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All results from a given calculation for C5H10O (2-Butanone, 3-methyl-)

using model chemistry: B3PW91/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3PW91/6-31G**
 hartrees
Energy at 0K-271.692920
Energy at 298.15K-271.704129
Nuclear repulsion energy244.151549
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 B3PW91/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3168 3036 18.44      
2 A 3149 3018 4.04      
3 A 3139 3009 25.17      
4 A 3138 3007 17.08      
5 A 3135 3004 50.04      
6 A 3130 3000 3.05      
7 A 3084 2956 4.29      
8 A 3069 2942 2.65      
9 A 3054 2927 15.92      
10 A 3051 2924 24.41      
11 A 1822 1746 163.89      
12 A 1520 1457 21.01      
13 A 1512 1449 9.05      
14 A 1501 1439 5.28      
15 A 1495 1433 0.21      
16 A 1480 1419 5.21      
17 A 1479 1417 3.33      
18 A 1425 1366 3.26      
19 A 1403 1345 4.70      
20 A 1384 1327 39.89      
21 A 1353 1297 0.59      
22 A 1331 1275 1.44      
23 A 1260 1208 56.14      
24 A 1188 1138 1.56      
25 A 1130 1083 0.04      
26 A 1079 1034 31.39      
27 A 1008 966 2.35      
28 A 969 929 2.06      
29 A 962 922 22.22      
30 A 934 895 1.25      
31 A 908 871 4.79      
32 A 719 689 3.41      
33 A 618 592 0.02      
34 A 528 506 5.61      
35 A 490 470 6.41      
36 A 331 317 1.85      
37 A 273 261 1.41      
38 A 244 234 0.32      
39 A 231 221 0.13      
40 A 196 188 0.22      
41 A 70 67 2.01      

Unscaled Zero Point Vibrational Energy (zpe) 30979.4 cm-1
Scaled (by 0.9584) Zero Point Vibrational Energy (zpe) 29690.6 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 B3PW91/6-31G**
ABC
0.15165 0.08487 0.08369

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 1.601 -0.234 -1.121
C2 0.817 -0.040 -0.213
H3 1.959 1.145 1.154
H4 1.971 -0.577 1.508
H5 0.543 0.398 1.930
C6 1.330 0.250 1.189
H7 -0.798 -0.284 -1.521
C8 -0.690 -0.084 -0.449
H9 -0.896 2.079 -0.698
H10 -0.892 -2.197 0.078
H11 -1.272 1.510 0.938
H12 -1.235 -1.090 1.419
H13 -2.407 -1.285 0.113
H14 -2.414 1.229 -0.378
C15 -1.337 -1.231 0.338
C16 -1.349 1.263 -0.126

Atom - Atom Distances (Å)
  O1 C2 H3 H4 H5 C6 H7 C8 H9 H10 H11 H12 H13 H14 C15 C16
O11.21552.68492.67693.29062.37552.43252.39213.43033.39163.94143.90254.32364.33723.42833.4545
C21.21552.13972.14042.20421.52062.09241.52572.76782.76692.84412.82453.47143.47492.52212.5291
H32.68492.13971.75811.77931.09414.09913.33153.52954.52263.25853.90775.10414.63454.14463.5493
H42.67692.14041.75811.78051.09404.11413.33954.48813.58643.89813.24804.64905.10343.56914.1326
H53.29062.20421.77931.78051.09183.76422.72213.43523.49582.34742.37413.85123.84122.95342.9244
C62.37551.52061.09411.09401.09183.48672.62203.44423.48702.90172.90384.18114.17503.16763.1517
H72.43252.09244.09914.11413.76423.48671.09572.50472.49443.08073.07972.50222.49142.15432.1548
C82.39211.52573.33153.33952.72212.62201.09572.18722.18702.19172.19112.16972.16811.53441.5340
H93.43032.76783.52954.48813.43523.44422.50472.18724.34591.77263.82683.77591.76893.49681.0945
H103.39162.76694.52263.58643.49583.48702.49442.18704.34593.82421.77231.76923.77621.09433.4960
H113.94142.84413.25853.89812.34742.90173.08072.19171.77263.82422.64483.12731.76512.80721.0953
H123.90252.82453.90773.24802.37412.90383.07972.19113.82681.77232.64481.76543.16191.09552.8179
H134.32363.47145.10414.64903.85124.18112.50222.16973.77591.76923.12731.76542.56101.09492.7692
H144.33723.47494.63455.10343.84124.17502.49142.16811.76893.77621.76513.16192.56102.77931.0948
C153.42832.52214.14463.56912.95343.16762.15431.53443.49681.09432.80721.09551.09492.77932.5373
C163.45452.52913.54934.13262.92443.15172.15481.53401.09453.49601.09532.81792.76921.09482.5373

picture of 2-Butanone, 3-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C6 120.091 O1 C2 C8 121.115
C2 C6 H3 108.745 C2 C6 H4 108.804
C2 C6 H5 114.070 C2 C8 H7 104.725
C2 C8 C15 111.015 C2 C8 C16 111.494
H3 C6 H4 106.925 H3 C6 H5 108.969
H4 C6 H5 109.088 C6 C2 C8 118.794
H7 C8 C15 108.849 H7 C8 C16 108.911
C8 C15 H10 111.502 C8 C15 H12 111.764
C8 C15 H13 110.097 C8 C16 H9 111.536
C8 C16 H11 111.845 C8 C16 H14 110.000
H9 C16 H11 108.083 H9 C16 H14 107.796
H10 C15 H12 108.065 H10 C15 H13 107.829
H11 C16 H14 107.403 H12 C15 H13 107.410
C15 C8 C16 111.570
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.445      
2 C 0.437      
3 H 0.169      
4 H 0.169      
5 H 0.130      
6 C -0.460      
7 H 0.151      
8 C -0.191      
9 H 0.143      
10 H 0.144      
11 H 0.129      
12 H 0.129      
13 H 0.139      
14 H 0.139      
15 C -0.391      
16 C -0.391      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.857 0.429 2.026 2.782
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.940 0.929 4.386
y 0.929 -36.692 -0.597
z 4.386 -0.597 -39.461
Traceless
 xyz
x -1.864 0.929 4.386
y 0.929 3.009 -0.597
z 4.386 -0.597 -1.145
Polar
3z2-r2-2.291
x2-y2-3.248
xy0.929
xz4.386
yz-0.597


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


<r2> (average value of r2) Å2
<r2> 179.989
(<r2>)1/2 13.416