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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: PBE1PBE/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 PBE1PBE/6-31+G**
 hartrees
Energy at 0K-261.772230
Energy at 298.15K 
HF Energy-261.772230
Nuclear repulsion energy164.362994
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 PBE1PBE/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 3319 3170 1.57 102.14 0.10 0.19
2 A1 1495 1428 12.98 21.88 0.26 0.41
3 A1 1371 1310 3.51 19.99 0.06 0.11
4 A1 1079 1030 23.70 5.42 0.44 0.61
5 A1 1075 1027 4.26 8.51 0.07 0.13
6 A1 938 896 21.26 3.91 0.13 0.22
7 A2 909 868 0.00 0.28 0.75 0.86
8 A2 661 631 0.00 0.18 0.75 0.86
9 B1 865 826 46.88 0.00 0.75 0.86
10 B1 664 634 1.10 0.50 0.75 0.86
11 B2 3305 3157 0.62 59.03 0.75 0.86
12 B2 1619 1547 0.00 0.13 0.75 0.86
13 B2 1210 1156 4.74 0.63 0.75 0.86
14 B2 977 934 12.22 3.93 0.75 0.86
15 B2 951 909 11.73 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10217.8 cm-1
Scaled (by 0.9553) Zero Point Vibrational Energy (zpe) 9761.1 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 PBE1PBE/6-31+G**
ABC
0.35332 0.32854 0.17024

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.116
N2 0.000 1.122 0.358
N3 0.000 -1.122 0.358
C4 0.000 0.709 -0.879
C5 0.000 -0.709 -0.879
H6 0.000 1.410 -1.701
H7 0.000 -1.410 -1.701

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.35361.35362.11682.11683.14983.1498
N21.35362.24351.30412.20952.07923.2632
N31.35362.24352.20951.30413.26322.0792
C42.11681.30412.20951.41801.08032.2726
C52.11682.20951.30411.41802.27261.0803
H63.14982.07923.26321.08032.27262.8194
H73.14983.26322.07922.27261.08032.8194

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 105.578 O1 N3 C5 105.578
N2 O1 N3 111.938 N2 C4 C5 108.453
N2 C4 H6 121.108 N3 C5 C4 108.453
N3 C5 H7 121.108 C4 C5 H7 130.439
C5 C4 H6 130.439
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O 0.188      
2 N -0.190      
3 N -0.190      
4 C -0.105      
5 C -0.105      
6 H 0.202      
7 H 0.202      


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 -3.459 3.459
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.723 0.000 0.000
y 0.000 -30.195 0.000
z 0.000 0.000 -25.417
Traceless
 xyz
x -0.917 0.000 0.000
y 0.000 -3.125 0.000
z 0.000 0.000 4.042
Polar
3z2-r28.085
x2-y21.472
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.494 0.000 0.000
y 0.000 6.386 0.000
z 0.000 0.000 6.298


<r2> (average value of r2) Å2
<r2> 71.991
(<r2>)1/2 8.485