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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: BLYP/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1AG
Energy calculated at BLYP/6-31G(2df,p)
 hartrees
Energy at 0K-186.780026
Energy at 298.15K 
HF Energy-186.780026
Nuclear repulsion energy88.840474
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 BLYP/6-31G(2df,p)
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 3243 3225 0.00 820.97 0.31 0.48
2 Ag 2057 2046 0.00 18.69 0.38 0.56
3 Ag 1148 1141 0.00 34.81 0.67 0.80
4 Ag 910 905 0.00 34.37 0.25 0.40
5 Ag 323 321 0.00 1.60 0.42 0.59
6 Au 933 928 106.52 0.00 0.00 0.00
7 Au 254 252 0.02 0.00 0.00 0.00
8 Bg 680 677 0.00 9.55 0.75 0.86
9 Bu 3242 3224 5.63 0.00 0.00 0.00
10 Bu 1698 1689 105.66 0.00 0.00 0.00
11 Bu 1110 1104 367.50 0.00 0.00 0.00
12 Bu 281 280 4.67 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 7940.0 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 7896.3 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 BLYP/6-31G(2df,p)
ABC
8.53700 0.14093 0.13864

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31G(2df,p)

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.273 -0.595 0.000
C2 -0.273 0.595 0.000
N3 0.273 -1.851 0.000
N4 -0.273 1.851 0.000
H5 1.231 -2.247 0.000
H6 -1.231 2.247 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.30881.25662.50641.90993.2152
C21.30882.50641.25663.21521.9099
N31.25662.50643.74291.03644.3657
N42.50641.25663.74294.36571.0364
H51.90993.21521.03644.36575.1242
H63.21521.90994.36571.03645.1242

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 155.376 C1 N3 H5 112.447
C2 C1 N3 155.376 C2 N4 H6 112.447
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.180      
2 C 0.180      
3 N -0.424      
4 N -0.424      
5 H 0.243      
6 H 0.243      


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 -19.828 -6.658 0.000
y -6.658 -23.005 0.000
z 0.000 0.000 -22.349
Traceless
 xyz
x 2.849 -6.658 0.000
y -6.658 -1.916 0.000
z 0.000 0.000 -0.933
Polar
3z2-r2-1.866
x2-y23.177
xy-6.658
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.075 -2.427 0.000
y -2.427 10.382 0.000
z 0.000 0.000 2.536


<r2> (average value of r2) Å2
<r2> 80.871
(<r2>)1/2 8.993