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All results from a given calculation for C4H4O (Furan)

using model chemistry: B97D3/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B97D3/6-311+G(3df,2p)
 hartrees
Energy at 0K-229.954977
Energy at 298.15K 
HF Energy-229.954977
Nuclear repulsion energy160.417974
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 B97D3/6-311+G(3df,2p)
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 3231 3189 0.02 216.17 0.12 0.22
2 A1 3201 3160 1.66 39.75 0.27 0.42
3 A1 1471 1452 16.90 58.80 0.10 0.18
4 A1 1380 1363 2.89 18.40 0.30 0.47
5 A1 1142 1127 0.13 34.06 0.12 0.21
6 A1 1072 1059 6.69 7.07 0.08 0.15
7 A1 991 979 39.97 1.93 0.20 0.34
8 A1 871 860 16.89 0.18 0.55 0.71
9 A2 856 845 0.00 0.27 0.75 0.86
10 A2 694 685 0.00 2.55 0.75 0.86
11 A2 600 593 0.00 0.04 0.75 0.86
12 B1 817 806 0.31 1.73 0.75 0.86
13 B1 730 720 110.55 0.07 0.75 0.86
14 B1 608 601 20.58 0.75 0.75 0.86
15 B2 3224 3182 1.55 15.59 0.75 0.86
16 B2 3191 3149 3.08 101.11 0.75 0.86
17 B2 1547 1527 0.01 0.13 0.75 0.86
18 B2 1260 1244 0.05 0.60 0.75 0.86
19 B2 1157 1142 18.24 0.44 0.75 0.86
20 B2 1028 1015 0.70 4.90 0.75 0.86
21 B2 879 867 0.85 2.26 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 14974.6 cm-1
Scaled (by 0.987) Zero Point Vibrational Energy (zpe) 14779.9 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 B97D3/6-311+G(3df,2p)
ABC
0.31410 0.30775 0.15545

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.163
C2 0.000 1.099 0.347
C3 0.000 -1.099 0.347
C4 0.000 0.718 -0.961
C5 0.000 -0.718 -0.961
H6 0.000 2.055 0.849
H7 0.000 -2.055 0.849
H8 0.000 1.372 -1.820
H9 0.000 -1.372 -1.820

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 H6 H7 H8 H9
O11.36901.36902.24212.24212.07862.07863.28403.2840
C21.36902.19881.36292.23891.07893.19372.18483.2876
C31.36902.19882.23891.36293.19371.07893.28762.1848
C42.24211.36292.23891.43502.25013.31061.08042.2597
C52.24212.23891.36291.43503.31062.25012.25971.0804
H62.07861.07893.19372.25013.31064.10932.75494.3438
H72.07863.19371.07893.31062.25014.10934.34382.7549
H83.28402.18483.28761.08042.25972.75494.34382.7448
H93.28403.28762.18482.25971.08044.34382.75492.7448

picture of Furan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C4 110.307 O1 C2 H6 115.725
O1 C3 C5 110.307 O1 C3 H7 115.725
C2 O1 C3 106.842 C2 C4 C5 106.272
C2 C4 H8 126.418 C3 C5 C4 106.272
C3 C5 H9 126.418 C4 C2 H6 133.968
C4 C5 H9 127.310 C5 C3 H7 133.968
C5 C4 H8 127.310
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.558      
2 C 0.062      
3 C 0.062      
4 C -0.049      
5 C -0.049      
6 H 0.140      
7 H 0.140      
8 H 0.126      
9 H 0.126      


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 -0.628 0.628
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.038 0.000 0.000
y 0.000 -24.495 0.000
z 0.000 0.000 -28.196
Traceless
 xyz
x -5.692 0.000 0.000
y 0.000 5.622 0.000
z 0.000 0.000 0.071
Polar
3z2-r20.141
x2-y2-7.543
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.268 0.000 0.000
y 0.000 8.808 0.000
z 0.000 0.000 8.023


<r2> (average value of r2) Å2
<r2> 81.954
(<r2>)1/2 9.053