作者:John J. Burke、Paul C. Lauterbur
DOI:10.1021/ja01463a016
日期:1961.1
all of the twelve possible mixed tin (IV) halides, including the previously unreported SnBrI4, SnBr2I2, and SnBr3I, and SnCIBrI2, SnCIBr2I, and SnCl2-B rI, were found to present in the concentrations expected for random halogen exchange. The average lifetimes of the halide molecules in the mixtures were found to be between 10-2 and 10 seconds. Solvent effects upon the Sn119 chemical shifts of various
获得了许多有机和无机锡化合物的 Sn119 光谱。发现超过 1800 ppm 的化学位移,并观察到与烷基中的质子的间接自旋-自旋偶联约为 50 至 100 cps。检查了 SnCl4、SnBr4 和 SnI4 混合物的光谱,所有 12 种可能的混合锡 (IV) 卤化物,包括以前未报告的 SnBrI4、SnBr2I2 和 SnBr3I,以及 SnCIBrI2、SnCIBr2I 和 SnCl2-B rI,都是发现以随机卤素交换预期的浓度存在。发现混合物中卤化物分子的平均寿命在 10-2 到 10 秒之间。