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

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-270.844195
Energy at 298.15K-270.857191
HF Energy-270.015973
Nuclear repulsion energy260.213588
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' 3169 2989 45.42      
2 A' 3160 2980 38.69      
3 A' 3146 2966 22.98      
4 A' 3100 2923 9.43      
5 A' 3088 2912 23.51      
6 A' 3038 2865 84.94      
7 A' 1571 1481 4.34      
8 A' 1554 1465 4.48      
9 A' 1545 1457 6.93      
10 A' 1461 1378 8.29      
11 A' 1425 1344 0.90      
12 A' 1357 1279 2.84      
13 A' 1322 1247 5.41      
14 A' 1218 1149 3.24      
15 A' 1081 1020 7.06      
16 A' 1053 993 9.08      
17 A' 915 863 18.13      
18 A' 891 841 6.28      
19 A' 854 806 3.50      
20 A' 577 544 4.01      
21 A' 441 416 1.24      
22 A' 420 396 5.80      
23 A' 261 246 4.18      
24 A" 3167 2987 31.59      
25 A" 3155 2975 27.85      
26 A" 3100 2923 31.53      
27 A" 3034 2861 18.11      
28 A" 1555 1467 0.27      
29 A" 1535 1447 2.42      
30 A" 1431 1350 8.78      
31 A" 1426 1345 1.90      
32 A" 1390 1311 1.03      
33 A" 1335 1259 6.82      
34 A" 1263 1191 34.16      
35 A" 1223 1153 1.19      
36 A" 1165 1098 62.88      
37 A" 1099 1036 18.29      
38 A" 1014 956 3.88      
39 A" 920 868 1.10      
40 A" 846 798 0.48      
41 A" 466 439 0.01      
42 A" 252 237 0.58      

Unscaled Zero Point Vibrational Energy (zpe) 33010.7 cm-1
Scaled (by 0.943) Zero Point Vibrational Energy (zpe) 31129.1 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
0.15626 0.15050 0.08713

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -0.681 -1.254 0.000
C2 0.639 1.311 0.000
H3 1.707 1.055 0.000
H4 0.573 2.405 0.000
C5 -0.020 0.729 1.249
C6 -0.020 0.729 -1.249
C7 -0.020 -0.792 -1.173
C8 -0.020 -0.792 1.173
H9 0.501 1.055 2.158
H10 0.501 1.055 -2.158
H11 -1.057 1.076 1.319
H12 -1.057 1.076 -1.319
H13 1.017 -1.169 -1.194
H14 1.017 -1.169 1.194
H15 -0.562 -1.235 -2.012
H16 -0.562 -1.235 2.012

Atom - Atom Distances (Å)
  O1 C2 H3 H4 C5 C6 C7 C8 H9 H10 H11 H12 H13 H14 H15 H16
O12.88503.32173.86752.43532.43531.42351.42353.37443.37442.70362.70362.07772.07772.01592.0159
C22.88501.09841.09551.52781.52782.49652.49652.17712.17712.16152.16152.77902.77903.46063.4606
H33.32171.09841.76352.15632.15632.78722.78722.47182.47183.06303.06302.61722.61723.80043.8004
H43.86751.09551.76352.17252.17253.45603.45602.54582.54582.48202.48203.79453.79454.31094.3109
C52.43531.52782.15632.17252.49882.86011.52261.09683.46211.09622.79133.26362.16373.84582.1755
C62.43531.52782.15632.17252.49881.52262.86013.46211.09682.79131.09622.16373.26362.17553.8458
C71.42352.49652.78723.45602.86011.52262.34583.84392.15713.28202.14151.10372.61191.09333.2614
C81.42352.49652.78723.45601.52262.86012.34582.15713.84392.14153.28202.61191.10373.26141.0933
H93.37442.17712.47182.54581.09683.46213.84392.15714.31531.77033.80964.05612.47854.87492.5293
H103.37442.17712.47182.54583.46211.09682.15713.84394.31533.80961.77032.47854.05612.52934.8749
H112.70362.16153.06302.48201.09622.79133.28202.14151.77033.80962.63703.95723.05944.08402.4630
H122.70362.16153.06302.48202.79131.09622.14153.28203.80961.77032.63703.05943.95722.46304.0840
H132.07772.77902.61723.79453.26362.16371.10372.61194.05612.47853.95723.05942.38891.77983.5753
H142.07772.77902.61723.79452.16373.26362.61191.10372.47854.05613.05943.95722.38893.57531.7798
H152.01593.46063.80044.31093.84582.17551.09333.26144.87492.52934.08402.46301.77983.57534.0247
H162.01593.46063.80044.31092.17553.84583.26141.09332.52934.87492.46304.08403.57531.77984.0247

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 111.458 O1 C7 H13 109.949
O1 C7 H15 105.703 O1 C8 C5 111.458
O1 C8 H14 109.949 O1 C8 H16 105.703
C2 C5 C8 109.852 C2 C5 H9 111.029
C2 C5 H11 109.824 C2 C6 C7 109.852
C2 C6 H10 111.029 C2 C6 H12 109.824
H3 C2 H4 106.992 H3 C2 C5 109.292
H3 C2 C6 109.292 H4 C2 C5 110.743
H4 C2 C6 110.743 C5 C2 C6 109.721
C5 C8 H14 109.914 C5 C8 H16 111.482
C6 C7 H13 109.914 C6 C7 H15 111.482
C7 O1 C8 110.968 C7 C6 H10 109.807
C7 C6 H12 108.618 C8 C5 H9 109.807
C8 C5 H11 108.618 H9 C5 H11 107.652
H10 C6 H12 107.652 H13 C7 H15 108.212
H14 C8 H16 108.212
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability