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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: B3LYP/CEP-121G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYP/CEP-121G*
 hartrees
Energy at 0K-48.202092
Energy at 298.15K 
HF Energy-48.202092
Nuclear repulsion energy84.072481
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 B3LYP/CEP-121G*
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 3258 3158 0.16 106.25 0.11 0.20
2 A1 1431 1388 12.94 22.23 0.31 0.47
3 A1 1326 1285 3.48 17.74 0.09 0.16
4 A1 1038 1006 2.95 4.34 0.43 0.60
5 A1 1023 991 19.05 8.17 0.20 0.34
6 A1 888 861 23.93 7.14 0.13 0.23
7 A2 877 850 0.00 1.89 0.75 0.86
8 A2 641 621 0.00 0.07 0.75 0.86
9 B1 848 822 46.52 0.25 0.75 0.86
10 B1 626 607 0.97 0.40 0.75 0.86
11 B2 3245 3146 0.11 63.66 0.75 0.86
12 B2 1561 1513 0.00 0.08 0.75 0.86
13 B2 1190 1153 5.62 1.04 0.75 0.86
14 B2 952 923 20.44 5.06 0.75 0.86
15 B2 874 847 3.05 0.53 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9888.5 cm-1
Scaled (by 0.9694) Zero Point Vibrational Energy (zpe) 9585.9 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 B3LYP/CEP-121G*
ABC
0.34537 0.31733 0.16538

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.136
N2 0.000 1.145 0.356
N3 0.000 -1.145 0.356
C4 0.000 0.718 -0.886
C5 0.000 -0.718 -0.886
H6 0.000 1.416 -1.716
H7 0.000 -1.416 -1.716

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.38541.38542.14622.14623.18383.1838
N21.38542.28961.31342.23912.08903.2935
N31.38542.28962.23911.31343.29352.0890
C42.14621.31342.23911.43631.08362.2895
C52.14622.23911.31341.43632.28951.0836
H63.18382.08903.29351.08362.28952.8317
H73.18383.29352.08902.28951.08362.8317

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.322 O1 N3 C5 105.322
N2 O1 N3 111.443 N2 C4 C5 108.956
N2 C4 H6 120.966 N3 C5 C4 108.956
N3 C5 H7 120.966 C4 C5 H7 130.078
C5 C4 H6 130.078
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.132      
2 N 0.068      
3 N 0.068      
4 C -0.224      
5 C -0.224      
6 H 0.222      
7 H 0.222      


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 -3.499 3.499
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.458 0.000 0.000
y 0.000 -29.771 0.000
z 0.000 0.000 -25.216
Traceless
 xyz
x -0.965 0.000 0.000
y 0.000 -2.935 0.000
z 0.000 0.000 3.899
Polar
3z2-r27.798
x2-y21.313
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.051 0.000 0.000
y 0.000 6.138 0.000
z 0.000 0.000 6.189


<r2> (average value of r2) Å2
<r2> 59.795
(<r2>)1/2 7.733