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All results from a given calculation for C4H4N2 (Succinonitrile)

using model chemistry: B3LYPultrafine/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B3LYPultrafine/6-31G*
 hartrees
Energy at 0K-264.301385
Energy at 298.15K-264.305265
Nuclear repulsion energy178.358617
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 B3LYPultrafine/6-31G*
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 3071 2942 0.00      
2 Ag 2375 2275 0.00      
3 Ag 1498 1435 0.00      
4 Ag 1400 1341 0.00      
5 Ag 1026 983 0.00      
6 Ag 974 934 0.00      
7 Ag 515 493 0.00      
8 Ag 224 215 0.00      
9 Au 3127 2995 1.60      
10 Au 1224 1173 0.13      
11 Au 780 747 3.64      
12 Au 409 391 0.22      
13 Au 80 77 20.57      
14 Bg 3108 2978 0.00      
15 Bg 1328 1272 0.00      
16 Bg 1051 1007 0.00      
17 Bg 368 353 0.00      
18 Bu 3080 2951 3.85      
19 Bu 2376 2277 7.44      
20 Bu 1505 1442 12.72      
21 Bu 1309 1254 2.34      
22 Bu 937 898 5.51      
23 Bu 529 507 1.18      
24 Bu 132 127 21.90      

Unscaled Zero Point Vibrational Energy (zpe) 16213.7 cm-1
Scaled (by 0.958) Zero Point Vibrational Energy (zpe) 15532.7 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 B3LYPultrafine/6-31G*
ABC
0.85315 0.04903 0.04718

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-31G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.425 0.648 0.000
C2 -0.425 -0.648 0.000
C3 -0.425 1.842 0.000
C4 0.425 -1.842 0.000
N5 1.112 -2.777 0.000
N6 -1.112 2.777 0.000
H7 1.075 0.672 0.881
H8 1.075 0.672 -0.881
H9 -1.075 -0.672 0.881
H10 -1.075 -0.672 -0.881

Atom - Atom Distances (Å)
  C1 C2 C3 C4 N5 N6 H7 H8 H9 H10
C11.54991.46562.49013.49362.62591.09561.09562.18372.1837
C21.54992.49011.46562.62593.49362.18372.18371.09561.0956
C31.46562.49013.78094.86841.16032.09692.09692.74202.7420
C42.49011.46563.78091.16034.86842.74202.74202.09692.0969
N53.49362.62594.86841.16035.98323.56013.56013.16113.1611
N62.62593.49361.16034.86845.98323.16113.16113.56013.5601
H71.09562.18372.09692.74203.56013.16111.76302.53533.0880
H81.09562.18372.09692.74203.56013.16111.76303.08802.5353
H92.18371.09562.74202.09693.16113.56012.53533.08801.7630
H102.18371.09562.74202.09693.16113.56013.08802.53531.7630

picture of Succinonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 111.301 C1 C2 H9 110.087
C1 C2 H10 110.087 C1 C3 N6 179.164
C2 C1 C3 111.301 C2 C1 H7 110.087
C2 C1 H8 110.087 C2 C4 N5 179.164
C3 C1 H7 109.060 C3 C1 H8 109.060
C4 C2 H9 109.060 C4 C2 H10 109.060
H7 C1 H8 107.145 H9 C2 H10 107.145
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.343      
2 C -0.343      
3 C 0.356      
4 C 0.356      
5 N -0.454      
6 N -0.454      
7 H 0.221      
8 H 0.221      
9 H 0.221      
10 H 0.221      


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 -36.825 11.307 0.000
y 11.307 -55.158 0.000
z 0.000 0.000 -32.482
Traceless
 xyz
x 6.995 11.307 0.000
y 11.307 -20.504 0.000
z 0.000 0.000 13.509
Polar
3z2-r227.017
x2-y218.333
xy11.307
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.304 -2.360 0.000
y -2.360 9.188 0.000
z 0.000 0.000 4.623


<r2> (average value of r2) Å2
<r2> 210.837
(<r2>)1/2 14.520