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All results from a given calculation for C4H4O (Furan)

using model chemistry: B3LYPultrafine/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 B3LYPultrafine/6-311G*
 hartrees
Energy at 0K-230.075410
Energy at 298.15K 
HF Energy-230.075410
Nuclear repulsion energy160.953917
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 B3LYPultrafine/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 3282 3171 0.01 195.13 0.15 0.26
2 A1 3249 3139 2.93 41.17 0.24 0.39
3 A1 1516 1465 18.27 34.34 0.19 0.32
4 A1 1419 1371 3.84 16.28 0.40 0.57
5 A1 1169 1129 0.22 25.38 0.24 0.38
6 A1 1089 1052 13.37 6.49 0.16 0.28
7 A1 1016 982 44.06 1.08 0.17 0.29
8 A1 890 860 16.16 0.61 0.73 0.85
9 A2 867 837 0.00 1.04 0.75 0.86
10 A2 722 697 0.00 0.30 0.75 0.86
11 A2 615 594 0.00 0.02 0.75 0.86
12 B1 831 803 0.21 0.13 0.75 0.86
13 B1 751 726 108.52 0.88 0.75 0.86
14 B1 624 603 24.79 1.89 0.75 0.86
15 B2 3275 3165 4.05 19.08 0.75 0.86
16 B2 3238 3129 3.83 100.75 0.75 0.86
17 B2 1598 1544 0.78 0.43 0.75 0.86
18 B2 1292 1249 0.08 0.68 0.75 0.86
19 B2 1201 1161 19.88 0.81 0.75 0.86
20 B2 1061 1025 1.80 4.57 0.75 0.86
21 B2 897 867 0.39 3.64 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 15299.8 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 14784.2 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 B3LYPultrafine/6-311G*
ABC
0.31633 0.30968 0.15649

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.159
C2 0.000 1.093 0.347
C3 0.000 -1.093 0.347
C4 0.000 0.717 -0.958
C5 0.000 -0.717 -0.958
H6 0.000 2.047 0.849
H7 0.000 -2.047 0.849
H8 0.000 1.373 -1.816
H9 0.000 -1.373 -1.816

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 H6 H7 H8 H9
O11.36221.36222.23512.23512.07022.07023.27623.2762
C21.36222.18691.35782.23181.07773.18032.18033.2802
C31.36222.18692.23181.35783.18031.07773.28022.1803
C42.23511.35782.23181.43472.24353.30251.07972.2596
C52.23512.23181.35781.43473.30252.24352.25961.0797
H62.07021.07773.18032.24353.30254.09382.74864.3356
H72.07023.18031.07773.30252.24354.09384.33562.7486
H83.27622.18033.28021.07972.25962.74864.33562.7463
H93.27623.28022.18032.25961.07974.33562.74862.7463

picture of Furan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C4 110.523 O1 C2 H6 115.602
O1 C3 C5 110.523 O1 C3 H7 115.602
C2 O1 C3 106.788 C2 C4 C5 106.083
C2 C4 H8 126.512 C3 C5 C4 106.083
C3 C5 H9 126.512 C4 C2 H6 133.876
C4 C5 H9 127.405 C5 C3 H7 133.876
C5 C4 H8 127.405
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.227      
2 C -0.040      
3 C -0.040      
4 C -0.262      
5 C -0.262      
6 H 0.215      
7 H 0.215      
8 H 0.200      
9 H 0.200      


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 -31.954 0.000 0.000
y 0.000 -23.955 0.000
z 0.000 0.000 -27.951
Traceless
 xyz
x -6.001 0.000 0.000
y 0.000 5.997 0.000
z 0.000 0.000 0.004
Polar
3z2-r20.008
x2-y2-7.998
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.233 0.000 0.000
y 0.000 7.480 0.000
z 0.000 0.000 6.968


<r2> (average value of r2) Å2
<r2> 81.367
(<r2>)1/2 9.020