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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: HF/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HF/Def2TZVPP
 hartrees
Energy at 0K-260.651967
Energy at 298.15K 
HF Energy-260.651967
Nuclear repulsion energy167.202465
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 HF/Def2TZVPP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3430 3109 0.00 91.04 0.09 0.17
2 A1 1647 1492 9.74 33.44 0.10 0.18
3 A1 1476 1338 5.96 16.55 0.14 0.25
4 A1 1163 1054 46.18 6.34 0.33 0.50
5 A1 1110 1006 0.09 2.00 0.06 0.11
6 A1 1006 912 35.50 3.67 0.13 0.24
7 A2 1039 942 0.00 1.35 0.75 0.86
8 A2 716 649 0.00 0.00 0.75 0.86
9 B1 978 886 38.22 0.11 0.75 0.86
10 B1 702 636 2.05 0.68 0.75 0.86
11 B2 3416 3097 0.19 51.16 0.75 0.86
12 B2 1796 1628 0.00 0.97 0.75 0.86
13 B2 1337 1212 2.21 1.00 0.75 0.86
14 B2 1131 1025 0.34 0.49 0.75 0.86
15 B2 1054 955 31.42 3.99 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11000.2 cm-1
Scaled (by 0.9064) Zero Point Vibrational Energy (zpe) 9970.6 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 HF/Def2TZVPP
ABC
0.36660 0.33808 0.17588

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.097
N2 0.000 1.096 0.350
N3 0.000 -1.096 0.350
C4 0.000 0.714 -0.861
C5 0.000 -0.714 -0.861
H6 0.000 1.406 -1.673
H7 0.000 -1.406 -1.673

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.32671.32672.08462.08463.10703.1070
N21.32672.19241.27032.17782.04693.2180
N31.32672.19242.17781.27033.21802.0469
C42.08461.27032.17781.42731.06722.2701
C52.08462.17781.27031.42732.27011.0672
H63.10702.04693.21801.06722.27012.8125
H73.10703.21802.04692.27011.06722.8125

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 106.758 O1 N3 C5 106.758
N2 O1 N3 111.436 N2 C4 C5 107.525
N2 C4 H6 122.008 N3 C5 C4 107.525
N3 C5 H7 122.008 C4 C5 H7 130.467
C5 C4 H6 130.467
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.084      
2 N -0.118      
3 N -0.118      
4 C 0.039      
5 C 0.039      
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 -3.669 3.669
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.510 0.000 0.000
y 0.000 -30.053 0.000
z 0.000 0.000 -25.207
Traceless
 xyz
x -0.881 0.000 0.000
y 0.000 -3.194 0.000
z 0.000 0.000 4.075
Polar
3z2-r28.149
x2-y21.542
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.404 0.000 0.000
y 0.000 5.603 0.000
z 0.000 0.000 6.039


<r2> (average value of r2) Å2
<r2> 70.180
(<r2>)1/2 8.377