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

using model chemistry: QCISD(T)/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 QCISD(T)/6-31G*
 hartrees
Energy at 0K-268.551370
Energy at 298.15K-268.557838
HF Energy-267.660220
Nuclear repulsion energy219.934966
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 QCISD(T)/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' 3288 3154        
2 A' 3276 3143        
3 A' 3247 3115        
4 A' 3128 3001        
5 A' 3047 2923        
6 A' 1670 1602        
7 A' 1563 1500        
8 A' 1543 1480        
9 A' 1462 1402        
10 A' 1430 1371        
11 A' 1296 1243        
12 A' 1281 1229        
13 A' 1222 1172        
14 A' 1108 1063        
15 A' 1058 1015        
16 A' 1029 987        
17 A' 981 941        
18 A' 884 848        
19 A' 643 616        
20 A' 317 304        
21 A" 3112 2986        
22 A" 1526 1464        
23 A" 1078 1034        
24 A" 770 739        
25 A" 741 711        
26 A" 685 657        
27 A" 600 576        
28 A" 570 547        
29 A" 256 245        
30 A" 119 114        

Unscaled Zero Point Vibrational Energy (zpe) 21464.1 cm-1
Scaled (by 0.9593) Zero Point Vibrational Energy (zpe) 20590.5 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 QCISD(T)/6-31G*
ABC
0.29422 0.11135 0.08202

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.703 -1.470 0.000
C2 -1.084 -0.148 0.000
C3 0.670 -1.469 0.000
C4 0.000 0.682 0.000
C5 1.152 -0.193 0.000
C6 0.002 2.184 0.000
H7 -2.154 0.029 0.000
H8 1.137 -2.446 0.000
H9 2.197 0.102 0.000
H10 -1.024 2.575 0.000
H11 0.515 2.581 0.887
H12 0.515 2.581 -0.887

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
O11.37551.37252.26362.25133.72152.08602.08293.29814.05794.32234.3223
C21.37552.19571.36582.23662.57321.08413.19623.29062.72433.28583.2858
C31.37252.19572.25261.36353.71363.19621.08342.19084.38454.14904.1490
C42.26361.36582.25261.44661.50232.25093.32842.27192.15252.15862.1586
C52.25132.23661.36351.44662.64103.31322.25291.08593.52122.98162.9816
C63.72152.57323.71361.50232.64103.04884.76763.02521.09781.09891.0989
H72.08601.08413.19622.25093.31323.04884.11784.35132.78623.79843.7984
H82.08293.19621.08343.32842.25294.76764.11782.75985.46685.14285.1428
H93.29813.29062.19082.27191.08593.02524.35132.75984.06053.12403.1240
H104.05792.72434.38452.15253.52121.09782.78625.46684.06051.77641.7764
H114.32233.28584.14902.15862.98161.09893.79845.14283.12401.77641.7736
H124.32233.28584.14902.15862.98161.09893.79845.14283.12401.77641.7736

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 111.326 O1 C2 H7 115.505
O1 C3 C5 110.742 O1 C3 H8 115.517
C2 O1 C3 106.070 C2 C4 C5 105.327
C2 C4 C6 127.514 C3 C5 C4 106.534
C3 C5 H9 126.493 C4 C2 H7 133.168
C4 C5 H9 126.972 C4 C6 H10 110.792
C4 C6 H11 111.217 C4 C6 H12 111.217
C5 C3 H8 133.741 C5 C4 C6 127.159
H10 C6 H11 107.928 H10 C6 H12 107.928
H11 C6 H12 107.606
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability