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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-270.924919
Energy at 298.15K-270.937918
HF Energy-270.031761
Nuclear repulsion energy260.573733
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' 3195 2992 59.62      
2 A' 3188 2986 27.87      
3 A' 3175 2973 23.88      
4 A' 3124 2926 10.68      
5 A' 3112 2915 25.29      
6 A' 3060 2866 88.63      
7 A' 1564 1465 3.46      
8 A' 1546 1448 3.27      
9 A' 1537 1439 5.53      
10 A' 1461 1368 10.13      
11 A' 1424 1333 0.35      
12 A' 1355 1269 3.09      
13 A' 1320 1237 5.54      
14 A' 1215 1137 3.38      
15 A' 1079 1011 6.51      
16 A' 1051 984 9.74      
17 A' 915 857 17.34      
18 A' 887 831 5.27      
19 A' 854 800 3.35      
20 A' 572 535 4.00      
21 A' 439 411 1.27      
22 A' 417 391 5.33      
23 A' 259 242 4.03      
24 A" 3192 2989 26.19      
25 A" 3183 2981 37.28      
26 A" 3124 2926 32.28      
27 A" 3056 2862 20.63      
28 A" 1549 1450 0.03      
29 A" 1527 1430 1.54      
30 A" 1431 1340 12.25      
31 A" 1426 1335 1.27      
32 A" 1388 1300 0.71      
33 A" 1335 1250 6.17      
34 A" 1260 1180 33.48      
35 A" 1219 1141 1.34      
36 A" 1165 1091 63.29      
37 A" 1096 1026 16.77      
38 A" 1010 946 3.28      
39 A" 919 861 1.34      
40 A" 842 788 0.54      
41 A" 463 434 0.01      
42 A" 250 234 0.50      

Unscaled Zero Point Vibrational Energy (zpe) 33090.7 cm-1
Scaled (by 0.9365) Zero Point Vibrational Energy (zpe) 30989.5 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
0.15666 0.15082 0.08730

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 0.000 1.427 0.000
C2 0.071 -1.457 0.000
H3 -0.985 -1.744 0.000
H4 0.651 -2.382 0.000
C5 0.365 -0.630 1.251
C6 0.365 -0.630 -1.251
C7 -0.363 0.704 -1.173
C8 -0.363 0.704 1.173
H9 0.065 -1.165 2.155
H10 0.065 -1.165 -2.155
H11 1.437 -0.436 1.321
H12 1.437 -0.436 -1.321
H13 -1.450 0.537 -1.186
H14 -1.450 0.537 1.186
H15 -0.109 1.350 -2.013
H16 -0.109 1.350 2.013

Atom - Atom Distances (Å)
  O1 C2 H3 H4 C5 C6 C7 C8 H9 H10 H11 H12 H13 H14 H15 H16
O12.88563.32073.86432.43552.43551.42561.42563.37193.37192.69842.69842.07402.07402.01732.0173
C22.88561.09461.09131.52781.52782.49732.49732.17492.17492.15772.15772.77422.77423.45893.4589
H33.32071.09461.75632.15102.15102.78482.78482.46652.46653.05383.05382.61212.61213.79353.7935
H43.86431.09131.75632.17102.17103.45363.45362.54332.54332.48012.48013.78663.78664.30734.3073
C52.43551.52782.15102.17102.50142.86131.52211.09253.46061.09232.79323.25452.15883.84662.1740
C62.43551.52782.15102.17102.50141.52212.86133.46061.09252.79321.09232.15883.25452.17403.8466
C71.42562.49732.78483.45362.86131.52212.34683.84142.15433.28072.13601.09962.60261.08943.2611
C81.42562.49732.78483.45361.52212.86132.34682.15433.84142.13603.28072.60261.09963.26111.0894
H93.37192.17492.46652.54331.09253.46063.84142.15434.31041.76353.80774.04402.47664.87112.5248
H103.37192.17492.46652.54333.46061.09252.15433.84144.31043.80771.76352.47664.04402.52484.8711
H112.69842.15773.05382.48011.09232.79323.28072.13601.76353.80772.64223.94533.04974.08572.4608
H122.69842.15773.05382.48012.79321.09232.13603.28073.80771.76352.64223.04973.94532.46084.0857
H132.07402.77422.61213.78663.25452.15881.09962.60264.04402.47663.94533.04972.37111.77353.5624
H142.07402.77422.61213.78662.15883.25452.60261.09962.47664.04403.04973.94532.37113.56241.7735
H152.01733.45893.79354.30733.84662.17401.08943.26114.87112.52484.08572.46081.77353.56244.0259
H162.01733.45893.79354.30732.17403.84663.26111.08942.52484.87112.46084.08573.56241.77354.0259

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 111.392 O1 C7 H13 109.764
O1 C7 H15 105.894 O1 C8 C5 111.392
O1 C8 H14 109.764 O1 C8 H16 105.894
C2 C5 C8 109.934 C2 C5 H9 111.111
C2 C5 H11 109.757 C2 C6 C7 109.934
C2 C6 H10 111.111 C2 C6 H12 109.757
H3 C2 H4 106.929 H3 C2 C5 109.098
H3 C2 C6 109.098 H4 C2 C5 110.875
H4 C2 C6 110.875 C5 C2 C6 109.891
C5 C8 H14 109.818 C5 C8 H16 111.634
C6 C7 H13 109.818 C6 C7 H15 111.634
C7 O1 C8 110.793 C7 C6 H10 109.873
C7 C6 H12 108.461 C8 C5 H9 109.873
C8 C5 H11 108.461 H9 C5 H11 107.639
H10 C6 H12 107.639 H13 C7 H15 108.222
H14 C8 H16 108.222
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability