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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: MP2=FULL/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-186.503437
Energy at 298.15K 
HF Energy-185.744615
Nuclear repulsion energy89.587818
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/cc-pVTZ
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 3444 3270 0.00 606.16 0.29 0.45
2 Ag 2177 2067 0.00 4.49 0.75 0.86
3 Ag 1158 1099 0.00 28.68 0.62 0.76
4 Ag 928 881 0.00 25.33 0.20 0.33
5 Ag 300 284 0.00 2.87 0.45 0.62
6 Au 968 919 118.62 0.00 0.00 0.00
7 Au 262 248 0.02 0.00 0.75 0.86
8 Bg 681 647 0.00 1.87 0.75 0.86
9 Bu 3445 3271 21.30 0.00 0.29 0.45
10 Bu 1721 1634 93.59 0.00 0.00 0.00
11 Bu 1132 1075 374.03 0.00 0.55 0.71
12 Bu 293 278 7.46 0.00 0.45 0.62

Unscaled Zero Point Vibrational Energy (zpe) 8253.8 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 7836.2 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/cc-pVTZ
ABC
9.49197 0.14208 0.13999

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.216 -0.607 0.000
C2 -0.216 0.607 0.000
N3 0.216 -1.855 0.000
N4 -0.216 1.855 0.000
H5 1.166 -2.231 0.000
H6 -1.166 2.231 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.28901.24792.49981.88123.1568
C21.28902.49981.24793.15681.8812
N31.24792.49983.73521.02114.3135
N42.49981.24793.73524.31351.0211
H51.88123.15681.02114.31355.0346
H63.15681.88124.31351.02115.0346

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 160.380 C1 N3 H5 111.613
C2 C1 N3 160.380 C2 N4 H6 111.613
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability