Complete assignment of (super 1)H NMR spectra and structural analysis of intact bacteriochlorophyll c dimer in solution
Article Abstract:
The H NMR spectra of intact farnesyl (3(super 1)R)-bacteriochlorophyll (BChL) c in carbon tetrachloride (CCl4) made by two-dimensional heteronuclear and homonuclear correlation techniques are investigated. It is shown that at room temperature, BChl c in CCl4 forms a stable dimer characterized by two resonances for each individual proton in the NMR spectrum. Molecules in the dimer also undergo slow exchange between two nonequivalent configurations with an exchange rate constant of about 1.8/s.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1999
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NMR relaxation study of the bacteriochlorophyll c in solutions
Article Abstract:
A study is conducted to explore the dynamic properties of bacteriochlorophyll c in terms of relaxation behavior by measuring the NMR spin-lattice relaxation times and spin-spin relaxation times in different organic solvents. The results indicate that BChl c dimer can be used as quantitative measures for evaluating the internal motion of other chlorophyll-related pigment molecules.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2004
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Dynamic exchange properties of the antiparallel bacteriochlorophyll c dimers
Article Abstract:
The substituent effect on the exchange rate of the antiparallel dimer is investigated by the thermodynamic analysis. It is shown that the antiparallel dimer formed from the most abundant homologue can be destabilized kinetically.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2003
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