无金属酞菁中杂质硫的化学价态周淑琴金祥凤刘世宏（中国科学院化学研究所北京１０００８０）作为有机光导材料的酞菁化合物在静电复印特别是激光印刷机中是重要的载流子产生材料之一［１，２］，在研究酞菁双层感光膜［３］和杂质分析［４］中，发现无金属酞菁中微量杂质... Chemical valence of impurity sulfur in metal-free phthalocyanine Zhou Shuqin Jin Xiangfeng Liu Shihong (Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080) Phthalocyanine compounds as organic photoconducting materials are important carrier-generating materials in xerography, especially in laser printers A [1,2], in the study of phthalocyanine double-layer photosensitive film [3] and impurity analysis [4], found that metal-free phthalocyanine trace impurities ...