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All results from a given calculation for C4H4N2 (Succinonitrile)

using model chemistry: B1B95/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B1B95/6-31G*
 hartrees
Energy at 0K-264.186105
Energy at 298.15K-264.190000
Nuclear repulsion energy179.253611
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 B1B95/6-31G*
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 3106 2949 0.00      
2 Ag 2410 2288 0.00      
3 Ag 1495 1419 0.00      
4 Ag 1405 1333 0.00      
5 Ag 1054 1001 0.00      
6 Ag 988 938 0.00      
7 Ag 522 496 0.00      
8 Ag 224 212 0.00      
9 Au 3168 3008 0.25      
10 Au 1224 1162 0.18      
11 Au 777 737 4.40      
12 Au 412 391 0.13      
13 Au 79 75 20.75      
14 Bg 3150 2990 0.00      
15 Bg 1329 1262 0.00      
16 Bg 1046 993 0.00      
17 Bg 371 352 0.00      
18 Bu 3115 2957 2.19      
19 Bu 2412 2289 10.15      
20 Bu 1501 1425 15.60      
21 Bu 1304 1238 1.62      
22 Bu 959 910 5.00      
23 Bu 532 505 1.23      
24 Bu 130 123 22.07      

Unscaled Zero Point Vibrational Energy (zpe) 16355.0 cm-1
Scaled (by 0.9493) Zero Point Vibrational Energy (zpe) 15525.8 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 B1B95/6-31G*
ABC
0.85955 0.04962 0.04774

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.423 0.642 0.000
C2 -0.423 -0.642 0.000
C3 -0.423 1.829 0.000
C4 0.423 -1.829 0.000
N5 1.110 -2.760 0.000
N6 -1.110 2.760 0.000
H7 1.071 0.667 0.879
H8 1.071 0.667 -0.879
H9 -1.071 -0.667 0.879
H10 -1.071 -0.667 -0.879

Atom - Atom Distances (Å)
  C1 C2 C3 C4 N5 N6 H7 H8 H9 H10
C11.53851.45762.47193.47152.61441.09271.09272.17282.1728
C21.53852.47191.45762.61443.47152.17282.17281.09271.0927
C31.45762.47193.75544.83901.15692.08732.08732.72512.7251
C42.47191.45763.75541.15694.83902.72512.72512.08732.0873
N53.47152.61444.83901.15695.95033.53873.53873.14833.1483
N62.61443.47151.15694.83905.95033.14833.14833.53873.5387
H71.09272.17282.08732.72513.53873.14831.75872.52393.0762
H81.09272.17282.08732.72513.53873.14831.75873.07622.5239
H92.17281.09272.72512.08733.14833.53872.52393.07621.7587
H102.17281.09272.72512.08733.14833.53873.07622.52391.7587

picture of Succinonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 111.157 C1 C2 H9 110.184
C1 C2 H10 110.184 C1 C3 N6 179.068
C2 C1 C3 111.157 C2 C1 H7 110.184
C2 C1 H8 110.184 C2 C4 N5 179.068
C3 C1 H7 109.023 C3 C1 H8 109.023
C4 C2 H9 109.023 C4 C2 H10 109.023
H7 C1 H8 107.172 H9 C2 H10 107.172
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.388      
2 C -0.388      
3 C 0.345      
4 C 0.345      
5 N -0.444      
6 N -0.444      
7 H 0.244      
8 H 0.244      
9 H 0.244      
10 H 0.244      


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 -36.604 11.208 0.000
y 11.208 -54.779 0.000
z 0.000 0.000 -32.326
Traceless
 xyz
x 6.948 11.208 0.000
y 11.208 -20.314 0.000
z 0.000 0.000 13.366
Polar
3z2-r226.731
x2-y218.175
xy11.208
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.284 -2.344 0.000
y -2.344 9.099 0.000
z 0.000 0.000 4.597


<r2> (average value of r2) Å2
<r2> 208.548
(<r2>)1/2 14.441