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All results from a given calculation for C5H8O (2H-Pyran, 3,4-dihydro-)

using model chemistry: MP3=FULL/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 MP3=FULL/6-31G*
 hartrees
Energy at 0K-269.713853
Energy at 298.15K-269.723867
HF Energy-268.831355
Nuclear repulsion energy241.371711
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 MP3=FULL/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 3270 3068 24.07      
2 A 3247 3046 1.81      
3 A 3179 2983 33.57      
4 A 3161 2966 32.73      
5 A 3128 2935 28.43      
6 A 3110 2918 14.10      
7 A 3084 2894 37.28      
8 A 3079 2889 33.15      
9 A 1782 1672 57.85      
10 A 1570 1473 1.80      
11 A 1556 1460 2.40      
12 A 1543 1448 2.99      
13 A 1480 1389 3.42      
14 A 1448 1358 7.51      
15 A 1426 1338 1.11      
16 A 1397 1310 2.37      
17 A 1339 1256 1.81      
18 A 1328 1246 93.29      
19 A 1297 1217 8.96      
20 A 1250 1173 2.56      
21 A 1152 1081 49.26      
22 A 1146 1075 21.46      
23 A 1106 1038 11.26      
24 A 1070 1004 2.90      
25 A 978 918 15.78      
26 A 949 891 0.66      
27 A 941 883 20.02      
28 A 923 866 0.83      
29 A 881 826 4.32      
30 A 788 739 10.26      
31 A 759 712 15.68      
32 A 519 487 5.13      
33 A 505 474 2.42      
34 A 451 423 15.82      
35 A 294 276 0.66      
36 A 184 172 4.39      

Unscaled Zero Point Vibrational Energy (zpe) 27659.4 cm-1
Scaled (by 0.9383) Zero Point Vibrational Energy (zpe) 25952.8 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 MP3=FULL/6-31G*
ABC
0.17393 0.15871 0.09065

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.651 1.850 -0.182
C2 0.887 1.085 -0.079
H3 -0.728 2.395 0.102
C4 -0.416 1.357 0.061
H5 -2.304 0.519 -0.524
H6 -1.861 0.176 1.141
C7 -1.456 0.267 0.124
H8 -0.727 -1.076 -1.412
H9 -1.456 -1.910 -0.034
C10 -0.830 -1.058 -0.322
H11 1.037 -2.136 -0.004
H12 0.477 -1.189 1.395
C13 0.555 -1.203 0.298
O14 1.435 -0.164 -0.121

Atom - Atom Distances (Å)
  H1 C2 H3 C4 H5 H6 C7 H8 H9 C10 H11 H12 C13 O14
H11.08622.45702.13824.18644.10893.49993.96534.87963.82504.03703.61943.27932.0265
C21.08622.08791.33793.27083.14062.48963.00793.80242.75653.22512.74042.34241.3642
H32.45702.08791.08562.52872.69982.24913.78694.36843.48094.86433.99653.82553.3583
C42.13821.33791.08562.14682.15591.50752.86063.42942.47973.78333.00922.74782.4019
H54.18643.27082.52872.14681.75661.09632.41252.61912.16824.29923.78603.43723.8218
H64.10893.14062.69982.15591.75661.09833.06112.42742.17343.87972.71892.90643.5450
C73.49992.48962.24911.50751.09631.09832.16692.18301.53223.46542.73382.49732.9330
H83.96533.00793.78692.86062.41253.06112.16691.76901.09562.49393.05652.14082.6778
H94.87963.80244.36843.42942.61912.42742.18301.76901.09562.50352.50932.15703.3782
C103.82502.75653.48092.47972.16822.17341.53221.09561.09562.17932.16161.52412.4432
H114.03703.22514.86433.78334.29923.87973.46542.49392.50352.17931.77951.09262.0152
H123.61942.74043.99653.00923.78602.71892.73383.05652.50932.16161.77951.09982.0651
C133.27932.34243.82552.74783.43722.90642.49732.14082.15701.52411.09261.09981.4246
O142.02651.36423.35832.40193.82183.54502.93302.67783.37822.44322.01522.06511.4246

picture of 2H-Pyran, 3,4-dihydro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C2 C4 123.453 H1 C2 O14 111.083
C2 C4 H3 118.600 C2 C4 C7 121.965
C2 O14 C13 114.248 H3 C4 C7 119.412
C4 C2 O14 125.463 C4 C7 H5 110.073
C4 C7 H6 110.680 C4 C7 C10 109.329
H5 C7 H6 106.337 H5 C7 C10 110.047
H6 C7 C10 110.342 C7 C10 H8 109.989
C7 C10 H9 111.258 C7 C10 C13 109.595
H8 C10 H9 107.667 H8 C10 C13 108.508
H9 C10 C13 109.765 C10 C13 H11 111.726
C10 C13 H12 109.882 C10 C13 O14 111.858
H11 C13 H12 108.517 H11 C13 O14 105.611
H12 C13 O14 109.101
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability