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All results from a given calculation for C5H8O (Furan, 2,3-dihydro-5-methyl-)

using model chemistry: MP2/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/cc-pVTZ
 hartrees
Energy at 0K-269.994584
Energy at 298.15K-270.003871
Nuclear repulsion energy238.826477
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/cc-pVTZ
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 3283 3117 2.34      
2 A 3191 3030 8.77      
3 A 3175 3015 25.26      
4 A 3157 2997 7.64      
5 A 3138 2980 19.99      
6 A 3080 2925 16.38      
7 A 3078 2922 46.74      
8 A 3067 2912 37.38      
9 A 1721 1634 41.18      
10 A 1528 1451 1.04      
11 A 1504 1428 1.02      
12 A 1504 1428 5.97      
13 A 1488 1412 7.41      
14 A 1423 1352 24.76      
15 A 1403 1333 2.74      
16 A 1329 1262 8.87      
17 A 1277 1213 33.92      
18 A 1269 1205 21.55      
19 A 1218 1157 6.32      
20 A 1212 1151 32.50      
21 A 1089 1034 0.32      
22 A 1067 1013 3.50      
23 A 1047 994 46.70      
24 A 1035 982 3.66      
25 A 980 931 14.28      
26 A 956 907 10.22      
27 A 922 876 25.88      
28 A 871 827 8.09      
29 A 736 699 30.30      
30 A 671 638 0.34      
31 A 634 602 1.30      
32 A 560 532 0.86      
33 A 333 316 2.17      
34 A 231 219 5.19      
35 A 183 174 4.08      
36 A 164 156 1.02      

Unscaled Zero Point Vibrational Energy (zpe) 26762.7 cm-1
Scaled (by 0.9495) Zero Point Vibrational Energy (zpe) 25411.2 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/cc-pVTZ
ABC
0.25355 0.10992 0.08070

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.347 -0.805 0.131
H2 -1.941 -1.440 -0.519
H3 -1.547 -1.059 1.174
O4 0.047 -1.092 -0.126
C5 -1.532 0.698 -0.102
H6 -2.229 1.125 0.617
H7 -1.907 0.918 -1.104
C8 -0.112 1.170 0.068
H9 0.215 2.193 0.132
C10 2.181 0.007 0.013
H11 2.530 -0.465 -0.905
H12 2.629 0.994 0.095
H13 2.515 -0.608 0.847
C14 0.702 0.109 0.002

Atom - Atom Distances (Å)
  C1 H2 H3 O4 C5 H6 H7 C8 H9 C10 H11 H12 H13 C14
C11.08571.09151.44611.53282.17762.19282.33043.38113.62264.02694.36383.93252.2474
H21.08571.77912.05672.21672.82022.42933.24094.27504.40174.59235.21404.73473.1080
H31.09151.77912.05762.17132.35483.03722.87243.84314.04844.61484.77684.10042.7922
O41.44612.05672.05762.38733.26332.96872.27523.29932.40462.67613.32602.69651.3734
C51.53282.21672.17132.38731.08841.09261.50662.31173.77934.30114.17604.35752.3136
H62.17762.82022.35483.26331.08841.76322.18822.71164.59025.24354.88775.05633.1633
H72.19282.42933.03722.96871.09261.76322.15952.76814.33534.65184.69245.06882.9479
C82.33043.24092.87242.27521.50662.18822.15951.07642.57143.25522.74593.26591.3390
H93.38114.27503.84313.29932.31172.71162.76811.07642.94243.67412.69503.69422.1447
C103.62264.40174.04842.40463.77934.59024.33532.57142.94241.08951.08641.08911.4826
H114.02694.59234.61482.67614.30115.24354.65183.25523.67411.08951.77171.75802.1194
H124.36385.21404.77683.32604.17604.88774.69242.74592.69501.08641.77171.77362.1220
H133.93254.73474.10042.69654.35755.05635.06883.26593.69421.08911.75801.77362.1243
C142.24743.10802.79221.37342.31363.16332.94791.33902.14471.48262.11942.12202.1243

picture of Furan, 2,3-dihydro-5-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O4 C14 105.677 C1 C5 H6 111.224
C1 C5 H7 112.193 C1 C5 C8 100.116
H2 C1 H3 109.592 H2 C1 O4 107.798
H2 C1 C5 114.593 H3 C1 O4 107.531
H3 C1 C5 110.530 O4 C1 C5 106.488
O4 C14 C8 114.026 O4 C14 C10 114.639
C5 C8 H9 126.205 C5 C8 C14 108.648
H6 C5 H7 107.895 H6 C5 C8 113.999
H7 C5 C8 111.379 C8 C14 C10 131.318
H9 C8 C14 124.880 H11 C10 H12 109.026
H11 C10 H13 107.600 H11 C10 C14 110.036
H12 C10 H13 109.233 H12 C10 C14 110.432
H13 C10 C14 110.454
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability