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All results from a given calculation for C5H10O (3-Pentanone)

using model chemistry: QCISD/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at QCISD/6-311G*
 hartrees
Energy at 0K-271.027577
Energy at 298.15K 
HF Energy-270.086360
Nuclear repulsion energy238.486405
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 QCISD/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3127 2993 35.96      
2 A1 3053 2923 0.96      
3 A1 3037 2907 31.98      
4 A1 1808 1731 99.34      
5 A1 1529 1464 10.02      
6 A1 1505 1441 14.77      
7 A1 1454 1392 12.31      
8 A1 1386 1327 3.32      
9 A1 1138 1090 1.77      
10 A1 1040 996 2.87      
11 A1 799 765 1.09      
12 A1 413 395 0.49      
13 A1 199 191 0.49      
14 A2 3135 3002 0.00      
15 A2 3060 2930 0.00      
16 A2 1524 1459 0.00      
17 A2 1286 1231 0.00      
18 A2 1023 979 0.00      
19 A2 725 694 0.00      
20 A2 222 213 0.00      
21 A2 32i 30i 0.00      
22 B1 3136 3002 53.73      
23 B1 3071 2940 22.98      
24 B1 1524 1459 16.14      
25 B1 1329 1273 0.99      
26 B1 1164 1115 0.17      
27 B1 831 795 8.24      
28 B1 465 445 0.00      
29 B1 207 198 0.22      
30 B1 65 62 0.22      
31 B2 3126 2993 16.46      
32 B2 3053 2923 44.06      
33 B2 3028 2899 10.22      
34 B2 1530 1465 13.34      
35 B2 1493 1429 1.58      
36 B2 1454 1392 0.15      
37 B2 1426 1365 41.63      
38 B2 1165 1115 53.69      
39 B2 1036 992 7.23      
40 B2 988 946 15.89      
41 B2 634 607 5.50      
42 B2 317 304 12.40      

Unscaled Zero Point Vibrational Energy (zpe) 31234.9 cm-1
Scaled (by 0.9574) Zero Point Vibrational Energy (zpe) 29904.3 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 QCISD/6-311G*
ABC
0.29676 0.06489 0.05542

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.282
C2 0.000 0.000 0.068
C3 0.000 1.296 -0.737
C4 0.000 -1.296 -0.737
C5 0.000 2.549 0.136
C6 0.000 -2.549 0.136
H7 0.875 1.280 -1.404
H8 -0.875 1.280 -1.404
H9 -0.875 -1.280 -1.404
H10 0.875 -1.280 -1.404
H11 0.000 3.453 -0.484
H12 -0.882 2.573 0.784
H13 0.882 2.573 0.784
H14 0.000 -3.453 -0.484
H15 0.882 -2.573 0.784
H16 -0.882 -2.573 0.784

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O11.21432.39932.39932.79462.79463.10153.10153.10153.10153.87802.76482.76483.87802.76482.7648
C21.21431.52581.52582.54982.54982.13782.13782.13782.13783.49642.81252.81253.49642.81252.8125
C32.39931.52582.59281.52683.94321.10051.10052.80152.80152.17102.17272.17274.75584.24994.2499
C42.39931.52582.59283.94321.52682.80152.80151.10051.10054.75584.24994.24992.17102.17272.1727
C52.79462.54981.52683.94325.09782.17912.17914.21884.21881.09601.09461.09466.03345.23725.2372
C62.79462.54983.94321.52685.09784.21884.21882.17912.17916.03345.23725.23721.09601.09461.0946
H73.10152.13781.10052.80152.17914.21881.75003.10092.55992.51653.08972.54174.90004.43084.7664
H83.10152.13781.10052.80152.17914.21881.75002.55993.10092.51652.54173.08974.90004.76644.4308
H93.10152.13782.80151.10054.21882.17913.10092.55991.75004.90004.43084.76642.51653.08972.5417
H103.10152.13782.80151.10054.21882.17912.55993.10091.75004.90004.76644.43082.51652.54173.0897
H113.87803.49642.17104.75581.09606.03342.51652.51654.90004.90001.77761.77766.90526.22016.2201
H122.76482.81252.17274.24991.09465.23723.08972.54174.43084.76641.77761.76366.22015.43935.1454
H132.76482.81252.17274.24991.09465.23722.54173.08974.76644.43081.77761.76366.22015.14545.4393
H143.87803.49644.75582.17106.03341.09604.90004.90002.51652.51656.90526.22016.22011.77761.7776
H152.76482.81254.24992.17275.23721.09464.43084.76643.08972.54176.22015.43935.14541.77761.7636
H162.76482.81254.24992.17275.23721.09464.76644.43082.54173.08976.22015.14545.43931.77761.7636

picture of 3-Pentanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 121.826 O1 C2 C4 121.826
C2 C3 C5 113.291 C2 C3 H7 107.879
C2 C3 H8 107.879 C2 C4 C6 113.291
C2 C4 H9 107.879 C2 C4 H10 107.879
C3 C2 C4 116.348 C3 C5 H11 110.662
C3 C5 H12 110.883 C3 C5 H13 110.883
C4 C6 H14 110.662 C4 C6 H15 110.883
C4 C6 H16 110.883 C5 C3 H7 111.039
C5 C3 H8 111.039 C6 C4 H9 111.039
C6 C4 H10 111.039 H7 C3 H8 105.332
H9 C4 H10 105.332 H11 C5 H12 108.482
H11 C5 H13 108.482 H12 C5 H13 107.337
H14 C6 H15 108.482 H14 C6 H16 108.482
H15 C6 H16 107.337
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability