Resonance Raman spectra of electrochemically generated chlorophyll a cation radical

1988 ◽  
Vol 92 (17) ◽  
pp. 4820-4824 ◽  
Author(s):  
Randall L. Heald ◽  
Patricia M. Callahan ◽  
Therese M. Cotton
Keyword(s):  
Chlorophyll A ◽  
Raman Spectra ◽  
Resonance Raman ◽  
Cation Radical ◽  
Resonance Raman Spectra

Solvent effects on the resonance Raman spectra of bacteriochlorophyll a cation radical

1995 ◽  
Vol 236 (4-5) ◽  
pp. 413-418 ◽  
Author(s):  
Yasuhito Misono ◽  
Ei-ichi Nishizawa ◽  
Leenawaty Limantara ◽  
Yasushi Koyama ◽  
Koichi Itoh
Keyword(s):  
Raman Spectra ◽  
Solvent Effects ◽  
Resonance Raman ◽  
Cation Radical ◽  
Bacteriochlorophyll A ◽  
Resonance Raman Spectra

Darstellung und spektroskopische Charakterisierung von Nitridophthalocyaninatomangan(V) / Preparation and Spectroscopical Characterization of Nitridophthalocyaninatomanganese(V)

1990 ◽  
Vol 45 (4) ◽  
pp. 483-489 ◽  
Author(s):  
Horst Grunewald ◽  
Heiner Homborg
Keyword(s):  
Electron Transfer ◽  
Raman Spectra ◽  
Electronic Transition ◽  
Resonance Raman ◽  
Cation Radical ◽  
Strong Resonance ◽  
Resonance Enhancement ◽  
Resonance Raman Spectra

Nitridophthalocyaninatomanganese(V), MnNPc(2–), has been prepared by oxidation of [Mn(OH)2,Pc(2–)]- with chlorine in the presence of excess ammonia in dichloromethane as a chemically very stable, diamagnetic microcrystalline blue powder. The band at 1053 cm-1 in the infrared and resonance Raman spectra is assigned to v(Mn=N). The strong resonance enhancement of v(Mn=N) coincides with an electronic transition at 461 nm assigned to (N → Mn) electron transfer. The UV-VIS spectrum in 1-chloronaphthalene is compared with that of the MnNPc(2–)–H2SO4 adduct and the phthalocyanine-π-cation radical [MnNPc(1–)]+.

Low-Temperature Optical and Resonance Raman Spectra of a Carotenoid Cation Radical in Photosystem II

1999 ◽  
Vol 103 (31) ◽  
pp. 6403-6406 ◽  
Author(s):  
John S. Vrettos ◽  
David H. Stewart ◽  
Julio C. de Paula ◽  
Gary W. Brudvig
Keyword(s):  
Low Temperature ◽  
Photosystem Ii ◽  
Raman Spectra ◽  
Resonance Raman ◽  
Cation Radical ◽  
Resonance Raman Spectra
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