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

using model chemistry: B1B95/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B1B95/3-21G
 hartrees
Energy at 0K-270.151820
Energy at 298.15K 
HF Energy-270.151820
Nuclear repulsion energy239.651808
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 B1B95/3-21G
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 3173 3036 19.17      
2 A1 3096 2962 3.07      
3 A1 3074 2941 14.64      
4 A1 1772 1695 58.23      
5 A1 1561 1493 7.80      
6 A1 1509 1444 29.92      
7 A1 1471 1407 14.99      
8 A1 1373 1313 10.00      
9 A1 1137 1088 4.20      
10 A1 1035 990 2.74      
11 A1 792 758 1.96      
12 A1 428 410 0.28      
13 A1 209 200 0.38      
14 A2 3174 3036 0.00      
15 A2 3100 2966 0.00      
16 A2 1562 1495 0.00      
17 A2 1299 1243 0.00      
18 A2 1048 1003 0.00      
19 A2 734 702 0.00      
20 A2 204 196 0.00      
21 A2 46 44 0.00      
22 B1 3174 3037 32.53      
23 B1 3109 2975 8.96      
24 B1 1563 1495 20.03      
25 B1 1345 1287 0.68      
26 B1 1170 1120 0.81      
27 B1 849 812 17.89      
28 B1 486 465 1.23      
29 B1 172 164 0.19      
30 B1 70 67 0.14      
31 B2 3173 3036 14.08      
32 B2 3096 2962 29.15      
33 B2 3067 2934 10.99      
34 B2 1561 1493 13.46      
35 B2 1499 1434 3.70      
36 B2 1471 1407 18.45      
37 B2 1385 1325 38.10      
38 B2 1158 1108 75.71      
39 B2 1052 1006 1.48      
40 B2 979 936 19.18      
41 B2 640 612 1.77      
42 B2 343 328 18.08      

Unscaled Zero Point Vibrational Energy (zpe) 31578.2 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 30210.9 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 B1B95/3-21G
ABC
0.29320 0.06671 0.05662

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 1.273
C2 0.000 0.000 0.043
C3 0.000 1.289 -0.758
C4 0.000 -1.289 -0.758
C5 0.000 2.509 0.160
C6 0.000 -2.509 0.160
H7 0.879 1.286 -1.415
H8 -0.879 1.286 -1.415
H9 -0.879 -1.286 -1.415
H10 0.879 -1.286 -1.415
H11 0.000 3.435 -0.417
H12 -0.879 2.492 0.807
H13 0.879 2.492 0.807
H14 0.000 -3.435 -0.417
H15 0.879 -2.492 0.807
H16 -0.879 -2.492 0.807

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
O11.23032.40532.40532.74492.74493.10643.10643.10643.10643.82872.68352.68353.82872.68352.6835
C21.23031.51721.51722.51212.51212.13312.13312.13312.13313.46612.75102.75103.46612.75102.7510
C32.40531.51722.57761.52753.90771.09691.09692.79892.79892.17352.16102.16104.73654.18544.1854
C42.40531.51722.57763.90771.52752.79892.79891.09691.09694.73654.18544.18542.17352.16102.1610
C52.74492.51211.52753.90775.01882.17942.17944.20234.20231.09151.09141.09145.97285.11925.1192
C62.74492.51213.90771.52755.01884.20234.20232.17942.17945.97285.11925.11921.09151.09141.0914
H73.10642.13311.09692.79892.17944.20231.75713.11512.57232.52713.07902.52804.90514.38314.7224
H83.10642.13311.09692.79892.17944.20231.75712.57233.11512.52712.52803.07904.90514.72244.3831
H93.10642.13312.79891.09694.20232.17943.11512.57231.75714.90514.38314.72242.52713.07902.5280
H103.10642.13312.79891.09694.20232.17942.57233.11511.75714.90514.72244.38312.52712.52803.0790
H113.82873.46612.17354.73651.09155.97282.52712.52714.90514.90511.77801.77806.87086.11626.1162
H122.68352.75102.16104.18541.09145.11923.07902.52804.38314.72241.77801.75846.11625.28554.9844
H132.68352.75102.16104.18541.09145.11922.52803.07904.72244.38311.77801.75846.11624.98445.2855
H143.82873.46614.73652.17355.97281.09154.90514.90512.52712.52716.87086.11626.11621.77801.7780
H152.68352.75104.18542.16105.11921.09144.38314.72243.07902.52806.11625.28554.98441.77801.7584
H162.68352.75104.18542.16105.11921.09144.72244.38312.52803.07906.11624.98445.28551.77801.7584

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 121.848 O1 C2 C4 121.848
C2 C3 C5 111.191 C2 C3 H7 108.294
C2 C3 H8 108.294 C2 C4 C6 111.191
C2 C4 H9 108.294 C2 C4 H10 108.294
C3 C2 C4 116.304 C3 C5 H11 111.080
C3 C5 H12 110.094 C3 C5 H13 110.094
C4 C6 H14 111.080 C4 C6 H15 110.094
C4 C6 H16 110.094 C5 C3 H7 111.223
C5 C3 H8 111.223 C6 C4 H9 111.223
C6 C4 H10 111.223 H7 C3 H8 106.431
H9 C4 H10 106.431 H11 C5 H12 109.079
H11 C5 H13 109.079 H12 C5 H13 107.328
H14 C6 H15 109.079 H14 C6 H16 109.079
H15 C6 H16 107.328
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.448      
2 C 0.454      
3 C -0.531      
4 C -0.531      
5 C -0.594      
6 C -0.594      
7 H 0.235      
8 H 0.235      
9 H 0.235      
10 H 0.235      
11 H 0.202      
12 H 0.225      
13 H 0.225      
14 H 0.202      
15 H 0.225      
16 H 0.225      


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 -2.492 2.492
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.833 0.000 0.000
y 0.000 -36.646 0.000
z 0.000 0.000 -40.495
Traceless
 xyz
x 1.738 0.000 0.000
y 0.000 2.017 0.000
z 0.000 0.000 -3.755
Polar
3z2-r2-7.511
x2-y2-0.186
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.168 0.000 0.000
y 0.000 8.629 0.000
z 0.000 0.000 7.693


<r2> (average value of r2) Å2
<r2> 211.605
(<r2>)1/2 14.547