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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: B2PLYP/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B2PLYP/6-31+G**
 hartrees
Energy at 0K-261.821927
Energy at 298.15K 
HF Energy-261.552395
Nuclear repulsion energy162.747469
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 B2PLYP/6-31+G**
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 3327 3169 1.22 106.15 0.10 0.19
2 A1 1455 1386 19.06 18.44 0.39 0.56
3 A1 1343 1279 1.72 24.09 0.03 0.06
4 A1 1076 1025 0.49 4.73 0.20 0.34
5 A1 1024 975 15.63 7.70 0.17 0.29
6 A1 892 850 22.91 7.69 0.11 0.20
7 A2 881 839 0.00 0.22 0.75 0.86
8 A2 643 612 0.00 0.18 0.75 0.86
9 B1 854 814 45.63 0.00 0.75 0.86
10 B1 640 609 1.23 0.38 0.75 0.86
11 B2 3314 3156 0.51 60.55 0.75 0.86
12 B2 1570 1495 0.04 0.02 0.75 0.86
13 B2 1208 1151 5.46 0.56 0.75 0.86
14 B2 964 918 17.61 3.60 0.75 0.86
15 B2 852 812 2.98 0.57 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10021.3 cm-1
Scaled (by 0.9524) Zero Point Vibrational Energy (zpe) 9544.3 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 B2PLYP/6-31+G**
ABC
0.34714 0.32168 0.16696

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.132
N2 0.000 1.139 0.356
N3 0.000 -1.139 0.356
C4 0.000 0.710 -0.885
C5 0.000 -0.710 -0.885
H6 0.000 1.404 -1.709
H7 0.000 -1.404 -1.709

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.37831.37832.13812.13813.16913.1691
N21.37832.27831.31322.22672.08213.2762
N31.37832.27832.22671.31323.27622.0821
C42.13811.31322.22671.41941.07782.2688
C52.13812.22671.31321.41942.26881.0778
H63.16912.08213.27621.07782.26882.8082
H73.16913.27622.08212.26881.07782.8082

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.169 O1 N3 C5 105.169
N2 O1 N3 111.482 N2 C4 C5 109.090
N2 C4 H6 120.795 N3 C5 C4 109.090
N3 C5 H7 120.795 C4 C5 H7 130.115
C5 C4 H6 130.115
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O 0.148      
2 N -0.194      
3 N -0.194      
4 C -0.063      
5 C -0.063      
6 H 0.184      
7 H 0.184      


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 -3.575 3.575
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.035 0.000 0.000
y 0.000 -30.662 0.000
z 0.000 0.000 -25.843
Traceless
 xyz
x -0.782 0.000 0.000
y 0.000 -3.223 0.000
z 0.000 0.000 4.006
Polar
3z2-r28.011
x2-y21.627
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.564 0.000 0.000
y 0.000 6.565 0.000
z 0.000 0.000 6.421


<r2> (average value of r2) Å2
<r2> 73.223
(<r2>)1/2 8.557