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

using model chemistry: PBEPBE/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at PBEPBE/6-31G*
 hartrees
Energy at 0K-230.931750
Energy at 298.15K-230.938795
Nuclear repulsion energy173.170201
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 PBEPBE/6-31G*
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 3204 3158 7.38      
2 A 3174 3129 4.74      
3 A 3058 3015 34.19      
4 A 3009 2966 35.49      
5 A 2981 2938 41.14      
6 A 2952 2909 45.89      
7 A 1651 1627 53.36      
8 A 1494 1472 0.18      
9 A 1473 1452 0.12      
10 A 1378 1358 3.00      
11 A 1295 1276 2.76      
12 A 1272 1254 6.41      
13 A 1216 1198 9.87      
14 A 1181 1164 10.99      
15 A 1142 1126 56.61      
16 A 1071 1056 33.08      
17 A 1045 1030 5.84      
18 A 993 979 4.22      
19 A 926 913 15.77      
20 A 916 903 32.57      
21 A 863 851 4.62      
22 A 827 816 2.35      
23 A 817 805 5.00      
24 A 683 674 28.84      
25 A 666 656 3.41      
26 A 439 433 21.98      
27 A 107 105 1.13      

Unscaled Zero Point Vibrational Energy (zpe) 19915.7 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 19630.9 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 PBEPBE/6-31G*
ABC
0.26879 0.25577 0.13866

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.771 2.207 0.091
C2 0.425 1.174 0.051
H3 2.290 -0.017 0.018
C4 1.202 0.079 0.009
O5 0.540 -1.120 -0.076
H6 -1.457 1.025 -1.047
H7 -1.679 1.157 0.711
C8 -1.021 0.735 -0.069
H9 -1.431 -1.383 -0.675
H10 -1.182 -1.144 1.086
C11 -0.878 -0.802 0.079

Atom - Atom Distances (Å)
  H1 C2 H3 C4 O5 H6 H7 C8 H9 H10 C11
H11.08952.69392.17283.33892.76692.73632.32454.28004.00423.4306
C21.08952.21371.34432.30092.18382.20461.51593.24193.00462.3670
H32.69392.21371.09212.07094.03244.19663.39664.02423.80343.2647
C42.17281.34431.09211.37223.01343.15552.31953.08842.88792.2602
O53.33892.30092.07091.37223.08713.27562.42452.07692.07731.4619
H62.76692.18384.03243.01343.08711.77681.10852.43573.05392.2220
H72.73632.20464.19663.15553.27561.77681.10482.90422.38432.2084
C82.32451.51593.39662.31952.42451.10851.10482.24022.21181.5502
H94.28003.24194.02423.08842.07692.43572.90422.24021.79411.1012
H104.00423.00463.80342.88792.07733.05392.38432.21181.79411.1055
C113.43062.36703.26472.26021.46192.22202.20841.55021.10121.1055

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 126.119 H1 C2 C8 125.506
C2 C4 H3 130.338 C2 C4 O5 115.778
C2 C8 H6 111.694 C2 C8 H7 113.612
C2 C8 C11 101.060 H3 C4 O5 113.879
C4 C2 C8 108.231 C4 O5 C11 105.739
O5 C11 C8 107.167 O5 C11 H9 107.419
O5 C11 H10 107.194 H6 C8 H7 106.793
H6 C8 C11 112.325 H7 C8 C11 111.464
C8 C11 H9 114.261 C8 C11 H10 111.687
H9 C11 H10 108.784
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.140      
2 C -0.200      
3 H 0.153      
4 C 0.110      
5 O -0.418      
6 H 0.165      
7 H 0.164      
8 C -0.356      
9 H 0.166      
10 H 0.163      
11 C -0.087      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.818 0.709 0.106 1.087
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.736 1.502 0.067
y 1.502 -30.594 -0.121
z 0.067 -0.121 -30.754
Traceless
 xyz
x 3.938 1.502 0.067
y 1.502 -1.849 -0.121
z 0.067 -0.121 -2.089
Polar
3z2-r2-4.178
x2-y23.858
xy1.502
xz0.067
yz-0.121


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.209 -0.158 0.048
y -0.158 7.114 0.006
z 0.048 0.006 4.372


<r2> (average value of r2) Å2
<r2> 94.834
(<r2>)1/2 9.738