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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: mPW1PW91/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 mPW1PW91/aug-cc-pVDZ
 hartrees
Energy at 0K-186.784637
Energy at 298.15K 
HF Energy-186.784637
Nuclear repulsion energy89.420548
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/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 3431 3288 0.00 676.06 0.30 0.46
2 Ag 2185 2094 0.00 32.67 0.38 0.55
3 Ag 1176 1127 0.00 27.07 0.55 0.71
4 Ag 945 905 0.00 51.02 0.16 0.27
5 Ag 320 307 0.00 3.05 0.56 0.72
6 Au 960 920 120.61 0.00 0.00 0.00
7 Au 253 242 0.00 0.00 0.00 0.00
8 Bg 685 656 0.00 3.86 0.75 0.86
9 Bu 3431 3288 15.11 0.00 0.30 0.46
10 Bu 1778 1703 197.22 0.00 0.00 0.00
11 Bu 1143 1095 367.19 0.00 0.00 0.00
12 Bu 283 272 6.18 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 8294.6 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 7948.7 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 mPW1PW91/aug-cc-pVDZ
ABC
9.04603 0.14204 0.13984

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/aug-cc-pVDZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.249 -0.603 0.000
C2 -0.249 0.603 0.000
N3 0.249 -1.848 0.000
N4 -0.249 1.848 0.000
H5 1.199 -2.237 0.000
H6 -1.199 2.237 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.30441.24512.50061.89013.1876
C21.30442.50061.24513.18761.8901
N31.24512.50063.72891.02614.3338
N42.50061.24513.72894.33381.0261
H51.89013.18761.02614.33385.0759
H63.18761.89014.33381.02615.0759

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 157.509 C1 N3 H5 112.293
C2 C1 N3 157.509 C2 N4 H6 112.293
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.195      
2 C 0.195      
3 N -0.290      
4 N -0.290      
5 H 0.094      
6 H 0.094      


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 -20.410 -7.304 0.000
y -7.304 -23.869 0.000
z 0.000 0.000 -23.038
Traceless
 xyz
x 3.044 -7.304 0.000
y -7.304 -2.145 0.000
z 0.000 0.000 -0.899
Polar
3z2-r2-1.797
x2-y23.459
xy-7.304
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.912 -2.017 0.000
y -2.017 11.474 0.000
z 0.000 0.000 3.694


<r2> (average value of r2) Å2
<r2> 80.670
(<r2>)1/2 8.982