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All results from a given calculation for C3H2N2 (Malononitrile)

using model chemistry: MP2=FULL/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2=FULL/cc-pVTZ
 hartrees
Energy at 0K-224.626431
Energy at 298.15K-224.628085
HF Energy-223.712034
Nuclear repulsion energy124.856588
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 MP2=FULL/cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3114 2956 0.84      
2 A1 2231 2118 0.93      
3 A1 1471 1397 12.49      
4 A1 912 866 4.21      
5 A1 579 550 0.23      
6 A1 144 136 10.45      
7 A2 1267 1203 0.00      
8 A2 363 345 0.00      
9 B1 3153 2993 4.74      
10 B1 936 889 0.15      
11 B1 333 316 0.33      
12 B2 2237 2123 3.38      
13 B2 1354 1285 2.96      
14 B2 1008 957 3.61      
15 B2 362 344 0.46      

Unscaled Zero Point Vibrational Energy (zpe) 9731.9 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 9239.4 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 MP2=FULL/cc-pVTZ
ABC
0.69318 0.09845 0.08760

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.842
C2 0.000 1.207 0.027
C3 0.000 -1.207 0.027
H4 0.879 0.000 1.478
H5 -0.879 0.000 1.478
N6 0.000 2.185 -0.596
N7 0.000 -2.185 -0.596

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 N6 N7
C11.45621.45621.08531.08532.61572.6157
C21.45622.41412.08212.08211.15983.4491
C31.45622.41412.08212.08213.44911.1598
H41.08532.08212.08211.75833.13843.1384
H51.08532.08212.08211.75833.13843.1384
N62.61571.15983.44913.13843.13844.3706
N72.61573.44911.15983.13843.13844.3706

picture of Malononitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N6 178.478 C1 C3 N7 178.478
C2 C1 C3 111.975 C2 C1 H4 109.149
C2 C1 H5 109.149 C3 C1 H4 109.149
C3 C1 H5 109.149 H4 C1 H5 108.193
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability