Late transition metal bis(thioether)silane complexes

INOR 118

Lissette I. Lozano-Lewis, lilozano@uncc.edu1, Keily Heredia, deyanerys17@hotmail.com1, Kevin A. Kreisel2, Glenn P. A. Yap2, Robert D. Pike, rdpike@wm.edu3, and Daniel Rabinovich, drabinov@email.uncc.edu1. (1) Department of Chemistry, The University of North Carolina at Charlotte, 9201 University City Boulevard, Charlotte, NC 28223, (2) Department of Chemistry and Biochemistry, University of Delaware, Newark, DE 19716, (3) Department of Chemistry, College of William and Mary, P.O. Box 8795, Williamsburg, VA 23187-8795
The bis(thioether)silanes Me2Si(CH2SR)2 (R = Me, Pri, But, Ad) constitute a new family of dithioether ligands whose coordination chemistry we are actively pursuing. Copper(I) halides CuX react with equimolar amounts of Me2Si(CH2SMe)2 to yield products having the expected 1:1 stoichiometry but rather different structures in the solid state. Whereas the bromo and iodo compounds exhibit dimeric structures, the chloro derivative consists of a complex cation [Cu{Me2Si(CH2SMe)2}2]+ and the copper(I) dichloride anion [CuCl2]-. The cationic homoleptic complex can also be prepared independently and isolated as its BF4- or PF6- salts. In addition, unprecedented three-coordinate Cu(I) halide complexes {Me2Si(CH2SR)2}CuX (X = Cl, Br) are isolated when the more sterically demanding ligands (R = But, Ad) are used. This presentation will also describe the preparation of several related species of silver(I), gold(I) and palladium(II), some of which have unusual structural features (e.g., low coordination numbers), interesting properties (e.g., luminescence) or unexpected applications (e.g., biological activity).
 

Characterization and Applications of Coordination Compounds
1:30 PM-5:50 PM, Sunday, August 19, 2007 BCEC -- 213, Oral

Division of Inorganic Chemistry

The 234th ACS National Meeting, Boston, MA, August 19-23, 2007