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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: PBE1PBE/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 PBE1PBE/6-31G
 hartrees
Energy at 0K-186.517564
Energy at 298.15K 
HF Energy-186.517564
Nuclear repulsion energy89.023819
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 PBE1PBE/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 3399 3249 0.00 856.24 0.32 0.48
2 Ag 2214 2116 0.00 25.52 0.37 0.54
3 Ag 1165 1114 0.00 33.24 0.70 0.82
4 Ag 953 911 0.00 36.30 0.30 0.46
5 Ag 375 358 0.00 4.24 0.37 0.55
6 Au 978 935 174.53 0.00 0.00 0.00
7 Au 256 245 0.23 0.00 0.00 0.00
8 Bg 707 676 0.00 16.22 0.75 0.86
9 Bu 3401 3251 0.25 0.00 0.00 0.00
10 Bu 1785 1706 136.12 0.00 0.00 0.00
11 Bu 1089 1041 541.37 0.00 0.00 0.00
12 Bu 285 272 10.93 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 8303.1 cm-1
Scaled (by 0.9559) Zero Point Vibrational Energy (zpe) 7936.9 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 PBE1PBE/6-31G
ABC
9.57596 0.14065 0.13861

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.252 -0.600 0.000
C2 -0.252 0.600 0.000
N3 0.252 -1.853 0.000
N4 -0.252 1.853 0.000
H5 1.174 -2.308 0.000
H6 -1.174 2.308 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.30181.25272.50431.94103.2391
C21.30182.50431.25273.23911.9410
N31.25272.50433.73991.02834.3986
N42.50431.25273.73994.39861.0283
H51.94103.23911.02834.39865.1792
H63.23911.94104.39861.02835.1792

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 157.244 C1 N3 H5 116.284
C2 C1 N3 157.244 C2 N4 H6 116.284
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.194      
2 C 0.194      
3 N -0.516      
4 N -0.516      
5 H 0.322      
6 H 0.322      


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 -20.036 -8.606 0.000
y -8.606 -22.968 0.000
z 0.000 0.000 -22.570
Traceless
 xyz
x 2.733 -8.606 0.000
y -8.606 -1.665 0.000
z 0.000 0.000 -1.068
Polar
3z2-r2-2.136
x2-y22.932
xy-8.606
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.391 -2.348 0.000
y -2.348 10.353 0.000
z 0.000 0.000 1.759


<r2> (average value of r2) Å2
<r2> 81.102
(<r2>)1/2 9.006