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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: mPW1PW91/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 mPW1PW91/cc-pVDZ
 hartrees
Energy at 0K-262.001921
Energy at 298.15K 
HF Energy-262.001921
Nuclear repulsion energy164.436228
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 mPW1PW91/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 3313 3175 1.28 92.67 0.10 0.18
2 A1 1495 1433 10.90 17.69 0.34 0.50
3 A1 1367 1310 4.35 13.84 0.13 0.22
4 A1 1079 1034 23.45 6.05 0.50 0.67
5 A1 1065 1020 1.25 7.28 0.20 0.33
6 A1 936 897 22.04 4.27 0.12 0.21
7 A2 915 877 0.00 1.40 0.75 0.86
8 A2 668 641 0.00 0.29 0.75 0.86
9 B1 866 830 34.68 0.54 0.75 0.86
10 B1 670 642 1.03 0.48 0.75 0.86
11 B2 3298 3160 0.42 55.15 0.75 0.86
12 B2 1616 1548 0.00 0.03 0.75 0.86
13 B2 1194 1144 4.96 0.72 0.75 0.86
14 B2 980 939 17.14 5.25 0.75 0.86
15 B2 939 900 9.76 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10200.0 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 9774.7 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 mPW1PW91/cc-pVDZ
ABC
0.35378 0.32873 0.17040

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.114
N2 0.000 1.121 0.360
N3 0.000 -1.121 0.360
C4 0.000 0.709 -0.878
C5 0.000 -0.709 -0.878
H6 0.000 1.415 -1.703
H7 0.000 -1.415 -1.703

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.35061.35062.11432.11433.15173.1517
N21.35062.24131.30452.20932.08323.2686
N31.35062.24132.20931.30453.26862.0832
C42.11431.30452.20931.41851.08532.2788
C52.11432.20931.30451.41852.27881.0853
H63.15172.08323.26861.08532.27882.8306
H73.15173.26862.08322.27881.08532.8306

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.546 O1 N3 C5 105.546
N2 O1 N3 112.142 N2 C4 C5 108.383
N2 C4 H6 121.033 N3 C5 C4 108.383
N3 C5 H7 121.033 C4 C5 H7 130.584
C5 C4 H6 130.584
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.082      
2 N -0.067      
3 N -0.067      
4 C 0.056      
5 C 0.056      
6 H 0.052      
7 H 0.052      


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 -3.227 3.227
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.077 0.000 0.000
y 0.000 -29.294 0.000
z 0.000 0.000 -25.099
Traceless
 xyz
x -0.881 0.000 0.000
y 0.000 -2.706 0.000
z 0.000 0.000 3.587
Polar
3z2-r27.173
x2-y21.217
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.452 0.000 0.000
y 0.000 5.563 0.000
z 0.000 0.000 5.639


<r2> (average value of r2) Å2
<r2> 71.579
(<r2>)1/2 8.460