only at 520 cm−1 in triethyltin formate. In the spectra of solutions, additional new bands due to the terminal formoxy group appear at near 1660 cm−1, 1245 cm−1 and 430 cm−1. From these facts it is concluded that in the solid state trialkyltin formate is a linear polymer in which the planar SnC3e group is bridged by the -OCO- unit, and that even in solution this structure is partially maintaine.
三乙基-和三- Ñ -propyltin
甲酸被发现存在作为在有机溶剂中的低聚合物。在固态这些化合物的红外光谱,类似于
甲酸阴离子的formoxy组显示带在接近1590厘米-1,1360厘米-1和770厘米-1 ; 此外,在300cm -1附近发现了由于氧原子与
锡原子的弱配位的带。由于SnC拉伸振动而引起的吸收仅在
甲酸三乙基锡中出现在520 cm -1处。在溶液的光谱,附加新的频带由于终端formoxy组出现在接近1660厘米-1,1245厘米-1和430厘米-1。从这些事实可以得出结论,在固态的
甲酸三烷基
锡是一种线性聚合物,其中平面的SnC 3e基团被-OCO-单元桥接,即使在溶液中,该结构也得以部分保持。