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All results from a given calculation for C3H2N2 (Malononitrile)

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 C2V 1A1
Energy calculated at TPSSh/6-31G(2df,p)
 hartrees
Energy at 0K-225.000026
Energy at 298.15K-225.001696
HF Energy-225.000026
Nuclear repulsion energy124.596965
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 A1 3052 2945 0.08      
2 A1 2357 2274 0.27      
3 A1 1450 1399 10.30      
4 A1 896 864 4.73      
5 A1 581 561 0.40      
6 A1 144 139 10.30      
7 A2 1235 1192 0.00      
8 A2 377 364 0.00      
9 B1 3094 2986 1.65      
10 B1 937 904 0.37      
11 B1 345 333 0.56      
12 B2 2351 2268 1.34      
13 B2 1329 1282 5.30      
14 B2 982 948 5.29      
15 B2 375 362 0.60      

Unscaled Zero Point Vibrational Energy (zpe) 9751.4 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 9410.1 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
0.69366 0.09758 0.08694

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.843
C2 0.000 1.220 0.026
C3 0.000 -1.220 0.026
H4 0.884 0.000 1.489
H5 -0.884 0.000 1.489
N6 0.000 2.194 -0.596
N7 0.000 -2.194 -0.596

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 N6 N7
C11.46871.46871.09481.09482.62422.6242
C21.46872.44092.10022.10021.15563.4710
C31.46872.44092.10022.10023.47101.1556
H41.09482.10022.10021.76863.15323.1532
H51.09482.10022.10021.76863.15323.1532
N62.62421.15563.47103.15323.15324.3888
N72.62423.47101.15563.15323.15324.3888

picture of Malononitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N6 178.754 C1 C3 N7 178.754
C2 C1 C3 112.391 C2 C1 H4 109.149
C2 C1 H5 109.149 C3 C1 H4 109.149
C3 C1 H5 109.149 H4 C1 H5 107.742
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability