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All results from a given calculation for C2H2N2O (Furazan)

using model chemistry: HF/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 HF/daug-cc-pVTZ
 hartrees
Energy at 0K-260.645578
Energy at 298.15K 
HF Energy-260.645578
Nuclear repulsion energy167.126187
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 HF/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 3428 3101 0.01 90.04 0.08 0.16
2 A1 1645 1488 10.28 38.59 0.08 0.15
3 A1 1474 1334 6.23 19.66 0.10 0.18
4 A1 1160 1049 45.56 6.56 0.23 0.38
5 A1 1110 1004 0.15 2.46 0.04 0.08
6 A1 1003 908 34.54 3.49 0.11 0.20
7 A2 1039 940 0.00 0.32 0.75 0.86
8 A2 715 647 0.00 0.02 0.75 0.86
9 B1 977 884 38.08 0.36 0.75 0.86
10 B1 700 633 2.00 0.70 0.75 0.86
11 B2 3414 3088 0.11 50.64 0.75 0.86
12 B2 1794 1622 0.00 0.72 0.75 0.86
13 B2 1336 1208 2.06 0.91 0.75 0.86
14 B2 1127 1020 0.29 0.33 0.75 0.86
15 B2 1053 953 31.27 2.92 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10987.2 cm-1
Scaled (by 0.9046) Zero Point Vibrational Energy (zpe) 9939.0 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 HF/daug-cc-pVTZ
ABC
0.36632 0.33775 0.17573

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.098
N2 0.000 1.097 0.350
N3 0.000 -1.097 0.350
C4 0.000 0.714 -0.862
C5 0.000 -0.714 -0.862
H6 0.000 1.406 -1.673
H7 0.000 -1.406 -1.673

Atom - Atom Distances (Å)
  O1 N2 N3 C4 C5 H6 H7
O11.32771.32772.08562.08563.10793.1079
N21.32772.19391.27082.17872.04703.2188
N31.32772.19392.17871.27083.21882.0470
C42.08561.27082.17871.42751.06712.2702
C52.08562.17871.27081.42752.27021.0671
H63.10792.04703.21881.06712.27022.8127
H73.10793.21882.04702.27021.06712.8127

picture of Furazan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N2 C4 106.742 O1 N3 C5 106.742
N2 O1 N3 111.419 N2 C4 C5 107.549
N2 C4 H6 121.986 N3 C5 C4 107.549
N3 C5 H7 121.986 C4 C5 H7 130.466
C5 C4 H6 130.466
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.431      
2 N -0.869      
3 N -0.869      
4 C -0.101      
5 C -0.101      
6 H 1.186      
7 H 1.186      


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 -3.677 3.677
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.577 0.000 0.000
y 0.000 -30.134 0.000
z 0.000 0.000 -25.237
Traceless
 xyz
x -0.891 0.000 0.000
y 0.000 -3.227 0.000
z 0.000 0.000 4.118
Polar
3z2-r28.237
x2-y21.558
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.752 0.000 0.000
y 0.000 5.943 0.000
z 0.000 0.000 6.264


<r2> (average value of r2) Å2
<r2> 70.262
(<r2>)1/2 8.382