return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C4H4N2 (Succinonitrile)

using model chemistry: MP3/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at MP3/6-31+G**
 hartrees
Energy at 0K-263.548949
Energy at 298.15K 
HF Energy-262.693308
Nuclear repulsion energy178.727088
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 MP3/6-31+G**
Rotational Constants (cm-1) from geometry optimized at MP3/6-31+G**
ABC
0.85396 0.04928 0.04741

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.426 0.640 0.000
C2 -0.426 -0.640 0.000
C3 -0.426 1.839 0.000
C4 0.426 -1.839 0.000
N5 1.120 -2.767 0.000
N6 -1.120 2.767 0.000
H7 1.068 0.666 0.879
H8 1.068 0.666 -0.879
H9 -1.068 -0.666 0.879
H10 -1.068 -0.666 -0.879

Atom - Atom Distances (Å)
  C1 C2 C3 C4 N5 N6 H7 H8 H9 H10
C11.53881.47092.47953.47772.62951.08831.08832.17102.1710
C21.53882.47951.47092.62953.47772.17102.17101.08831.0883
C31.47092.47953.77574.85901.15872.09292.09292.73152.7315
C42.47951.47093.77571.15874.85902.73152.73152.09292.0929
N53.47772.62954.85901.15875.97073.54483.54483.15803.1580
N62.62953.47771.15874.85905.97073.15803.15803.54483.5448
H71.08832.17102.09292.73153.54483.15801.75712.51803.0705
H81.08832.17102.09292.73153.54483.15801.75713.07052.5180
H92.17101.08832.73152.09293.15803.54482.51803.07051.7571
H102.17101.08832.73152.09293.15803.54483.07052.51801.7571

picture of Succinonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 110.920 C1 C2 H9 110.280
C1 C2 H10 110.280 C1 C3 N6 178.668
C2 C1 C3 110.920 C2 C1 H7 110.280
C2 C1 H8 110.280 C2 C4 N5 178.668
C3 C1 H7 108.810 C3 C1 H8 108.810
C4 C2 H9 108.810 C4 C2 H10 108.810
H7 C1 H8 107.661 H9 C2 H10 107.661
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability