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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: MP2=FULL/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1AG
Energy calculated at MP2=FULL/6-31G**
 hartrees
Energy at 0K-186.280410
Energy at 298.15K 
HF Energy-185.676658
Nuclear repulsion energy88.871129
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/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 Ag 3487 3259 0.00 585.54 0.31 0.47
2 Ag 2080 1943 0.00 4.53 0.75 0.86
3 Ag 1178 1101 0.00 35.55 0.72 0.84
4 Ag 931 870 0.00 22.89 0.26 0.41
5 Ag 345 323 0.00 3.74 0.13 0.23
6 Au 965 902 135.55 0.00 0.00 0.00
7 Au 250 234 0.01 0.00 0.00 0.00
8 Bg 716 669 0.00 8.37 0.75 0.86
9 Bu 3489 3260 7.35 0.00 0.30 0.46
10 Bu 1729 1616 81.40 0.00 0.00 0.00
11 Bu 1123 1050 435.60 0.00 0.00 0.00
12 Bu 286 267 6.13 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 8289.8 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 7746.0 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/6-31G**
ABC
7.87420 0.14176 0.13925

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G**

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.310 -0.581 0.000
C2 -0.310 0.581 0.000
N3 0.310 -1.840 0.000
N4 -0.310 1.840 0.000
H5 1.264 -2.212 0.000
H6 -1.264 2.212 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.31781.25912.49991.88963.2068
C21.31782.49991.25913.20681.8896
N31.25912.49993.73271.02404.3478
N42.49991.25913.73274.34781.0240
H51.88963.20681.02404.34785.0962
H63.20681.88964.34781.02405.0962

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 151.909 C1 N3 H5 111.299
C2 C1 N3 151.909 C2 N4 H6 111.299
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability