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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: HF/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1AG
Energy calculated at HF/cc-pVTZ
 hartrees
Energy at 0K-185.748183
Energy at 298.15K 
HF Energy-185.748183
Nuclear repulsion energy90.965868
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 HF/cc-pVTZ
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 3658 3329 0.00 589.33 0.30 0.46
2 Ag 2444 2225 0.00 88.52 0.32 0.49
3 Ag 1275 1160 0.00 10.63 0.73 0.85
4 Ag 998 908 0.00 52.00 0.23 0.37
5 Ag 330 300 0.00 6.60 0.64 0.78
6 Au 1051 956 152.26 0.00 0.00 0.00
7 Au 278 253 0.69 0.00 0.00 0.00
8 Bg 701 638 0.00 6.37 0.75 0.86
9 Bu 3659 3330 43.64 0.00 0.00 0.00
10 Bu 1885 1715 330.72 0.00 0.00 0.00
11 Bu 1273 1158 357.58 0.00 0.00 0.00
12 Bu 321 292 13.03 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 8936.3 cm-1
Scaled (by 0.9101) Zero Point Vibrational Energy (zpe) 8132.9 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 HF/cc-pVTZ
ABC
11.01132 0.14487 0.14299

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.111 -0.626 0.000
C2 -0.111 0.626 0.000
N3 0.111 -1.848 0.000
N4 -0.111 1.848 0.000
H5 1.040 -2.235 0.000
H6 -1.040 2.235 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.27141.22172.48341.85803.0841
C21.27142.48341.22173.08411.8580
N31.22172.48343.70181.00624.2420
N42.48341.22173.70184.24201.0062
H51.85803.08411.00624.24204.9306
H63.08411.85804.24201.00624.9306

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 169.907 C1 N3 H5 112.661
C2 C1 N3 169.907 C2 N4 H6 112.661
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.006      
2 C 0.006      
3 N -0.194      
4 N -0.194      
5 H 0.188      
6 H 0.188      


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 -20.997 -7.681 0.000
y -7.681 -24.317 0.000
z 0.000 0.000 -23.031
Traceless
 xyz
x 2.677 -7.681 0.000
y -7.681 -2.303 0.000
z 0.000 0.000 -0.373
Polar
3z2-r2-0.747
x2-y23.320
xy-7.681
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.627 -1.406 0.000
y -1.406 10.780 0.000
z 0.000 0.000 2.963


<r2> (average value of r2) Å2
<r2> 79.195
(<r2>)1/2 8.899