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

using model chemistry: MP2/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/CEP-121G
 hartrees
Energy at 0K-49.419152
Energy at 298.15K 
HF Energy-48.844200
Nuclear repulsion energy131.079444
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-121G
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 3084 3010 47.27      
2 A1 2983 2911 0.01      
3 A1 2969 2898 48.25      
4 A1 1584 1546 25.72      
5 A1 1526 1489 11.40      
6 A1 1497 1462 19.76      
7 A1 1451 1416 10.21      
8 A1 1376 1343 6.88      
9 A1 1115 1088 1.87      
10 A1 1019 995 3.80      
11 A1 770 751 1.41      
12 A1 402 393 0.36      
13 A1 193 188 0.65      
14 A2 3096 3022 0.00      
15 A2 3014 2942 0.00      
16 A2 1519 1482 0.00      
17 A2 1264 1234 0.00      
18 A2 1014 989 0.00      
19 A2 745 727 0.00      
20 A2 202 197 0.00      
21 A2 50i 48i 0.00      
22 B1 3097 3023 76.59      
23 B1 3025 2952 33.06      
24 B1 1519 1482 13.66      
25 B1 1291 1260 2.93      
26 B1 1168 1140 0.81      
27 B1 821 801 7.13      
28 B1 447 436 0.01      
29 B1 196 192 0.22      
30 B1 59 57 0.29      
31 B2 3084 3010 24.76      
32 B2 2982 2910 56.50      
33 B2 2961 2890 16.27      
34 B2 1525 1488 9.14      
35 B2 1493 1457 0.25      
36 B2 1453 1418 5.31      
37 B2 1396 1362 21.11      
38 B2 1156 1129 54.36      
39 B2 1042 1017 1.08      
40 B2 955 932 17.07      
41 B2 611 596 4.85      
42 B2 307 299 11.03      

Unscaled Zero Point Vibrational Energy (zpe) 30678.4 cm-1
Scaled (by 0.976) Zero Point Vibrational Energy (zpe) 29942.2 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-121G
ABC
0.28154 0.06264 0.05330

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.334
C2 0.000 0.000 0.054
C3 0.000 1.324 -0.752
C4 0.000 -1.324 -0.752
C5 0.000 2.595 0.151
C6 0.000 -2.595 0.151
H7 0.886 1.315 -1.416
H8 -0.886 1.315 -1.416
H9 -0.886 -1.315 -1.416
H10 0.886 -1.315 -1.416
H11 0.000 3.503 -0.475
H12 -0.889 2.609 0.800
H13 0.889 2.609 0.800
H14 0.000 -3.503 -0.475
H15 0.889 -2.609 0.800
H16 -0.889 -2.609 0.800

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O11.28022.47032.47032.85162.85163.17433.17433.17433.17433.94222.80762.80763.94222.80762.8076
C21.28021.54971.54972.59642.59642.16212.16212.16212.16213.54242.85562.85563.54242.85562.8556
C32.47031.54972.64781.55864.02111.10751.10752.86202.86202.19632.20222.20224.83464.32044.3204
C42.47031.54972.64784.02111.55862.86202.86201.10751.10754.83464.32044.32042.19632.20222.2022
C52.85162.59641.55864.02115.18922.20852.20854.30424.30421.10291.10121.10126.12945.31875.3187
C62.85162.59644.02111.55865.18924.30424.30422.20852.20856.12945.31875.31871.10291.10121.1012
H73.17432.16211.10752.86202.20854.30421.77253.17172.63022.54103.12042.56594.98834.50644.8436
H83.17432.16211.10752.86202.20854.30421.77252.63023.17172.54102.56593.12044.98834.84364.5064
H93.17432.16212.86201.10754.30422.20853.17172.63021.77254.98834.50644.84362.54103.12042.5659
H103.17432.16212.86201.10754.30422.20852.63023.17171.77254.98834.84364.50642.54102.56593.1204
H113.94223.54242.19634.83461.10296.12942.54102.54104.98834.98831.79311.79317.00556.30626.3062
H122.80762.85562.20224.32041.10125.31873.12042.56594.50644.84361.79311.77906.30625.51275.2178
H132.80762.85562.20224.32041.10125.31872.56593.12044.84364.50641.79311.77906.30625.21785.5127
H143.94223.54244.83462.19636.12941.10294.98834.98832.54102.54107.00556.30626.30621.79311.7931
H152.80762.85564.32042.20225.31871.10124.50644.84363.12042.56596.30625.51275.21781.79311.7790
H162.80762.85564.32042.20225.31871.10124.84364.50642.56593.12046.30625.21785.51271.79311.7790

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 121.316 O1 C2 C4 121.316
C2 C3 C5 113.296 C2 C3 H7 107.753
C2 C3 H8 107.753 C2 C4 C6 113.296
C2 C4 H9 107.753 C2 C4 H10 107.753
C3 C2 C4 117.367 C3 C5 H11 110.041
C3 C5 H12 110.603 C3 C5 H13 110.603
C4 C6 H14 110.041 C4 C6 H15 110.603
C4 C6 H16 110.603 C5 C3 H7 110.717
C5 C3 H8 110.717 C6 C4 H9 110.717
C6 C4 H10 110.717 H7 C3 H8 106.296
H9 C4 H10 106.296 H11 C5 H12 108.889
H11 C5 H13 108.889 H12 C5 H13 107.756
H14 C6 H15 108.889 H14 C6 H16 108.889
H15 C6 H16 107.756
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability