CH3NO3
 

 








Nitrogen


Nuclear Quadrupole Coupling Constants


in Methyl Nitrate


 







 
In Table 1, RMS is the root mean square difference between calculated and experimental nqcc's (percentage of average experimental nqcc).  RSD is the residual stand deviation of calibration of the model for calculation of the nqcc's.
 
 
   







Table 1. Nitrogen nqcc's in CH3NO3 (MHz).  Calculation was made on the substitution molecular structure of Cox and Waring [2].
   










Calc.
Expt. [1]
   






14N Xaa 0.322 0.308(16)
Xbb - 0.234 - 0.285(23)
Xcc - 0.088 - 0.023(23)
|Xab| 0.892
 
RMS 0.048 (24 %)
RSD 0.030 (1.3 %)
 
 
 
Table 3. Methyl Nitrate Structure Parameters, rs [2] (Å and degrees).  NO3 structure parameters are compared with those of ClNO3 (ed+mw) and HNO3 (rs/ro).
CH3NO3 ClNO3 HNO3
ON 1.402 1.496 1.406
NOc 1.205 1.194 1.211
NOt 1.208 1.194 1.199
ONOc 118.10 118.6 115.88
ONOt 112.38 132.6 113.85
CO 1.437
CON 112.7
CH' 1.088
CH 1.095
OCH' 103.4
OCH 110.4
 
 
[1] J.Spieckermann and D.H.Sutter, Z.Naturforsch. 44a,1087(1989).
[2] A.P.Cox and S.Waring, Trans. Faraday Soc. 67,3441(1971).

 








 








HNO3 ClNO3
 

 








Table of Contents



Molecules/Nitrogen
 

 













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Last Modified 23 May 2003