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All results from a given calculation for CH3COCH2CH3 (2-Butanone)

using model chemistry: B3LYP/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/aug-cc-pVTZ
 hartrees
Energy at 0K-232.564575
Energy at 298.15K 
HF Energy-232.564575
Nuclear repulsion energy176.109742
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/aug-cc-pVTZ
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' 3137 3035 9.94      
2 A' 3103 3002 20.76      
3 A' 3042 2943 22.90      
4 A' 3031 2933 8.22      
5 A' 3009 2911 17.28      
6 A' 1779 1721 164.68      
7 A' 1500 1452 7.93      
8 A' 1467 1420 23.42      
9 A' 1451 1404 4.90      
10 A' 1417 1371 5.31      
11 A' 1387 1342 40.82      
12 A' 1371 1327 12.35      
13 A' 1188 1149 70.33      
14 A' 1107 1071 1.68      
15 A' 1000 968 2.10      
16 A' 939 909 14.94      
17 A' 759 734 3.71      
18 A' 588 569 8.19      
19 A' 402 389 3.72      
20 A' 246 238 5.31      
21 A" 3110 3009 22.53      
22 A" 3082 2982 9.27      
23 A" 3029 2931 7.43      
24 A" 1493 1445 7.66      
25 A" 1478 1430 9.02      
26 A" 1286 1244 0.01      
27 A" 1135 1098 0.22      
28 A" 954 923 3.07      
29 A" 754 730 2.84      
30 A" 475 459 0.14      
31 A" 200 194 0.18      
32 A" 98 95 0.16      
33 A" 37i 36i 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 24490.9 cm-1
Scaled (by 0.9675) Zero Point Vibrational Energy (zpe) 23695.0 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/aug-cc-pVTZ
ABC
0.31972 0.11949 0.09133

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.069 1.634 0.000
C2 0.000 0.556 0.000
C3 0.500 -0.883 0.000
C4 -0.610 -1.928 0.000
O5 -1.176 0.829 0.000
H6 0.605 2.616 0.000
H7 1.711 1.532 0.877
H8 1.711 1.532 -0.877
H9 -0.189 -2.933 0.000
H10 -1.246 -1.822 0.877
H11 -1.246 -1.822 -0.877
H12 1.154 -1.005 -0.869
H13 1.154 -1.005 0.869

Atom - Atom Distances (Å)
  C1 C2 C3 C4 O5 H6 H7 H8 H9 H10 H11 H12 H13
C11.51802.58003.93792.38491.08691.09181.09184.73714.25144.25142.77972.7797
C21.51801.52312.55811.20692.14692.15642.15643.49462.82472.82472.12722.1272
C32.58001.52311.52462.39503.50042.84052.84052.16312.16802.16801.09451.0945
C43.93792.55811.52462.81444.70384.25804.25801.09011.08891.08892.17222.1722
O52.38491.20692.39502.81442.52263.09803.09803.88962.79332.79333.08983.0898
H61.08692.14693.50044.70382.52261.78031.78035.60594.88814.88813.76463.7646
H71.09182.15642.84054.25803.09801.78031.75474.93134.47184.80373.13012.5979
H81.09182.15642.84054.25803.09801.78031.75474.93134.80374.47182.59793.1301
H94.73713.49462.16311.09013.88965.60594.93134.93131.76731.76732.50482.5048
H104.25142.82472.16801.08892.79334.88814.47184.80371.76731.75463.07852.5355
H114.25142.82472.16801.08892.79334.88814.80374.47181.76731.75462.53553.0785
H122.77972.12721.09452.17223.08983.76463.13012.59792.50483.07852.53551.7373
H132.77972.12721.09452.17223.08983.76462.59793.13012.50482.53553.07851.7373

picture of 2-Butanone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 116.072 C1 C2 O5 121.721
C2 C1 H6 109.902 C2 C1 H7 110.365
C2 C1 H8 110.365 C2 C3 C4 114.144
C2 C3 H12 107.583 C2 C3 H13 107.583
C3 C2 O5 122.207 C3 C4 H9 110.537
C3 C4 H10 111.008 C3 C4 H11 111.008
C4 C3 H12 110.999 C4 C3 H13 110.999
H6 C1 H7 109.604 H6 C1 H8 109.604
H7 C1 H8 106.952 H9 C4 H10 108.406
H9 C4 H11 108.406 H10 C4 H11 107.361
H12 C3 H13 105.051
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability