Weber, L.; Mast, C.a.; Scheffer, M.h.; Schumann, H.; Uthmann, S.; Boese, R.; Blaser, D.; Stammler, H.g; Stammler, A.:

Synthesis, structure, and reactivity of functionalized stibanido complexes of iron and ruthenium [(h5-C5Me5)(CO)2MSbR1R2] [M = Fe, Ru; R1, R2 = SiMe3, C(O)tBu, C(O)Ph, C(O)-1-Ad].

In: Zeitschrift fuer Anorganische und Allgemeine Chemie, Jg. 626 (2000) ; Nr. 2, S. 421-429
ISSN: 0044-2313
Zeitschriftenaufsatz / Fach: Chemie
The reaction of equimolar amts. of [(h5-C5Me5)(CO)2RuSb(SiMe3)2] (1b) and appropriate RCOCl afforded the acyl(trimethylsilyl)stibanido complexes [(h5-C5Me5)(CO)2RuSb{C(O)R}(SiMe3)] [R = tBu (2b), Ph, 1-adamantyl]. Treatment of 1b with 2 equiv RCOCl led to the diacyl stibanido complexes [(h5-C5Me5)(CO)2RuSb{C(O)R}2] [R = tBu, Ph (5b)]. Analogously, the Fe complex [(h5-C5Me5)(CO)2FeSb(SiMe3)2] (1a) is converted into the corresponding diacyl stibanido complexes (R = tBu, Ph, 1-Ad) by an excess of acid chloride. Treatment of 1a with equimolar amts. of RCOCl gave inseparable mixts. of starting material and the monoacyl- and diacyl stibanido complexes. Oxalyl chloride reacted quant. with 2 equiv 1a to give [{(h5-C5Me5)(CO)2FeSb(SiMe3)C(O)}2]. The mol. structures of 1a, 2b and 5b were elucidated by single crystal x-ray anal.