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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: HSEh1PBE/daug-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 HSEh1PBE/daug-cc-pVTZ
 hartrees
Energy at 0K-261.877352
Energy at 298.15K 
HF Energy-261.877352
Nuclear repulsion energy164.917080
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 HSEh1PBE/daug-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 3289 3289 0.70 103.31 0.08 0.15
2 A1 1478 1478 13.31 20.78 0.21 0.34
3 A1 1364 1364 4.08 23.36 0.04 0.07
4 A1 1073 1073 20.08 4.18 0.42 0.59
5 A1 1064 1064 4.36 9.45 0.06 0.11
6 A1 932 932 20.17 4.41 0.10 0.19
7 A2 927 927 0.00 0.07 0.75 0.86
8 A2 670 670 0.00 0.09 0.75 0.86
9 B1 872 872 40.67 0.05 0.75 0.86
10 B1 671 671 1.68 0.31 0.75 0.86
11 B2 3275 3275 0.35 54.96 0.75 0.86
12 B2 1606 1606 0.01 0.06 0.75 0.86
13 B2 1204 1204 3.94 0.54 0.75 0.86
14 B2 978 978 19.16 2.59 0.75 0.86
15 B2 927 927 6.33 0.08 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10165.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10165.4 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 HSEh1PBE/daug-cc-pVTZ
ABC
0.35546 0.33098 0.17139

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/daug-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 0.356
N3 0.000 -1.117 0.356
C4 0.000 0.707 -0.875
C5 0.000 -0.707 -0.875
H6 0.000 1.405 -1.695
H7 0.000 -1.405 -1.695

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.35051.35052.11152.11153.14143.1414
N21.35052.23461.29762.20062.07113.2511
N31.35052.23462.20061.29763.25112.0711
C42.11151.29762.20061.41361.07712.2657
C52.11152.20061.29761.41362.26571.0771
H63.14142.07113.25111.07712.26572.8106
H73.14143.25112.07112.26571.07712.8106

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 111.648 N2 C4 C5 108.441
N2 C4 H6 121.133 N3 C5 C4 108.441
N3 C5 H7 121.133 C4 C5 H7 130.426
C5 C4 H6 130.426
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.387      
2 N -0.760      
3 N -0.760      
4 C 0.075      
5 C 0.075      
6 H 0.878      
7 H 0.878      


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 -3.301 3.301
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.475 0.000 0.000
y 0.000 -30.055 0.000
z 0.000 0.000 -25.240
Traceless
 xyz
x -0.828 0.000 0.000
y 0.000 -3.197 0.000
z 0.000 0.000 4.025
Polar
3z2-r28.049
x2-y21.580
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.920 0.000 0.000
y 0.000 6.660 0.000
z 0.000 0.000 6.552


<r2> (average value of r2) Å2
<r2> 71.509
(<r2>)1/2 8.456