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All results from a given calculation for C4H4N2 (Succinonitrile)

using model chemistry: B3LYP/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-264.318618
Energy at 298.15K-264.322480
Nuclear repulsion energy178.317371
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/6-31+G**
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 3066 2956 0.00      
2 Ag 2361 2276 0.00      
3 Ag 1477 1424 0.00      
4 Ag 1386 1337 0.00      
5 Ag 1022 985 0.00      
6 Ag 968 933 0.00      
7 Ag 510 492 0.00      
8 Ag 222 214 0.00      
9 Au 3124 3012 0.38      
10 Au 1212 1169 0.00      
11 Au 773 745 2.79      
12 Au 401 386 0.03      
13 Au 80 77 22.91      
14 Bg 3106 2995 0.00      
15 Bg 1316 1269 0.00      
16 Bg 1038 1000 0.00      
17 Bg 362 349 0.00      
18 Bu 3075 2965 2.69      
19 Bu 2362 2278 13.18      
20 Bu 1483 1430 15.50      
21 Bu 1296 1250 2.46      
22 Bu 932 898 5.46      
23 Bu 524 505 1.98      
24 Bu 131 126 23.82      

Unscaled Zero Point Vibrational Energy (zpe) 16112.4 cm-1
Scaled (by 0.9642) Zero Point Vibrational Energy (zpe) 15535.5 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/6-31+G**
ABC
0.85452 0.04898 0.04714

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31+G**

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 -1.365 1.309 0.000
C4 1.365 -1.309 0.000
N5 2.452 -1.717 0.000
N6 -2.452 1.717 0.000
H7 0.527 1.153 0.882
H8 0.527 1.153 -0.882
H9 -0.527 -1.153 0.882
H10 -0.527 -1.153 -0.882

Atom - Atom Distances (Å)
  C1 C2 C3 C4 N5 N6 H7 H8 H9 H10
C11.54991.46562.49093.49592.62651.09501.09502.18482.1848
C21.54992.49091.46562.62653.49592.18482.18481.09501.0950
C31.46562.49093.78194.87051.16092.09372.09372.74572.7457
C42.49091.46563.78191.16094.87052.74572.74572.09372.0937
N53.49592.62654.87051.16095.98643.56623.56623.15783.1578
N62.62653.49591.16094.87055.98643.15783.15783.56623.5662
H71.09502.18482.09372.74573.56623.15781.76382.53603.0890
H81.09502.18482.09372.74573.56623.15781.76383.08902.5360
H92.18481.09502.74572.09373.15783.56622.53603.08901.7638
H102.18481.09502.74572.09373.15783.56623.08902.53601.7638

picture of Succinonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 111.353 C1 C2 H9 110.201
C1 C2 H10 110.201 C1 C3 N6 179.245
C2 C1 C3 111.353 C2 C1 H7 110.201
C2 C1 H8 110.201 C2 C4 N5 179.245
C3 C1 H7 108.841 C3 C1 H8 108.841
C4 C2 H9 108.841 C4 C2 H10 108.841
H7 C1 H8 107.299 H9 C2 H10 107.299
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.099     -0.089
2 C -0.099     -0.070
3 C 0.175     0.325
4 C 0.175     0.320
5 N -0.495     -0.446
6 N -0.495     -0.447
7 H 0.209     0.104
8 H 0.209     0.104
9 H 0.209     0.100
10 H 0.209     0.100


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 -0.001 -0.002 0.000 0.002


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -54.928 13.753 0.000
y 13.753 -40.661 0.000
z 0.000 0.000 -33.439
Traceless
 xyz
x -17.878 13.753 0.000
y 13.753 3.523 0.000
z 0.000 0.000 14.355
Polar
3z2-r228.711
x2-y2-14.267
xy13.753
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.592 -2.438 0.000
y -2.438 7.234 0.000
z 0.000 0.000 5.537


<r2> (average value of r2) Å2
<r2> 211.950
(<r2>)1/2 14.558