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

using model chemistry: MP2/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/6-31G**
 hartrees
Energy at 0K-269.714706
Energy at 298.15K-269.723975
HF Energy-268.845071
Nuclear repulsion energy238.247306
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 MP2/6-31G**
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 3331 3119 2.88      
2 A 3246 3040 11.46      
3 A 3220 3016 32.76      
4 A 3218 3014 11.28      
5 A 3183 2980 23.27      
6 A 3132 2933 16.31      
7 A 3123 2925 47.75      
8 A 3115 2917 40.22      
9 A 1756 1645 32.57      
10 A 1571 1471 0.23      
11 A 1550 1452 0.45      
12 A 1550 1451 4.03      
13 A 1530 1433 5.96      
14 A 1465 1372 14.93      
15 A 1435 1343 7.57      
16 A 1366 1279 11.89      
17 A 1303 1221 35.05      
18 A 1284 1202 17.39      
19 A 1240 1161 20.63      
20 A 1230 1152 19.23      
21 A 1113 1042 0.34      
22 A 1088 1019 2.80      
23 A 1064 997 42.13      
24 A 1057 990 5.06      
25 A 994 931 15.72      
26 A 972 910 11.51      
27 A 930 871 22.34      
28 A 886 830 9.89      
29 A 736 689 25.66      
30 A 679 636 0.50      
31 A 636 596 1.66      
32 A 545 510 2.97      
33 A 334 313 2.07      
34 A 229 215 4.43      
35 A 176 165 4.64      
36 A 162 152 0.99      

Unscaled Zero Point Vibrational Energy (zpe) 27224.4 cm-1
Scaled (by 0.9365) Zero Point Vibrational Energy (zpe) 25495.7 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 MP2/6-31G**
ABC
0.25223 0.10940 0.08030

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.350 -0.808 0.132
H2 -1.943 -1.445 -0.519
H3 -1.554 -1.064 1.175
O4 0.048 -1.095 -0.127
C5 -1.534 0.698 -0.103
H6 -2.238 1.125 0.611
H7 -1.910 0.913 -1.107
C8 -0.115 1.174 0.071
H9 0.201 2.202 0.130
C10 2.188 0.007 0.013
H11 2.536 -0.469 -0.904
H12 2.640 0.992 0.094
H13 2.516 -0.608 0.850
C14 0.705 0.115 -0.000

Atom - Atom Distances (Å)
  C1 H2 H3 O4 C5 H6 H7 C8 H9 C10 H11 H12 H13 C14
C11.08761.09301.45061.53472.18042.19372.33533.38583.63194.03594.37703.93742.2567
H21.08761.77962.06002.22092.82312.43123.24794.28064.41094.60085.22714.73973.1174
H31.09301.77962.06452.17642.36183.04082.88013.85194.06124.62624.79384.10842.8062
O41.45062.06002.06452.39093.27112.97112.28293.31022.41022.68043.33462.69861.3821
C51.53472.22092.17642.39091.09031.09391.50642.30843.78704.30904.18894.36112.3163
H62.18042.82312.36183.27111.09031.76242.19112.70984.60425.25654.90745.06653.1719
H72.19372.43123.04082.97111.09391.76242.16232.76564.34344.66014.70625.07322.9499
C82.33533.24792.88012.28291.50642.19112.16231.07752.58273.26782.76143.27261.3419
H93.38584.28063.85193.31022.30842.70982.76561.07752.96303.69502.72253.71152.1513
C103.63194.41094.06122.41023.78704.60424.34342.58272.96301.08981.08741.08951.4862
H114.03594.60084.62622.68044.30905.25654.66013.26783.69501.08981.77221.75962.1231
H124.37705.22714.79383.33464.18894.90744.70622.76142.72251.08741.77221.77412.1262
H133.93744.73974.10842.69864.36115.06655.07323.27263.71151.08951.75961.77412.1275
C142.25673.11742.80621.38212.31633.17192.94991.34192.15131.48622.12312.12622.1275

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 105.596 C1 C5 H6 111.202
C1 C5 H7 112.048 C1 C5 C8 100.333
H2 C1 H3 109.393 H2 C1 O4 107.649
H2 C1 C5 114.692 H3 C1 O4 107.681
H3 C1 C5 110.716 O4 C1 C5 106.400
O4 C14 C8 113.867 O4 C14 C10 114.287
C5 C8 H9 125.790 C5 C8 C14 108.689
H6 C5 H7 107.588 H6 C5 C8 114.138
H7 C5 C8 111.533 C8 C14 C10 131.840
H9 C8 C14 125.186 H11 C10 H12 108.972
H11 C10 H13 107.691 H11 C10 C14 110.059
H12 C10 H13 109.174 H12 C10 C14 110.456
H13 C10 C14 110.428
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability