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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: B3PW91/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 B3PW91/cc-pVDZ
 hartrees
Energy at 0K-186.746858
Energy at 298.15K 
HF Energy-186.746858
Nuclear repulsion energy89.194770
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 B3PW91/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Ag 3373 3255 0.00      
2 Ag 2170 2094 0.00      
3 Ag 1178 1137 0.00      
4 Ag 943 910 0.00      
5 Ag 300 290 0.00      
6 Au 954 921 117.75      
7 Au 253 244 0.02      
8 Bg 685 661 0.00      
9 Bu 3374 3256 6.53      
10 Bu 1775 1713 161.01      
11 Bu 1142 1102 379.41      
12 Bu 285 275 6.49      

Unscaled Zero Point Vibrational Energy (zpe) 8215.6 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 7928.1 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 B3PW91/cc-pVDZ
ABC
8.64758 0.14173 0.13945

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVDZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.261 -0.600 0.000
C2 -0.261 0.600 0.000
N3 0.261 -1.849 0.000
N4 -0.261 1.849 0.000
H5 1.223 -2.225 0.000
H6 -1.223 2.225 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.30911.24842.50391.88813.1912
C21.30912.50391.24843.19121.8881
N31.24842.50393.73391.03294.3355
N42.50391.24843.73394.33551.0329
H51.88813.19121.03294.33555.0778
H63.19121.88814.33551.03295.0778

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 156.487 C1 N3 H5 111.368
C2 C1 N3 156.487 C2 N4 H6 111.368
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.021      
2 C 0.021      
3 N -0.162      
4 N -0.162      
5 H 0.140      
6 H 0.140      


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 -19.813 -7.057 0.000
y -7.057 -22.696 0.000
z 0.000 0.000 -22.414
Traceless
 xyz
x 2.743 -7.057 0.000
y -7.057 -1.583 0.000
z 0.000 0.000 -1.160
Polar
3z2-r2-2.320
x2-y22.884
xy-7.057
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.753 -2.328 0.000
y -2.328 10.012 0.000
z 0.000 0.000 2.253


<r2> (average value of r2) Å2
<r2> 80.347
(<r2>)1/2 8.964