Synthesis and complexation properties of photochromic benzochromenes containing aza-and diaza-18-crown-6-ether fragments
作者:O. A. Fedorova、Yu. P. Strokach、A. V. Chebun’kova、T. M. Valova、S. P. Gromov、M. V. Alfimov、V. Lokshin、A. Samat
DOI:10.1007/s11172-006-0250-y
日期:2006.2
Complex formation of Mg2+, Ba2+, and Pb2+ perchlorates with 3,3-diphenyl-3H-benzo[f]chromenes containing aza-and diaza-18-crown-6-ether or morpholine fragments was studied. The strong influence of the metal cations on the spectral characteristics of these organic ligands and on the kinetic of photochromic transformations was found. The results obtained were explained by the formation of carbonyl-“ capped” complexes of various structures.
研究了 Mg2+、Ba2+ 和 Pb2+ 高氯酸盐与含有偶氮和重氮-18-冠-6-醚或吗啉片段的 3,3-二苯基-3H-苯并[f]色烯形成的络合物。研究发现,金属阳离子对这些有机配体的光谱特性和光致变色转化动力学有很大影响。获得的结果可以通过形成不同结构的羰基 "封端 "配合物来解释。