Amazing reactions of Re2(CO)10 with diimines in 1-pentanol

CHED 1142

Tameka S. Taylor, taylor_tameka@yahoo.com1, Dejene K. Orsa, br24wn@yahoo.com1, George E. Greco, ggreco@goucher.edu2, Jeanette A. Krause, jeanette.krause@uc.edu3, DM. Ho4, and Santosh K. Mandal, smandal@morgan.edu1. (1) Department of Chemistry, Morgan State University, 1700 E. Cold Spring Lane, Baltimore, MD 21251, (2) Department of Chemistry, Goucher College, 1021 Dulaney Valley Road, Baltimore, MD 21204, (3) Department of Chemistry, University of Cincinnati, P.O. Box 210172, Cincinnati, OH 45221-0172, (4) Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, B05-B06, Cambridge, MA 02138
Reactions of M2(CO)10 (M = Mn or Re) with chelated diphosphines (P-P) in 1-pentanol yield the corresponding hydrides, fac-(CO)3(P-P)MH (Inorg. Chem. Com. 2005, 8, 14). Surprizingly the reactions of Re2(CO)10 with diimines (N-N) do not produce the corresponding hydrides. The formation of the products are highly ligand dependent. For example, the reaction of Re2(CO)10 with 2.2'-bipyridyl (bipy) in 1-pentanol yields exclusively the corresponding pentyloxide, fac-(CO)3(bipy)ReOC5H11. When the ligand is 1,10-phenanthroline, the products are the expected alkoxide and a reduced dirhenium complex. When 2,9-dimethyl-1,10-phenanthroline is used, a novel tetrarhenium salt and the expected alkoxide are obtained. The synthetic procedures, characterizations, and the X-ray structures of some novel compounds will be presented.
 

Undergraduate Research Poster Session: Inorganic Chemistry
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The 235th ACS National Meeting, New Orleans, LA, April 6-10, 2008