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All results from a given calculation for C5H8O (Methyl cyclopropyl ketone)

using model chemistry: MP4/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP4/3-21G
 hartrees
Energy at 0K-267.961900
Energy at 298.15K-267.970575
HF Energy-267.319882
Nuclear repulsion energy227.585991
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 MP4/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3253 3155        
2 A' 3194 3097        
3 A' 3151 3056        
4 A' 3133 3038        
5 A' 3027 2936        
6 A' 1623 1574        
7 A' 1538 1492        
8 A' 1519 1473        
9 A' 1440 1396        
10 A' 1392 1350        
11 A' 1195 1159        
12 A' 1173 1138        
13 A' 1123 1089        
14 A' 1103 1069        
15 A' 969 940        
16 A' 860 834        
17 A' 826 801        
18 A' 742 719        
19 A' 572 555        
20 A' 376 365        
21 A' 249 241        
22 A" 3238 3140        
23 A" 3147 3052        
24 A" 3089 2996        
25 A" 1557 1510        
26 A" 1510 1464        
27 A" 1240 1202        
28 A" 1166 1131        
29 A" 1154 1119        
30 A" 1095 1062        
31 A" 916 888        
32 A" 794 770        
33 A" 629 610        
34 A" 266 258        
35 A" 155 151        
36 A" 68 66        

Unscaled Zero Point Vibrational Energy (zpe) 26239.8 cm-1
Scaled (by 0.9698) Zero Point Vibrational Energy (zpe) 25447.3 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 MP4/3-21G
ABC
0.23069 0.08691 0.07557

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.347 -0.847 0.000
C2 -0.088 -0.798 0.000
C3 0.793 -2.057 0.000
C4 0.637 0.519 0.000
C5 -0.088 1.656 0.762
C6 -0.088 1.656 -0.762
H7 0.149 -2.944 0.000
H8 1.439 -2.062 -0.892
H9 1.439 -2.062 0.892
H10 1.723 0.493 0.000
H11 -1.012 1.359 1.252
H12 0.526 2.387 1.281
H13 -1.012 1.359 -1.252
H14 0.526 2.387 -1.281

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
O11.26002.45842.40892.90412.90412.57513.16723.16723.35032.55863.95132.55863.9513
C21.26001.53661.50322.56982.56982.15862.17352.17352.22452.65933.48762.65933.4876
C32.45841.53662.58013.89143.89141.09651.10081.10082.71424.06094.63244.06094.6324
C42.40891.50322.58011.54911.54913.49652.84572.84571.08652.23432.26812.23432.2681
C52.90412.56983.89141.54911.52314.66854.34634.02162.28331.08751.08682.23512.2546
C62.90412.56983.89141.54911.52314.66854.02164.34632.28332.23512.25461.08751.0868
H72.57512.15861.09653.49654.66854.66851.79901.79903.78034.62865.49544.62865.4954
H83.16722.17351.10082.84574.34634.02161.79901.78362.72134.72255.03474.22344.5583
H93.16722.17351.10082.84574.02164.34631.79901.78362.72134.22344.55834.72255.0347
H103.35032.22452.71421.08652.28332.28333.78032.72132.72133.13022.58083.13022.5808
H112.55862.65934.06092.23431.08752.23514.62864.72254.22343.13021.85062.50353.1366
H123.95133.48764.63242.26811.08682.25465.49545.03474.55832.58081.85063.13662.5620
H132.55862.65934.06092.23432.23511.08754.62864.22344.72253.13022.50353.13661.8506
H143.95133.48764.63242.26812.25461.08685.49544.55835.03472.58083.13662.56201.8506

picture of Methyl cyclopropyl ketone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 122.757 O1 C2 C4 121.089
C2 C3 H7 108.982 C2 C3 H8 109.891
C2 C3 H9 109.891 C2 C4 C5 114.677
C2 C4 C6 114.677 C2 C4 H10 117.498
C3 C2 C4 116.154 C4 C5 C6 60.555
C4 C5 H11 114.727 C4 C5 H12 117.661
C4 C6 C5 60.555 C4 C6 H13 114.727
C4 C6 H14 117.661 C5 C4 C6 58.891
C5 C4 H10 119.020 C5 C6 H13 116.791
C5 C6 H14 118.552 C6 C4 H10 119.020
C6 C5 H11 116.791 C6 C5 H12 118.552
H7 C3 H8 109.923 H7 C3 H9 109.923
H8 C3 H9 108.221 H11 C5 H12 116.666
H13 C6 H14 116.666
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability