesized by varying reaction conditions. [Display omitted] The mixed-ligand silver(I) complexes [Ag2(bpa)2[B12H12]]n (1), [Ag2(bpa)2[B12H12]]·2DMF (3·2DMF), and [Ag2(Ph3P)2(bpa)2[B12H12]] (4) are synthesized and characterized by IR-spectroscopy and X-ray diffraction. It is found that the polymeric 1 and binuclear 3 complexes are selectively formed in acetonitrile and DMF solutions, respectively. The addition of Ph3P prevents polymerization in acetonitrile and affords binuclear complex 4 in both solvents. Possible mechanisms of the complexation reactions are discussed.
ISSN:0277-5387
DOI:10.1016/j.poly.2016.01.045