Autocatalyzed self-aggregation of ([3]1R)-[Et, Et] bacteriochlorophyll Cf molecules in nonpolar solvents. Analysis of the kinetics

Article Abstract:

Details of a kinetic investigation of the main bacteriochlorophyll, ([3]R)-[Et,Et]-BChl Cf, contained in the light-harvesting antennae of Chlorbium tepidum are presented.

Bacteria, Photosynthetic, Photosynthetic bacteria

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Diastereoselective control of bacteriochlorophyll e aggregation. 3'-S-BChI e is essential for the formation of chlorosome-like aggregates

Article Abstract:

Supramolecular bacteriochlorophyll (BChI) e aggregates in four different solvent systems are investigated. Two different aggregate structures of HPLC-purified BChI e species, 3(super 1)-R-8-ethyl-12-ehtyl BChI e, 3(super 1)-R-8- propyl-12 ethyl BChI e, 3(super 1)-S-8-propyl-12-ethyl BChI e, and 3(super 1)-S-8-isobutyl-12-ethyl BChI e, in cyclohexane, n-hexane, H2O/monogalactosyldiglyceride, or H2)/lecithin, are indicated as judged from absorption, circular dichroism, infrared, and resonance Raman spectroscopies.

Propyl groups, Ethyl group

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MAS NMR structures of aggregated cadmium chlorins reveal molecular control of self-assembly of chlorosomal bacteriochlorophylls

Article Abstract:

Magic angle spinning (MAS) nuclear magnetic resonance (NMR) spectroscopy is used to investigate the self-organization of bacteriochlorophylls in chlorosomal light-harvesting antennae. The results reveal a balance between relatively strong local interactions and contributions to the free energy of the system associated with a longer length scale.

All Other Basic Inorganic Chemical Manufacturing, Industrial inorganic chemicals, not elsewhere classified, Cadmium Compounds, Usage, Nuclear magnetic resonance spectroscopy, Magnetic properties

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