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

using model chemistry: HF/CEP-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HF/CEP-31G
 hartrees
Energy at 0K-48.838314
Energy at 298.15K 
HF Energy-48.838314
Nuclear repulsion energy132.992030
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 HF/CEP-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 A1 3302 2977 98.93      
2 A1 3228 2910 23.03      
3 A1 3215 2898 46.63      
4 A1 1858 1675 140.68      
5 A1 1636 1474 15.57      
6 A1 1617 1457 20.95      
7 A1 1566 1412 8.85      
8 A1 1501 1353 1.73      
9 A1 1216 1096 5.87      
10 A1 1104 995 7.68      
11 A1 847 764 0.06      
12 A1 430 387 0.40      
13 A1 205 185 0.92      
14 A2 3320 2993 0.00      
15 A2 3252 2931 0.00      
16 A2 1628 1468 0.00      
17 A2 1380 1244 0.00      
18 A2 1119 1009 0.00      
19 A2 796 717 0.00      
20 A2 224 202 0.00      
21 A2 14i 13i 0.00      
22 B1 3321 2994 158.85      
23 B1 3264 2943 48.61      
24 B1 1628 1468 15.29      
25 B1 1422 1281 2.62      
26 B1 1261 1137 0.13      
27 B1 897 809 15.73      
28 B1 506 456 0.69      
29 B1 210 189 0.57      
30 B1 60 54 0.70      
31 B2 3302 2976 33.55      
32 B2 3224 2906 70.41      
33 B2 3207 2891 51.15      
34 B2 1636 1475 8.45      
35 B2 1607 1449 0.76      
36 B2 1566 1412 0.79      
37 B2 1534 1383 29.91      
38 B2 1255 1131 53.78      
39 B2 1143 1030 0.07      
40 B2 1029 927 12.33      
41 B2 669 603 14.15      
42 B2 329 296 15.05      

Unscaled Zero Point Vibrational Energy (zpe) 33250.0 cm-1
Scaled (by 0.9014) Zero Point Vibrational Energy (zpe) 29971.5 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 HF/CEP-31G
ABC
0.29418 0.06388 0.05458

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.303
C2 0.000 0.000 0.070
C3 0.000 1.304 -0.732
C4 0.000 -1.304 -0.732
C5 0.000 2.572 0.143
C6 0.000 -2.572 0.143
H7 0.871 1.292 -1.390
H8 -0.871 1.292 -1.390
H9 -0.871 -1.292 -1.390
H10 0.871 -1.292 -1.390
H11 0.000 3.462 -0.486
H12 -0.877 2.601 0.786
H13 0.877 2.601 0.786
H14 0.000 -3.462 -0.486
H15 0.877 -2.601 0.786
H16 -0.877 -2.601 0.786

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O11.23352.41732.41732.82142.82143.11113.11113.11113.11113.89702.79352.79353.89702.79352.7935
C21.23351.53071.53072.57302.57302.13492.13492.13492.13493.50642.83732.83733.50642.83732.8373
C32.41731.53072.60741.54123.97341.09141.09142.81582.81582.17252.18172.18174.77234.28094.2809
C42.41731.53072.60743.97341.54122.81582.81581.09141.09144.77234.28094.28092.17252.18172.1817
C52.82142.57301.54123.97345.14402.17882.17884.24724.24721.08991.08791.08796.06695.28655.2865
C62.82142.57303.97341.54125.14404.24724.24722.17882.17886.06695.28655.28651.08991.08791.0879
H73.11112.13491.09142.81582.17884.24721.74273.11672.58392.50723.08322.53954.91714.46014.7906
H83.11112.13491.09142.81582.17884.24721.74272.58393.11672.50722.53953.08324.91714.79064.4601
H93.11112.13492.81581.09144.24722.17883.11672.58391.74274.91714.46014.79062.50723.08322.5395
H103.11112.13492.81581.09144.24722.17882.58393.11671.74274.91714.79064.46012.50722.53953.0832
H113.89703.50642.17254.77231.08996.06692.50722.50724.91714.91711.76861.76866.92446.25736.2573
H122.79352.83732.18174.28091.08795.28653.08322.53954.46014.79061.76861.75406.25735.49055.2028
H132.79352.83732.18174.28091.08795.28652.53953.08324.79064.46011.76861.75406.25735.20285.4905
H143.89703.50644.77232.17256.06691.08994.91714.91712.50722.50726.92446.25736.25731.76861.7686
H152.79352.83734.28092.18175.28651.08794.46014.79063.08322.53956.25735.49055.20281.76861.7540
H162.79352.83734.28092.18175.28651.08794.79064.46012.53953.08326.25735.20285.49051.76861.7540

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 121.602 O1 C2 C4 121.602
C2 C3 C5 113.774 C2 C3 H7 107.838
C2 C3 H8 107.838 C2 C4 C6 113.774
C2 C4 H9 107.838 C2 C4 H10 107.838
C3 C2 C4 116.797 C3 C5 H11 110.136
C3 C5 H12 110.984 C3 C5 H13 110.984
C4 C6 H14 110.136 C4 C6 H15 110.984
C4 C6 H16 110.984 C5 C3 H7 110.545
C5 C3 H8 110.545 C6 C4 H9 110.545
C6 C4 H10 110.545 H7 C3 H8 105.948
H9 C4 H10 105.948 H11 C5 H12 108.602
H11 C5 H13 108.602 H12 C5 H13 107.441
H14 C6 H15 108.602 H14 C6 H16 108.602
H15 C6 H16 107.441
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.219      
2 C -0.151      
3 C -0.060      
4 C -0.060      
5 C -0.293      
6 C -0.293      
7 H 0.092      
8 H 0.092      
9 H 0.092      
10 H 0.092      
11 H 0.122      
12 H 0.116      
13 H 0.116      
14 H 0.122      
15 H 0.116      
16 H 0.116      


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 -3.563 3.563
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.082 0.000 0.000
y 0.000 -36.791 0.000
z 0.000 0.000 -43.138
Traceless
 xyz
x 2.882 0.000 0.000
y 0.000 3.319 0.000
z 0.000 0.000 -6.201
Polar
3z2-r2-12.402
x2-y2-0.292
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.160 0.000 0.000
y 0.000 8.467 0.000
z 0.000 0.000 7.997


<r2> (average value of r2) Å2
<r2> 180.044
(<r2>)1/2 13.418