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All results from a given calculation for C4H4N2 (Succinonitrile)

using model chemistry: HF/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-262.789913
Energy at 298.15K-262.794118
HF Energy-262.789913
Nuclear repulsion energy180.664400
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/Def2TZVPP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Ag 3214 2913 0.00      
2 Ag 2596 2353 0.00      
3 Ag 1598 1448 0.00      
4 Ag 1523 1380 0.00      
5 Ag 1099 996 0.00      
6 Ag 1027 931 0.00      
7 Ag 561 508 0.00      
8 Ag 249 225 0.00      
9 Au 3272 2966 2.02      
10 Au 1316 1193 0.02      
11 Au 833 755 2.64      
12 Au 447 405 1.34      
13 Au 86 78 26.12      
14 Bg 3251 2947 0.00      
15 Bg 1427 1293 0.00      
16 Bg 1140 1033 0.00      
17 Bg 408 370 0.00      
18 Bu 3222 2920 3.88      
19 Bu 2597 2354 22.74      
20 Bu 1607 1456 13.29      
21 Bu 1409 1277 5.53      
22 Bu 969 878 16.65      
23 Bu 587 532 0.18      
24 Bu 145 131 28.53      

Unscaled Zero Point Vibrational Energy (zpe) 17289.7 cm-1
Scaled (by 0.9064) Zero Point Vibrational Energy (zpe) 15671.4 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 HF/Def2TZVPP
ABC
0.86781 0.05013 0.04823

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/Def2TZVPP

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.426 0.641 0.000
C2 -0.426 -0.641 0.000
C3 -0.426 1.834 0.000
C4 0.426 -1.834 0.000
N5 1.098 -2.731 0.000
N6 -1.098 2.731 0.000
H7 1.064 0.672 0.872
H8 1.064 0.672 -0.872
H9 -1.064 -0.672 0.872
H10 -1.064 -0.672 -0.872

Atom - Atom Distances (Å)
  C1 C2 C3 C4 N5 N6 H7 H8 H9 H10
C11.53871.46532.47483.43822.58621.08121.08122.16882.1688
C21.53872.47481.46532.58623.43822.16882.16881.08121.0812
C31.46532.47483.76514.81221.12112.08062.08062.72912.7291
C42.47481.46533.76511.12114.81222.72912.72912.08062.0806
N53.43822.58624.81221.12115.88663.51323.51323.11023.1102
N62.58623.43821.12114.81225.88663.11023.11023.51323.5132
H71.08122.16882.08062.72913.51323.11021.74372.51753.0624
H81.08122.16882.08062.72913.51323.11021.74373.06242.5175
H92.16881.08122.72912.08063.11023.51322.51753.06241.7437
H102.16881.08122.72912.08063.11023.51323.06242.51751.7437

picture of Succinonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 110.917 C1 C2 H9 110.537
C1 C2 H10 110.537 C1 C3 N6 178.653
C2 C1 C3 110.917 C2 C1 H7 110.537
C2 C1 H8 110.537 C2 C4 N5 178.653
C3 C1 H7 108.637 C3 C1 H8 108.637
C4 C2 H9 108.637 C4 C2 H10 108.637
H7 C1 H8 107.477 H9 C2 H10 107.477
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.091      
2 C 0.091      
3 C -0.205      
4 C -0.205      
5 N -0.106      
6 N -0.106      
7 H 0.110      
8 H 0.110      
9 H 0.110      
10 H 0.110      


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 -37.963 12.288 0.000
y 12.288 -57.927 0.000
z 0.000 0.000 -33.238
Traceless
 xyz
x 7.620 12.288 0.000
y 12.288 -22.327 0.000
z 0.000 0.000 14.707
Polar
3z2-r229.415
x2-y219.965
xy12.288
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.857 -1.995 0.000
y -1.995 9.473 0.000
z 0.000 0.000 5.376


<r2> (average value of r2) Å2
<r2> 207.819
(<r2>)1/2 14.416