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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: HF/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1AG
Energy calculated at HF/TZVP
 hartrees
Energy at 0K-185.739431
Energy at 298.15K 
HF Energy-185.739431
Nuclear repulsion energy91.004739
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 HF/TZVP
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 3662 3327 0.00 594.03 0.32 0.48
2 Ag 2425 2204 0.00 100.72 0.37 0.54
3 Ag 1262 1147 0.00 17.39 0.69 0.82
4 Ag 1003 911 0.00 56.12 0.24 0.39
5 Ag 358 325 0.00 11.22 0.43 0.61
6 Au 1054 958 166.81 0.00 0.00 0.00
7 Au 274 249 0.32 0.00 0.00 0.00
8 Bg 702 637 0.00 11.75 0.75 0.86
9 Bu 3663 3328 47.90 0.00 0.00 0.00
10 Bu 1891 1718 350.26 0.00 0.00 0.00
11 Bu 1249 1135 367.54 0.00 0.00 0.00
12 Bu 312 283 13.24 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 8926.6 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 8110.7 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 HF/TZVP
ABC
10.79813 0.14536 0.14343

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/TZVP

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.148 -0.619 0.000
C2 -0.148 0.619 0.000
N3 0.148 -1.840 0.000
N4 -0.148 1.840 0.000
H5 1.076 -2.231 0.000
H6 -1.076 2.231 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.27291.22112.47701.86013.1016
C21.27292.47701.22113.10161.8601
N31.22112.47703.69221.00714.2510
N42.47701.22113.69224.25101.0071
H51.86013.10161.00714.25104.9537
H63.10161.86014.25101.00714.9537

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 166.594 C1 N3 H5 112.836
C2 C1 N3 166.594 C2 N4 H6 112.836
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.001      
2 C -0.001      
3 N -0.212      
4 N -0.212      
5 H 0.212      
6 H 0.212      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.853 -8.131 0.000
y -8.131 -24.841 0.000
z 0.000 0.000 -23.131
Traceless
 xyz
x 3.133 -8.131 0.000
y -8.131 -2.849 0.000
z 0.000 0.000 -0.284
Polar
3z2-r2-0.569
x2-y23.988
xy-8.131
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.509 -1.636 0.000
y -1.636 11.005 0.000
z 0.000 0.000 2.628


<r2> (average value of r2) Å2
<r2> 79.173
(<r2>)1/2 8.898