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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: B3LYPultrafine/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYPultrafine/6-31G*
 hartrees
Energy at 0K-262.047052
Energy at 298.15K 
HF Energy-262.047052
Nuclear repulsion energy163.206774
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 B3LYPultrafine/6-31G*
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 3298 3159 0.18 92.91 0.10 0.18
2 A1 1470 1408 10.52 18.12 0.38 0.55
3 A1 1355 1298 4.06 13.76 0.16 0.27
4 A1 1068 1023 0.80 5.18 0.41 0.59
5 A1 1039 995 16.77 5.89 0.27 0.42
6 A1 908 870 22.90 6.66 0.12 0.22
7 A2 899 861 0.00 2.41 0.75 0.86
8 A2 657 630 0.00 0.30 0.75 0.86
9 B1 860 824 31.39 1.15 0.75 0.86
10 B1 648 621 1.09 0.64 0.75 0.86
11 B2 3285 3147 0.01 58.84 0.75 0.86
12 B2 1598 1530 0.13 0.07 0.75 0.86
13 B2 1211 1161 4.63 0.73 0.75 0.86
14 B2 970 929 20.57 5.06 0.75 0.86
15 B2 875 838 4.77 0.32 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10069.9 cm-1
Scaled (by 0.958) Zero Point Vibrational Energy (zpe) 9646.9 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 B3LYPultrafine/6-31G*
ABC
0.34964 0.32292 0.16788

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.127
N2 0.000 1.135 0.355
N3 0.000 -1.135 0.355
C4 0.000 0.711 -0.881
C5 0.000 -0.711 -0.881
H6 0.000 1.407 -1.709
H7 0.000 -1.407 -1.709

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.37231.37232.13052.13053.16543.1654
N21.37232.26971.30722.22222.08193.2742
N31.37232.26972.22221.30723.27422.0819
C42.13051.30722.22221.42271.08082.2739
C52.13052.22221.30721.42272.27391.0808
H63.16542.08193.27421.08082.27392.8134
H73.16543.27422.08192.27391.08082.8134

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.306 O1 N3 C5 105.306
N2 O1 N3 111.580 N2 C4 C5 108.903
N2 C4 H6 121.053 N3 C5 C4 108.903
N3 C5 H7 121.053 C4 C5 H7 130.044
C5 C4 H6 130.044
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.198      
2 N -0.104      
3 N -0.104      
4 C 0.015      
5 C 0.015      
6 H 0.188      
7 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 -3.353 3.353
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.027 0.000 0.000
y 0.000 -29.427 0.000
z 0.000 0.000 -25.114
Traceless
 xyz
x -0.757 0.000 0.000
y 0.000 -2.857 0.000
z 0.000 0.000 3.614
Polar
3z2-r27.227
x2-y21.400
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.295 0.000 0.000
y 0.000 5.593 0.000
z 0.000 0.000 5.675


<r2> (average value of r2) Å2
<r2> 72.339
(<r2>)1/2 8.505