Novel methyne dyes comprising two auxochromic groups of the type used in a cyanine or merocyanine dye linked by a carbon atom chain wherein each of the carbon atoms have an unsaturated linkage to at least one adjacent carbon atom in the chain and at least one pair of carbon atoms in the chain being joined by a triple bond or, in an alternate resonance form, the chain including three consecutive carbon to carbon double bonds. The dyes are useful as spectral sensitizing dyes for silver halide emulsions and as intermediates for synthesizing chain-substituted methine dyes.
这段话的意思是:新型甲基
染料包括两个辅助色团,这些色团与青菜素或Merocyanine
染料中使用的相同类型的色团相连,由碳原子链连接,其中链中每个碳原子都与链中至少一个相邻的碳原子具有不饱和键合,并且链中至少有一对碳原子通过三重键连接,或者在另一种共振形式中,该链包括三个连续的碳到碳双键。这些
染料可用作
银卤化物乳剂的光谱敏化
染料,并用作合成链取代甲基
染料的中间体。