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All results from a given calculation for C4H6O (Furan, 2,3-dihydro-)

using model chemistry: wB97X-D/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at wB97X-D/3-21G*
 hartrees
Energy at 0K-229.882426
Energy at 298.15K-229.889573
HF Energy-229.882426
Nuclear repulsion energy172.332180
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/3-21G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3322 3149 3.46      
2 A 3292 3120 0.62      
3 A 3186 3020 31.26      
4 A 3141 2977 6.13      
5 A 3129 2966 34.59      
6 A 3102 2940 26.15      
7 A 1709 1620 39.28      
8 A 1579 1497 1.42      
9 A 1553 1472 1.12      
10 A 1414 1340 2.86      
11 A 1346 1276 15.39      
12 A 1325 1256 13.25      
13 A 1292 1225 0.78      
14 A 1226 1162 1.73      
15 A 1193 1131 30.32      
16 A 1095 1038 0.28      
17 A 1081 1024 79.66      
18 A 1005 952 1.55      
19 A 973 922 2.04      
20 A 933 884 12.92      
21 A 917 870 38.69      
22 A 855 810 1.02      
23 A 852 807 1.94      
24 A 747 708 55.24      
25 A 717 679 3.61      
26 A 463 439 29.99      
27 A 65 62 2.40      

Unscaled Zero Point Vibrational Energy (zpe) 20756.5 cm-1
Scaled (by 0.9478) Zero Point Vibrational Energy (zpe) 19673.0 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 wB97X-D/3-21G*
ABC
0.26353 0.25519 0.13637

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.257 1.956 0.059
C2 0.694 1.039 0.032
H3 2.236 -0.508 0.017
C4 1.207 -0.189 0.007
O5 0.273 -1.215 -0.049
H6 -1.205 1.361 -0.989
H7 -1.325 1.479 0.776
C8 -0.828 0.951 -0.045
H9 -1.689 -0.979 -0.754
H10 -1.498 -0.865 1.016
C11 -1.065 -0.588 0.051

Atom - Atom Distances (Å)
  H1 C2 H3 C4 O5 H6 H7 C8 H9 H10 C11
H11.07632.65212.14623.32192.74092.72092.31664.23714.05683.4436
C21.07632.18471.33092.29442.17992.19591.52653.21993.06532.3957
H32.65212.18471.07812.08774.04364.14793.39494.02773.88183.3025
C42.14621.33091.07811.38843.03523.12742.33313.09622.96452.3067
O53.32192.29442.08771.38843.11573.23892.43022.09792.09571.4813
H62.74092.17994.04363.03523.11571.77241.09632.40173.01002.2131
H72.72092.19594.14793.12743.23891.77241.09452.91852.36242.2054
C82.31661.52653.39492.33312.43021.09631.09452.22972.20691.5597
H94.23713.21994.02773.09622.09792.40172.91852.22971.78421.0910
H104.05683.06533.88182.96452.09573.01002.36242.20691.78421.0937
C113.44362.39573.30252.30671.48132.21312.20541.55971.09101.0937

picture of Furan, 2,3-dihydro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C2 C4 125.817 H1 C2 C8 124.858
C2 C4 H3 129.860 C2 C4 O5 115.059
C2 C8 H6 111.370 C2 C8 H7 112.778
C2 C8 C11 101.830 H3 C4 O5 115.080
C4 C2 C8 109.281 C4 O5 C11 106.953
O5 C11 C8 106.070 O5 C11 H9 108.341
O5 C11 H10 108.006 H6 C8 H7 108.004
H6 C8 C11 111.675 H7 C8 C11 111.175
C8 C11 H9 113.348 C8 C11 H10 111.343
H9 C11 H10 109.505
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.215      
2 C -0.305      
3 H 0.247      
4 C 0.102      
5 O -0.508      
6 H 0.230      
7 H 0.230      
8 C -0.483      
9 H 0.232      
10 H 0.232      
11 C -0.191      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.796 1.229 -0.001 1.465
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.533 1.057 -0.001
y 1.057 -31.595 0.001
z -0.001 0.001 -30.980
Traceless
 xyz
x 5.755 1.057 -0.001
y 1.057 -3.338 0.001
z -0.001 0.001 -2.417
Polar
3z2-r2-4.833
x2-y26.062
xy1.057
xz-0.001
yz0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.417 -0.176 -0.000
y -0.176 6.570 0.000
z -0.000 0.000 3.701


<r2> (average value of r2) Å2
<r2> 95.661
(<r2>)1/2 9.781