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/6-31G*

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/6-31G*
 hartrees
Energy at 0K-269.005727
Energy at 298.15K-269.012160
HF Energy-269.005727
Nuclear repulsion energy219.742440
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' 3229 3183 1.47      
2 A' 3220 3174 1.74      
3 A' 3192 3146 2.37      
4 A' 3066 3022 16.51      
5 A' 2979 2936 34.12      
6 A' 1611 1588 1.73      
7 A' 1509 1488 11.82      
8 A' 1480 1459 6.27      
9 A' 1398 1378 1.72      
10 A' 1384 1364 3.03      
11 A' 1261 1243 3.92      
12 A' 1233 1216 1.96      
13 A' 1184 1167 14.94      
14 A' 1078 1063 11.99      
15 A' 1035 1021 18.84      
16 A' 991 977 4.51      
17 A' 958 944 2.12      
18 A' 863 851 20.26      
19 A' 631 622 2.03      
20 A' 308 303 0.96      
21 A" 3035 2992 19.04      
22 A" 1465 1444 6.30      
23 A" 1039 1025 3.46      
24 A" 797 786 5.74      
25 A" 732 722 52.30      
26 A" 677 668 2.04      
27 A" 607 598 10.12      
28 A" 604 596 2.01      
29 A" 257 253 2.66      
30 A" 122 120 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 20972.7 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 20672.8 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
0.29427 0.11108 0.08189

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.692 -1.474 0.000
C2 -1.084 -0.159 0.000
C3 0.678 -1.468 0.000
C4 0.000 0.684 0.000
C5 1.153 -0.184 0.000
C6 -0.014 2.185 0.000
H7 -2.159 0.009 0.000
H8 1.150 -2.448 0.000
H9 2.199 0.120 0.000
H10 -1.045 2.575 0.000
H11 0.499 2.595 0.888
H12 0.499 2.595 -0.888

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
O11.37231.36982.26662.25143.72112.08602.08323.30214.06464.33244.3324
C21.37232.19431.37302.23652.57601.08823.19783.29492.73423.29853.2985
C31.36982.19432.25591.36883.71713.19791.08782.19934.39444.16284.1628
C42.26661.37302.25591.44291.50062.26183.33612.27052.16052.16592.1659
C52.25142.23651.36881.44292.64023.31712.26381.09003.52732.99012.9901
C63.72112.57603.71711.50062.64023.05484.77623.02681.10241.10491.1049
H72.08601.08823.19792.26183.31713.05484.12094.35962.79703.81323.8132
H82.08323.19781.08783.33612.26384.77624.12092.77425.48135.16195.1619
H93.30213.29492.19932.27051.09003.02684.35962.77424.06853.13163.1316
H104.06462.73424.39442.16053.52731.10242.79705.48134.06851.78141.7814
H114.33243.29854.16282.16592.99011.10493.81325.16193.13161.78141.7763
H124.33243.29854.16282.16592.99011.10493.81325.16193.13161.78141.7763

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 111.305 O1 C2 H7 115.464
O1 C3 C5 110.584 O1 C3 H8 115.435
C2 O1 C3 106.297 C2 C4 C5 105.142
C2 C4 C6 127.340 C3 C5 C4 106.672
C3 C5 H9 126.505 C4 C2 H7 133.231
C4 C5 H9 126.823 C4 C6 H10 111.281
C4 C6 H11 111.559 C4 C6 H12 111.559
C5 C3 H8 133.981 C5 C4 C6 127.518
H10 C6 H11 107.611 H10 C6 H12 107.611
H11 C6 H12 106.992
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 O -0.360      
2 C 0.009      
3 C 0.050      
4 C 0.114      
5 C -0.210      
6 C -0.577      
7 H 0.153      
8 H 0.159      
9 H 0.140      
10 H 0.169      
11 H 0.176      
12 H 0.176      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.396 0.756 0.000 0.853
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.708 -1.916 0.000
y -1.916 -32.906 0.000
z 0.000 0.000 -37.324
Traceless
 xyz
x 3.407 -1.916 0.000
y -1.916 1.610 0.000
z 0.000 0.000 -5.017
Polar
3z2-r2-10.035
x2-y21.198
xy-1.916
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.497 -0.199 0.000
y -0.199 9.699 0.000
z 0.000 0.000 4.085


<r2> (average value of r2) Å2
<r2> 145.033
(<r2>)1/2 12.043