Characterization of Monomeric and Polymeric (Octacyanophthalocyaninato)metals in Thin Films
作者:Hisao Yanagi、Yasukiyo Ueda、Michio Ashida
DOI:10.1246/bcsj.61.2313
日期:1988.7
Thin films were prepared by the reaction of 1,2,4,5-tetracyanobenzene with Ni, Co, Fe, Zn films at various temperatures. The films were characterized by infrared, UV/visible and photoelectron spectroscopy and analytical electron microscopy in comparison with films prepared on substrates of a KCl single crystal and a Cu film. The films produced on the metal films below 400 °C were composed of tentacle-like crystals growing from the surface and an amorphous layer condensed over the metal substrate. The tentacle-like crystals were soluble in concentrated sulfuric acid and were identified as intercalation compounds of (octacyanophthalocyaninato)metal with the respective metal atoms. The amorphous layers contained polymerization products with a polynitrile structure, which were insoluble in concentrated sulfuric acid. The films produced on the metal films at 450 °C were composed of a thick layer and had a very limited solubility in concentrated sulfuric acid. They were ascribed to metal complexes of polyphthalocyanines(poly-M(Pc)) and cross-linked polymers with structure elements such as polynitrile and triazine.
薄膜是通过 1,2,4,5-四氰基苯与镍、钴、铁、锌薄膜在不同温度下反应制备的。通过红外光谱、紫外/可见光谱、光电子能谱和分析电子显微镜对薄膜进行了表征,并与在氯化钾单晶和铜膜基底上制备的薄膜进行了比较。在低于 400 °C 的温度下,在金属薄膜上制备的薄膜由从表面生长出来的触手状晶体和凝结在金属基底上的无定形层组成。触手状晶体可溶于浓硫酸,经鉴定为 (八氰基酞菁)金属与相应金属原子的插层化合物。无定形层含有聚腈结构的聚合产物,不溶于浓硫酸。450 °C 时在金属膜上生成的薄膜由厚层组成,在浓硫酸中的溶解度非常有限。它们被认为是聚酞菁(poly-M(Pc))的金属络合物以及具有聚腈和三嗪等结构元素的交联聚合物。