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HONC |
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Nitrogen
and Deuterium |
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Nuclear
Quadrupole Coupling Constants |
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in
Isofulminic Acid
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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.
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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. |
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Table 1. 14N nqcc's in HONC (MHz).
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Calc. |
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Expt. [1] |
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14N |
Xaa |
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3.286 |
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3.267(4) |
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Xbb |
- |
1.899 |
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Xcc |
- |
1.387 |
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|Xab| |
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0.505 |
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Xxx |
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1.948 |
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Xyy |
- |
1.387 |
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Xzz |
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3.335 |
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ETA |
- |
0.168 |
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Øz,a |
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5.51 |
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Øa,NC |
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2.56 |
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Øz,NC |
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8.07 |
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Table 2. 14N nqcc's in DONC, H18ONC,
and HON13C (MHz). |
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DONC
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Calc. |
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Expt. [1] |
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14N |
Xaa |
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3.257 |
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3.238(5) |
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Xbb |
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1.870 |
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Xcc |
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1.387 |
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|Xab| |
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0.637 |
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H18ONC |
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14N |
Xaa |
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3.290 |
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3.271(4) |
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Xbb |
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1.903 |
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Xcc |
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1.387 |
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|Xab| |
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0.487 |
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HON13C |
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14N |
Xaa |
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3.286 |
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3.268(4) |
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Xbb |
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1.899 |
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Xcc |
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1.387 |
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|Xab| |
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0.507 |
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Table 3. D nqcc's in DONC
(kHz). |
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Calc. |
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Expt. [1] |
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2H |
Xaa |
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- 53.0 |
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- 63(8) |
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Xbb |
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218.9 |
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Xcc |
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165.9 |
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|Xab| |
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135.4 |
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Xxx |
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108.9 |
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Xyy |
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165.9 |
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Xzz |
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274.8 |
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ETA |
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0.207 |
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Øz,a |
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112.44 |
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Øa,OD |
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111.27 |
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Øz,OD |
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1.18 |
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Table 4. HONC.
Molecular structure parameters, re [1] (Å and
degrees). H and C are trans.
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OH |
0.9650 |
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NO |
1.3293 |
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NC |
1.1733 |
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HOC |
104.92 |
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OCN |
172.56 |
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Table 5. HONC.
Rotational Constants (MHz). Normal Species. |
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Calc. |
Expt. [1] |
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A |
622405.2 |
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B |
11107.2 |
10953.3904(4) |
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C |
10912.5 |
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[1] M.Mladenović, M.Lewerenz,
M.C.McCarthy, and P.Thaddeus, J.Chem.Phys. 131,174308(2009).
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HSCN |
HNCO |
HC(=O)OH |
HOCN
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Table of Contents |
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Molecules/Nitrogen |
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Molecules/Deuterium |
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HONC.html |
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Last
Modified 24 Aug 2010 |
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