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All results from a given calculation for C4H4N2 (Succinonitrile)

using model chemistry: B2PLYP/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 B2PLYP/6-31G*
 hartrees
Energy at 0K-264.033835
Energy at 298.15K-264.037692
HF Energy-263.755785
Nuclear repulsion energy178.251203
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 B2PLYP/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 3104 2947 0.00      
2 Ag 2309 2192 0.00      
3 Ag 1520 1443 0.00      
4 Ag 1419 1347 0.00      
5 Ag 1046 993 0.00      
6 Ag 981 931 0.00      
7 Ag 512 486 0.00      
8 Ag 221 210 0.00      
9 Au 3164 3003 1.22      
10 Au 1236 1174 0.07      
11 Au 789 749 3.26      
12 Au 398 378 0.19      
13 Au 80 76 20.30      
14 Bg 3146 2986 0.00      
15 Bg 1344 1276 0.00      
16 Bg 1064 1010 0.00      
17 Bg 358 340 0.00      
18 Bu 3113 2955 3.27      
19 Bu 2311 2194 0.65      
20 Bu 1527 1449 12.78      
21 Bu 1322 1255 1.80      
22 Bu 942 894 5.74      
23 Bu 521 495 1.08      
24 Bu 130 123 21.55      

Unscaled Zero Point Vibrational Energy (zpe) 16278.4 cm-1
Scaled (by 0.9492) Zero Point Vibrational Energy (zpe) 15451.4 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 B2PLYP/6-31G*
ABC
0.84972 0.04910 0.04723

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.426 0.643 0.000
C2 -0.426 -0.643 0.000
C3 -0.426 1.838 0.000
C4 0.426 -1.838 0.000
N5 1.120 -2.773 0.000
N6 -1.120 2.773 0.000
H7 1.072 0.669 0.881
H8 1.072 0.669 -0.881
H9 -1.072 -0.669 0.881
H10 -1.072 -0.669 -0.881

Atom - Atom Distances (Å)
  C1 C2 C3 C4 N5 N6 H7 H8 H9 H10
C11.54331.46802.48133.48632.63221.09291.09292.17792.1779
C21.54332.48131.46802.63223.48632.17792.17791.09291.0929
C31.46802.48133.77384.86391.16432.09512.09512.73462.7346
C42.48131.46803.77381.16434.86392.73462.73462.09512.0951
N53.48632.63224.86391.16435.98193.55363.55363.16393.1639
N62.63223.48631.16434.86395.98193.16393.16393.55363.5536
H71.09292.17792.09512.73463.55363.16391.76262.52723.0812
H81.09292.17792.09512.73463.55363.16391.76263.08122.5272
H92.17791.09292.73462.09513.16393.55362.52723.08121.7626
H102.17791.09292.73462.09513.16393.55363.08122.52721.7626

picture of Succinonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 110.942 C1 C2 H9 110.244
C1 C2 H10 110.244 C1 C3 N6 178.971
C2 C1 C3 110.942 C2 C1 H7 110.244
C2 C1 H8 110.244 C2 C4 N5 178.971
C3 C1 H7 108.916 C3 C1 H8 108.916
C4 C2 H9 108.916 C4 C2 H10 108.916
H7 C1 H8 107.496 H9 C2 H10 107.496
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.354      
2 C -0.354      
3 C 0.340      
4 C 0.340      
5 N -0.456      
6 N -0.456      
7 H 0.235      
8 H 0.235      
9 H 0.235      
10 H 0.235      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.252 -2.296 0.000
y -2.296 8.942 0.000
z 0.000 0.000 4.598


<r2> (average value of r2) Å2
<r2> 210.982
(<r2>)1/2 14.525