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Time-resolved circular dichroism of the lowest excited state of (Δ)-Ru(bpy)32+

✍ Scribed by Steven J. Milder; Jon S. Gold; David S. Kliger

Book ID
103029716
Publisher
Elsevier Science
Year
1988
Tongue
English
Weight
353 KB
Volume
144
Category
Article
ISSN
0009-2614

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✦ Synopsis

The circular dichroism (CD) of the excited MLCT state of (A)-Ru(bpy):+ was determined in the region from 260 to 400 nm using time-resolved circular dichroism (TRCD) spectroscopy with multichannel spectral detection. A monosignet CD is seen for the bpy-talc* absorption centered near 370 nm. A bisignet CD is seen for the bpy XX* absorption centered near 300 nm. The positions and magnitudes of these CDs can be understood by comparing them with the CDs of (A)-Ru(bpy)$'2+'3+, The CD of the MLCT state is consistent with the description of the state as Ru( III)(bpy)z(bpy-)z', with a significant amount of coupling between the bpy and bpy-.

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