return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C5H6O (3-Methylfuran)

using model chemistry: PBEPBE/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/6-311G*
 hartrees
Energy at 0K-269.065061
Energy at 298.15K-269.071505
HF Energy-269.065061
Nuclear repulsion energy220.095524
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/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3208 3175 1.80      
2 A' 3199 3165 2.70      
3 A' 3169 3136 3.52      
4 A' 3047 3015 21.70      
5 A' 2965 2935 38.22      
6 A' 1600 1583 2.43      
7 A' 1498 1482 11.44      
8 A' 1468 1452 8.00      
9 A' 1385 1371 4.35      
10 A' 1370 1355 1.87      
11 A' 1252 1239 3.47      
12 A' 1226 1213 2.30      
13 A' 1162 1149 15.31      
14 A' 1067 1056 15.54      
15 A' 1026 1015 20.06      
16 A' 987 977 5.56      
17 A' 955 945 1.91      
18 A' 866 857 21.53      
19 A' 631 625 1.99      
20 A' 309 305 1.00      
21 A" 3017 2986 22.83      
22 A" 1454 1439 8.08      
23 A" 1032 1021 2.29      
24 A" 788 780 3.42      
25 A" 729 722 66.56      
26 A" 676 669 3.88      
27 A" 607 601 9.50      
28 A" 603 596 9.24      
29 A" 255 252 3.87      
30 A" 122 121 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 20835.0 cm-1
Scaled (by 0.9896) Zero Point Vibrational Energy (zpe) 20618.3 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/6-311G*
ABC
0.29525 0.11143 0.08215

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.695 -1.471 0.000
C2 -1.083 -0.155 0.000
C3 0.673 -1.467 0.000
C4 0.000 0.683 0.000
C5 1.149 -0.187 0.000
C6 -0.006 2.181 0.000
H7 -2.157 0.012 0.000
H8 1.140 -2.447 0.000
H9 2.196 0.113 0.000
H10 -1.031 2.579 0.000
H11 0.508 2.588 0.886
H12 0.508 2.588 -0.886

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
O11.37121.36782.26292.24753.71602.08192.07893.29654.06374.32514.3251
C21.37122.19131.36972.23282.57271.08663.19293.29022.73513.29313.2931
C31.36782.19132.25231.36593.71013.19241.08622.19464.38994.15374.1537
C42.26291.36972.25231.44141.49812.25883.33112.26882.15862.16182.1618
C52.24752.23281.36591.44142.63453.31222.26031.08873.52222.98272.9827
C63.71602.57273.71011.49812.63453.05464.76773.02071.10001.10241.1024
H72.08191.08663.19242.25883.31223.05464.11294.35402.80313.81103.8110
H82.07893.19291.08623.33112.26034.76774.11292.76925.47515.15155.1515
H93.29653.29022.19462.26881.08873.02074.35402.76924.06173.12423.1242
H104.06372.73514.38992.15863.52221.10002.80315.47514.06171.77621.7762
H114.32513.29314.15372.16182.98271.10243.81105.15153.12421.77621.7722
H124.32513.29314.15372.16182.98271.10243.81105.15153.12421.77621.7722

picture of 3-Methylfuran state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C4 111.302 O1 C2 H7 115.296
O1 C3 C5 110.602 O1 C3 H8 115.331
C2 O1 C3 106.269 C2 C4 C5 105.154
C2 C4 C6 127.512 C3 C5 C4 106.673
C3 C5 H9 126.418 C4 C2 H7 133.402
C4 C5 H9 126.909 C4 C6 H10 111.451
C4 C6 H11 111.567 C4 C6 H12 111.567
C5 C3 H8 134.067 C5 C4 C6 127.334
H10 C6 H11 107.512 H10 C6 H12 107.512
H11 C6 H12 106.990
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.198      
2 C -0.051      
3 C -0.052      
4 C -0.004      
5 C -0.263      
6 C -0.720      
7 H 0.204      
8 H 0.208      
9 H 0.187      
10 H 0.226      
11 H 0.231      
12 H 0.231      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.395 0.746 0.000 0.844
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.159 -1.970 0.000
y -1.970 -33.430 0.000
z 0.000 0.000 -38.262
Traceless
 xyz
x 3.687 -1.970 0.000
y -1.970 1.781 0.000
z 0.000 0.000 -5.468
Polar
3z2-r2-10.937
x2-y21.271
xy-1.970
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.911 -0.196 0.000
y -0.196 10.153 0.000
z 0.000 0.000 4.795


<r2> (average value of r2) Å2
<r2> 145.041
(<r2>)1/2 12.043