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

using model chemistry: MP2=FULL/6-311G*

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=FULL/6-311G*
 hartrees
Energy at 0K-269.867865
Energy at 298.15K-269.877168
HF Energy-268.885988
Nuclear repulsion energy238.549555
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/6-311G*
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 3276 3102 3.28      
2 A 3196 3027 11.62      
3 A 3183 3015 31.35      
4 A 3163 2995 10.65      
5 A 3142 2976 24.09      
6 A 3085 2922 17.09      
7 A 3082 2919 52.22      
8 A 3069 2906 41.23      
9 A 1728 1637 37.40      
10 A 1552 1470 1.47      
11 A 1532 1451 1.64      
12 A 1526 1446 7.65      
13 A 1508 1428 10.50      
14 A 1452 1375 23.07      
15 A 1426 1350 4.92      
16 A 1352 1280 9.48      
17 A 1295 1227 45.37      
18 A 1280 1213 16.72      
19 A 1235 1169 5.84      
20 A 1226 1161 35.81      
21 A 1104 1045 0.44      
22 A 1077 1020 4.30      
23 A 1061 1005 45.66      
24 A 1047 992 3.68      
25 A 987 935 12.78      
26 A 968 917 11.90      
27 A 933 884 25.60      
28 A 885 838 8.74      
29 A 725 686 34.52      
30 A 671 635 0.86      
31 A 637 604 1.76      
32 A 561 531 1.63      
33 A 336 318 2.38      
34 A 233 221 4.52      
35 A 188 178 6.80      
36 A 168 159 0.46      

Unscaled Zero Point Vibrational Energy (zpe) 26942.9 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 25517.6 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/6-311G*
ABC
0.25287 0.10970 0.08066

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.341 -0.807 0.144
H2 -1.944 -1.462 -0.484
H3 -1.517 -1.042 1.200
O4 0.048 -1.089 -0.138
C5 -1.537 0.693 -0.111
H6 -2.252 1.127 0.592
H7 -1.898 0.895 -1.127
C8 -0.118 1.173 0.076
H9 0.202 2.204 0.142
C10 2.184 0.010 0.014
H11 2.535 -0.459 -0.909
H12 2.637 0.997 0.105
H13 2.515 -0.616 0.847
C14 0.701 0.111 -0.001

Atom - Atom Distances (Å)
  C1 H2 H3 O4 C5 H6 H7 C8 H9 C10 H11 H12 H13 C14
C11.08981.09591.44511.53362.18372.19642.32783.38293.62034.03144.36843.92362.2432
H21.08981.78752.05612.22422.82022.44393.25404.29354.41054.60965.23304.72943.1150
H31.09591.78752.05952.17422.36863.05172.85053.82194.02604.60514.75574.06962.7731
O41.44512.05612.05952.38483.27602.95032.27793.30862.40662.67903.33412.69761.3729
C51.53362.22422.17422.38481.09291.09721.50932.31733.78454.30594.19074.36372.3147
H62.18372.82022.36863.27601.09291.77062.19602.71714.61035.26124.91515.08123.1785
H72.19642.44393.05172.95031.09721.77062.16582.78034.32944.64014.70065.06442.9390
C82.32783.25402.85052.27791.50932.19602.16581.08172.57943.26642.76113.27461.3432
H93.38294.29353.82193.30862.31732.71712.78031.08172.95943.69322.71853.71432.1567
C103.62034.41054.02602.40663.78454.61034.32942.57942.95941.09321.09031.09281.4862
H114.03144.60964.60512.67904.30595.26124.64013.26643.69321.09321.77741.76282.1243
H124.36845.23304.75573.33414.19074.91514.70062.76112.71851.09031.77741.77952.1323
H133.92364.72944.06962.69764.36375.08125.06443.27463.71431.09281.76281.77952.1296
C142.24323.11502.77311.37292.31473.17852.93901.34322.15671.48622.12432.13232.1296

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 105.477 C1 C5 H6 111.388
C1 C5 H7 112.141 C1 C5 C8 99.809
H2 C1 H3 109.731 H2 C1 O4 107.583
H2 C1 C5 114.902 H3 C1 O4 107.497
H3 C1 C5 110.446 O4 C1 C5 106.339
O4 C14 C8 113.997 O4 C14 C10 114.593
C5 C8 H9 126.052 C5 C8 C14 108.341
H6 C5 H7 107.894 H6 C5 C8 114.156
H7 C5 C8 111.406 C8 C14 C10 131.401
H9 C8 C14 125.245 H11 C10 H12 108.973
H11 C10 H13 107.485 H11 C10 C14 109.954
H12 C10 H13 109.192 H12 C10 C14 110.767
H13 C10 C14 110.396
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability