CATIONIC ACTINIDE METALLOCENE ALKYLS AND HYDRIDES - METAL BIS(DICARBOLIDES) AS COUNTERIONS

被引：41

作者：

YANG, XM ^{[1
]}

KING, WA ^{[1
]}

SABAT, M ^{[1
]}

MARKS, TJ ^{[1
]}

机构：

[1] NORTHWESTERN UNIV, DEPT CHEM, EVANSTON, IL 60208 USA

来源：

ORGANOMETALLICS | 1993年 / 12卷 / 10期

关键词：

D O I：

10.1021/om00034a079

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Metal bis(dicarbollides) of the type M(B9-C2H11)2-(M = Co, Fe) have been incorporated into cationic organothorium complexes [Cp'2ThR]+X- (Cp' = eta5-(CH3)5C5; R = alkyl, H) as potential weakly coordinating anions. The reaction of Cp'2Th(CH3)2 with [HNEt3]+[Co(B9C2H11)2]- and [HNEt3]+[Fe(B9C2H11)2]- in hydrocarbon solvents affords [Cp'2ThCH3]+[Co(B9C2H11)2]- (1) and [Cp'2ThCH3]22+[Fe(B9C2H11)2]2- (2), respectively. The structure of 2 reveals tight ion-pairing with three close Th...H-B bridging interactions (2.42(3), 2.50(3), 2.67(4) angstrom). This level of Th coordinative saturation explains the unexpected chemical inertness of 1 and 2. The reaction Of Cp'2Th[CH2Si(CH3)3]2 with [HNEt3]+[Co(B9C2H11)2]-affords [Cp'2ThCH2Si(CH3)3]+[Co(B9C2H11)2]- (3), which slowly undergoes hydrogenolysis to yield [Cp'2ThH]+[Co(B9C2H11)2]- (4).

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页码：4254 / 4258

页数：5

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