Calculation of nuclear magnetic resonance order parameters in proteins by normal mode analysis. II. Contribution from localized high frequency motions

1996 ◽  
Vol 105 (15) ◽  
pp. 6560-6564 ◽  
Author(s):  
Shinji Sunada ◽  
Nobuhiro Go
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Normal Mode ◽  
High Frequency ◽  
Normal Mode Analysis ◽  
Order Parameters ◽  
Mode Analysis ◽  
Nuclear Magnetic

Carbonyl halides of the Group VI transition metals. XXVII. Carbon-13 N.M.R. studies on molybdenum compounds

1982 ◽  
Vol 35 (5) ◽  
pp. 895 ◽  
Author(s):  
R Colton ◽  
J Kevekordes
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Transition Metals ◽  
Carbonyl Group ◽  
High Frequency ◽  
Circumstantial Evidence ◽  
Large Shift ◽  
Group Vi ◽  
Magnetic Resonance Studies ◽  
Nuclear Magnetic

Carbon-13 nuclear magnetic resonance studies have been carried out on a number of molybdenum(II) carbonyl halide species. It has been found that for these seven-coordinate capped octahedral complexes there is a very large shift to high frequency for a carbonyl group in the capping position. Thus carbon-13 n.m.r. provides a useful tool to distinguish between possible isomers. Trends in stability and isomer formation previously suspected from circumstantial evidence can now be rationalized.

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