Effect of ligand variation on the site of protonation in the metal carbynes CpL2MoCBu and TpL2MoCBu [L = CO, P(OR)3]

被引：11

作者：

Torraca, KE ^{[1
]}

Ghiviriga, I ^{[1
]}

McElwee-White, L ^{[1
]}

机构：

[1] Univ Florida, Dept Chem, Gainesville, FL 32611 USA

来源：

ORGANOMETALLICS | 1999年 / 18卷 / 11期

关键词：

D O I：

10.1021/om990047x

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The site of thermodynamic protonation of the Fischer carbynes CpL2Mo=CBu and TpL(2)Mo=CBu [L = CO, P(OR)(3)] with HBF4 depends on the number of pi-acid CO ligands. As the number of carbonyls increases from zero to two and the electron density at the metal center is decreased by back-bonding, the protonation site shifts from the metal to the carbyne carbon. Parallel behavior in the Tp and Cp series of complexes allows the change in protonation site to be attributed to electronic effects in the ancillary ligands.

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页码：2262 / 2266

页数：5

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