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All results from a given calculation for C5H6O (2-methylfuran)

using model chemistry: MP2=FULL/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 2 yes CS 1A'

Conformer 1 (C1)

Jump to S1C2
Vibrational Frequencies calculated at MP2=FULL/STO-3G
Rotational Constants (cm-1) from geometry optimized at MP2=FULL/STO-3G
See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/STO-3G
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at MP2=FULL/STO-3G
 hartrees
Energy at 0K-264.680959
Energy at 298.15K-264.687284
HF Energy-264.332026
Nuclear repulsion energy217.716271
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 MP2=FULL/STO-3G
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' 3586 3188 8.69      
2 A' 3569 3172 7.50      
3 A' 3555 3160 0.27      
4 A' 3552 3158 6.30      
5 A' 3368 2994 2.35      
6 A' 1742 1549 1.22      
7 A' 1711 1521 1.76      
8 A' 1638 1456 11.76      
9 A' 1603 1425 8.89      
10 A' 1536 1366 6.86      
11 A' 1432 1273 19.86      
12 A' 1341 1192 4.95      
13 A' 1255 1116 7.36      
14 A' 1187 1055 2.30      
15 A' 1117 993 2.24      
16 A' 1084 964 0.40      
17 A' 987 877 4.44      
18 A' 942 837 2.02      
19 A' 687 611 1.94      
20 A' 332 295 0.57      
21 A" 3533 3141 0.94      
22 A" 1710 1520 2.17      
23 A" 1180 1049 1.76      
24 A" 933 829 0.04      
25 A" 880 782 3.33      
26 A" 791 703 17.05      
27 A" 647 575 0.09      
28 A" 619 550 0.48      
29 A" 251 224 1.50      
30 A" 90 80 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 23429.2 cm-1
Scaled (by 0.8889) Zero Point Vibrational Energy (zpe) 20826.2 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 MP2=FULL/STO-3G
ABC
0.27994 0.11346 0.08200

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 1.084 -0.249 0.000
C2 0.000 0.651 0.000
C3 0.503 -1.525 0.000
C4 -1.205 -0.035 0.000
C5 -0.877 -1.452 0.000
C6 0.348 2.142 0.000
H7 1.203 -2.371 0.000
H8 -2.203 0.413 0.000
H9 -1.576 -2.294 0.000
H10 -0.583 2.733 0.000
H11 0.937 2.417 0.894
H12 0.937 2.417 -0.894

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
O11.40931.40212.29942.30092.50242.12503.35403.35543.41732.81592.8159
C21.40932.23331.38662.27801.53153.25252.21633.34012.16282.19002.1900
C31.40212.23332.26641.38233.67071.09803.32882.21654.39494.06534.0653
C42.29941.38662.26641.45362.67463.35471.09462.28912.83763.37653.3765
C52.30092.27801.38231.45363.79692.27462.28801.09454.19524.36524.3652
C62.50241.53153.67072.67463.79694.59363.08224.83561.10321.10541.1054
H72.12503.25251.09803.35472.27464.59364.39952.78005.40804.87784.8778
H83.35402.21633.32881.09462.28803.08224.39952.77902.82993.83113.8311
H93.35543.34012.21652.28911.09454.83562.78002.77905.12465.41365.4136
H103.41732.16284.39492.83764.19521.10325.40802.82995.12461.79211.7921
H112.81592.19004.06533.37654.36521.10544.87783.83115.41361.79211.7883
H122.81592.19004.06533.37654.36521.10544.87783.83115.41361.79211.7883

picture of 2-methylfuran state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C4 110.649 O1 C2 C6 116.561
O1 C3 C5 111.449 O1 C3 H7 115.883
C2 O1 C3 105.191 C2 C4 C5 106.633
C2 C4 H8 126.161 C2 C6 H10 109.270
C2 C6 H11 111.281 C2 C6 H12 111.281
C3 C5 C6 74.226 C3 C5 H9 126.602
C4 C2 C6 132.790 C4 C5 H9 127.320
C5 C3 H7 132.668 C5 C4 H8 127.206
H10 C6 H11 108.473 H10 C6 H12 108.473
H11 C6 H12 107.978
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability