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All results from a given calculation for C4H4N2 (Succinonitrile)

using model chemistry: TPSSh/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at TPSSh/6-31G(2df,p)
 hartrees
Energy at 0K-264.330742
Energy at 298.15K-264.334598
HF Energy-264.330742
Nuclear repulsion energy178.672892
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 TPSSh/6-31G(2df,p)
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 3063 2956 0.00      
2 Ag 2340 2258 0.00      
3 Ag 1476 1424 0.00      
4 Ag 1370 1322 0.00      
5 Ag 1018 982 0.00      
6 Ag 962 929 0.00      
7 Ag 515 497 0.00      
8 Ag 221 213 0.00      
9 Au 3123 3014 1.16      
10 Au 1201 1159 0.00      
11 Au 763 736 2.83      
12 Au 405 390 0.22      
13 Au 75 72 20.53      
14 Bg 3104 2995 0.00      
15 Bg 1312 1266 0.00      
16 Bg 1034 998 0.00      
17 Bg 367 354 0.00      
18 Bu 3072 2965 3.76      
19 Bu 2342 2260 8.13      
20 Bu 1485 1433 10.94      
21 Bu 1282 1237 3.60      
22 Bu 932 899 3.79      
23 Bu 525 507 1.01      
24 Bu 127 123 21.76      

Unscaled Zero Point Vibrational Energy (zpe) 16056.3 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 15494.3 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 TPSSh/6-31G(2df,p)
ABC
0.84857 0.04933 0.04744

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-31G(2df,p)

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.426 0.647 0.000
C2 -0.426 -0.647 0.000
C3 -0.426 1.836 0.000
C4 0.426 -1.836 0.000
N5 1.119 -2.765 0.000
N6 -1.119 2.765 0.000
H7 1.073 0.671 0.881
H8 1.073 0.671 -0.881
H9 -1.073 -0.671 0.881
H10 -1.073 -0.671 -0.881

Atom - Atom Distances (Å)
  C1 C2 C3 C4 N5 N6 H7 H8 H9 H10
C11.54951.46232.48373.48232.62151.09411.09412.18232.1823
C21.54952.48371.46232.62153.48232.18232.18231.09411.0941
C31.46232.48373.77004.85391.15932.09322.09322.73572.7357
C42.48371.46233.77001.15934.85392.73572.73572.09322.0932
N53.48232.62154.85391.15935.96633.54793.54793.15753.1575
N62.62153.48231.15934.85395.96633.15753.15753.54793.5479
H71.09412.18232.09322.73573.54793.15751.76292.53183.0851
H81.09412.18232.09322.73573.54793.15751.76293.08512.5318
H92.18231.09412.73572.09323.15753.54792.53183.08511.7629
H102.18231.09412.73572.09323.15753.54793.08512.53181.7629

picture of Succinonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 111.070 C1 C2 H9 110.086
C1 C2 H10 110.086 C1 C3 N6 178.846
C2 C1 C3 111.070 C2 C1 H7 110.086
C2 C1 H8 110.086 C2 C4 N5 178.846
C3 C1 H7 109.083 C3 C1 H8 109.083
C4 C2 H9 109.083 C4 C2 H10 109.083
H7 C1 H8 107.348 H9 C2 H10 107.348
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability