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All results from a given calculation for C4H4N2 (Succinonitrile)

using model chemistry: B3LYP/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B3LYP/6-31G(2df,p)
 hartrees
Energy at 0K-264.316406
Energy at 298.15K-264.320319
Nuclear repulsion energy178.880627
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 B3LYP/6-31G(2df,p)
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 3059 2952 0.00      
2 Ag 2368 2285 0.00      
3 Ag 1467 1416 0.00      
4 Ag 1377 1329 0.00      
5 Ag 1021 985 0.00      
6 Ag 968 934 0.00      
7 Ag 519 501 0.00      
8 Ag 227 219 0.00      
9 Au 3115 3006 0.80      
10 Au 1207 1165 0.06      
11 Au 770 743 3.29      
12 Au 413 399 0.50      
13 Au 78 75 20.90      
14 Bg 3096 2987 0.00      
15 Bg 1311 1266 0.00      
16 Bg 1038 1002 0.00      
17 Bg 376 363 0.00      
18 Bu 3069 2961 2.97      
19 Bu 2369 2286 8.66      
20 Bu 1477 1425 12.16      
21 Bu 1291 1246 3.50      
22 Bu 936 903 3.89      
23 Bu 534 516 0.63      
24 Bu 133 128 22.42      

Unscaled Zero Point Vibrational Energy (zpe) 16108.9 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 15545.1 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 B3LYP/6-31G(2df,p)
ABC
0.85473 0.04934 0.04747

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.775 0.000
C2 0.000 -0.775 0.000
C3 -1.360 1.306 0.000
C4 1.360 -1.306 0.000
N5 2.443 -1.709 0.000
N6 -2.443 1.709 0.000
H7 0.532 1.149 0.880
H8 0.532 1.149 -0.880
H9 -0.532 -1.149 0.880
H10 -0.532 -1.149 -0.880

Atom - Atom Distances (Å)
  C1 C2 C3 C4 N5 N6 H7 H8 H9 H10
C11.54941.46032.48613.48382.61541.09441.09442.18152.1815
C21.54942.48611.46032.61543.48382.18152.18151.09441.0944
C31.46032.48613.77174.85331.15512.09272.09272.73682.7368
C42.48611.46033.77171.15514.85332.73682.73682.09272.0927
N53.48382.61544.85331.15515.96263.54913.54913.15233.1523
N62.61543.48381.15514.85335.96263.15233.15233.54913.5491
H71.09442.18152.09272.73683.54913.15231.75992.53293.0843
H81.09442.18152.09272.73683.54913.15231.75993.08432.5329
H92.18151.09442.73682.09273.15233.54912.53293.08431.7599
H102.18151.09442.73682.09273.15233.54913.08432.53291.7599

picture of Succinonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 111.346 C1 C2 H9 110.015
C1 C2 H10 110.015 C1 C3 N6 179.068
C2 C1 C3 111.346 C2 C1 H7 110.015
C2 C1 H8 110.015 C2 C4 N5 179.068
C3 C1 H7 109.160 C3 C1 H8 109.160
C4 C2 H9 109.160 C4 C2 H10 109.160
H7 C1 H8 107.042 H9 C2 H10 107.042
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.332      
2 C -0.332      
3 C 0.260      
4 C 0.260      
5 N -0.287      
6 N -0.287      
7 H 0.179      
8 H 0.179      
9 H 0.179      
10 H 0.179      


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 -52.618 12.909 0.000
y 12.909 -39.173 0.000
z 0.000 0.000 -32.364
Traceless
 xyz
x -16.849 12.909 0.000
y 12.909 3.318 0.000
z 0.000 0.000 13.532
Polar
3z2-r227.063
x2-y2-13.445
xy12.909
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.524 -2.215 0.000
y -2.215 6.641 0.000
z 0.000 0.000 5.039


<r2> (average value of r2) Å2
<r2> 209.675
(<r2>)1/2 14.480