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

using model chemistry: CBS-Q

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CBS-Q
 hartrees
Energy at 0K-268.872750
Energy at 298.15K-268.866485
HF Energy-267.660199
Nuclear repulsion energy222.776394
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 CBS-Q
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' 3461 3461 2.75      
2 A' 3451 3451 3.44      
3 A' 3415 3415 3.51      
4 A' 3265 3265 29.73      
5 A' 3186 3186 39.92      
6 A' 1818 1818 1.82      
7 A' 1702 1702 28.30      
8 A' 1635 1635 4.28      
9 A' 1560 1560 1.18      
10 A' 1529 1529 2.73      
11 A' 1383 1383 3.13      
12 A' 1377 1377 5.55      
13 A' 1303 1303 22.96      
14 A' 1181 1181 10.34      
15 A' 1144 1144 54.40      
16 A' 1103 1103 1.63      
17 A' 1039 1039 1.04      
18 A' 961 961 29.37      
19 A' 680 680 4.03      
20 A' 336 336 1.07      
21 A" 3244 3244 33.39      
22 A" 1619 1619 4.62      
23 A" 1165 1165 1.19      
24 A" 983 983 0.13      
25 A" 906 906 40.64      
26 A" 848 848 14.62      
27 A" 679 679 0.32      
28 A" 658 658 28.27      
29 A" 286 286 2.31      
30 A" 156 156 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 23035.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 23035.7 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 CBS-Q
ABC
0.29643 0.11156 0.08231

See section I.F.4 to change rotational constant units
Geometric Data calculated at CBS-Q

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.701 -1.437 0.000
C2 -1.068 -0.141 0.000
C3 0.639 -1.462 0.000
C4 0.000 0.671 0.000
C5 1.142 -0.219 0.000
C6 0.018 2.173 0.000
H7 -2.123 0.046 0.000
H8 1.091 -2.433 0.000
H9 2.181 0.053 0.000
H10 -0.992 2.576 0.000
H11 0.532 2.561 0.878
H12 0.532 2.561 -0.878

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
O11.34661.33982.22172.20863.68032.05462.04993.24374.02344.27424.2742
C21.34662.15791.34182.21112.55581.07173.14843.25422.71833.26023.2602
C31.33982.15792.22681.34043.68713.14661.07152.16134.35464.11834.1183
C42.22171.34182.22681.44841.50132.21323.29082.26672.14732.14992.1499
C52.20862.21111.34041.44842.64313.27572.21451.07383.51672.97832.9783
C63.68032.55583.68711.50132.64313.01764.72933.02851.08711.08871.0887
H72.05461.07173.14662.21323.27573.01764.05884.30372.77153.76073.7607
H82.04993.14841.07153.29082.21454.72934.05882.71475.42495.10115.1011
H93.24373.25422.16132.26671.07383.02854.30372.71474.05343.12683.1268
H104.02342.71834.35462.14733.51671.08712.77155.42494.05341.75851.7585
H114.27423.26024.11832.14992.97831.08873.76075.10113.12681.75851.7553
H124.27423.26024.11832.14992.97831.08873.76075.10113.12681.75851.7553

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 111.458 O1 C2 H7 115.868
O1 C3 C5 110.979 O1 C3 H8 116.007
C2 O1 C3 106.883 C2 C4 C5 104.770
C2 C4 C6 127.952 C3 C5 C4 105.910
C3 C5 H9 126.735 C4 C2 H7 132.673
C4 C5 H9 127.355 C4 C6 H10 111.102
C4 C6 H11 111.214 C4 C6 H12 111.214
C5 C3 H8 133.014 C5 C4 C6 127.278
H10 C6 H11 107.845 H10 C6 H12 107.845
H11 C6 H12 107.448
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability