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All results from a given calculation for C4H4N2 (Succinonitrile)

using model chemistry: B3LYP/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 B3LYP/6-311G*
 hartrees
Energy at 0K-264.368155
Energy at 298.15K-264.372080
Nuclear repulsion energy179.037518
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/6-311G*
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 3061 2957 0.00      
2 Ag 2365 2285 0.00      
3 Ag 1488 1437 0.00      
4 Ag 1396 1349 0.00      
5 Ag 1023 989 0.00      
6 Ag 973 941 0.00      
7 Ag 519 501 0.00      
8 Ag 228 220 0.00      
9 Au 3112 3008 2.66      
10 Au 1234 1192 0.13      
11 Au 777 750 3.45      
12 Au 410 396 0.04      
13 Au 81 79 21.00      
14 Bg 3093 2989 0.00      
15 Bg 1335 1290 0.00      
16 Bg 1048 1012 0.00      
17 Bg 371 359 0.00      
18 Bu 3070 2967 5.25      
19 Bu 2366 2286 8.09      
20 Bu 1496 1445 16.94      
21 Bu 1310 1266 1.64      
22 Bu 935 903 5.76      
23 Bu 537 519 1.21      
24 Bu 135 130 21.98      

Unscaled Zero Point Vibrational Energy (zpe) 16180.1 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 15634.8 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/6-311G*
ABC
0.85771 0.04937 0.04751

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.774 0.000
C2 0.000 -0.774 0.000
C3 -1.360 1.307 0.000
C4 1.360 -1.307 0.000
N5 2.439 -1.711 0.000
N6 -2.439 1.711 0.000
H7 0.530 1.151 0.878
H8 0.530 1.151 -0.878
H9 -0.530 -1.151 0.878
H10 -0.530 -1.151 -0.878

Atom - Atom Distances (Å)
  C1 C2 C3 C4 N5 N6 H7 H8 H9 H10
C11.54761.46082.48613.48202.61291.09311.09312.18082.1808
C21.54762.48611.46082.61293.48202.18082.18081.09311.0931
C31.46082.48613.77284.85221.15222.09022.09022.73882.7388
C42.48611.46083.77281.15224.85222.73882.73882.09022.0902
N53.48202.61294.85221.15225.95893.55043.55043.14683.1468
N62.61293.48201.15224.85225.95893.14683.14683.55043.5504
H71.09312.18082.09022.73883.55043.14681.75682.53383.0833
H81.09312.18082.09022.73883.55043.14681.75683.08332.5338
H92.18081.09312.73882.09023.14683.55042.53383.08331.7568
H102.18081.09312.73882.09023.14683.55043.08332.53381.7568

picture of Succinonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 111.426 C1 C2 H9 110.162
C1 C2 H10 110.162 C1 C3 N6 179.100
C2 C1 C3 111.426 C2 C1 H7 110.162
C2 C1 H8 110.162 C2 C4 N5 179.100
C3 C1 H7 109.012 C3 C1 H8 109.012
C4 C2 H9 109.012 C4 C2 H10 109.012
H7 C1 H8 106.951 H9 C2 H10 106.951
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.451     -0.106
2 C -0.451     -0.074
3 C 0.105     0.307
4 C 0.105     0.298
5 N -0.210     -0.422
6 N -0.210     -0.424
7 H 0.278     0.108
8 H 0.278     0.108
9 H 0.278     0.102
10 H 0.278     0.102


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 -0.004 0.000 0.004


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -53.405 13.063 0.000
y 13.063 -39.991 0.000
z 0.000 0.000 -33.017
Traceless
 xyz
x -16.902 13.063 0.000
y 13.063 3.220 0.000
z 0.000 0.000 13.681
Polar
3z2-r227.363
x2-y2-13.415
xy13.063
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.567 -2.205 0.000
y -2.205 6.581 0.000
z 0.000 0.000 4.921


<r2> (average value of r2) Å2
<r2> 209.991
(<r2>)1/2 14.491