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All results from a given calculation for C4H4N2 (Succinonitrile)

using model chemistry: B1B95/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-264.274785
Energy at 298.15K-264.278692
Nuclear repulsion energy180.174910
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/cc-pVTZ
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 3087 2955 0.00      
2 Ag 2395 2292 0.00      
3 Ag 1469 1406 0.00      
4 Ag 1383 1323 0.00      
5 Ag 1046 1001 0.00      
6 Ag 978 936 0.00      
7 Ag 523 501 0.00      
8 Ag 223 213 0.00      
9 Au 3146 3011 0.04      
10 Au 1209 1157 0.01      
11 Au 767 734 3.39      
12 Au 404 387 0.12      
13 Au 77 73 22.18      
14 Bg 3126 2992 0.00      
15 Bg 1315 1258 0.00      
16 Bg 1033 988 0.00      
17 Bg 366 350 0.00      
18 Bu 3097 2964 1.33      
19 Bu 2396 2293 12.54      
20 Bu 1477 1414 16.78      
21 Bu 1287 1232 1.94      
22 Bu 950 909 3.31      
23 Bu 533 510 0.85      
24 Bu 129 123 23.02      

Unscaled Zero Point Vibrational Energy (zpe) 16206.4 cm-1
Scaled (by 0.9571) Zero Point Vibrational Energy (zpe) 15511.1 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/cc-pVTZ
ABC
0.86547 0.05011 0.04821

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/cc-pVTZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.421 0.641 0.000
C2 -0.421 -0.641 0.000
C3 -0.421 1.823 0.000
C4 0.421 -1.823 0.000
N5 1.104 -2.745 0.000
N6 -1.104 2.745 0.000
H7 1.066 0.668 0.876
H8 1.066 0.668 -0.876
H9 -1.066 -0.668 0.876
H10 -1.066 -0.668 -0.876

Atom - Atom Distances (Å)
  C1 C2 C3 C4 N5 N6 H7 H8 H9 H10
C11.53421.45202.46403.45412.59901.08821.08822.16642.1664
C21.53422.46401.45202.59903.45412.16642.16641.08821.0882
C31.45202.46403.74244.81621.14712.07752.07752.71802.7180
C42.46401.45203.74241.14714.81622.71802.71802.07752.0775
N53.45412.59904.81621.14715.91753.52363.52363.12943.1294
N62.59903.45411.14714.81625.91753.12943.12943.52363.5236
H71.08822.16642.07752.71803.52363.12941.75232.51613.0662
H81.08822.16642.07752.71803.52363.12941.75233.06622.5161
H92.16641.08822.71802.07753.12943.52362.51613.06621.7523
H102.16641.08822.71802.07753.12943.52363.06622.51611.7523

picture of Succinonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 111.180 C1 C2 H9 110.252
C1 C2 H10 110.252 C1 C3 N6 178.972
C2 C1 C3 111.180 C2 C1 H7 110.252
C2 C1 H8 110.252 C2 C4 N5 178.972
C3 C1 H7 108.901 C3 C1 H8 108.901
C4 C2 H9 108.901 C4 C2 H10 108.901
H7 C1 H8 107.256 H9 C2 H10 107.256
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.189      
2 C -0.189      
3 C -0.094      
4 C -0.094      
5 N -0.051      
6 N -0.051      
7 H 0.167      
8 H 0.167      
9 H 0.167      
10 H 0.167      


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 -37.124 11.433 0.000
y 11.433 -55.623 0.000
z 0.000 0.000 -32.752
Traceless
 xyz
x 7.063 11.433 0.000
y 11.433 -20.685 0.000
z 0.000 0.000 13.622
Polar
3z2-r227.243
x2-y218.499
xy11.433
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.082 -2.171 0.000
y -2.171 10.017 0.000
z 0.000 0.000 5.430


<r2> (average value of r2) Å2
<r2> 207.166
(<r2>)1/2 14.393