Abstract
New organobimetallic compounds CatSn[CpM(CO) n ] 2 ( 2– 4) were obtained by the insertion of CatSn(II) ( 1) into the metal–metal bond of [CpM(CO) n ] 2 (Cat – 3,6-di- tert-butylcatecholate dianion; M = Fe ( 2), n = 2; M = Mo ( 3), W ( 4), n = 3). The structure of CatSn[CpMo(CO) 3] 2 was determined by X-ray analysis. The oxidation of compounds 2– 4 with silver(I) triflate was found to produce stable paramagnetic o-semiquinolate derivatives which keep both Sn–M bonds. New paramagnetic tin(IV) complexes were investigated by EPR spectroscopy.
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