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: HF/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/Def2TZVPP
 hartrees
Energy at 0K-267.770128
Energy at 298.15K-267.777154
HF Energy-267.770128
Nuclear repulsion energy223.449016
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 HF/Def2TZVPP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3430 3109 1.30      
2 A' 3420 3100 2.00      
3 A' 3389 3072 2.54      
4 A' 3234 2932 28.82      
5 A' 3164 2868 39.78      
6 A' 1796 1628 1.23      
7 A' 1682 1525 26.79      
8 A' 1615 1464 6.09      
9 A' 1547 1402 1.47      
10 A' 1521 1378 3.10      
11 A' 1387 1257 2.27      
12 A' 1370 1242 4.95      
13 A' 1292 1171 21.48      
14 A' 1175 1065 9.48      
15 A' 1141 1034 51.50      
16 A' 1099 996 2.95      
17 A' 1034 938 1.32      
18 A' 958 868 29.15      
19 A' 678 614 3.78      
20 A' 340 308 1.03      
21 A" 3210 2910 28.15      
22 A" 1600 1450 5.85      
23 A" 1163 1055 0.80      
24 A" 1005 911 0.85      
25 A" 917 831 49.40      
26 A" 854 774 24.35      
27 A" 680 617 1.52      
28 A" 657 595 29.92      
29 A" 287 260 3.64      
30 A" 160 145 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 22901.5 cm-1
Scaled (by 0.9064) Zero Point Vibrational Energy (zpe) 20758.0 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 HF/Def2TZVPP
ABC
0.30449 0.11422 0.08434

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.702 -1.430 0.000
C2 -1.066 -0.135 0.000
C3 0.635 -1.459 0.000
C4 0.000 0.669 0.000
C5 1.136 -0.222 0.000
C6 0.024 2.164 0.000
H7 -2.115 0.062 0.000
H8 1.090 -2.424 0.000
H9 2.171 0.045 0.000
H10 -0.980 2.567 0.000
H11 0.538 2.545 0.875
H12 0.538 2.545 -0.875

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
O11.34541.33732.21312.19933.66622.05492.04933.22914.00614.25474.2547
C21.34542.15611.33542.20432.54401.06683.14483.24202.70273.24363.2436
C31.33732.15612.22071.33453.67393.14261.06662.14964.33764.09964.0996
C42.21311.33542.22071.44391.49502.20023.27912.25832.13592.13872.1387
C52.19932.20431.33451.44392.63233.26342.20181.06853.50092.96312.9631
C63.66622.54403.67391.49502.63232.99864.70953.01571.08211.08391.0839
H72.05491.06683.14262.20023.26342.99864.05614.28542.74953.73743.7374
H82.04933.14481.06663.27912.20184.70954.05612.69495.40265.07515.0751
H93.22913.24202.14962.25831.06853.01574.28542.69494.03533.11093.1109
H104.00612.70274.33762.13593.50091.08212.74955.40264.03531.75241.7524
H114.25473.24364.09962.13872.96311.08393.73745.07513.11091.75241.7495
H124.25473.24364.09962.13872.96311.08393.73745.07513.11091.75241.7495

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 111.283 O1 C2 H7 116.357
O1 C3 C5 110.805 O1 C3 H8 116.516
C2 O1 C3 106.969 C2 C4 C5 104.888
C2 C4 C6 127.924 C3 C5 C4 106.056
C3 C5 H9 126.559 C4 C2 H7 132.360
C4 C5 H9 127.386 C4 C6 H10 110.937
C4 C6 H11 111.060 C4 C6 H12 111.060
C5 C3 H8 132.680 C5 C4 C6 127.188
H10 C6 H11 108.010 H10 C6 H12 108.010
H11 C6 H12 107.621
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.358      
2 C 0.081      
3 C 0.148      
4 C -0.015      
5 C -0.227      
6 C -0.155      
7 H 0.104      
8 H 0.112      
9 H 0.100      
10 H 0.068      
11 H 0.071      
12 H 0.071      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.521 0.853 0.000 1.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.467 -2.235 0.000
y -2.235 -33.732 0.000
z 0.000 0.000 -38.438
Traceless
 xyz
x 3.619 -2.235 0.000
y -2.235 1.720 0.000
z 0.000 0.000 -5.339
Polar
3z2-r2-10.677
x2-y21.266
xy-2.235
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.731 0.076 0.000
y 0.076 9.812 0.000
z 0.000 0.000 5.789


<r2> (average value of r2) Å2
<r2> 141.970
(<r2>)1/2 11.915