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/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-268.573278
Energy at 298.15K-268.579760
HF Energy-267.679458
Nuclear repulsion energy220.824758
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/6-31+G**
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' 3364 3160 0.28      
2 A' 3351 3148 0.34      
3 A' 3324 3122 1.20      
4 A' 3217 3021 16.26      
5 A' 3118 2928 32.23      
6 A' 1653 1553 0.21      
7 A' 1549 1455 3.11      
8 A' 1546 1452 23.15      
9 A' 1462 1374 1.73      
10 A' 1439 1352 3.82      
11 A' 1307 1228 1.65      
12 A' 1288 1209 1.24      
13 A' 1249 1173 26.90      
14 A' 1114 1047 12.39      
15 A' 1069 1004 29.45      
16 A' 1033 970 0.78      
17 A' 995 934 3.50      
18 A' 887 833 19.79      
19 A' 648 609 2.27      
20 A' 320 300 0.76      
21 A" 3204 3010 13.18      
22 A" 1524 1431 6.81      
23 A" 1077 1012 0.12      
24 A" 789 741 0.65      
25 A" 745 700 101.98      
26 A" 679 638 0.16      
27 A" 608 571 11.56      
28 A" 547 514 1.17      
29 A" 244 229 3.89      
30 A" 113 106 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 21731.8 cm-1
Scaled (by 0.9392) Zero Point Vibrational Energy (zpe) 20410.5 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 MP2=FULL/6-31+G**
ABC
0.29684 0.11219 0.08266

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.687 -1.469 0.000
C2 -1.082 -0.159 0.000
C3 0.679 -1.461 0.000
C4 0.000 0.680 0.000
C5 1.147 -0.177 0.000
C6 -0.016 2.176 0.000
H7 -2.145 0.008 0.000
H8 1.152 -2.427 0.000
H9 2.182 0.121 0.000
H10 -1.038 2.551 0.000
H11 0.488 2.573 0.880
H12 0.488 2.573 -0.880

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
O11.36871.36612.25672.24303.70612.07582.07343.28014.03524.30054.3005
C21.36872.19081.36942.22872.56641.07583.18373.27622.70993.27153.2715
C31.36612.19082.24711.36703.70303.18371.07502.18234.36434.13404.1340
C42.25671.36942.24711.43161.49532.24763.31412.25272.13892.14362.1436
C52.24302.22871.36701.43162.62403.29652.25011.07763.49452.96172.9617
C63.70612.56643.70301.49532.62403.03804.74853.00891.08861.08931.0893
H72.07581.07583.18372.24763.29653.03804.09884.32842.77293.77923.7792
H82.07343.18371.07503.31412.25014.74854.09882.74825.43815.12025.1202
H93.28013.27622.18232.25271.07763.00894.32842.74824.03393.10803.1080
H104.03522.70994.36432.13893.49451.08862.77295.43814.03391.76151.7615
H114.30053.27154.13402.14362.96171.08933.77925.12023.10801.76151.7608
H124.30053.27154.13402.14362.96171.08933.77925.12023.10801.76151.7608

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 111.012 O1 C2 H7 115.728
O1 C3 C5 110.308 O1 C3 H8 115.772
C2 O1 C3 106.465 C2 C4 C5 105.414
C2 C4 C6 127.189 C3 C5 C4 106.802
C3 C5 H9 126.027 C4 C2 H7 133.260
C4 C5 H9 127.171 C4 C6 H10 110.764
C4 C6 H11 111.095 C4 C6 H12 111.095
C5 C3 H8 133.920 C5 C4 C6 127.397
H10 C6 H11 107.952 H10 C6 H12 107.952
H11 C6 H12 107.844
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability