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All results from a given calculation for C4H4O (Furan)

using model chemistry: wB97X-D/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at wB97X-D/6-311G**
 hartrees
Energy at 0K-230.000494
Energy at 298.15K 
HF Energy-230.000494
Nuclear repulsion energy161.614310
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 wB97X-D/6-311G**
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 3302 3158 0.01 199.79 0.14 0.25
2 A1 3274 3131 0.45 25.82 0.34 0.50
3 A1 1540 1473 21.26 38.64 0.19 0.32
4 A1 1435 1373 2.63 15.21 0.40 0.57
5 A1 1177 1126 0.91 26.80 0.23 0.37
6 A1 1110 1062 20.05 5.33 0.21 0.35
7 A1 1026 981 41.60 0.54 0.23 0.37
8 A1 897 858 14.68 0.64 0.71 0.83
9 A2 907 867 0.00 0.86 0.75 0.86
10 A2 759 726 0.00 0.28 0.75 0.86
11 A2 622 595 0.00 0.02 0.75 0.86
12 B1 878 840 0.13 0.49 0.75 0.86
13 B1 773 740 106.77 0.77 0.75 0.86
14 B1 632 604 26.78 1.96 0.75 0.86
15 B2 3294 3151 1.43 10.84 0.75 0.86
16 B2 3263 3121 2.42 97.94 0.75 0.86
17 B2 1623 1552 0.72 0.56 0.75 0.86
18 B2 1294 1238 0.34 0.65 0.75 0.86
19 B2 1238 1184 19.02 0.34 0.75 0.86
20 B2 1075 1028 3.42 5.21 0.75 0.86
21 B2 900 861 0.37 4.19 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 15508.7 cm-1
Scaled (by 0.9565) Zero Point Vibrational Energy (zpe) 14834.1 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 wB97X-D/6-311G**
ABC
0.31890 0.31225 0.15777

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.152
C2 0.000 1.087 0.347
C3 0.000 -1.087 0.347
C4 0.000 0.716 -0.955
C5 0.000 -0.716 -0.955
H6 0.000 2.042 0.845
H7 0.000 -2.042 0.845
H8 0.000 1.373 -1.809
H9 0.000 -1.373 -1.809

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 H6 H7 H8 H9
O11.35261.35262.22532.22532.06452.06453.26443.2644
C21.35262.17381.35362.22391.07693.16792.17533.2715
C31.35262.17382.22391.35363.16791.07693.27152.1753
C42.22531.35362.22391.43222.23553.29321.07812.2575
C52.22532.22391.35361.43223.29322.23552.25751.0781
H62.06451.07693.16792.23553.29324.08312.73754.3254
H72.06453.16791.07693.29322.23554.08314.32542.7375
H83.26442.17533.27151.07812.25752.73754.32542.7469
H93.26443.27152.17532.25751.07814.32542.73752.7469

picture of Furan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C4 110.631 O1 C2 H6 115.909
O1 C3 C5 110.631 O1 C3 H7 115.909
C2 O1 C3 106.943 C2 C4 C5 105.897
C2 C4 H8 126.534 C3 C5 C4 105.897
C3 C5 H9 126.534 C4 C2 H6 133.460
C4 C5 H9 127.569 C5 C3 H7 133.460
C5 C4 H8 127.569
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.222      
2 C 0.058      
3 C 0.058      
4 C -0.192      
5 C -0.192      
6 H 0.127      
7 H 0.127      
8 H 0.117      
9 H 0.117      


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 -0.586 0.586
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.718 0.000 0.000
y 0.000 -23.711 0.000
z 0.000 0.000 -27.751
Traceless
 xyz
x -5.986 0.000 0.000
y 0.000 6.023 0.000
z 0.000 0.000 -0.036
Polar
3z2-r2-0.073
x2-y2-8.006
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.302 0.000 0.000
y 0.000 7.388 0.000
z 0.000 0.000 6.975


<r2> (average value of r2) Å2
<r2> 80.736
(<r2>)1/2 8.985