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Mono(dinitrogen) and Carbon Monoxide Adducts of Bis(cyclopentadienyl) Titanium Sandwiches

Supporting Info

Tamara E. Hanna, Emil Lobkovsky, and Paul J. Chirik*

Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853

J. Am. Chem. Soc., 2006, 128 (18), pp 6018–6019

DOI: 10.1021/ja061213c

Publication Date (Web): April 15, 2006

In papers with more than one author, the asterisk indicates the name of the author to whom inquiries about the paper should be addressed.

, pc92@cornell.edu

Abstract

The silyl-substituted titanocene complex, (η⁵-C₅Me₄SiMe₂Ph)₂Ti, coordinates dinitrogen upon cooling to −35 °C to yield an unprecedented example of a mono(dinitrogen) complex of a substituted bis(cyclopentadienyl) titanium compound, (η⁵-C₅Me₄SiMe₂Ph)₂Ti(N₂). Analogous monocarbonyl derivatives, (η⁵-C₅Me₄R)₂Ti(CO) (R = SiMe₃, SiMe₂Ph, CHMe₂), have been prepared by mixing the dicarbonyl compounds with the corresponding sandwiches. Both (η⁵-C₅Me₄SiMe₂Ph)₂Ti(N₂) and (η⁵-C₅Me₄SiMe₂Ph)₂Ti(CO) have been characterized by X-ray diffraction, and mixed N₂−CO titanocene complexes have also been observed by in situ IR spectroscopy.

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Published In Issue May 10, 2006
Received February 20, 2006

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Communication

Mono(dinitrogen) and Carbon Monoxide Adducts of Bis(cyclopentadienyl) Titanium Sandwiches