Syntheses of Heterotetranuclear Metallacarboranes Containing a Planar M2Cu2 (M=Mo; W) Rhomb and B-H-Cu Bridges: Structure of (Mo2Cu2(mu-CO)4(CO)2(mu-H)2C2B9H10)2)2-.
Abstract
The extended use of the versatile electron donor ability of (nido-7,8-carborane ion in synthetic cluster chemistry has been exploited to provide a new synthetic route to clustered metallacarboranes with the highest known nuclearity. An equimolar reaction system of (Tl)(closo-3,1,2-Thallacaroborane, PPN+Cl(-), (M(CO)3(CH3CN)3, and Copper chloride in Acetonitrile, afforded (M2Cu2(Mu-CO)4(CO)2(MU-H(2-) (C2B9(H10)2(M = Mo, 1;W,2). The spectroscopic data as well as elemental analyses for 1 and 2 indicates that 1 and 2 have the same configurational core. The structure of 1 determined by an X-ray diffraction study contains a planar MoCU2Mo rhomb with very short Cu-CU separation (2.402(1) A). Each copper atom is also associated with a bridging hydride to B and two semibridging CO groups to Mo. Assembly of 1 and 2 proceeds via a mononuclear Group VIa metallacarborane, (closo-3,3,3-(CO)3-3Tl-3,1,2-MC2B9H11)(-1).
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1987
- Accession Number
- ADA177181
Entities
People
- Carolyn B. Knobler
- M. F. Hawthorne
- Youngkyu Do
Organizations
- NYU Langone Health