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All results from a given calculation for C4N2 (2-Butynedinitrile)

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 D*H 1Σg
Energy calculated at MP3/6-31+G**
 hartrees
Energy at 0K-261.067872
Energy at 298.15K 
HF Energy-260.268063
Nuclear repulsion energy142.998733
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**
B
0.04411

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

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.595
C2 0.000 0.000 -0.595
C3 0.000 0.000 1.973
C4 0.000 0.000 -1.973
N5 0.000 0.000 3.134
N6 0.000 0.000 -3.134

Atom - Atom Distances (Å)
  C1 C2 C3 C4 N5 N6
C11.18951.37822.56772.53883.7283
C21.18952.56771.37823.72832.5388
C31.37822.56773.94581.16075.1065
C42.56771.37823.94585.10651.1607
N52.53883.72831.16075.10656.2672
N63.72832.53885.10651.16076.2672

picture of 2-Butynedinitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 180.000 C1 C3 N5 180.000
C2 C1 C3 180.000 C2 C4 N6 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability