Probing the photochemical mechanism in photoactive yellow protein
Article Abstract:
Selectively bridged model compounds related to chromophore in photoactive yellow protein (PYP) are synthesized where the single bond adjacent to the benzene ring (bond 1) and where both bond 1 and the adjacent double bond (bond 2) are bridged. The simultaneous photochemical activity of both single and double bonds explains the ease of photochemical isomerization in the confined environment of the natural PYP and also primary step in the vision process in rhodopsin.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2005
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Octopolar chromophores based on donor- and acceptor-substituted 1,3,5-tris(phenylethynyl)benzenes: Impact of meta-conjugation on the molecular and electronic structure by means of spectroscopy and theory
Article Abstract:
A study was conducted to investigate the molecular and electronic structures of a series of all-meta-substituted phenylacetylene mesitylenes peripherally substituted with donor or acceptor (D-A) groups. The orbital structure of the compounds is seen to partially preserve that of the mesitylene group showing extra-conjugation due to the addition of the arms, so that conjugation is not entirely obstructed but partially impeded in the ground electronic state.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2006
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Efficient light harvesting and energy transfer in organic-inorganic hybrid multichromophoric materials
Article Abstract:
Thin films of silica hybrid materials consisting of two to three covalently bound organic chromophores at different ratios were synthesized and fabricated. The fluorescence spectra reveal complete fluorescence resonance energy transfer (FRET) from donor to acceptor, and the light-harvesting ability of these hybrid materials increases with increasing the molar fraction of donor chromophore.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2005
User Contributions:
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