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All results from a given calculation for C2H2N2O (Furazan)

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

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HF/6-31G(2df,p)
 hartrees
Energy at 0K-260.573155
Energy at 298.15K 
HF Energy-260.573155
Nuclear repulsion energy167.017749
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/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 A1 3439 3114 0.00 81.65 0.10 0.17
2 A1 1652 1496 6.99 26.06 0.16 0.28
3 A1 1479 1339 6.95 12.51 0.25 0.40
4 A1 1167 1057 42.94 6.55 0.30 0.46
5 A1 1113 1008 0.15 2.11 0.14 0.25
6 A1 1010 915 31.80 3.85 0.09 0.17
7 A2 1034 936 0.00 2.08 0.75 0.86
8 A2 717 649 0.00 0.13 0.75 0.86
9 B1 979 886 28.93 0.21 0.75 0.86
10 B1 702 636 1.71 0.96 0.75 0.86
11 B2 3425 3101 0.34 53.07 0.75 0.86
12 B2 1804 1634 0.20 0.78 0.75 0.86
13 B2 1339 1212 2.21 1.16 0.75 0.86
14 B2 1140 1033 0.35 0.54 0.75 0.86
15 B2 1052 953 33.10 4.19 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11025.8 cm-1
Scaled (by 0.9055) Zero Point Vibrational Energy (zpe) 9983.9 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/6-31G(2df,p)
ABC
0.36574 0.33740 0.17550

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.098
N2 0.000 1.097 0.351
N3 0.000 -1.097 0.351
C4 0.000 0.714 -0.863
C5 0.000 -0.714 -0.863
H6 0.000 1.408 -1.675
H7 0.000 -1.408 -1.675

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.32741.32742.08662.08663.11033.1103
N21.32742.19471.27272.18052.05003.2224
N31.32742.19472.18051.27273.22242.0500
C42.08661.27272.18051.42841.06872.2728
C52.08662.18051.27271.42842.27281.0687
H63.11032.05003.22241.06872.27282.8167
H73.11033.22242.05002.27281.06872.8167

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 106.721 O1 N3 C5 106.721
N2 O1 N3 111.521 N2 C4 C5 107.519
N2 C4 H6 121.976 N3 C5 C4 107.519
N3 C5 H7 121.976 C4 C5 H7 130.505
C5 C4 H6 130.505
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.328      
2 N 0.053      
3 N 0.053      
4 C -0.089      
5 C -0.089      
6 H 0.200      
7 H 0.200      


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 -3.638 3.638
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.187 0.000 0.000
y 0.000 -29.469 0.000
z 0.000 0.000 -24.906
Traceless
 xyz
x -1.000 0.000 0.000
y 0.000 -2.922 0.000
z 0.000 0.000 3.922
Polar
3z2-r27.844
x2-y21.282
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.712 0.000 0.000
y 0.000 5.191 0.000
z 0.000 0.000 5.655


<r2> (average value of r2) Å2
<r2> 70.046
(<r2>)1/2 8.369