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

using model chemistry: B3LYP/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3LYP/6-31+G**
 hartrees
Energy at 0K-271.807134
Energy at 298.15K-271.818379
Nuclear repulsion energy243.431231
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 B3LYP/6-31+G**
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 3148 3035 21.01      
2 A 3124 3012 4.77      
3 A 3114 3003 38.64      
4 A 3112 3001 26.57      
5 A 3110 2999 42.12      
6 A 3105 2994 1.49      
7 A 3067 2957 2.85      
8 A 3055 2946 4.21      
9 A 3040 2931 18.32      
10 A 3037 2928 30.37      
11 A 1777 1713 205.39      
12 A 1518 1464 21.84      
13 A 1510 1456 10.83      
14 A 1500 1447 6.89      
15 A 1495 1441 0.55      
16 A 1481 1428 6.16      
17 A 1479 1426 3.89      
18 A 1426 1375 2.54      
19 A 1404 1354 4.82      
20 A 1387 1338 37.06      
21 A 1351 1303 0.80      
22 A 1335 1287 2.19      
23 A 1253 1208 52.10      
24 A 1186 1143 1.11      
25 A 1120 1080 0.09      
26 A 1081 1042 23.78      
27 A 1004 968 2.44      
28 A 968 933 0.74      
29 A 962 928 24.91      
30 A 938 904 0.78      
31 A 896 864 3.83      
32 A 712 687 3.28      
33 A 620 597 0.07      
34 A 528 509 3.96      
35 A 497 479 8.13      
36 A 333 321 1.81      
37 A 274 264 1.65      
38 A 246 237 0.47      
39 A 233 225 0.16      
40 A 201 194 0.37      
41 A 76 74 2.51      

Unscaled Zero Point Vibrational Energy (zpe) 30850.7 cm-1
Scaled (by 0.9642) Zero Point Vibrational Energy (zpe) 29746.3 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 B3LYP/6-31+G**
ABC
0.15050 0.08934 0.07898

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31+G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 1.600 -0.288 -1.116
C2 0.818 -0.048 -0.210
H3 1.982 1.191 1.093
H4 1.978 -0.514 1.530
H5 0.560 0.496 1.911
C6 1.344 0.305 1.175
H7 -0.807 -0.343 -1.506
C8 -0.693 -0.101 -0.444
H9 -0.903 2.056 -0.778
H10 -0.889 -2.196 0.173
H11 -1.281 1.552 0.881
H12 -1.249 -1.036 1.466
H13 -2.409 -1.290 0.158
H14 -2.420 1.215 -0.427
C15 -1.341 -1.223 0.390
C16 -1.356 1.263 -0.173

Atom - Atom Distances (Å)
  O1 C2 H3 H4 H5 C6 H7 C8 H9 H10 H11 H12 H13 H14 C15 C16
O11.22042.68542.68153.29472.38002.43922.39653.44593.39083.95843.91674.32484.34733.43433.4684
C21.22042.14252.14272.20501.52382.09881.52902.77652.77012.85522.83833.47743.48232.53022.5382
H32.68542.14251.76081.78121.09474.10953.34443.54524.53463.28903.94145.12984.65694.16713.5703
H42.68152.14271.76081.78181.09474.12293.34594.49763.58973.91223.26884.66155.11483.57974.1436
H53.29472.20501.78121.78181.09203.77502.73343.43563.51692.35892.41183.88373.85562.98042.9330
C62.38001.52381.09471.09471.09203.49832.63363.45393.49982.92082.93374.20374.19133.18803.1663
H72.43922.09884.10954.12293.77503.49831.09562.50952.50193.08463.08382.49702.48972.15802.1583
C82.39651.52903.34443.34592.73342.63361.09562.19302.19272.19842.19792.17332.17231.54121.5407
H93.44592.77653.54524.49763.43563.45392.50952.19304.35721.77423.83583.78711.76953.50841.0951
H103.39082.77014.53463.58973.51693.49982.50192.19274.35723.83421.77441.77013.78751.09493.5075
H113.95842.85523.28903.91222.35892.92083.08462.19841.77423.83422.65303.14211.76692.81841.0956
H123.91672.83833.94143.26882.41182.93373.08382.19793.83581.77442.65301.76733.16611.09582.8254
H134.32483.47745.12984.66153.88374.20372.49702.17333.78711.77013.14211.76732.57311.09542.7817
H144.34733.48234.65695.11483.85564.19132.48972.17231.76953.78751.76693.16612.57312.78911.0953
C153.43432.53024.16713.57972.98043.18802.15801.54123.50841.09492.81841.09581.09542.78912.5491
C163.46842.53823.57034.14362.93303.16632.15831.54071.09513.50751.09562.82542.78171.09532.5491

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 119.876 O1 C2 C8 120.888
C2 C6 H3 108.706 C2 C6 H4 108.720
C2 C6 H5 113.883 C2 C8 H7 104.993
C2 C8 C15 110.996 C2 C8 C16 111.556
H3 C6 H4 107.075 H3 C6 H5 109.086
H4 C6 H5 109.151 C6 C2 C8 119.236
H7 C8 C15 108.675 H7 C8 C16 108.733
C8 C15 H10 111.442 C8 C15 H12 111.807
C8 C15 H13 109.883 C8 C16 H9 111.497
C8 C16 H11 111.896 C8 C16 H14 109.840
H9 C16 H11 108.165 H9 C16 H14 107.772
H10 C15 H12 108.184 H10 C15 H13 107.837
H11 C16 H14 107.500 H12 C15 H13 107.524
C15 C8 C16 111.611
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.420     -0.561
2 C 0.295     0.592
3 H 0.181     0.116
4 H 0.174     0.105
5 H 0.161     0.093
6 C -0.466     -0.381
7 H 0.158     -0.021
8 C 0.136     0.257
9 H 0.163     0.097
10 H 0.155     0.072
11 H 0.145     0.087
12 H 0.150     0.074
13 H 0.151     0.097
14 H 0.152     0.109
15 C -0.584     -0.343
16 C -0.553     -0.392


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.166 1.785 1.497 3.181
CHELPG        
AIM        
ESP 2.190 1.804 1.519 3.219


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.774 1.289 4.934
y 1.289 -38.001 -0.823
z 4.934 -0.823 -40.982
Traceless
 xyz
x -2.283 1.289 4.934
y 1.289 3.377 -0.823
z 4.934 -0.823 -1.094
Polar
3z2-r2-2.189
x2-y2-3.773
xy1.289
xz4.934
yz-0.823


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.165 -0.059 -0.135
y -0.059 8.575 0.210
z -0.135 0.210 9.209


<r2> (average value of r2) Å2
<r2> 182.017
(<r2>)1/2 13.491