Synthesis, structures and speciation studies of ruthenium(<scp>iii</scp>) hydroxamate/hydroximato complexes. Crystal and molecular structure of hydrated [Ru(H<sub>2</sub>edta)(2-methoxyphenylhydroxamate)], the first structurally characterised ruthenium(<scp>iii</scp>)–hydroxamate complex
作者:Jedd Comiskey、Etelka Farkas、Krystyna A. Krot-Lacina、Robin G. Pritchard、Charles A. McAuliffe (the late)、Kevin B. Nolan
DOI:10.1039/b310193m
日期:——
first reported structure of a Ru(III)–hydroxamate, the carboxylato groups of the tetradentate H2edta are trans to each other and the amino nitrogen and hydroxamate oxygen donor atoms are roughly coplanar. Relevant bond lengths (Å) are: Ru–O(carboxylato) 2.016(4) and 2.044(3), Ru–O(hydroxamato O−) 1.964(4), Ru–O (hydroxamato CO) 2.019(4), Ru–N 2.060(4) and 2.156(4). Addition of R-PhaH to an aqueous solution
K [Ru(Hedta)Cl]·1.5H 2 O与各种苯基异羟肟酸R-PhaH在水溶液中反应,得到异羟肟酸酯络合物[Ru(H 2 edta)(R-Pha)]· x H 2 O,已经确定其中之一即水合的[Ru(H 2 edta)(2-OMe-Pha)]的晶体和分子结构,其中2-OMe-Pha = 2-甲氧基苯基异羟肟酸酯。在这个复合物中,Ru(III)–的第一个报告结构异羟肟酸酯中,四齿H的羧酸根基团2 EDTA是反式于彼此和氨基 氮和异羟肟酸酯的氧供体原子大致共面。相关的键长(A)为:钌-O(羧酸根)2.016(4)和2.044(3),RU-O(hydroxamatoø -)1.964(4),RU-O(hydroxamato CO)2.019(4),钌–N 2.060(4)和2.156(4)。在K [Ru(Hedta)Cl]·1.5H 2 O的水溶液中添加R-PhaH导致[Ru(edta)(R-Pha)]