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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: TPSSh/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 TPSSh/6-31G(2df,p)
 hartrees
Energy at 0K-262.082356
Energy at 298.15K 
HF Energy-262.082356
Nuclear repulsion energy163.442610
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/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 3282 3167 0.01 94.96 0.10 0.18
2 A1 1450 1400 12.09 14.74 0.37 0.55
3 A1 1340 1294 3.61 16.17 0.10 0.19
4 A1 1068 1031 1.75 5.61 0.40 0.58
5 A1 1036 1000 16.28 6.82 0.17 0.28
6 A1 903 872 17.30 5.83 0.10 0.18
7 A2 909 877 0.00 1.34 0.75 0.86
8 A2 657 634 0.00 0.32 0.75 0.86
9 B1 869 838 31.05 0.74 0.75 0.86
10 B1 652 629 1.50 0.50 0.75 0.86
11 B2 3266 3152 0.01 61.22 0.75 0.86
12 B2 1570 1515 0.08 0.06 0.75 0.86
13 B2 1200 1158 4.49 0.88 0.75 0.86
14 B2 961 927 21.03 4.55 0.75 0.86
15 B2 867 837 6.21 0.18 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10015.0 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 9664.5 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/6-31G(2df,p)
ABC
0.35013 0.32437 0.16838

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.124
N2 0.000 1.132 0.357
N3 0.000 -1.132 0.357
C4 0.000 0.709 -0.882
C5 0.000 -0.709 -0.882
H6 0.000 1.407 -1.705
H7 0.000 -1.407 -1.705

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.36781.36782.12772.12773.15953.1595
N21.36782.26491.30932.21942.08003.2710
N31.36782.26492.21941.30933.27102.0800
C42.12771.30932.21941.41801.07902.2702
C52.12772.21941.30931.41802.27021.0790
H63.15952.08003.27101.07902.27022.8138
H73.15953.27102.08002.27021.07902.8138

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.244 O1 N3 C5 105.244
N2 O1 N3 111.770 N2 C4 C5 108.871
N2 C4 H6 120.827 N3 C5 C4 108.871
N3 C5 H7 120.827 C4 C5 H7 130.302
C5 C4 H6 130.302
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.175      
2 N -0.055      
3 N -0.055      
4 C -0.034      
5 C -0.034      
6 H 0.176      
7 H 0.176      


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 -3.175 3.175
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 2.789 0.000 0.000
y 0.000 5.902 0.000
z 0.000 0.000 5.872


<r2> (average value of r2) Å2
<r2> 71.997
(<r2>)1/2 8.485