FLUORESCENT LIQUID CRYSTALLINE CHARGE TRANSFER MATERIALS
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United States of America Patent
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N/A
Issued Date -
Jun 21, 2001
app pub date -
Nov 2, 1998
filing date -
Nov 4, 1997
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention relates to novel charge transfer materials which have both the advantageous properties of amorphous materials such as structural flexibility and uniformity over large areas, and those of crystalline materials such as molecular orientation and which are excellent in charge transferability, thin-film formability, and durability of various types. The liquid crystalline charge transfer materials have the following structure (A) containing a fluorescent skeletal structure Y, and the core Z of a liquid crystal: 1 in which R.sub.1, which may directly be combined with Z without interposing X.sub.1, represents a saturated or unsaturated, and linear, branched or cyclic hydrocarbon group having 1 to 22 carbon atoms; and X.sub.1 and X.sub.2 represent oxygen atom, sulfur atom, or --CO--, --OCO--, --COO--, --N.dbd.CH--, --CONH--, --NH--, --NHCO-- or --CH.sub.2-- group; or 2 in which R.sub.1 and R.sub.2, which may directly be combined with Y without interposing X.sub.1 and X.sub.2, represents a saturated or unsaturated, and linear, branched or cyclic hydrocarbon group having 1 to 22 carbon atoms; and X.sub.1 and X.sub.2 represent oxygen atom, sulfur atom, or --CO--, --OCO--, --COO--, --N.dbd.CH--, --CONH--, --NH--, --NHCO-- or --CH.sub.2-- group.
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