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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: TPSSh/cc-pVTZ

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-pVTZ
 hartrees
Energy at 0K-262.155932
Energy at 298.15K 
HF Energy-262.155932
Nuclear repulsion energy163.588391
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-pVTZ
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 3264 3161 0.06 104.43 0.10 0.19
2 A1 1450 1404 13.84 15.81 0.33 0.49
3 A1 1338 1296 3.16 19.41 0.07 0.12
4 A1 1063 1029 1.76 4.96 0.34 0.50
5 A1 1027 995 16.93 6.54 0.19 0.32
6 A1 894 866 20.79 6.43 0.12 0.22
7 A2 911 882 0.00 0.67 0.75 0.86
8 A2 657 636 0.00 0.13 0.75 0.86
9 B1 864 837 38.83 0.08 0.75 0.86
10 B1 650 629 1.63 0.31 0.75 0.86
11 B2 3249 3146 0.00 60.63 0.75 0.86
12 B2 1571 1521 0.04 0.04 0.75 0.86
13 B2 1198 1160 4.62 0.71 0.75 0.86
14 B2 962 932 21.18 4.22 0.75 0.86
15 B2 842 815 4.53 0.29 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9970.1 cm-1
Scaled (by 0.9683) Zero Point Vibrational Energy (zpe) 9654.1 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-pVTZ
ABC
0.35098 0.32477 0.16868

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.125
N2 0.000 1.132 0.354
N3 0.000 -1.132 0.354
C4 0.000 0.708 -0.880
C5 0.000 -0.708 -0.880
H6 0.000 1.404 -1.703
H7 0.000 -1.404 -1.703

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.36981.36982.12652.12653.15753.1575
N21.36982.26431.30492.21582.07503.2655
N31.36982.26432.21581.30493.26552.0750
C42.12651.30492.21581.41631.07782.2668
C52.12652.21581.30491.41632.26681.0778
H63.15752.07503.26551.07782.26682.8078
H73.15753.26552.07502.26681.07782.8078

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.293 O1 N3 C5 105.293
N2 O1 N3 111.489 N2 C4 C5 108.962
N2 C4 H6 120.828 N3 C5 C4 108.962
N3 C5 H7 120.828 C4 C5 H7 130.210
C5 C4 H6 130.210
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.032      
2 N -0.055      
3 N -0.055      
4 C -0.050      
5 C -0.050      
6 H 0.121      
7 H 0.121      


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 -3.254 3.254
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 3.218 0.000 0.000
y 0.000 6.243 0.000
z 0.000 0.000 6.195


<r2> (average value of r2) Å2
<r2> 72.168
(<r2>)1/2 8.495