HONC


 
 


Nitrogen and Deuterium


Nuclear Quadrupole Coupling Constants

in Isofulminic Acid


 







 
 
Calculation of the N and D nqcc tensors was made here on an ab initio re molecular structure derived by Mladenović et al. [1].  These calculated nqcc's are compared with the experimental values [1] in Tables 1 - 3.  Structure parameters are given in Table 4, rotational constants in Table 5.
 
In Tables 1 - 3, subscripts a,b,c refer to principal axes of the inertia tensor; x,y,z to principal axes of the nqcc tensor.  Ø (degrees) is the angle between its subscripted parameters.  ETA = (Xxx - Xyy)/Xzz.
 
 
   






Table 1.  14N nqcc's in HONC (MHz).  
   








Calc.
Expt. [1]
   





14N Xaa 3.286 3.267(4)
Xbb - 1.899
Xcc - 1.387
|Xab| 0.505
 
Xxx - 1.948
Xyy - 1.387
Xzz 3.335
ETA - 0.168
Øz,a 5.51
Øa,NC 2.56
Øz,NC 8.07
 
 
  
   






Table 2.  14N nqcc's in DONC, H18ONC, and HON13C (MHz).  
   






DONC

Calc.
Expt. [1]
   





14N Xaa 3.257 3.238(5)
Xbb - 1.870
Xcc - 1.387
|Xab| 0.637
 
H18ONC
 
14N Xaa 3.290 3.271(4)
Xbb - 1.903
Xcc - 1.387
|Xab| 0.487
 
HON13C
 
14N Xaa 3.286 3.268(4)
Xbb - 1.899
Xcc - 1.387
|Xab| 0.507
 
 
 
   






Table 3.  D nqcc's in DONC (kHz).  
   








Calc.
Expt. [1]
   





2H Xaa - 53.0 - 63(8)
Xbb 218.9
Xcc - 165.9
|Xab| 135.4
 
Xxx - 108.9
Xyy - 165.9
Xzz 274.8
ETA 0.207
Øz,a 112.44
Øa,OD 111.27
Øz,OD     1.18
 
 
 
 
 
Table 4.  HONC.  Molecular structure parameters, re [1] (Å and degrees).  H and C are trans.
OH 0.9650
NO 1.3293
NC 1.1733
HOC 104.92
OCN 172.56


 
 
Table 5.  HONC.  Rotational Constants (MHz).  Normal Species.  
 
    Calc.    Expt. [1]
A 622405.2
B   11107.2   10953.3904(4)
C   10912.5
 
 

[1] M.Mladenović, M.Lewerenz, M.C.McCarthy, and P.Thaddeus, J.Chem.Phys. 131,174308(2009).

 

 







HSCN HNCO HC(=O)OH HOCN
 

 








Table of Contents




Molecules/Nitrogen



Molecules/Deuterium
 

 













HONC.html






Last Modified 24 Aug 2010