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: CCD/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 CCD/6-31G*
 hartrees
Energy at 0K-268.509172
Energy at 298.15K-268.515769
HF Energy-267.661951
Nuclear repulsion energy220.813223
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 CCD/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' 3318 3140 1.63      
2 A' 3306 3129 1.82      
3 A' 3278 3103 1.52      
4 A' 3159 2990 17.69      
5 A' 3075 2910 26.37      
6 A' 1712 1621 0.31      
7 A' 1599 1514 17.87      
8 A' 1554 1471 6.28      
9 A' 1477 1398 2.81      
10 A' 1455 1377 3.70      
11 A' 1318 1247 3.96      
12 A' 1302 1232 1.18      
13 A' 1269 1201 31.52      
14 A' 1129 1069 9.50      
15 A' 1084 1026 34.25      
16 A' 1043 987 2.51      
17 A' 996 942 1.35      
18 A' 902 853 23.32      
19 A' 653 619 2.82      
20 A' 322 305 0.87      
21 A" 3143 2975 19.27      
22 A" 1536 1454 6.02      
23 A" 1091 1032 1.14      
24 A" 810 767 1.23      
25 A" 770 729 60.08      
26 A" 725 686 0.94      
27 A" 615 582 18.25      
28 A" 593 561 1.42      
29 A" 262 248 2.31      
30 A" 127 121 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 21810.8 cm-1
Scaled (by 0.9465) Zero Point Vibrational Energy (zpe) 20643.9 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 CCD/6-31G*
ABC
0.29677 0.11212 0.08264

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.700 -1.461 0.000
C2 -1.079 -0.148 0.000
C3 0.664 -1.465 0.000
C4 0.000 0.678 0.000
C5 1.147 -0.197 0.000
C6 0.003 2.178 0.000
H7 -2.146 0.032 0.000
H8 1.131 -2.440 0.000
H9 2.191 0.095 0.000
H10 -1.020 2.570 0.000
H11 0.516 2.574 0.885
H12 0.516 2.574 -0.885

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12
O11.36711.36412.25132.23883.70692.07872.07603.28344.04414.30684.3068
C21.36712.18451.35902.22722.56551.08193.18393.27922.71863.27693.2769
C31.36412.18452.24341.35673.70223.18371.08132.18264.37204.13744.1374
C42.25131.35902.24341.44331.49982.24113.31702.26762.14922.15512.1551
C52.23882.22721.35671.44332.63643.30152.24311.08363.51492.97702.9770
C63.70692.56553.70221.49982.63643.03734.75383.02121.09581.09691.0969
H72.07871.08193.18372.24113.30153.03734.10464.33762.77663.78583.7858
H82.07603.18391.08133.31702.24314.75384.10462.74755.45225.12885.1288
H93.28343.27922.18262.26761.08363.02124.33762.74754.05453.12073.1207
H104.04412.71864.37202.14923.51491.09582.77665.45224.05451.77281.7728
H114.30683.27694.13742.15512.97701.09693.78585.12883.12071.77281.7704
H124.30683.27694.13742.15512.97701.09693.78585.12883.12071.77281.7704

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 111.343 O1 C2 H7 115.669
O1 C3 C5 110.743 O1 C3 H8 115.709
C2 O1 C3 106.232 C2 C4 C5 105.226
C2 C4 C6 127.567 C3 C5 C4 106.455
C3 C5 H9 126.492 C4 C2 H7 132.988
C4 C5 H9 127.053 C4 C6 H10 110.830
C4 C6 H11 111.233 C4 C6 H12 111.233
C5 C3 H8 133.548 C5 C4 C6 127.207
H10 C6 H11 107.893 H10 C6 H12 107.893
H11 C6 H12 107.603
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability