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All results from a given calculation for C5H10O (2H-Pyran, tetrahydro-)

using model chemistry: MP2/CEP-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/CEP-31G*
 hartrees
Energy at 0K-49.731547
Energy at 298.15K-49.744424
HF Energy-48.948310
Nuclear repulsion energy144.341707
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/CEP-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' 3167 3007 115.99      
2 A' 3157 2997 13.77      
3 A' 3144 2985 20.85      
4 A' 3088 2932 21.39      
5 A' 3077 2921 29.24      
6 A' 3041 2887 112.73      
7 A' 1539 1462 4.70      
8 A' 1524 1447 4.16      
9 A' 1510 1433 9.64      
10 A' 1443 1370 11.49      
11 A' 1401 1330 0.47      
12 A' 1337 1270 2.94      
13 A' 1304 1238 4.65      
14 A' 1196 1135 2.99      
15 A' 1061 1008 10.88      
16 A' 1036 983 8.73      
17 A' 901 855 20.92      
18 A' 869 825 7.85      
19 A' 834 792 3.74      
20 A' 561 533 3.81      
21 A' 430 409 0.89      
22 A' 410 389 5.64      
23 A' 256 243 4.65      
24 A" 3162 3002 1.34      
25 A" 3152 2992 59.30      
26 A" 3086 2930 59.31      
27 A" 3040 2886 33.24      
28 A" 1525 1448 0.64      
29 A" 1502 1426 3.03      
30 A" 1415 1343 4.76      
31 A" 1411 1339 4.67      
32 A" 1361 1292 1.98      
33 A" 1315 1248 5.17      
34 A" 1243 1180 33.31      
35 A" 1204 1143 0.98      
36 A" 1148 1090 62.90      
37 A" 1079 1024 21.74      
38 A" 995 944 5.56      
39 A" 905 860 0.44      
40 A" 822 780 0.06      
41 A" 456 432 0.02      
42 A" 242 230 0.63      

Unscaled Zero Point Vibrational Energy (zpe) 32672.4 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 31019.2 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/CEP-31G*
ABC
0.15392 0.14674 0.08545

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 1.448 0.000
C2 0.067 -1.479 0.000
H3 -1.004 -1.764 0.000
H4 0.660 -2.412 0.000
C5 0.372 -0.639 1.261
C6 0.372 -0.639 -1.261
C7 -0.367 0.712 -1.182
C8 -0.367 0.712 1.182
H9 0.058 -1.174 2.178
H10 0.058 -1.174 -2.178
H11 1.458 -0.445 1.330
H12 1.458 -0.445 -1.330
H13 -1.467 0.545 -1.185
H14 -1.467 0.545 1.185
H15 -0.105 1.366 -2.031
H16 -0.105 1.366 2.031

Atom - Atom Distances (Å)
  O1 C2 H3 H4 C5 C6 C7 C8 H9 H10 H11 H12 H13 H14 H15 H16
O12.92813.36573.91652.46692.46691.43991.43993.40993.40992.73522.73522.09132.09132.03502.0350
C22.92811.10781.10571.54601.54602.52702.52702.19962.19962.18482.18482.80222.80223.49943.4994
H33.36571.10781.78542.17952.17952.81662.81662.49432.49433.09353.09352.63632.63633.83763.8376
H43.91651.10571.78542.19512.19513.49473.49472.57672.57672.50472.50473.83033.83034.35674.3567
C52.46691.54602.17952.19512.52252.88791.54221.10743.49521.10562.81603.28162.18823.88362.1995
C62.46691.54602.17952.19512.52251.54222.88793.49521.10742.81601.10562.18823.28162.19953.8836
C71.43992.52702.81663.49472.88791.54222.36343.87692.17563.31362.16691.11222.61541.10303.2886
C81.43992.52702.81663.49471.54222.88792.36342.17563.87692.16693.31362.61541.11223.28861.1030
H93.40992.19962.49432.57671.10743.49523.87692.17564.35681.79233.84674.07392.50354.91882.5496
H103.40992.19962.49432.57673.49521.10742.17563.87694.35683.84671.79232.50354.07392.54964.9188
H112.73522.18483.09352.50471.10562.81603.31362.16691.79233.84672.65903.98293.09184.12502.4933
H122.73522.18483.09352.50472.81601.10562.16693.31363.84671.79232.65903.09183.98292.49334.1250
H132.09132.80222.63633.83033.28162.18821.11222.61544.07392.50353.98293.09182.37081.80083.5877
H142.09132.80222.63633.83032.18823.28162.61541.11222.50354.07393.09183.98292.37083.58771.8008
H152.03503.49943.83764.35673.88362.19951.10303.28864.91882.54964.12502.49331.80083.58774.0612
H162.03503.49943.83764.35672.19953.88363.28861.10302.54964.91882.49334.12503.58771.80084.0612

picture of 2H-Pyran, tetrahydro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C7 C6 111.585 O1 C7 H13 109.384
O1 C7 H15 105.544 O1 C8 C5 111.585
O1 C8 H14 109.384 O1 C8 H16 105.544
C2 C5 C8 109.832 C2 C5 H9 110.906
C2 C5 H11 109.853 C2 C6 C7 109.832
C2 C6 H10 110.906 C2 C6 H12 109.853
H3 C2 H4 107.528 H3 C2 C5 109.318
H3 C2 C6 109.318 H4 C2 C5 110.650
H4 C2 C6 110.650 C5 C2 C6 109.340
C5 C8 H14 109.998 C5 C8 H16 111.432
C6 C7 H13 109.998 C6 C7 H15 111.432
C7 O1 C8 110.306 C7 C6 H10 109.296
C7 C6 H12 108.732 C8 C5 H9 109.296
C8 C5 H11 108.732 H9 C5 H11 108.174
H10 C6 H12 108.174 H13 C7 H15 108.768
H14 C8 H16 108.768
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability