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

using model chemistry: B3PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3PW91/6-311G*
 hartrees
Energy at 0K-271.739046
Energy at 298.15K-271.750306
Nuclear repulsion energy244.575173
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 B3PW91/6-311G*
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 3147 3030 25.09      
2 A 3126 3009 6.40      
3 A 3117 3000 47.63      
4 A 3114 2998 24.80      
5 A 3112 2996 46.60      
6 A 3107 2991 2.40      
7 A 3069 2955 3.00      
8 A 3056 2942 3.83      
9 A 3040 2927 17.51      
10 A 3037 2924 29.23      
11 A 1807 1739 187.89      
12 A 1527 1470 26.56      
13 A 1518 1461 11.74      
14 A 1507 1451 7.81      
15 A 1500 1444 0.83      
16 A 1488 1432 6.65      
17 A 1485 1430 3.84      
18 A 1428 1374 4.46      
19 A 1405 1353 7.42      
20 A 1388 1337 43.25      
21 A 1355 1304 0.34      
22 A 1335 1285 1.70      
23 A 1260 1213 54.12      
24 A 1189 1145 1.64      
25 A 1132 1090 0.03      
26 A 1083 1043 30.08      
27 A 1012 974 2.28      
28 A 972 935 1.47      
29 A 962 926 25.58      
30 A 937 902 1.16      
31 A 909 875 5.06      
32 A 718 691 3.78      
33 A 624 601 0.02      
34 A 530 510 5.43      
35 A 492 474 6.58      
36 A 332 319 1.75      
37 A 273 263 1.34      
38 A 248 238 0.37      
39 A 237 228 0.21      
40 A 200 192 0.29      
41 A 76 73 1.92      

Unscaled Zero Point Vibrational Energy (zpe) 30924.0 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 29770.6 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 B3PW91/6-311G*
ABC
0.15207 0.08529 0.08393

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 1.597 -0.266 -1.111
C2 0.816 -0.044 -0.214
H3 1.972 1.168 1.116
H4 1.953 -0.538 1.528
H5 0.544 0.473 1.912
C6 1.328 0.287 1.177
H7 -0.801 -0.322 -1.511
C8 -0.689 -0.095 -0.446
H9 -0.900 2.059 -0.748
H10 -0.863 -2.189 0.156
H11 -1.276 1.532 0.899
H12 -1.252 -1.044 1.446
H13 -2.393 -1.308 0.128
H14 -2.413 1.216 -0.409
C15 -1.329 -1.223 0.369
C16 -1.350 1.256 -0.157

Atom - Atom Distances (Å)
  O1 C2 H3 H4 H5 C6 H7 C8 H9 H10 H11 H12 H13 H14 C15 C16
O11.20942.67482.67673.28572.36912.43142.38653.43043.36963.94053.90684.30544.33213.41583.4507
C21.20942.13852.13812.20551.51862.09181.52402.76622.74932.84652.83483.46593.47212.51662.5268
H32.67482.13851.75491.77691.09334.10023.33433.53784.49783.27603.92405.11434.64344.14383.5585
H42.67672.13811.75491.77711.09324.10723.32804.47933.54153.88743.24654.63045.08893.54764.1192
H53.28572.20551.77691.77711.09093.76342.72153.41703.48632.33672.39673.87023.83232.96072.9121
C62.36911.51861.09331.09321.09093.48262.61683.43613.46022.89972.91534.18134.16823.16063.1443
H72.43142.09184.10024.10723.76343.48261.09472.50232.50373.07823.07782.48872.48582.15132.1508
C82.38651.52403.33433.32802.72152.61681.09472.18552.18552.19182.19062.16852.16641.53191.5318
H93.43042.76623.53784.47933.41703.43612.50232.18554.34321.76993.81653.78581.76543.49351.0937
H103.36962.74934.49783.54153.48633.46022.50372.18554.34323.81731.76921.76543.78351.09353.4934
H113.94052.84653.27603.88742.33672.89973.07822.19181.76993.81732.63343.14761.76232.80631.0942
H123.90682.83483.92403.24652.39672.91533.07782.19063.81651.76922.63341.76293.14581.09452.8052
H134.30543.46595.11434.63043.87024.18132.48872.16853.78581.76543.14761.76292.58031.09402.7827
H144.33213.47214.64345.08893.83234.16822.48582.16641.76543.78351.76233.14582.58032.78041.0939
C153.41582.51664.14383.54762.96073.16062.15131.53193.49351.09352.80631.09451.09402.78042.5346
C163.45072.52683.55854.11922.91213.14432.15081.53181.09373.49341.09422.80522.78271.09392.5346

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 120.137 O1 C2 C8 121.214
C2 C6 H3 108.832 C2 C6 H4 108.805
C2 C6 H5 114.386 C2 C8 H7 104.838
C2 C8 C15 110.876 C2 C8 C16 111.561
H3 C6 H4 106.761 H3 C6 H5 108.883
H4 C6 H5 108.905 C6 C2 C8 118.649
H7 C8 C15 108.839 H7 C8 C16 108.806
C8 C15 H10 111.607 C8 C15 H12 111.959
C8 C15 H13 110.230 C8 C16 H9 111.603
C8 C16 H11 112.084 C8 C16 H14 110.074
H9 C16 H11 107.983 H9 C16 H14 107.603
H10 C15 H12 107.911 H10 C15 H13 107.614
H11 C16 H14 107.292 H12 C15 H13 107.320
C15 C8 C16 111.643
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.307      
2 C 0.345      
3 H 0.255      
4 H 0.255      
5 H 0.225      
6 C -0.729      
7 H 0.242      
8 C -0.365      
9 H 0.236      
10 H 0.237      
11 H 0.220      
12 H 0.221      
13 H 0.232      
14 H 0.232      
15 C -0.650      
16 C -0.649      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.882 0.480 1.991 2.782
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.687 1.061 4.357
y 1.061 -37.442 -0.676
z 4.357 -0.676 -40.083
Traceless
 xyz
x -1.925 1.061 4.357
y 1.061 2.943 -0.676
z 4.357 -0.676 -1.018
Polar
3z2-r2-2.037
x2-y2-3.245
xy1.061
xz4.357
yz-0.676


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> 179.916
(<r2>)1/2 13.413