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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: B1B95/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B1B95/STO-3G
 hartrees
Energy at 0K-258.606794
Energy at 298.15K 
HF Energy-258.606794
Nuclear repulsion energy158.457144
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 B1B95/STO-3G
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 3551 3135 43.48 49.57 0.12 0.22
2 A1 1475 1303 29.44 12.94 0.67 0.80
3 A1 1360 1201 0.00 10.77 0.09 0.16
4 A1 1122 991 0.37 8.27 0.22 0.36
5 A1 1088 961 4.68 8.95 0.41 0.59
6 A1 934 825 2.05 1.26 0.16 0.28
7 A2 923 815 0.00 1.91 0.75 0.86
8 A2 648 572 0.00 0.41 0.75 0.86
9 B1 864 763 21.60 1.30 0.75 0.86
10 B1 595 526 1.13 0.25 0.75 0.86
11 B2 3529 3116 16.93 37.55 0.75 0.86
12 B2 1605 1417 14.72 0.00 0.75 0.86
13 B2 1233 1089 3.86 0.72 0.75 0.86
14 B2 1062 938 0.78 0.01 0.75 0.86
15 B2 960 848 10.30 5.33 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10474.5 cm-1
Scaled (by 0.883) Zero Point Vibrational Energy (zpe) 9249.0 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 B1B95/STO-3G
ABC
0.32805 0.30637 0.15842

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.165
N2 0.000 1.178 0.366
N3 0.000 -1.178 0.366
C4 0.000 0.713 -0.910
C5 0.000 -0.713 -0.910
H6 0.000 1.400 -1.760
H7 0.000 -1.400 -1.760

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.42371.42372.19362.19363.24283.2428
N21.42372.35671.35802.28092.13753.3419
N31.42372.35672.28091.35803.34192.1375
C42.19361.35802.28091.42511.09362.2775
C52.19362.28091.35801.42512.27751.0936
H63.24282.13753.34191.09362.27752.8005
H73.24283.34192.13752.27751.09362.8005

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 104.082 O1 N3 C5 104.082
N2 O1 N3 111.719 N2 C4 C5 110.059
N2 C4 H6 120.975 N3 C5 C4 110.059
N3 C5 H7 120.975 C4 C5 H7 128.966
C5 C4 H6 128.966
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O 0.006      
2 N -0.092      
3 N -0.092      
4 C -0.034      
5 C -0.034      
6 H 0.123      
7 H 0.123      


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 -2.537 2.537
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.627 0.000 0.000
y 0.000 -28.301 0.000
z 0.000 0.000 -24.036
Traceless
 xyz
x 0.541 0.000 0.000
y 0.000 -3.470 0.000
z 0.000 0.000 2.928
Polar
3z2-r25.857
x2-y22.674
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.851 0.000 0.000
y 0.000 3.596 0.000
z 0.000 0.000 3.713


<r2> (average value of r2) Å2
<r2> 74.542
(<r2>)1/2 8.634