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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: QCISD(T)=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 QCISD(T)=FULL/6-31G*
 hartrees
Energy at 0K-186.309910
Energy at 298.15K 
HF Energy-185.665701
Nuclear repulsion energy88.525161
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 QCISD(T)=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 3372 3372        
2 Ag 2000 2000        
3 Ag 1205 1205        
4 Ag 914 914        
5 Ag 358 358        
6 Au 938 938        
7 Au 241 241        
8 Bg 712 712        
9 Bu 3373 3373        
10 Bu 1715 1715        
11 Bu 1148 1148        
12 Bu 286 286        

Unscaled Zero Point Vibrational Energy (zpe) 8129.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8129.6 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 QCISD(T)=FULL/6-31G*
ABC
7.12688 0.14182 0.13905

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.177 -0.644 0.000
C2 -0.177 0.644 0.000
N3 -0.177 -1.855 0.000
N4 0.177 1.855 0.000
H5 0.642 -2.483 0.000
H6 -0.642 2.483 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.33521.26212.49911.89703.2321
C21.33522.49911.26213.23211.8970
N31.26212.49913.72741.03144.3631
N42.49911.26213.72744.36311.0314
H51.89703.23211.03144.36315.1291
H63.23211.89704.36311.03145.1291

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 148.368 C1 N3 H5 111.213
C2 C1 N3 148.368 C2 N4 H6 111.213
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability