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Title: Photo-induced electron transfer method

Abstract

The efficiency of photo-induced electron transfer reactions is increased and the back transfer of electrons in such reactions is greatly reduced when a photo-sensitizer zinc porphyrin-surfactant and an electron donor manganese porphyrin-surfactant are admixed into phospho-lipid membranes. The phospholipids comprising said membranes are selected from phospholipids whose head portions are negatively charged. Said membranes are contacted with an aqueous medium in which an essentially neutral viologen electron acceptor is admixed. Catalysts capable of transfering electrons from reduced viologen electron acceptor to hydrogen to produce elemental hydrogen are also included in the aqueous medium. An oxidizable olefin is also admixed in the phospholipid for the purpose of combining with oxygen that coordinates with oxidized electron donor manganese porphyrin-surfactant.

Inventors:
 [1];  [2]
  1. (2823 Hillegass Ave., Berkeley, CA 94705)
  2. (2683 Buena Vista Way, Berkeley, CA 94708)
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
864848
Patent Number(s):
4427511
Assignee:
Wohlgemuth, Roland (2823 Hillegass Ave., Berkeley, CA 94705);Calvin, Melvin (2683 Buena Vista Way, Berkeley, CA 94708) LLNL
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
photo-induced; electron; transfer; method; efficiency; reactions; increased; electrons; greatly; reduced; photo-sensitizer; zinc; porphyrin-surfactant; donor; manganese; admixed; phospho-lipid; membranes; phospholipids; comprising; selected; head; portions; negatively; charged; contacted; aqueous; medium; essentially; neutral; viologen; acceptor; catalysts; capable; transfering; hydrogen; produce; elemental; included; oxidizable; olefin; phospholipid; purpose; combining; oxygen; coordinates; oxidized; negatively charged; aqueous medium; electron transfer; electron donor; greatly reduced; electron acceptor; produce elemental; greatly reduce; lipid membranes; transfer reactions; transfer method; transfer reaction; photo-induced electron; /204/252/

Citation Formats

Wohlgemuth, Roland, and Calvin, Melvin. Photo-induced electron transfer method. United States: N. p., 1984. Web.
Wohlgemuth, Roland, & Calvin, Melvin. Photo-induced electron transfer method. United States.
Wohlgemuth, Roland, and Calvin, Melvin. Sun . "Photo-induced electron transfer method". United States. https://www.osti.gov/servlets/purl/864848.
@article{osti_864848,
title = {Photo-induced electron transfer method},
author = {Wohlgemuth, Roland and Calvin, Melvin},
abstractNote = {The efficiency of photo-induced electron transfer reactions is increased and the back transfer of electrons in such reactions is greatly reduced when a photo-sensitizer zinc porphyrin-surfactant and an electron donor manganese porphyrin-surfactant are admixed into phospho-lipid membranes. The phospholipids comprising said membranes are selected from phospholipids whose head portions are negatively charged. Said membranes are contacted with an aqueous medium in which an essentially neutral viologen electron acceptor is admixed. Catalysts capable of transfering electrons from reduced viologen electron acceptor to hydrogen to produce elemental hydrogen are also included in the aqueous medium. An oxidizable olefin is also admixed in the phospholipid for the purpose of combining with oxygen that coordinates with oxidized electron donor manganese porphyrin-surfactant.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1984},
month = {1}
}

Patent:

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