The preparation, variable-temperature nuclear magnetic resonance spectra, and behaviour under reflux conditions of [Os3(CO)10(µ-ER)2](E = S, R = Me, Ph, or CH2Ph; E = Se, R = Ph)

1982 ◽  
pp. 1881-1884 ◽  
Author(s):  
Peter V. Broadhurst ◽  
Brian F. G. Johnson ◽  
Jack Lewis
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Variable Temperature ◽  
Nuclear Magnetic Resonance Spectra ◽  
Preparation Variable ◽  
Magnetic Resonance Spectra ◽  
Nuclear Magnetic

Evidence for Restricted Rotation in the 1H and 19F Nuclear Magnetic Resonance Spectra of Cyclopentadienylperfluoroalkyliron and Nickel Complexes

1974 ◽  
Vol 52 (9) ◽  
pp. 1781-1786 ◽  
Author(s):  
K. Stanley ◽  
R. A. Zelonka ◽  
J. Thomson ◽  
P. Fiess ◽  
M. C. Baird
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Variable Temperature ◽  
Nickel Complexes ◽  
Iron Complexes ◽  
Restricted Rotation ◽  
Nuclear Magnetic Resonance Spectra ◽  
New Compounds ◽  
Magnetic Resonance Spectra ◽  
Nuclear Magnetic

Several series of compounds CpFeCOLRF, CpNiPPh3RF, and mer-Fe(CO)3LRFI (RF = CF3, CF2CF3, CF(CF3)2; L = PPh3, PMePh2, PMe2Ph), some of them new compounds, have been prepared and characterized. Evidence for restricted rotation about both metal–alkyl and phosphorus–aryl bonds is deduced from the variable temperature 1H and 19F n. m. r. spectra of the complexes. The presence of two vCO in the i. r. spectra of the pseudotetrahedral iron complexes suggests that these compounds exist as diastereomers, the coordinated phosphine and the nickel constituting chiral centers.

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