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All results from a given calculation for C4H4N2 (Succinonitrile)

using model chemistry: HF/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at HF/6-311G**
 hartrees
Energy at 0K-262.752059
Energy at 298.15K-262.756283
Nuclear repulsion energy180.403984
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at HF/6-311G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3218 2924 0.00      
2 Ag 2603 2365 0.00      
3 Ag 1597 1451 0.00      
4 Ag 1525 1385 0.00      
5 Ag 1104 1003 0.00      
6 Ag 1032 938 0.00      
7 Ag 561 510 0.00      
8 Ag 250 227 0.00      
9 Au 3277 2977 3.34      
10 Au 1317 1197 0.03      
11 Au 832 756 2.58      
12 Au 451 409 0.63      
13 Au 86 78 24.65      
14 Bg 3257 2959 0.00      
15 Bg 1428 1297 0.00      
16 Bg 1138 1034 0.00      
17 Bg 410 373 0.00      
18 Bu 3225 2930 5.51      
19 Bu 2604 2366 18.62      
20 Bu 1604 1458 13.79      
21 Bu 1408 1279 3.79      
22 Bu 974 885 18.41      
23 Bu 587 533 0.23      
24 Bu 145 132 26.83      

Unscaled Zero Point Vibrational Energy (zpe) 17316.7 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 15732.2 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at HF/6-311G**
ABC
0.86685 0.04998 0.04809

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311G**

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.426 0.640 0.000
C2 -0.426 -0.640 0.000
C3 -0.426 1.836 0.000
C4 0.426 -1.836 0.000
N5 1.093 -2.747 0.000
N6 -1.093 2.747 0.000
H7 1.063 0.672 0.875
H8 1.063 0.672 -0.875
H9 -1.063 -0.672 0.875
H10 -1.063 -0.672 -0.875

Atom - Atom Distances (Å)
  C1 C2 C3 C4 N5 N6 H7 H8 H9 H10
C11.53741.46842.47603.45152.59711.08281.08282.16892.1689
C21.53742.47601.46842.59713.45152.16892.16891.08281.0828
C31.46842.47603.76974.82781.12872.08282.08282.73172.7317
C42.47601.46843.76971.12874.82782.73172.73172.08282.0828
N53.45152.59714.82781.12875.91203.52883.52883.11753.1175
N62.59713.45151.12874.82785.91203.11753.11753.52883.5288
H71.08282.16892.08282.73173.52883.11751.74962.51573.0643
H81.08282.16892.08282.73173.52883.11751.74963.06432.5157
H92.16891.08282.73172.08283.11753.52882.51573.06431.7496
H102.16891.08282.73172.08283.11753.52883.06432.51571.7496

picture of Succinonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 110.901 C1 C2 H9 110.536
C1 C2 H10 110.536 C1 C3 N6 179.222
C2 C1 C3 110.901 C2 C1 H7 110.536
C2 C1 H8 110.536 C2 C4 N5 179.222
C3 C1 H7 108.501 C3 C1 H8 108.501
C4 C2 H9 108.501 C4 C2 H10 108.501
H7 C1 H8 107.772 H9 C2 H10 107.772
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.113      
2 C -0.113      
3 C 0.086      
4 C 0.086      
5 N -0.316      
6 N -0.316      
7 H 0.172      
8 H 0.172      
9 H 0.172      
10 H 0.172      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.805 12.062 0.000
y 12.062 -57.524 0.000
z 0.000 0.000 -33.174
Traceless
 xyz
x 7.544 12.062 0.000
y 12.062 -22.035 0.000
z 0.000 0.000 14.490
Polar
3z2-r228.980
x2-y219.719
xy12.062
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.297 -2.040 0.000
y -2.040 8.778 0.000
z 0.000 0.000 4.735


<r2> (average value of r2) Å2
<r2> 208.197
(<r2>)1/2 14.429