ISSN:
1573-5079
Keywords:
aggregation
;
bacteriochlorophyll
;
chlorin complexes
;
dimerization
;
photosynthetic antenna
;
zinc aminochlorin
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract UV-visible spectra of synthetic zinc aminochlorins were measured in 99:1 (v/v) cyclohexane-dichloromethane solution. The compounds formed anti-parallel dimers with mutual coordination of the central zinc in one molecule to the amino nitrogen in the other (Qy band red-shift of about 500 cm−1). Such a dimer arrangement appears to be too stable to form far-red (〉 1500 cm−1) shifted oligomers which have been observed with bacteriochlorophylls-c (possessing a hydroxy group and a central magnesium) and with their model compounds (with a hydroxy group and a central zinc) in non-polar organic solvents.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02184165
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