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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: MP2/aug-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/aug-cc-pVDZ
 hartrees
Energy at 0K-186.306036
Energy at 298.15K 
HF Energy-185.700211
Nuclear repulsion energy88.207256
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/aug-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 3418 3278 0.00 553.66 0.28 0.44
2 Ag 2011 1929 0.00 5.15 0.69 0.81
3 Ag 1147 1100 0.00 42.53 0.51 0.68
4 Ag 906 869 0.00 36.80 0.12 0.22
5 Ag 353 339 0.00 2.32 0.30 0.46
6 Au 934 896 113.34 0.00 0.75 0.86
7 Au 240 230 0.05 0.00 0.75 0.86
8 Bg 702 673 0.00 1.85 0.75 0.86
9 Bu 3418 3278 33.76 0.00 0.28 0.44
10 Bu 1682 1613 107.14 0.00 0.00 0.00
11 Bu 1095 1051 408.85 0.00 0.34 0.50
12 Bu 276 265 7.15 0.00 0.36 0.53

Unscaled Zero Point Vibrational Energy (zpe) 8091.2 cm-1
Scaled (by 0.959) Zero Point Vibrational Energy (zpe) 7759.4 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/aug-cc-pVDZ
ABC
7.57283 0.13986 0.13732

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.324 -0.583 0.000
C2 -0.324 0.583 0.000
N3 0.324 -1.850 0.000
N4 -0.324 1.850 0.000
H5 1.285 -2.223 0.000
H6 -1.285 2.223 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.33441.26662.51811.90073.2349
C21.33442.51811.26663.23491.9007
N31.26662.51813.75631.03164.3792
N42.51811.26663.75634.37921.0316
H51.90073.23491.03164.37925.1355
H63.23491.90074.37921.03165.1355

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 150.984 C1 N3 H5 111.184
C2 C1 N3 150.984 C2 N4 H6 111.184
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability