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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: mPW1PW91/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1AG
Energy calculated at mPW1PW91/6-311G**
 hartrees
Energy at 0K-186.803319
Energy at 298.15K 
HF Energy-186.803319
Nuclear repulsion energy89.860995
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 mPW1PW91/6-311G**
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 3429 3281 0.00 740.30 0.31 0.48
2 Ag 2225 2128 0.00 28.09 0.38 0.55
3 Ag 1181 1130 0.00 22.09 0.75 0.86
4 Ag 947 906 0.00 36.82 0.27 0.42
5 Ag 286 274 0.00 4.33 0.43 0.60
6 Au 975 933 134.59 0.00 0.00 0.00
7 Au 257 246 0.00 0.00 0.00 0.00
8 Bg 679 650 0.00 7.45 0.75 0.86
9 Bu 3430 3281 7.90 0.00 0.00 0.00
10 Bu 1784 1706 173.89 0.00 0.00 0.00
11 Bu 1154 1104 374.15 0.00 0.00 0.00
12 Bu 288 276 7.93 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 8317.5 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 7957.3 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 mPW1PW91/6-311G**
ABC
9.62901 0.14286 0.14077

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311G**

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.213 -0.609 0.000
C2 -0.213 0.609 0.000
N3 0.213 -1.849 0.000
N4 -0.213 1.849 0.000
H5 1.160 -2.235 0.000
H6 -1.160 2.235 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.29041.23952.49431.88213.1585
C21.29042.49431.23953.15851.8821
N31.23952.49433.72171.02344.3086
N42.49431.23953.72174.30861.0234
H51.88213.15851.02344.30865.0370
H63.15851.88214.30861.02345.0370

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 160.756 C1 N3 H5 112.205
C2 C1 N3 160.756 C2 N4 H6 112.205
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.169      
2 C 0.169      
3 N -0.382      
4 N -0.382      
5 H 0.213      
6 H 0.213      


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 -20.121 -7.470 0.000
y -7.470 -23.347 0.000
z 0.000 0.000 -22.594
Traceless
 xyz
x 2.849 -7.470 0.000
y -7.470 -1.989 0.000
z 0.000 0.000 -0.860
Polar
3z2-r2-1.719
x2-y23.226
xy-7.470
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.635 -2.012 0.000
y -2.012 10.317 0.000
z 0.000 0.000 2.365


<r2> (average value of r2) Å2
<r2> 79.913
(<r2>)1/2 8.939