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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: BLYP/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 BLYP/cc-pVTZ
 hartrees
Energy at 0K-262.095698
Energy at 298.15K 
HF Energy-262.095698
Nuclear repulsion energy161.522484
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 BLYP/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 3186 3176 0.02 111.41 0.11 0.20
2 A1 1385 1381 14.00 15.02 0.36 0.53
3 A1 1287 1283 2.79 18.77 0.07 0.14
4 A1 1025 1022 1.01 5.66 0.31 0.47
5 A1 975 972 8.73 4.29 0.27 0.43
6 A1 831 829 21.71 9.38 0.12 0.22
7 A2 873 871 0.00 0.76 0.75 0.86
8 A2 637 635 0.00 0.16 0.75 0.86
9 B1 827 824 36.99 0.20 0.75 0.86
10 B1 622 620 1.74 0.26 0.75 0.86
11 B2 3172 3163 0.00 64.65 0.75 0.86
12 B2 1507 1502 0.08 0.01 0.75 0.86
13 B2 1160 1156 5.24 0.82 0.75 0.86
14 B2 937 934 20.64 4.24 0.75 0.86
15 B2 688 686 4.63 0.51 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9555.7 cm-1
Scaled (by 0.997) Zero Point Vibrational Energy (zpe) 9527.0 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 BLYP/cc-pVTZ
ABC
0.34334 0.31569 0.16447

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.145
N2 0.000 1.153 0.351
N3 0.000 -1.153 0.351
C4 0.000 0.713 -0.887
C5 0.000 -0.713 -0.887
H6 0.000 1.404 -1.720
H7 0.000 -1.404 -1.720

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.39981.39982.15332.15333.19103.1910
N21.39982.30571.31372.23922.08673.2908
N31.39982.30572.23921.31373.29082.0867
C42.15331.31372.23921.42611.08282.2754
C52.15332.23921.31371.42612.27541.0828
H63.19102.08673.29081.08282.27542.8083
H73.19103.29082.08672.27541.08282.8083

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 104.996 O1 N3 C5 104.996
N2 O1 N3 110.892 N2 C4 C5 109.558
N2 C4 H6 120.781 N3 C5 C4 109.558
N3 C5 H7 120.781 C4 C5 H7 129.661
C5 C4 H6 129.661
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.043      
2 N -0.038      
3 N -0.038      
4 C -0.059      
5 C -0.059      
6 H 0.119      
7 H 0.119      


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 -3.254 3.254
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.544 0.000 0.000
y 0.000 -30.131 0.000
z 0.000 0.000 -25.518
Traceless
 xyz
x -0.720 0.000 0.000
y 0.000 -3.100 0.000
z 0.000 0.000 3.819
Polar
3z2-r27.638
x2-y21.587
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.262 0.000 0.000
y 0.000 6.502 0.000
z 0.000 0.000 6.398


<r2> (average value of r2) Å2
<r2> 73.752
(<r2>)1/2 8.588