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

using model chemistry: B2PLYP/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 B2PLYP/3-21G*
 hartrees
Energy at 0K-269.891796
Energy at 298.15K 
HF Energy-269.695502
Nuclear repulsion energy237.949368
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 B2PLYP/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 3162 3162 24.65      
2 A1 3094 3094 2.41      
3 A1 3072 3072 16.98      
4 A1 1702 1702 37.25      
5 A1 1583 1583 6.55      
6 A1 1537 1537 25.50      
7 A1 1489 1489 9.32      
8 A1 1389 1389 10.53      
9 A1 1140 1140 4.32      
10 A1 1022 1022 1.59      
11 A1 777 777 1.61      
12 A1 423 423 0.33      
13 A1 202 202 0.32      
14 A2 3167 3167 0.00      
15 A2 3093 3093 0.00      
16 A2 1584 1584 0.00      
17 A2 1321 1321 0.00      
18 A2 1067 1067 0.00      
19 A2 752 752 0.00      
20 A2 198 198 0.00      
21 A2 46 46 0.00      
22 B1 3167 3167 39.55      
23 B1 3103 3103 12.21      
24 B1 1585 1585 14.69      
25 B1 1362 1362 0.93      
26 B1 1187 1187 0.51      
27 B1 858 858 13.74      
28 B1 489 489 0.59      
29 B1 164 164 0.15      
30 B1 65 65 0.13      
31 B2 3161 3161 13.92      
32 B2 3094 3094 32.20      
33 B2 3063 3063 8.79      
34 B2 1583 1583 9.57      
35 B2 1531 1531 2.17      
36 B2 1490 1490 11.95      
37 B2 1395 1395 22.71      
38 B2 1153 1153 77.76      
39 B2 1056 1056 5.36      
40 B2 957 957 17.73      
41 B2 634 634 1.65      
42 B2 327 327 17.14      

Unscaled Zero Point Vibrational Energy (zpe) 31620.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 31620.6 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 B2PLYP/3-21G*
ABC
0.28939 0.06549 0.05561

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.292
C2 0.000 0.000 0.050
C3 0.000 1.297 -0.759
C4 0.000 -1.297 -0.759
C5 0.000 2.535 0.152
C6 0.000 -2.535 0.152
H7 0.880 1.292 -1.415
H8 -0.880 1.292 -1.415
H9 -0.880 -1.292 -1.415
H10 0.880 -1.292 -1.415
H11 0.000 3.453 -0.441
H12 -0.881 2.529 0.797
H13 0.881 2.529 0.797
H14 0.000 -3.453 -0.441
H15 0.881 -2.529 0.797
H16 -0.881 -2.529 0.797

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O11.24162.42632.42632.77942.77943.12583.12583.12583.12583.86292.72322.72323.86292.72322.7232
C21.24161.52841.52842.53732.53732.14252.14252.14252.14253.48742.78032.78033.48742.78032.7803
C32.42631.52842.59331.53793.93891.09731.09732.81192.81192.17942.17202.17204.76004.22314.2231
C42.42631.52842.59333.93891.53792.81192.81191.09731.09734.76004.22314.22312.17942.17202.1720
C52.77942.53731.53793.93895.07052.18542.18544.22864.22861.09251.09191.09196.01725.18065.1806
C62.77942.53733.93891.53795.07054.22864.22862.18542.18546.01725.18065.18061.09251.09191.0919
H73.12582.14251.09732.81192.18544.22861.75923.12642.58452.52793.08622.53474.92324.41554.7536
H83.12582.14251.09732.81192.18544.22861.75922.58453.12642.52792.53473.08624.92324.75364.4155
H93.12582.14252.81191.09734.22862.18543.12642.58451.75924.92324.41554.75362.52793.08622.5347
H103.12582.14252.81191.09734.22862.18542.58453.12641.75924.92324.75364.41552.52792.53473.0862
H113.86293.48742.17944.76001.09256.01722.52792.52794.92324.92321.77841.77846.90536.17166.1716
H122.72322.78032.17204.22311.09195.18063.08622.53474.41554.75361.77841.76216.17165.35605.0579
H132.72322.78032.17204.22311.09195.18062.53473.08624.75364.41551.77841.76216.17165.05795.3560
H143.86293.48744.76002.17946.01721.09254.92324.92322.52792.52796.90536.17166.17161.77841.7784
H152.72322.78034.22312.17205.18061.09194.41554.75363.08622.53476.17165.35605.05791.77841.7621
H162.72322.78034.22312.17205.18061.09194.75364.41552.53473.08626.17165.05795.35601.77841.7621

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 121.966 O1 C2 C4 121.966
C2 C3 C5 111.679 C2 C3 H7 108.247
C2 C3 H8 108.247 C2 C4 C6 111.679
C2 C4 H9 108.247 C2 C4 H10 108.247
C3 C2 C4 116.067 C3 C5 H11 110.755
C3 C5 H12 110.210 C3 C5 H13 110.210
C4 C6 H14 110.755 C4 C6 H15 110.210
C4 C6 H16 110.210 C5 C3 H7 110.953
C5 C3 H8 110.953 C6 C4 H9 110.953
C6 C4 H10 110.953 H7 C3 H8 106.569
H9 C4 H10 106.569 H11 C5 H12 109.002
H11 C5 H13 109.002 H12 C5 H13 107.589
H14 C6 H15 109.002 H14 C6 H16 109.002
H15 C6 H16 107.589
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.439      
2 C 0.457      
3 C -0.486      
4 C -0.486      
5 C -0.535      
6 C -0.535      
7 H 0.212      
8 H 0.212      
9 H 0.212      
10 H 0.212      
11 H 0.182      
12 H 0.203      
13 H 0.203      
14 H 0.182      
15 H 0.203      
16 H 0.203      


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 -2.403 2.403
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.355 0.000 0.000
y 0.000 -37.442 0.000
z 0.000 0.000 -41.179
Traceless
 xyz
x 1.955 0.000 0.000
y 0.000 1.825 0.000
z 0.000 0.000 -3.781
Polar
3z2-r2-7.561
x2-y20.087
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.154 0.000 0.000
y 0.000 8.549 0.000
z 0.000 0.000 7.663


<r2> (average value of r2) Å2
<r2> 215.254
(<r2>)1/2 14.672