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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: mPW1PW91/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 mPW1PW91/aug-cc-pVTZ
 hartrees
Energy at 0K-262.076518
Energy at 298.15K 
HF Energy-262.076518
Nuclear repulsion energy164.945754
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/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 3296 3158 0.66 102.73 0.08 0.15
2 A1 1481 1419 13.18 20.93 0.20 0.34
3 A1 1366 1309 4.14 23.11 0.04 0.08
4 A1 1073 1029 18.32 3.59 0.51 0.67
5 A1 1066 1021 6.24 9.65 0.06 0.11
6 A1 933 894 20.38 4.45 0.10 0.19
7 A2 929 890 0.00 0.05 0.75 0.86
8 A2 670 642 0.00 0.11 0.75 0.86
9 B1 876 839 40.45 0.05 0.75 0.86
10 B1 670 642 1.69 0.30 0.75 0.86
11 B2 3282 3144 0.32 54.73 0.75 0.86
12 B2 1610 1543 0.01 0.08 0.75 0.86
13 B2 1209 1158 3.90 0.55 0.75 0.86
14 B2 980 939 19.35 2.67 0.75 0.86
15 B2 930 891 6.02 0.10 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10184.9 cm-1
Scaled (by 0.9581) Zero Point Vibrational Energy (zpe) 9758.2 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/aug-cc-pVTZ
ABC
0.35569 0.33099 0.17145

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.114
N2 0.000 1.117 0.355
N3 0.000 -1.117 0.355
C4 0.000 0.707 -0.875
C5 0.000 -0.707 -0.875
H6 0.000 1.404 -1.695
H7 0.000 -1.404 -1.695

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.35101.35102.11112.11113.14023.1402
N21.35102.23481.29682.20022.06963.2493
N31.35102.23482.20021.29683.24932.0696
C42.11111.29682.20021.41361.07592.2641
C52.11112.20021.29681.41362.26411.0759
H63.14022.06963.24931.07592.26412.8076
H73.14023.24932.06962.26411.07592.8076

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.735 O1 N3 C5 105.735
N2 O1 N3 111.610 N2 C4 C5 108.460
N2 C4 H6 121.163 N3 C5 C4 108.460
N3 C5 H7 121.163 C4 C5 H7 130.377
C5 C4 H6 130.377
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.112      
2 N -0.409      
3 N -0.409      
4 C -0.000      
5 C -0.000      
6 H 0.465      
7 H 0.465      


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 -3.318 3.318
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.405 0.000 0.000
y 0.000 -29.973 0.000
z 0.000 0.000 -25.167
Traceless
 xyz
x -0.835 0.000 0.000
y 0.000 -3.187 0.000
z 0.000 0.000 4.022
Polar
3z2-r28.043
x2-y21.568
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.896 0.000 0.000
y 0.000 6.625 0.000
z 0.000 0.000 6.527


<r2> (average value of r2) Å2
<r2> 71.440
(<r2>)1/2 8.452