Crystal Structure, Reactivity, and Photochemical Properties of Tungsten(0) Zwitterionic Amido Complex (CO)5 WNPhNPhC(OMe)Ph.
Abstract
The crystal structure of the zwitterionic complex (CO)5WNPhNPhC(Ph)OMe (1) shows that it is best described as an amido complex in which the 'imidate' fragment PhN=C(Ph)OMe serves as a substituent on the amide nitrogen. The structural information allows the previously reported conversion of 1 to an isomeric zwitterion to be assigned as simple rotation about the N-C double bond. The twisted intermediate for such a rotation also offers a pathway for the previously reported isomerization of 1 to a 2,4-diazametallacycle. The electronic spectrum of 1 reveals a low energy MLCT transition that is responsible for its photodecomposition via N-N bond cleavage. INDO/1 CI calculations support assignment of the MLCT band as the HOMO to LUMO transition, where depopulation of the HOMO initiates the cleavage of the N-N bond.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1996
- Accession Number
- ADA309126
Entities
People
- Khalil A. Abboud
- Lisa Mcelwee-white
- Nicholas D. Barnett
- Scott T. Massey
Organizations
- University of Florida