Ruthenium Hydrides Containing the Superhindered Polydentate Polyphosphine Ligand P(CH2CH2PtBu2)3

详细信息    查看全文

• 作者：Ryan Gilbert-Wilson ; Leslie D. Field ; Mohan Bhadbhade
• 刊名：Inorganic Chemistry
• 出版年：2014
• 出版时间：December 1, 2014
• 年：2014
• 卷：53
• 期：23
• 页码：12469-12479
• 全文大小：570K
• ISSN：1520-510X

文摘

The complex RuH₂(N₂)(P²P₃^tBu) (1) containing the extremely bulky PP₃-type ligand P²P₃^tBu = P(CH₂CH₂P^tBu₂)₃ was synthesized by reduction of RuCl₂(P²P₃^tBu) (2) with Na/NH₃ under a N₂ atmosphere. Like other complexes containing the P²P₃^tBu ligand, only three of the four donor phosphines are coordinated, and one of the phosphines remains as a dangling pendant phosphine. Reduction of RuCl₂(P²P₃^tBu) (2) with a range of the more usual hydride reducing agents afforded the previously unknown ruthenium hydride complexes RuHCl(P²P₃^tBu) (3), RuH(BH₄)(P²P₃^tBu) (6), RuH(AlH₄)(P²P₃^tBu) (7), and the ruthenium(II) trihydride K[Ru(H)₃(P²P₃^tBu)] (8). The ruthenium tetrahydride containing a coordinated H₂ ligand RuH₂(H₂)(P²P₃^tBu) (10) was synthesized by exchange of N₂ in 1 by H₂. Complexes 1, 3, 6, 7, and 8 were characterized by crystallography and multinuclear NMR spectroscopy.