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All results from a given calculation for C3H2N2 (Malononitrile)

using model chemistry: CID/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CID/6-311G**
 hartrees
Energy at 0K-224.310159
Energy at 298.15K-224.311989
Nuclear repulsion energy125.504126
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 CID/6-311G**
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 3187 3187 0.19      
2 A1 2502 2502 0.28      
3 A1 1523 1523 11.55      
4 A1 946 946 7.63      
5 A1 616 616 0.83      
6 A1 157 157 11.50      
7 A2 1306 1306 0.00      
8 A2 397 397 0.00      
9 B1 3235 3235 2.17      
10 B1 991 991 0.09      
11 B1 364 364 0.58      
12 B2 2499 2499 0.53      
13 B2 1417 1417 5.83      
14 B2 1035 1035 10.81      
15 B2 400 400 0.97      

Unscaled Zero Point Vibrational Energy (zpe) 10287.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10287.4 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 CID/6-311G**
ABC
0.69898 0.09894 0.08809

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.840
C2 0.000 1.218 0.023
C3 0.000 -1.218 0.023
H4 0.880 0.000 1.479
H5 -0.880 0.000 1.479
N6 0.000 2.181 -0.591
N7 0.000 -2.181 -0.591

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 N6 N7
C11.46681.46681.08711.08712.60892.6089
C21.46682.43602.09222.09221.14233.4540
C31.46682.43602.09222.09223.45401.1423
H41.08712.09222.09221.75953.13313.1331
H51.08712.09222.09221.75953.13313.1331
N62.60891.14233.45403.13313.13314.3620
N72.60893.45401.14233.13313.13314.3620

picture of Malononitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N6 178.668 C1 C3 N7 178.668
C2 C1 C3 112.268 C2 C1 H4 109.107
C2 C1 H5 109.107 C3 C1 H4 109.107
C3 C1 H5 109.107 H4 C1 H5 108.051
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at CID/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.043      
2 C 0.117      
3 C 0.117      
4 H 0.203      
5 H 0.203      
6 N -0.298      
7 N -0.298      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


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


<r2> (average value of r2) Å2
<r2> 119.726
(<r2>)1/2 10.942