Weber, L.; Meine, G.; Boese, R.; Bungardt, D.:

On the reactivity of disilylarsenidoiron complexes towards carbonyl chlorides: the first arsaalkenyl- and diacylarsenido complexes. X-ray structure analysis of Z-[(h5-C5H5)(CO)2FeAs=C(OSiMe3)(tert-Bu).

In: Zeitschrift fuer Anorganische und Allgemeine Chemie, Jg. 549 (1987), S. 73-86
ISSN: 0044-2313
Zeitschriftenaufsatz / Fach: Chemie
The reaction of equimolar amts. of (h5-C5H5)(OC)2FeAs(SiMe3)2 (I) with RCOCl (R = Me3C, 2,4,6-Me3C6H2, 2,4,6-Me3CC6H2) yields the arsaalkenyl complexes Z-[h5-C5H5)(OC)2FeAs:C(OSiMe3)R (II). The diacylarsenido complexes (h5-C5H5)(OC)2FeAs[C(O)R]2 are generated by treatment of I with two equiv of pivaloyl chloride or mesitoyl chloride. The As:C double bond length of 1.821(2) .ANG. in II (R = CMe3) was detd. by single crystal x-ray anal.