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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: mPW1PW91/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-262.083383
Energy at 298.15K 
HF Energy-262.083383
Nuclear repulsion energy165.041289
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/Def2TZVPP
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 3300 3300 0.56 99.94 0.09 0.16
2 A1 1482 1482 12.63 19.93 0.23 0.37
3 A1 1369 1369 4.05 19.18 0.06 0.11
4 A1 1077 1077 22.93 5.24 0.46 0.63
5 A1 1068 1068 2.15 6.97 0.09 0.16
6 A1 938 938 20.88 4.49 0.12 0.22
7 A2 927 927 0.00 0.66 0.75 0.86
8 A2 671 671 0.00 0.05 0.75 0.86
9 B1 875 875 39.77 0.00 0.75 0.86
10 B1 672 672 1.77 0.30 0.75 0.86
11 B2 3285 3285 0.23 53.59 0.75 0.86
12 B2 1612 1612 0.02 0.12 0.75 0.86
13 B2 1211 1211 4.09 0.61 0.75 0.86
14 B2 982 982 18.83 4.05 0.75 0.86
15 B2 937 937 7.45 0.08 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10201.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10201.7 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/Def2TZVPP
ABC
0.35601 0.33144 0.17164

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.113
N2 0.000 1.116 0.356
N3 0.000 -1.116 0.356
C4 0.000 0.707 -0.875
C5 0.000 -0.707 -0.875
H6 0.000 1.405 -1.694
H7 0.000 -1.405 -1.694

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.34901.34902.10982.10983.13903.1390
N21.34902.23251.29682.19942.06993.2490
N31.34902.23252.19941.29683.24902.0699
C42.10981.29682.19941.41351.07622.2647
C52.10982.19941.29681.41352.26471.0762
H63.13902.06993.24901.07622.26472.8091
H73.13903.24902.06992.26471.07622.8091

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.753 O1 N3 C5 105.753
N2 O1 N3 111.680 N2 C4 C5 108.407
N2 C4 H6 121.170 N3 C5 C4 108.407
N3 C5 H7 121.170 C4 C5 H7 130.423
C5 C4 H6 130.423
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.001      
2 N -0.079      
3 N -0.079      
4 C -0.053      
5 C -0.053      
6 H 0.132      
7 H 0.132      


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 -3.290 3.290
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.285 0.000 0.000
y 0.000 -29.834 0.000
z 0.000 0.000 -25.082
Traceless
 xyz
x -0.827 0.000 0.000
y 0.000 -3.150 0.000
z 0.000 0.000 3.977
Polar
3z2-r27.954
x2-y21.549
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.495 0.000 0.000
y 0.000 6.234 0.000
z 0.000 0.000 6.225


<r2> (average value of r2) Å2
<r2> 71.313
(<r2>)1/2 8.445