Photographic element, compound and process

摘要

Disclosed is a photographic element comprising a light-sensitive silver halide emulsion layer having associated therewith a cyan "NB coupler" having the formula (I): <CHEM> wherein : the term "NB coupler" represents a coupler of formula (I) that forms a dye for which the left bandwidth (LBW) using spin-coating is at least 5nm less than that of the same dye in solution form; X is selected from O, NR* or S and R* is an alkyl, carbocyclic or heterocyclic group; L is a linking group and a is 0 or 1; Y is H or a coupling-off group; Z* is a substituent group and p is 0 to 2; and R' and R<2> are independently selected H or substituents; provided that the combined sum of the aliphatic carbon atoms in R<1>, R<2>, R*, L and all Z* is at least 8.