Magnetization transfer 13C n.m.r. mesurements have been used to investigate the fluxionality of [Re3(CO)10H3]2– in CD3CN, the lowest energy process being the local scrambling of the carbonyls of the doubly hydride bridged H2Re(CO)3 unit; the next process can be viewed as ‘olefin’ ReH(CO)4, rotation about the ‘acetylene’[(CO)3Re(µ-H)2- Re(CO)3]2–, followed by the single hydride moving to the unbridged edge and finally local carbonyl scrambling on the ReH(CO)4.
The Observation of Four Separate Fluxional Processes in [Re3(CO)10H3]2-, including an Example of the Rotation of a Re=Re Fragment on ReH(CO)4
MOLINARI, Henriette;
1986-01-01
Abstract
Magnetization transfer 13C n.m.r. mesurements have been used to investigate the fluxionality of [Re3(CO)10H3]2– in CD3CN, the lowest energy process being the local scrambling of the carbonyls of the doubly hydride bridged H2Re(CO)3 unit; the next process can be viewed as ‘olefin’ ReH(CO)4, rotation about the ‘acetylene’[(CO)3Re(µ-H)2- Re(CO)3]2–, followed by the single hydride moving to the unbridged edge and finally local carbonyl scrambling on the ReH(CO)4.
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