Novel chemical compounds

Details Novel chemical compounds Novel chemical compounds

1972-11-30

1977-06-07

Jaisle, Cecilia M. S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2602404, 26024065, 2602407, C07D40306

Patent

active

040283534

ABSTRACT:
The present invention relates to photography and, more particularly, to a novel spectrally (optically) sensitized radiation recording photographic element which comprises a cyanine dye of the formula: ##STR1## wherein L represents a methine group; m represents a positive integer of from 1 to 3, inclusive; Z and Z.sub.1 each represents the nonmetallic atoms necessary to complete a cyanine dye heterocyclic ring system containing a 5 or 6 membered heterocyclic nucleus; R and R.sub.1 each represents a divalent acyclic or cyclic group; X.sup.+ represents a quaternary ammonium, sulfonium or phosphonium group; Y.sup.- represents a --SO.sub.3.sup.- or --COO.sup.- group; and W.sup.- represents an anion.

REFERENCES:
patent: 2231658 (1941-02-01), Brooker et al.
patent: 2256163 (1941-09-01), Kumetat et al.
patent: 2503776 (1950-04-01), Sprague
Hamer, The Cyanine Dyes & Related Compounds, (Interscience, N.Y., 1964), pp. 297-300.
Venkataraman, The Chemistry of Synthetic Dyes, (American Press, N.Y., 1971), pp. 249-252.

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