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All results from a given calculation for C3H2N2 (Malononitrile)

using model chemistry: MP3=FULL/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP3=FULL/6-31G*
 hartrees
Energy at 0K-224.352492
Energy at 298.15K-224.354163
HF Energy-223.640763
Nuclear repulsion energy124.598833
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 MP3=FULL/6-31G*
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 3131 2938 0.59      
2 A1 2475 2322 0.14      
3 A1 1514 1420 13.67      
4 A1 931 873 7.08      
5 A1 592 556 0.38      
6 A1 147 138 10.96      
7 A2 1282 1203 0.00      
8 A2 368 345 0.00      
9 B1 3178 2982 2.40      
10 B1 975 914 0.41      
11 B1 340 319 0.49      
12 B2 2471 2318 0.13      
13 B2 1396 1309 2.57      
14 B2 1024 961 9.70      
15 B2 365 343 0.78      

Unscaled Zero Point Vibrational Energy (zpe) 10093.5 cm-1
Scaled (by 0.9383) Zero Point Vibrational Energy (zpe) 9470.7 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 MP3=FULL/6-31G*
ABC
0.68826 0.09780 0.08702

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.846
C2 0.000 1.220 0.025
C3 0.000 -1.220 0.025
H4 0.884 0.000 1.491
H5 -0.884 0.000 1.491
N6 0.000 2.196 -0.597
N7 0.000 -2.196 -0.597

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 N6 N7
C11.47101.47101.09411.09412.62752.6275
C21.47102.44072.10232.10231.15673.4724
C31.47102.44072.10232.10233.47241.1567
H41.09412.10232.10231.76803.15603.1560
H51.09412.10232.10231.76803.15603.1560
N62.62751.15673.47243.15603.15604.3920
N72.62753.47241.15673.15603.15604.3920

picture of Malononitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N6 178.551 C1 C3 N7 178.551
C2 C1 C3 112.120 C2 C1 H4 109.205
C2 C1 H5 109.205 C3 C1 H4 109.205
C3 C1 H5 109.205 H4 C1 H5 107.801
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability