Resonance Raman and time-resolved resonance Raman studies of complexes of divalent ruthenium with bipyridine and 4,4′-bipyrimidine ligands

Authors

David J. Ma'nuel, Idaho State University
Dennis P. Strommen, Idaho State University
Anwar Bhuiyan, Arkansas Tech UniversityFollow
Milan Sykora, Marquette University
James R. Kincaid, Marquette University

Document Type

Article

Publication Date

1-1-1997

Department

Physical & Earth Sciences

Abstract

Resonance Raman (RR) and time-resolved resonance Raman (TR ) spectra are reported for the complexes of divalent ruthenium with the ligands 4,4′-bipyrimidine (bpm) and 2,2′-bipyridine (bpy), i.e. Ru(bpm) and Ru(bpy) (bpm) . Ground-state RR studies of the latter employing excitation with radiation of 413.1, 457.9 and 514.5 nm permit the assignment of an electronic absorption band maximizing at 428.5 nm to a Ru(II)-to-bpy charge-transfer transition, while the band maximum at 516.0 nm is assigned to the Ru(II)-to-bpm charge-transfer band. The TR studies employing the 354.7 nm harmonic of a 10 ns pulsed Nd:YAG laser provide definitive evidence for selective population of the bpm-localized excited state for the heteroleptic complex Ru(bpy) (bpm) . © 1997 John Wiley & Sons, Ltd.

DOI

10.1002/(sici)1097-4555(199712)28:12<933::aid-jrs185>3.3.co;2-2

First Page

933

Last Page

938

Volume

28

Issue

12

Publication Title

Journal of Raman Spectroscopy

ISSN

03770486

Comments

At the time of publication, Anwar A. Bhuiyan was affiliated with Marquette University.

Recommended Citation

Ma'Nuel, D. J., Strommen, D. P., Bhuiyan, A., Sykora, M., & Kincaid, J. R. (1997). Resonance Raman and time‐resolved resonance Raman studies of complexes of divalent ruthenium with bipyridine and 4, 4′‐bipyrimidine ligands. Journal of Raman spectroscopy, 28(12), 933-938.