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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: TPSSh/cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at TPSSh/cc-pVQZ
 hartrees
Energy at 0K-262.176133
Energy at 298.15K 
HF Energy-262.176133
Nuclear repulsion energy163.701242
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 TPSSh/cc-pVQZ
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 3262 3262 0.06 108.78 0.09 0.17
2 A1 1448 1448 14.68 16.07 0.29 0.46
3 A1 1339 1339 2.99 21.85 0.05 0.09
4 A1 1062 1062 1.71 4.63 0.30 0.46
5 A1 1029 1029 16.79 7.20 0.15 0.26
6 A1 895 895 19.93 6.30 0.11 0.20
7 A2 913 913 0.00 0.40 0.75 0.86
8 A2 657 657 0.00 0.11 0.75 0.86
9 B1 865 865 39.06 0.00 0.75 0.86
10 B1 650 650 1.68 0.29 0.75 0.86
11 B2 3248 3248 0.01 60.53 0.75 0.86
12 B2 1571 1571 0.04 0.04 0.75 0.86
13 B2 1200 1200 4.20 0.68 0.75 0.86
14 B2 962 962 20.70 3.52 0.75 0.86
15 B2 846 846 4.32 0.32 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9974.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9974.4 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 TPSSh/cc-pVQZ
ABC
0.35140 0.32525 0.16891

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/cc-pVQZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.125
N2 0.000 1.131 0.354
N3 0.000 -1.131 0.354
C4 0.000 0.708 -0.879
C5 0.000 -0.708 -0.879
H6 0.000 1.404 -1.702
H7 0.000 -1.404 -1.702

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.36841.36842.12542.12543.15573.1557
N21.36842.26191.30392.21452.07403.2637
N31.36842.26192.21451.30393.26372.0740
C42.12541.30392.21451.41641.07712.2664
C52.12542.21451.30391.41642.26641.0771
H63.15572.07403.26371.07712.26642.8075
H73.15573.26372.07402.26641.07712.8075

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.345 O1 N3 C5 105.345
N2 O1 N3 111.475 N2 C4 C5 108.917
N2 C4 H6 120.863 N3 C5 C4 108.917
N3 C5 H7 120.863 C4 C5 H7 130.220
C5 C4 H6 130.220
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.038      
2 N -0.071      
3 N -0.071      
4 C -0.165      
5 C -0.165      
6 H 0.255      
7 H 0.255      


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 -3.276 3.276
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.578 0.000 0.000
y 0.000 6.521 0.000
z 0.000 0.000 6.419


<r2> (average value of r2) Å2
<r2> 72.162
(<r2>)1/2 8.495