【摘要】 <正> 均四嗪衍生物在可见光区的最高吸收波长为500～550nm 之间,且由于其分子跃迁矩垂直于分子长轴,在液晶中显示负二向性,因而更多还原

【Abstract】 Symmetrical and unsymmetrical tetrazines (?)(2)were synthesized from the corresponding nitriles.Some of them have not been reported.These compounds were identified by IR spectra,(13)~C NMR and elemental analysis.更多还原