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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: MP2=FULL/daug-cc-pVDZ

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/daug-cc-pVDZ
 hartrees
Energy at 0K-186.319899
Energy at 298.15K 
HF Energy-185.701900
Nuclear repulsion energy88.313039
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/daug-cc-pVDZ
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 3420 3420 0.00 571.90 0.28 0.44
2 Ag 2033 2033 0.00 4.53 0.74 0.85
3 Ag 1152 1152 0.00 45.03 0.46 0.63
4 Ag 908 908 0.00 37.12 0.11 0.21
5 Ag 331 331 0.00 2.33 0.32 0.48
6 Au 938 938 111.65 0.00 0.00 0.00
7 Au 242 242 0.02 0.00 0.00 0.00
8 Bg 698 698 0.00 1.69 0.75 0.86
9 Bu 3420 3420 32.56 0.00 0.28 0.44
10 Bu 1686 1686 105.98 0.00 0.00 0.00
11 Bu 1104 1104 398.84 0.00 0.00 0.00
12 Bu 276 276 6.65 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 8103.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8103.6 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/daug-cc-pVDZ
ABC
7.82799 0.13983 0.13738

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.310 -0.588 0.000
C2 -0.310 0.588 0.000
N3 0.310 -1.853 0.000
N4 -0.310 1.853 0.000
H5 1.270 -2.227 0.000
H6 -1.270 2.227 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.32891.26532.51841.89983.2279
C21.32892.51841.26533.22791.8998
N31.26532.51843.75771.03054.3754
N42.51841.26533.75774.37541.0305
H51.89983.22791.03054.37545.1275
H63.22791.89984.37541.03055.1275

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 152.220 C1 N3 H5 111.277
C2 C1 N3 152.220 C2 N4 H6 111.277
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability