Gas sensors and compounds suitable therefor
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United States of America Patent
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Mar 31, 1998
Grant Date -
N/A
app pub date -
Jan 6, 1995
filing date -
Nov 8, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A gas sensor has a gas sensing component which permits measurement of a change in optical absorption and, optionally also a change in electrical conductivity on exposure to an environment containing certain gases. The gas sensing component comprises a metal bis aromatic macrocycle which may be a new mixed rare earth metal bis tetrabenzoporphyrin or tetrabenzoazaporphyrin.
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