return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: HSEh1PBE/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HSEh1PBE/3-21G*
 hartrees
Energy at 0K-269.998814
Energy at 298.15K 
HF Energy-269.998814
Nuclear repulsion energy239.119073
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 HSEh1PBE/3-21G*
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 3164 3037 18.90      
2 A1 3086 2963 2.78      
3 A1 3064 2941 14.11      
4 A1 1770 1699 57.89      
5 A1 1559 1497 9.00      
6 A1 1508 1448 31.67      
7 A1 1469 1410 14.54      
8 A1 1378 1323 10.71      
9 A1 1139 1093 4.45      
10 A1 1042 1001 2.79      
11 A1 793 761 2.14      
12 A1 429 412 0.30      
13 A1 202 194 0.43      
14 A2 3165 3038 0.00      
15 A2 3088 2964 0.00      
16 A2 1559 1497 0.00      
17 A2 1304 1251 0.00      
18 A2 1051 1009 0.00      
19 A2 735 705 0.00      
20 A2 194 186 0.00      
21 A2 32 30 0.00      
22 B1 3166 3039 30.48      
23 B1 3099 2975 8.30      
24 B1 1559 1497 20.68      
25 B1 1352 1298 0.57      
26 B1 1172 1125 0.81      
27 B1 853 819 18.92      
28 B1 489 470 1.44      
29 B1 157 150 0.15      
30 B1 66 64 0.16      
31 B2 3163 3037 12.46      
32 B2 3086 2962 29.15      
33 B2 3055 2933 12.09      
34 B2 1559 1496 13.74      
35 B2 1497 1437 3.70      
36 B2 1470 1411 22.04      
37 B2 1388 1332 37.72      
38 B2 1160 1114 74.38      
39 B2 1053 1011 1.13      
40 B2 981 942 21.29      
41 B2 640 615 1.45      
42 B2 326 313 18.22      

Unscaled Zero Point Vibrational Energy (zpe) 31511.5 cm-1
Scaled (by 0.9599) Zero Point Vibrational Energy (zpe) 30247.9 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 HSEh1PBE/3-21G*
ABC
0.29192 0.06631 0.05629

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.285
C2 0.000 0.000 0.053
C3 0.000 1.287 -0.754
C4 0.000 -1.287 -0.754
C5 0.000 2.519 0.150
C6 0.000 -2.519 0.150
H7 0.880 1.279 -1.413
H8 -0.880 1.279 -1.413
H9 -0.880 -1.279 -1.413
H10 0.880 -1.279 -1.413
H11 0.000 3.440 -0.442
H12 -0.882 2.513 0.798
H13 0.882 2.513 0.798
H14 0.000 -3.440 -0.442
H15 0.882 -2.513 0.798
H16 -0.882 -2.513 0.798

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O11.23212.41072.41072.76332.76333.11303.11303.11303.11303.84892.70752.70753.84892.70752.7075
C21.23211.51881.51882.52122.52122.13542.13542.13542.13543.47512.76552.76553.47512.76552.7655
C32.41071.51882.57401.52803.91201.09991.09992.79182.79182.17502.16502.16504.73694.19824.1982
C42.41071.51882.57403.91201.52802.79182.79181.09991.09994.73694.19824.19822.17502.16502.1650
C52.76332.52121.52803.91205.03872.18092.18094.20064.20061.09431.09411.09415.98835.15005.1500
C62.76332.52123.91201.52805.03874.20064.20062.18092.18095.98835.15005.15001.09431.09411.0941
H73.11302.13541.09992.79182.18094.20061.76013.10512.55802.52703.08472.53224.89734.38974.7300
H83.11302.13541.09992.79182.18094.20061.76012.55803.10512.52702.53223.08474.89734.73004.3897
H93.11302.13542.79181.09994.20062.18093.10512.55801.76014.89734.38974.73002.52703.08472.5322
H103.11302.13542.79181.09994.20062.18092.55803.10511.76014.89734.73004.38972.52702.53223.0847
H113.84893.47512.17504.73691.09435.98832.52702.52704.89734.89731.78131.78136.87936.14416.1441
H122.70752.76552.16504.19821.09415.15003.08472.53224.38974.73001.78131.76316.14415.32665.0263
H132.70752.76552.16504.19821.09415.15002.53223.08474.73004.38971.78131.76316.14415.02635.3266
H143.84893.47514.73692.17505.98831.09434.89734.89732.52702.52706.87936.14416.14411.78131.7813
H152.70752.76554.19822.16505.15001.09414.38974.73003.08472.53226.14415.32665.02631.78131.7631
H162.70752.76554.19822.16505.15001.09414.73004.38972.53223.08476.14415.02635.32661.78131.7631

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 122.071 O1 C2 C4 122.071
C2 C3 C5 111.687 C2 C3 H7 108.202
C2 C3 H8 108.202 C2 C4 C6 111.687
C2 C4 H9 108.202 C2 C4 H10 108.202
C3 C2 C4 115.858 C3 C5 H11 111.006
C3 C5 H12 110.218 C3 C5 H13 110.218
C4 C6 H14 111.006 C4 C6 H15 110.218
C4 C6 H16 110.218 C5 C3 H7 111.129
C5 C3 H8 111.129 C6 C4 H9 111.129
C6 C4 H10 111.129 H7 C3 H8 106.276
H9 C4 H10 106.276 H11 C5 H12 108.975
H11 C5 H13 108.975 H12 C5 H13 107.362
H14 C6 H15 108.975 H14 C6 H16 108.975
H15 C6 H16 107.362
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.451      
2 C 0.464      
3 C -0.542      
4 C -0.542      
5 C -0.612      
6 C -0.612      
7 H 0.240      
8 H 0.240      
9 H 0.240      
10 H 0.240      
11 H 0.208      
12 H 0.230      
13 H 0.230      
14 H 0.208      
15 H 0.230      
16 H 0.230      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -2.511 2.511
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.918 0.000 0.000
y 0.000 -36.726 0.000
z 0.000 0.000 -40.629
Traceless
 xyz
x 1.759 0.000 0.000
y 0.000 2.047 0.000
z 0.000 0.000 -3.807
Polar
3z2-r2-7.613
x2-y2-0.192
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.174 0.000 0.000
y 0.000 8.631 0.000
z 0.000 0.000 7.702


<r2> (average value of r2) Å2
<r2> 212.742
(<r2>)1/2 14.586