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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: mPW1PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at mPW1PW91/6-31G*
 hartrees
Energy at 0K-261.980905
Energy at 298.15K 
HF Energy-261.980905
Nuclear repulsion energy164.371429
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 mPW1PW91/6-31G*
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 3333 3161 0.47 89.93 0.10 0.18
2 A1 1499 1422 10.71 17.96 0.36 0.53
3 A1 1377 1306 3.97 13.20 0.16 0.27
4 A1 1083 1027 3.35 4.97 0.55 0.71
5 A1 1075 1020 21.27 7.56 0.18 0.30
6 A1 941 893 20.19 5.04 0.12 0.22
7 A2 911 864 0.00 2.03 0.75 0.86
8 A2 667 633 0.00 0.28 0.75 0.86
9 B1 869 824 36.96 0.87 0.75 0.86
10 B1 667 632 0.89 0.69 0.75 0.86
11 B2 3319 3147 0.03 55.88 0.75 0.86
12 B2 1625 1541 0.10 0.11 0.75 0.86
13 B2 1220 1157 4.66 0.67 0.75 0.86
14 B2 981 930 14.52 5.21 0.75 0.86
15 B2 950 901 11.46 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10258.7 cm-1
Scaled (by 0.9483) Zero Point Vibrational Energy (zpe) 9728.3 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 mPW1PW91/6-31G*
ABC
0.35373 0.32827 0.17026

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.116
N2 0.000 1.123 0.358
N3 0.000 -1.123 0.358
C4 0.000 0.708 -0.878
C5 0.000 -0.708 -0.878
H6 0.000 1.407 -1.700
H7 0.000 -1.407 -1.700

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.35491.35492.11572.11573.14813.1481
N21.35492.24591.30322.20922.07763.2613
N31.35492.24592.20921.30323.26132.0776
C42.11571.30322.20921.41691.07912.2697
C52.11572.20921.30321.41692.26971.0791
H63.14812.07763.26131.07912.26972.8138
H73.14813.26132.07762.26971.07912.8138

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.476 O1 N3 C5 105.476
N2 O1 N3 111.957 N2 C4 C5 108.546
N2 C4 H6 121.122 N3 C5 C4 108.546
N3 C5 H7 121.122 C4 C5 H7 130.333
C5 C4 H6 130.333
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.199      
2 N -0.100      
3 N -0.100      
4 C -0.024      
5 C -0.024      
6 H 0.223      
7 H 0.223      


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 -3.346 3.346
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.056 0.000 0.000
y 0.000 -29.284 0.000
z 0.000 0.000 -24.907
Traceless
 xyz
x -0.960 0.000 0.000
y 0.000 -2.803 0.000
z 0.000 0.000 3.762
Polar
3z2-r27.525
x2-y21.229
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.310 0.000 0.000
y 0.000 5.522 0.000
z 0.000 0.000 5.607


<r2> (average value of r2) Å2
<r2> 71.541
(<r2>)1/2 8.458