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All results from a given calculation for C4H4N2 (Succinonitrile)

using model chemistry: HF/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at HF/aug-cc-pVTZ
 hartrees
Energy at 0K-262.783396
Energy at 298.15K-262.787610
Nuclear repulsion energy180.677085
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 HF/aug-cc-pVTZ
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 3212 2924 0.00      
2 Ag 2593 2360 0.00      
3 Ag 1596 1453 0.00      
4 Ag 1523 1387 0.00      
5 Ag 1099 1001 0.00      
6 Ag 1027 935 0.00      
7 Ag 560 510 0.00      
8 Ag 248 226 0.00      
9 Au 3270 2977 1.83      
10 Au 1316 1198 0.01      
11 Au 832 757 2.63      
12 Au 446 406 1.77      
13 Au 85 77 26.27      
14 Bg 3249 2958 0.00      
15 Bg 1428 1300 0.00      
16 Bg 1139 1037 0.00      
17 Bg 407 371 0.00      
18 Bu 3220 2931 3.55      
19 Bu 2593 2361 25.15      
20 Bu 1605 1462 12.78      
21 Bu 1408 1282 6.47      
22 Bu 969 882 16.41      
23 Bu 585 533 0.23      
24 Bu 145 132 29.08      

Unscaled Zero Point Vibrational Energy (zpe) 17276.9 cm-1
Scaled (by 0.9104) Zero Point Vibrational Energy (zpe) 15728.9 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 HF/aug-cc-pVTZ
ABC
0.86817 0.05014 0.04824

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/aug-cc-pVTZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.426 0.639 0.000
C2 -0.426 -0.639 0.000
C3 -0.426 1.834 0.000
C4 0.426 -1.834 0.000
N5 1.093 -2.741 0.000
N6 -1.093 2.741 0.000
H7 1.062 0.671 0.873
H8 1.062 0.671 -0.873
H9 -1.062 -0.671 0.873
H10 -1.062 -0.671 -0.873

Atom - Atom Distances (Å)
  C1 C2 C3 C4 N5 N6 H7 H8 H9 H10
C11.53541.46742.47283.44532.59361.08081.08082.16582.1658
C21.53542.47281.46742.59363.44532.16582.16581.08081.0808
C31.46742.47283.76554.82071.12622.08052.08052.72792.7279
C42.47281.46743.76551.12624.82072.72792.72792.08052.0805
N53.44532.59364.82071.12625.90233.52223.52223.11333.1133
N62.59363.44531.12624.82075.90233.11333.11333.52223.5222
H71.08082.16582.08052.72793.52223.11331.74602.51233.0595
H81.08082.16582.08052.72793.52223.11331.74603.05952.5123
H92.16581.08082.72792.08053.11333.52222.51233.05951.7460
H102.16581.08082.72792.08053.11333.52223.05952.51231.7460

picture of Succinonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 110.856 C1 C2 H9 110.557
C1 C2 H10 110.557 C1 C3 N6 179.134
C2 C1 C3 110.856 C2 C1 H7 110.557
C2 C1 H8 110.557 C2 C4 N5 179.134
C3 C1 H7 108.510 C3 C1 H8 108.510
C4 C2 H9 108.510 C4 C2 H10 108.510
H7 C1 H8 107.757 H9 C2 H10 107.757
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.066      
2 C -0.066      
3 C -0.003      
4 C -0.003      
5 N -0.520      
6 N -0.520      
7 H 0.294      
8 H 0.294      
9 H 0.294      
10 H 0.294      


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 -38.037 12.338 0.000
y 12.338 -57.981 0.000
z 0.000 0.000 -33.258
Traceless
 xyz
x 7.583 12.338 0.000
y 12.338 -22.333 0.000
z 0.000 0.000 14.750
Polar
3z2-r229.501
x2-y219.944
xy12.338
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.251 -1.867 0.000
y -1.867 9.860 0.000
z 0.000 0.000 5.865


<r2> (average value of r2) Å2
<r2> 207.812
(<r2>)1/2 14.416