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: MP2=FULL/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2=FULL/STO-3G
 hartrees
Energy at 0K-264.678522
Energy at 298.15K-264.684866
HF Energy-264.328768
Nuclear repulsion energy216.508720
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' 3581 3183 5.15      
2 A' 3559 3164 9.32      
3 A' 3552 3158 8.78      
4 A' 3548 3154 0.97      
5 A' 3365 2991 4.26      
6 A' 1755 1560 1.29      
7 A' 1723 1531 1.22      
8 A' 1647 1464 10.57      
9 A' 1614 1434 3.35      
10 A' 1500 1333 18.46      
11 A' 1390 1236 10.13      
12 A' 1380 1226 1.54      
13 A' 1308 1163 6.64      
14 A' 1169 1039 0.58      
15 A' 1122 997 6.85      
16 A' 1110 987 3.94      
17 A' 1038 923 0.12      
18 A' 924 822 7.13      
19 A' 672 597 1.88      
20 A' 326 290 0.35      
21 A" 3531 3139 1.85      
22 A" 1721 1530 1.62      
23 A" 1183 1051 1.74      
24 A" 926 823 0.01      
25 A" 833 741 16.87      
26 A" 791 703 4.05      
27 A" 651 579 0.71      
28 A" 616 548 1.33      
29 A" 272 242 0.87      
30 A" 96 86 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 23450.8 cm-1
Scaled (by 0.8889) Zero Point Vibrational Energy (zpe) 20845.4 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
0.28561 0.10767 0.07938

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 -0.714 -1.509 0.000
C2 -1.096 -0.158 0.000
C3 0.689 -1.481 0.000
C4 0.000 0.691 0.000
C5 1.169 -0.186 0.000
C6 -0.010 2.223 0.000
H7 -2.177 0.034 0.000
H8 1.187 -2.460 0.000
H9 2.221 0.119 0.000
H10 -1.046 2.604 0.000
H11 0.505 2.623 0.892
H12 0.505 2.623 -0.892

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
O11.40361.40362.31252.30143.79792.12612.12553.35594.12634.39994.3999
C21.40362.22191.38612.26522.61731.09803.24173.32792.76273.33133.3313
C31.40362.22192.27851.38113.76963.24201.09802.21484.43834.20454.2045
C42.31251.38612.27851.46131.53252.27383.36662.29292.18052.18812.1881
C52.30142.26521.38111.46132.68213.35332.27381.09483.56223.02173.0217
C63.79792.61733.76961.53252.68213.08054.83343.06601.10371.10531.1053
H72.12611.09803.24202.27383.35333.08054.18744.39832.80813.83363.8336
H82.12553.24171.09803.36662.27384.83344.18742.77845.53415.20595.2059
H93.35593.32792.21482.29291.09483.06604.39832.77844.10393.16403.1640
H104.12632.76274.43832.18053.56221.10372.80815.53414.10391.78931.7893
H114.39993.33134.20452.18813.02171.10533.83365.20593.16401.78931.7848
H124.39993.33134.20452.18813.02171.10533.83365.20593.16401.78931.7848

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 111.975 O1 C2 H7 115.860
O1 C3 C5 111.466 O1 C3 H8 115.818
C2 O1 C3 104.651 C2 C4 C5 105.377
C2 C4 C6 127.398 C3 C5 C4 106.532
C3 C5 H9 126.518 C4 C2 H7 132.165
C4 C5 H9 126.950 C4 C6 H10 110.553
C4 C6 H11 111.058 C4 C6 H12 111.058
C5 C3 H8 132.716 C5 C4 C6 127.225
H10 C6 H11 108.188 H10 C6 H12 108.188
H11 C6 H12 107.673
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability