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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: HF/aug-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 HF/aug-cc-pVTZ
 hartrees
Energy at 0K-260.645063
Energy at 298.15K 
HF Energy-260.645063
Nuclear repulsion energy167.124396
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/aug-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 3428 3121 0.01 90.25 0.08 0.16
2 A1 1645 1498 10.21 38.37 0.08 0.15
3 A1 1474 1342 6.19 19.56 0.10 0.18
4 A1 1160 1056 45.58 6.54 0.24 0.38
5 A1 1110 1011 0.15 2.43 0.04 0.08
6 A1 1004 914 34.68 3.49 0.11 0.20
7 A2 1039 946 0.00 0.29 0.75 0.86
8 A2 715 651 0.00 0.02 0.75 0.86
9 B1 978 890 38.17 0.37 0.75 0.86
10 B1 700 638 2.02 0.69 0.75 0.86
11 B2 3415 3109 0.11 50.74 0.75 0.86
12 B2 1794 1633 0.00 0.73 0.75 0.86
13 B2 1336 1217 2.07 0.92 0.75 0.86
14 B2 1127 1026 0.30 0.34 0.75 0.86
15 B2 1053 959 31.24 2.95 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10989.4 cm-1
Scaled (by 0.9104) Zero Point Vibrational Energy (zpe) 10004.7 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 HF/aug-cc-pVTZ
ABC
0.36629 0.33775 0.17572

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.098
N2 0.000 1.097 0.350
N3 0.000 -1.097 0.350
C4 0.000 0.714 -0.862
C5 0.000 -0.714 -0.862
H6 0.000 1.406 -1.674
H7 0.000 -1.406 -1.674

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.32781.32782.08562.08563.10793.1079
N21.32782.19391.27072.17872.04713.2187
N31.32782.19392.17871.27073.21872.0471
C42.08561.27072.17871.42751.06712.2700
C52.08562.17871.27071.42752.27001.0671
H63.10792.04713.21871.06712.27002.8120
H73.10793.21872.04712.27001.06712.8120

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 106.743 O1 N3 C5 106.743
N2 O1 N3 111.414 N2 C4 C5 107.551
N2 C4 H6 122.004 N3 C5 C4 107.551
N3 C5 H7 122.004 C4 C5 H7 130.446
C5 C4 H6 130.446
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.150      
2 N -0.388      
3 N -0.388      
4 C -0.185      
5 C -0.185      
6 H 0.648      
7 H 0.648      


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 -3.681 3.681
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.593 0.000 0.000
y 0.000 -30.132 0.000
z 0.000 0.000 -25.241
Traceless
 xyz
x -0.906 0.000 0.000
y 0.000 -3.215 0.000
z 0.000 0.000 4.121
Polar
3z2-r28.243
x2-y21.540
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.749 0.000 0.000
y 0.000 5.935 0.000
z 0.000 0.000 6.261


<r2> (average value of r2) Å2
<r2> 70.266
(<r2>)1/2 8.382