Synthesis of novel near-infrared absorbing metal complex dyes with indoaniline-type ligands
- 1 January 1989
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Perkin Transactions 1
- No. 8,p. 1469-1472
- https://doi.org/10.1039/p19890001469
Abstract
New metal complex dyes with N,O-bidentate indoaniline-type ligands, 5-(4′-dialkylaminophenylimino)quinolin-8-ones (3), have been prepared, which have intense absorption bands in the near-i.r. region and were isolated as stable compounds. A film of complex dye which was prepared from 5-(4′-diethylamino-2′-methylphenylimino)quinolin-8-one and Ni(BF4)2aq showed a λmax value of 772 nm and reflected 54.3% of the incident light intensity at 830 nm; these metal complex dyes have potential as a diode-laser optical storage medium.Keywords
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