Journal
INORGANIC CHEMISTRY
Volume 44, Issue 9, Pages 3283-3289Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ic0482178
Keywords
-
Categories
Funding
- NIBIB NIH HHS [EB-001956] Funding Source: Medline
Ask authors/readers for more resources
Electronic absorpt on and resonance Raman spectral studies of benzoylruthenocene (BRc) and 1,1'-dibenzoyl-ruthenocene (DRc indicate that the low-energy electronic excited states of these 4d(6) metallocenes possess metal-to-ligand charge transfer (MILCT) character. While this MLCT contribution should weaken the metal-ring bonding in the excited state, neither compound is photosensitive in nonhalogenated solvents such as methanol, acetonitrile, and cyclohexane. In contrast, irradiating BRc and DRc in the good electron-accepting solvent, carbon tetrachloride, results in ring loss via a pathway that appears to originate from a charge-transfer-to-solvent excited state. Both metallocenes function as photoinitiators for the anionic polymerization of ethyl 2-cyanoacrylate, and the kinetics and mechanism of this process have been investigated. Comparing the present results on BRc and DRc with those reported earlier for the corresponding benzoyl-substituted ferrocene compounds reveals some interesting commonalities and differences between the excited-state properties of these 3d and 4d metallocenes.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available