Characterization of transient species and products in photochemical reactions of Re(dmb) (CO)3 Et with and without CO2

Characterization of transient species and products in photochemical reactions of Re(dmb) (CO)3 Et... Transient FT-IR spectra of fac-Re(dmb)(CO)3(Et) after laser excitation (355 nm) were investigated in THF under Ar and CO2 atmospheres. The CO stretching bands of Re(dmb⊙)(CO)3(THF) grow (2008 and 1897 cm−1) and those of Re(dmb)(CO)3(Et) bleach (1987 and 1875 cm−1) at times <1 μs, consistent with clean cleavage of the Re-Et bond. Under a CO2 atmosphere, the long-lived radical (τ>100 ms) converts slowly to the formato complex Re(dmb)(CO)3(OC(O)H) (2020, 1916, 1873 and 1630 cm−1). When the solvent is slightly wet, the bicarbonato complex, Re(dmb)(CO)3(OC(O)OH), is also observed after photolysis under CO2. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Characterization of transient species and products in photochemical reactions of Re(dmb) (CO)3 Et with and without CO2

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Publisher
Springer Netherlands
Copyright
Copyright © 2007 by Springer
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1163/156856707779160807
Publisher site
See Article on Publisher Site

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