Internally doped high chloride {100} tabular grain emulsions

A photographic silver halide emulsion comprised of a silver halide tabular grain population

• (a) bounded by {100} major faces having adjacent edge ratios of less than 10,
• (b) containing at least 50 mole percent chloride, based on total silver forming the grain population,
• (c) accounting for greater than 50 percent of total grain projected area,
• (d) having a thickness of less than 0.3 .mu.m,
• (e) having an average aspect ratio of at least 2, and
• (f) exhibiting a face centered cubic crystal lattice structure containing a hexacoordination complex of a metal chosen from metals occupying periods 4, 5 and 6 in groups 3 to 14 inclusive of the periodic table of elements in which one or more organic ligands each containing at least one carbon-to-carbon bond, hydrogen-to-carbon bond or carbon-to-nitrogen-to-hydrogen bonding system occupy up to half the metal coordination sites in the coordination complex and at least half of the metal coordination sites in the coordination complex are provided by halogen or pseudohalogen ligands.