Merocyanine sensitizers for silver halide

Claim 1

A PHOTOGRAPHIC SLVER HALIDE SENSITIZING DYE HAVING THE FORMULA: (-CO-Q-)>C=C(-R7)-(CH=CH)(M-1)-C<(-CH(-R)-(CH(-R))(N-1)CH(-R)-N(-)-Z-W-C=) WHERE N AND THE LAST C ARE JOINED WHEREIN W REPRESENTS A MEMBER SELECTED FROM THE CLASS CONSISTING OF THE OXYGEN ATOM, THE SULFUR ATOM AND THE SELENIUM ATOM; Z REPRESENTS THE NONMETALLIC ATOMS NECESSARY TO COMPLETE A HETEROCYCLIC NUCLEUS CONTAINING FROM 5 TO 6 ATOMS IN THE HETEROCYCLIC NUCLEUS SELECTED FROM THE CLASS CONSISTING OF A THIAZOLE NUCLEUS, A BENZOTHIAZOLE NUCLEUS, A NAPHTHOTHIAZOLE NUCLEUS, A THIONAPHTHENO7'',6'',4,5-THIAZOLE NUCLEUS, AN OXAZOLE NUCLEUS, A SELENAZOLE ZOLE NUCLEUS; N IS AN INTEGER OF FROM 1 TO 2; M REPRESENTS NUCLEUS, A BENZOSELENAZOLE NUCLEUS, AND A NAPTHTHOSELENAZOLE NUCLEUS; N IS AN INTEGER OF FROM 1 TO 2; M REPRESENTS AN INTEGER OF FROM 1 TO 2; THE R GROUPS REPRESENT ONLY ONE OF THE FOLLOWING: (A) IDENTICAL GROUPS SELECTED FROM THE CLASS CONSISTING OF THE HYDROGEN ATOM, AN ALKYL GROUP HAVING FROM 1 TO 6 CARBON ATOMS, AND A PHENYL GROUPS, AND (B) DIFFERENT RADICALS SELECTED FROM THE CLASS CONSISTING OF THE HYDROGEN ATOM, AN ALKYL GROUP HAVING FROM 1 TO 6 CARBON ATOMS, AND A PHENYL GROUP; R7 REPRESENTS A GROUP SELECTED FROM THE CLASS CONSISTING OF THE HYDROGEN ATOM, AN ALKYL GROUP HAVING FROM 1 TO 2 CARBON ATOMS AND A PHENYL GROUP; AND Q REPRESENTS THE NONMETALLIC ATOMS NECESSARY TO COMPLETE A HETEROCYCLIC NUCLEUS CONTAINING FROM 5 TO 6 ATOMS IN THE HETEROCYCLIC NUCLEUS SELECTED FROM THE CLASS CONSISTING OF A THIAZOLOJE NUCLEUS, A 2-THIO-2,4-THIAZOLIDINEDIONE NUCLEUS, A 2-THIO-2,5-THIAZOLIDINEDIONE NUCLEUS, A 2-ALKYLMERCAPTO-4(5)-THIAZOLONE NUCLEUS, A THIAZOLIDONE NUCLEUS, A 2-DIPHENYLAMINO-4(5)THIAZOLONE NUCLEUS, A 5(4)-THIAZOLONE NUCLEUS, A 2-ALKYLPHENYLAMINO-4(5)-THIOAZOLONE NUCLEUS, A 2-THO-2,4-OXAZOLIDINEDIONE NUCLEUS, A PSEUDOHYDANTOIN NUCLEUS, A 5(4)OXAZOLONE NUCLEUS, A 5(4)-ISOOXAZOLONE NUCLEUS, A HYDIANTOIN NUCLEUS, A 2-THIOHYDANTOIN NUCLEUS, A 2-ALKYLMERCAPTO-5(4)-IMIDAZOLONE NUCLEUS, A THIONAPHTHENONE NUCLEUS, A PYRAZOLONE NUCLEUS, AN OXIDOLE NUCLEUS, AND A 2,4,6-TRIKETOHEXAHYDROPYRIMIDINE NUCLEUS.