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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: B1B95/6-31G(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 B1B95/6-31G(2df,p)
 hartrees
Energy at 0K-261.974477
Energy at 298.15K 
HF Energy-261.974477
Nuclear repulsion energy165.076064
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 B1B95/6-31G(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 3313 3173 0.28 87.27 0.10 0.18
2 A1 1490 1427 10.14 16.73 0.29 0.45
3 A1 1374 1316 4.72 13.78 0.13 0.22
4 A1 1084 1038 23.89 6.27 0.40 0.57
5 A1 1076 1031 1.34 7.21 0.15 0.27
6 A1 941 901 16.16 3.82 0.10 0.18
7 A2 925 885 0.00 1.41 0.75 0.86
8 A2 670 642 0.00 0.32 0.75 0.86
9 B1 877 840 29.80 0.76 0.75 0.86
10 B1 672 643 1.58 0.50 0.75 0.86
11 B2 3298 3158 0.10 55.01 0.75 0.86
12 B2 1619 1550 0.10 0.09 0.75 0.86
13 B2 1211 1160 3.99 0.86 0.75 0.86
14 B2 982 940 6.59 3.84 0.75 0.86
15 B2 957 917 21.40 0.73 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10244.0 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 9810.7 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 B1B95/6-31G(2df,p)
ABC
0.35602 0.33171 0.17172

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.111
N2 0.000 1.116 0.358
N3 0.000 -1.116 0.358
C4 0.000 0.706 -0.876
C5 0.000 -0.706 -0.876
H6 0.000 1.405 -1.694
H7 0.000 -1.405 -1.694

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.34651.34652.10852.10853.13733.1373
N21.34652.23181.29952.20012.07173.2504
N31.34652.23182.20011.29953.25042.0717
C42.10851.29952.20011.41221.07632.2644
C52.10852.20011.29951.41222.26441.0763
H63.13732.07173.25041.07632.26442.8107
H73.13733.25042.07172.26441.07632.8107

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.648 O1 N3 C5 105.648
N2 O1 N3 111.937 N2 C4 C5 108.383
N2 C4 H6 121.099 N3 C5 C4 108.383
N3 C5 H7 121.099 C4 C5 H7 130.517
C5 C4 H6 130.517
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.168      
2 N -0.047      
3 N -0.047      
4 C -0.036      
5 C -0.036      
6 H 0.167      
7 H 0.167      


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 -3.159 3.159
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.799 0.000 0.000
y 0.000 -29.081 0.000
z 0.000 0.000 -24.652
Traceless
 xyz
x -0.933 0.000 0.000
y 0.000 -2.855 0.000
z 0.000 0.000 3.788
Polar
3z2-r27.575
x2-y21.281
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.755 0.000 0.000
y 0.000 5.701 0.000
z 0.000 0.000 5.740


<r2> (average value of r2) Å2
<r2> 70.945
(<r2>)1/2 8.423