scholarly journals Assessment of dermal water by high-frequency ultrasound: comparative studies with nuclear magnetic resonance

1996 ◽  
Vol 135 (2) ◽  
pp. 218-224 ◽  
Author(s):  
M. GNIADECKA ◽  
B. QUISTORFF
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Comparative Studies ◽  
High Frequency ◽  
High Frequency Ultrasound ◽  
Frequency Ultrasound ◽  
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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