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All results from a given calculation for C4H4N2 (Succinonitrile)

using model chemistry: B1B95/CEP-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B1B95/CEP-31G*
 hartrees
Energy at 0K-44.708526
Energy at 298.15K-44.712300
Nuclear repulsion energy90.624774
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 B1B95/CEP-31G*
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 3112 2979 0.00      
2 Ag 2375 2274 0.00      
3 Ag 1463 1401 0.00      
4 Ag 1382 1323 0.00      
5 Ag 1053 1008 0.00      
6 Ag 971 929 0.00      
7 Ag 509 487 0.00      
8 Ag 217 207 0.00      
9 Au 3182 3046 3.72      
10 Au 1196 1144 0.03      
11 Au 750 718 5.12      
12 Au 393 376 0.30      
13 Au 75 72 20.98      
14 Bg 3163 3028 0.00      
15 Bg 1302 1247 0.00      
16 Bg 993 951 0.00      
17 Bg 352 337 0.00      
18 Bu 3119 2985 4.82      
19 Bu 2377 2275 21.72      
20 Bu 1472 1409 18.50      
21 Bu 1271 1217 1.20      
22 Bu 948 907 4.86      
23 Bu 514 492 3.10      
24 Bu 126 121 20.67      

Unscaled Zero Point Vibrational Energy (zpe) 16156.9 cm-1
Scaled (by 0.9572) Zero Point Vibrational Energy (zpe) 15465.4 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 B1B95/CEP-31G*
ABC
0.83902 0.04830 0.04648

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/CEP-31G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.431 0.646 0.000
C2 -0.431 -0.646 0.000
C3 -0.431 1.850 0.000
C4 0.431 -1.850 0.000
N5 1.130 -2.798 0.000
N6 -1.130 2.798 0.000
H7 1.079 0.676 0.888
H8 1.079 0.676 -0.888
H9 -1.079 -0.676 0.888
H10 -1.079 -0.676 -0.888

Atom - Atom Distances (Å)
  C1 C2 C3 C4 N5 N6 H7 H8 H9 H10
C11.55221.48102.49613.51442.65921.09981.09982.19402.1940
C21.55222.49611.48102.65923.51442.19402.19401.09981.0998
C31.48102.49613.79984.90391.17822.10852.10852.75542.7554
C42.49611.48103.79981.17824.90392.75542.75542.10852.1085
N53.51442.65924.90391.17826.03613.58653.58653.18953.1895
N62.65923.51441.17824.90396.03613.18953.18953.58653.5865
H71.09982.19402.10852.75543.58653.18951.77622.54613.1044
H81.09982.19402.10852.75543.58653.18951.77623.10442.5461
H92.19401.09982.75542.10853.18953.58652.54613.10441.7762
H102.19401.09982.75542.10853.18953.58653.10442.54611.7762

picture of Succinonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 110.733 C1 C2 H9 110.486
C1 C2 H10 110.486 C1 C3 N6 179.127
C2 C1 C3 110.733 C2 C1 H7 110.486
C2 C1 H8 110.486 C2 C4 N5 179.127
C3 C1 H7 108.672 C3 C1 H8 108.672
C4 C2 H9 108.672 C4 C2 H10 108.672
H7 C1 H8 107.708 H9 C2 H10 107.708
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.220      
2 C -0.220      
3 C -0.574      
4 C -0.574      
5 N 0.406      
6 N 0.406      
7 H 0.194      
8 H 0.194      
9 H 0.194      
10 H 0.194      


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 -36.780 11.489 0.000
y 11.489 -55.654 0.000
z 0.000 0.000 -32.326
Traceless
 xyz
x 7.210 11.489 0.000
y 11.489 -21.101 0.000
z 0.000 0.000 13.891
Polar
3z2-r227.782
x2-y218.874
xy11.489
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.624 -2.348 0.000
y -2.348 9.622 0.000
z 0.000 0.000 4.759


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000