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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: mPW1PW91/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1AG
Energy calculated at mPW1PW91/6-311+G(3df,2p)
 hartrees
Energy at 0K-186.822468
Energy at 298.15K 
HF Energy-186.822468
Nuclear repulsion energy90.012301
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 mPW1PW91/6-311+G(3df,2p)
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 3441 3441 0.00 649.01 0.31 0.48
2 Ag 2213 2213 0.00 30.60 0.38 0.56
3 Ag 1170 1170 0.00 25.64 0.56 0.72
4 Ag 947 947 0.00 50.96 0.16 0.28
5 Ag 301 301 0.00 3.37 0.51 0.67
6 Au 970 970 120.69 0.00 0.00 0.00
7 Au 255 255 0.01 0.00 0.00 0.00
8 Bg 676 676 0.00 3.46 0.75 0.86
9 Bu 3441 3441 15.22 0.00 0.00 0.00
10 Bu 1781 1781 196.51 0.00 0.00 0.00
11 Bu 1142 1142 358.57 0.00 0.00 0.00
12 Bu 285 285 6.85 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 8310.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8310.6 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 mPW1PW91/6-311+G(3df,2p)
ABC
9.80873 0.14325 0.14119

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311+G(3df,2p)

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.211 -0.609 0.000
C2 -0.211 0.609 0.000
N3 0.211 -1.845 0.000
N4 -0.211 1.845 0.000
H5 1.152 -2.244 0.000
H6 -1.152 2.244 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.28851.23672.49001.88663.1615
C21.28852.49001.23673.16151.8866
N31.23672.49003.71471.02154.3105
N42.49001.23673.71474.31051.0215
H51.88663.16151.02154.31055.0446
H63.16151.88664.31051.02155.0446

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 160.866 C1 N3 H5 112.977
C2 C1 N3 160.866 C2 N4 H6 112.977
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.719      
2 C 0.719      
3 N -0.917      
4 N -0.917      
5 H 0.198      
6 H 0.198      


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 -20.512 -7.353 0.000
y -7.353 -23.666 0.000
z 0.000 0.000 -23.001
Traceless
 xyz
x 2.821 -7.353 0.000
y -7.353 -1.909 0.000
z 0.000 0.000 -0.912
Polar
3z2-r2-1.824
x2-y23.153
xy-7.353
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.666 -1.780 0.000
y -1.780 11.387 0.000
z 0.000 0.000 3.630


<r2> (average value of r2) Å2
<r2> 79.987
(<r2>)1/2 8.944