Photosensitive intramolecular electron transfer compounds
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United States of America Patent
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Dec 7, 1999
Grant Date -
N/A
app pub date -
Aug 19, 1996
filing date -
Oct 31, 1995
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Abstract
A compound of the general formula: A-L.sup.+ D.sup.- where A is a moiety which absorbs radiation and enters an excited state in which it accepts an electron; D.sup.- is a moiety which donates an electron to the excited state A and releases a free radical; and L.sup.+ is a cationic linking group which tethers electron acceptor moiety A to electron donor moiety D.sup.-. Cationic linking moiety L.sup.+ has the formula: -L'-G- where L' is a moiety which forms a stable radical with acceptor moiety A upon transfer of an electron from donor moiety D.sup.- to electron acceptor moiety A, and G is a moiety which forms a leaving group upon transfer of the electron from donor moiety D.sup.- to acceptor moiety A.
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