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All results from a given calculation for C4H4O (Furan)

using model chemistry: wB97X-D/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-229.906383
Energy at 298.15K 
HF Energy-229.906383
Nuclear repulsion energy159.155021
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/LANL2DZ
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 3373 3373 0.22 174.64 0.12 0.22
2 A1 3332 3332 0.47 28.90 0.23 0.37
3 A1 1521 1521 18.76 55.16 0.25 0.40
4 A1 1428 1428 4.24 11.15 0.37 0.54
5 A1 1171 1171 0.55 25.21 0.29 0.45
6 A1 1092 1092 2.39 9.87 0.12 0.22
7 A1 1014 1014 57.80 3.61 0.27 0.43
8 A1 887 887 19.87 2.01 0.74 0.85
9 A2 947 947 0.00 0.44 0.75 0.86
10 A2 782 782 0.00 2.02 0.75 0.86
11 A2 625 625 0.00 0.00 0.75 0.86
12 B1 911 911 0.21 3.98 0.75 0.86
13 B1 786 786 174.39 0.54 0.75 0.86
14 B1 615 615 28.84 3.56 0.75 0.86
15 B2 3362 3362 1.58 14.39 0.75 0.86
16 B2 3319 3319 3.95 74.42 0.75 0.86
17 B2 1610 1610 0.67 0.51 0.75 0.86
18 B2 1302 1302 1.09 0.50 0.75 0.86
19 B2 1216 1216 28.46 1.15 0.75 0.86
20 B2 1066 1066 2.91 4.53 0.75 0.86
21 B2 902 902 0.04 7.23 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 15630.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 15630.2 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 wB97X-D/LANL2DZ
ABC
0.30725 0.30448 0.15293

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/LANL2DZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.173
C2 0.000 1.115 0.347
C3 0.000 -1.115 0.347
C4 0.000 0.724 -0.965
C5 0.000 -0.724 -0.965
H6 0.000 2.071 0.842
H7 0.000 -2.071 0.842
H8 0.000 1.372 -1.826
H9 0.000 -1.372 -1.826

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 H6 H7 H8 H9
O11.38771.38772.25742.25742.09682.09683.29813.2981
C21.38772.23091.37002.25951.07583.22432.18863.3034
C31.38772.23092.25951.37003.22431.07583.30342.1886
C42.25741.37002.25951.44732.25443.32801.07782.2657
C52.25742.25951.37001.44733.32802.25442.26571.0778
H62.09681.07583.22432.25443.32804.14122.75834.3559
H72.09683.22431.07583.32802.25444.14124.35592.7583
H83.29812.18863.30341.07782.26572.75834.35592.7444
H93.29813.30342.18862.26571.07784.35592.75832.7444

picture of Furan state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C4 109.888 O1 C2 H6 116.101
O1 C3 C5 109.888 O1 C3 H7 116.101
C2 O1 C3 106.988 C2 C4 C5 106.618
C2 C4 H8 126.385 C3 C5 C4 106.618
C3 C5 H9 126.385 C4 C2 H6 134.011
C4 C5 H9 126.997 C5 C3 H7 134.011
C5 C4 H8 126.997
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.263      
2 C -0.113      
3 C -0.113      
4 C -0.261      
5 C -0.261      
6 H 0.258      
7 H 0.258      
8 H 0.248      
9 H 0.248      


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 -1.117 1.117
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.250 0.000 0.000
y 0.000 -22.933 0.000
z 0.000 0.000 -28.441
Traceless
 xyz
x -6.563 0.000 0.000
y 0.000 7.413 0.000
z 0.000 0.000 -0.849
Polar
3z2-r2-1.698
x2-y2-9.317
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.714 0.000 0.000
y 0.000 6.943 0.000
z 0.000 0.000 6.723


<r2> (average value of r2) Å2
<r2> 82.692
(<r2>)1/2 9.093