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Ruthenium NMR

PHYSICAL PROPERTIES
 

Isotope
Natural 
Abundance
(%)
Nuclear
Spin
(I)
Magnetogyric
ratio
(107*rad/T*s)
Quadruple 
moment
(1028*Q/m2)
Resonance
frequency
(MHz)
at 11.744T
(500 MHz for 1H)
Relative 
sensitivity
(1H=1.00)
Absolute 
sensitivity
(1H=1.00)
99Ru
12.76
3/2
-1.229
7.9*10-2
16.949
1.95*10-4
2.48*10-5
101Ru
17.06
5/2
-1.377
0.457
24.707
1.41*10-3
2.4*10-4
 

APPLICATION FIELDS

 99Ru NMR spectroscopy is preferred due to the lowest quadrupole moment. It is applied on inorganic and organometallic ruthenium-containing compounds.
NMR REFERENCES
A common reference standard is 0.3M K4Ru(CN)6 in D2O at room temperature (absolute frequency of 4.605151 (99Ru) and 5.161369 (101Ru) MHz with respect to 100.00 MHz of TMS). Also see IUPAC recommendations for reporting the NMR chemical shits of all nuclei relative to the 1H resonance of TMS (02JMR323-156).
NMR PARAMETERS
 Some interesting features of the Ru nucleus are:
NMR EXPERIMENTS
 1D 99Ru spectrum.

The low frequency of 99Ru nucleus can result in acoustic ringing that causes distorted baselines.

BIBLIOGRAPHY
  Interesting review: B91PRE102
Application on organometallic and coordination complexes of Ru(II) ( 99ORG5238 ).
99Ru NMR in homo- and heteronuclear clusters ( B96GIE313).