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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: HF/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-260.569514
Energy at 298.15K 
HF Energy-260.569514
Nuclear repulsion energy166.696407
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/cc-pVDZ
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 3453 3135 0.40 85.76 0.10 0.19
2 A1 1664 1511 7.56 26.07 0.20 0.34
3 A1 1474 1339 6.19 12.58 0.23 0.38
4 A1 1165 1058 45.45 6.50 0.40 0.57
5 A1 1109 1007 0.26 2.54 0.21 0.35
6 A1 1006 914 39.13 3.99 0.12 0.21
7 A2 1025 931 0.00 2.36 0.75 0.86
8 A2 717 651 0.00 0.09 0.75 0.86
9 B1 967 878 33.96 0.09 0.75 0.86
10 B1 701 637 1.12 0.95 0.75 0.86
11 B2 3438 3122 0.03 52.87 0.75 0.86
12 B2 1807 1641 0.00 0.70 0.75 0.86
13 B2 1321 1199 2.80 1.00 0.75 0.86
14 B2 1132 1028 0.37 0.48 0.75 0.86
15 B2 1057 959 32.00 5.05 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11018.1 cm-1
Scaled (by 0.908) Zero Point Vibrational Energy (zpe) 10004.4 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 HF/cc-pVDZ
ABC
0.36461 0.33593 0.17484

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.098
N2 0.000 1.099 0.354
N3 0.000 -1.099 0.354
C4 0.000 0.715 -0.864
C5 0.000 -0.715 -0.864
H6 0.000 1.416 -1.681
H7 0.000 -1.416 -1.681

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.32771.32772.08832.08833.11863.1186
N21.32772.19901.27692.18562.05873.2353
N31.32772.19902.18561.27693.23532.0587
C42.08831.27692.18561.43081.07602.2827
C52.08832.18561.27691.43082.28271.0760
H63.11862.05873.23531.07602.28272.8325
H73.11863.23532.05872.28271.07602.8325

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 106.586 O1 N3 C5 106.586
N2 O1 N3 111.816 N2 C4 C5 107.506
N2 C4 H6 121.851 N3 C5 C4 107.506
N3 C5 H7 121.851 C4 C5 H7 130.643
C5 C4 H6 130.643
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.166      
2 N -0.047      
3 N -0.047      
4 C 0.064      
5 C 0.064      
6 H 0.066      
7 H 0.066      


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 -3.726 3.726
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.467 0.000 0.000
y 0.000 -29.741 0.000
z 0.000 0.000 -25.444
Traceless
 xyz
x -0.875 0.000 0.000
y 0.000 -2.785 0.000
z 0.000 0.000 3.660
Polar
3z2-r27.320
x2-y21.274
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.408 0.000 0.000
y 0.000 5.008 0.000
z 0.000 0.000 5.539


<r2> (average value of r2) Å2
<r2> 70.495
(<r2>)1/2 8.396