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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: CCSD/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 CCSD/aug-cc-pVDZ
 hartrees
Energy at 0K-186.324061
Energy at 298.15K 
HF Energy-185.702176
Nuclear repulsion energy88.432990
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 CCSD/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 3426 3300 0.00      
2 Ag 2073 1997 0.00      
3 Ag 1186 1143 0.00      
4 Ag 914 881 0.00      
5 Ag 327 316 0.00      
6 Au 943 909 115.19      
7 Au 239 230 0.01      
8 Bg 682 657 0.00      
9 Bu 3426 3301 16.19      
10 Bu 1719 1657 155.56      
11 Bu 1154 1111 387.42      
12 Bu 277 267 5.38      

Unscaled Zero Point Vibrational Energy (zpe) 8182.9 cm-1
Scaled (by 0.9634) Zero Point Vibrational Energy (zpe) 7883.4 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 CCSD/aug-cc-pVDZ
ABC
7.89389 0.14000 0.13756

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.305 -0.592 0.000
C2 -0.305 0.592 0.000
N3 0.305 -1.852 0.000
N4 -0.305 1.852 0.000
H5 1.267 -2.221 0.000
H6 -1.267 2.221 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.33241.26042.51971.89163.2227
C21.33242.51971.26043.22271.8916
N31.26042.51973.75491.03014.3663
N42.51971.26043.75494.36631.0301
H51.89163.22271.03014.36635.1139
H63.22271.89164.36631.03015.1139

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 152.725 C1 N3 H5 110.950
C2 C1 N3 152.725 C2 N4 H6 110.950
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability