return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: CCSD/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCSD/aug-cc-pVDZ
 hartrees
Energy at 0K-269.822653
Energy at 298.15K-269.831272
HF Energy-268.864851
Nuclear repulsion energy228.824827
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 CCSD/aug-cc-pVDZ
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' 3262 3143 7.10      
2 A' 3191 3074 8.70      
3 A' 3166 3050 10.83      
4 A' 3159 3043 10.27      
5 A' 3040 2929 4.64      
6 A' 1776 1711 130.33      
7 A' 1502 1447 16.64      
8 A' 1461 1408 14.36      
9 A' 1433 1381 88.69      
10 A' 1378 1328 7.12      
11 A' 1225 1180 5.93      
12 A' 1204 1160 69.69      
13 A' 1109 1068 9.31      
14 A' 1055 1017 7.91      
15 A' 979 943 34.83      
16 A' 927 893 17.27      
17 A' 800 771 0.93      
18 A' 750 723 0.40      
19 A' 590 569 13.40      
20 A' 370 357 3.85      
21 A' 236 227 4.07      
22 A" 3248 3130 0.38      
23 A" 3154 3038 13.79      
24 A" 3111 2997 10.15      
25 A" 1471 1417 7.73      
26 A" 1453 1400 2.19      
27 A" 1203 1159 0.41      
28 A" 1120 1079 1.73      
29 A" 1082 1043 1.42      
30 A" 1046 1007 1.69      
31 A" 884 852 1.03      
32 A" 832 802 5.49      
33 A" 596 574 1.71      
34 A" 257 248 0.64      
35 A" 148 143 0.01      
36 A" 60 58 1.62      

Unscaled Zero Point Vibrational Energy (zpe) 26139.2 cm-1
Scaled (by 0.9634) Zero Point Vibrational Energy (zpe) 25182.5 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 CCSD/aug-cc-pVDZ
ABC
0.23684 0.08656 0.07571

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.491 -0.561 0.000
C2 -0.282 -0.763 0.000
C3 0.301 -2.167 0.000
C4 0.703 0.371 0.000
C5 0.301 1.641 0.753
C6 0.301 1.641 -0.753
H7 -0.507 -2.912 0.000
H8 0.941 -2.301 -0.890
H9 0.941 -2.301 0.890
H10 1.762 0.098 0.000
H11 -0.670 1.604 1.253
H12 1.095 2.179 1.276
H13 -0.670 1.604 -1.253
H14 1.095 2.179 -1.276

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
O11.22532.40632.38322.93692.93692.54893.12053.12053.31852.63323.97762.63323.9776
C21.22531.52031.50212.58602.58602.16102.15782.15782.21792.70673.49002.70673.4900
C32.40631.52032.56963.88203.88201.09931.10481.10482.69514.09114.59844.09114.5984
C42.38321.50212.56961.53031.53033.49912.82662.82661.09362.23082.24732.23082.2473
C52.93692.58603.88201.53031.50514.68564.31893.99672.25451.09271.09272.22872.2437
C62.93692.58603.88201.53031.50514.68563.99674.31892.25452.22872.24371.09271.0927
H72.54892.16101.09933.49914.68564.68561.80671.80673.76954.69035.48774.69035.4877
H83.12052.15781.10482.82664.31893.99671.80671.78022.68714.73764.97854.24064.4993
H93.12052.15781.10482.82663.99674.31891.80671.78022.68714.24064.49934.73764.9785
H103.31852.21792.69511.09362.25452.25453.76952.68712.68713.12292.53023.12292.5302
H112.63322.70674.09112.23081.09272.22874.69034.73764.24063.12291.85632.50683.1372
H123.97763.49004.59842.24731.09272.24375.48774.97854.49932.53021.85633.13722.5516
H132.63322.70674.09112.23082.22871.09274.69034.24064.73763.12292.50683.13721.8563
H143.97763.49004.59842.24732.24371.09275.48774.49934.97852.53023.13722.55161.8563

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 122.059 O1 C2 C4 121.480
C2 C3 H7 110.125 C2 C3 H8 109.548
C2 C3 H9 109.548 C2 C4 C5 117.029
C2 C4 C6 117.029 C2 C4 H10 116.522
C3 C2 C4 116.461 C4 C5 C6 60.544
C4 C5 H11 115.511 C4 C5 H12 116.923
C4 C6 C5 60.544 C4 C6 H13 115.511
C4 C6 H14 116.923 C5 C4 C6 58.913
C5 C4 H10 117.493 C5 C6 H13 117.281
C5 C6 H14 118.610 C6 C4 H10 117.493
C6 C5 H11 117.281 C6 C5 H12 118.610
H7 C3 H8 110.114 H7 C3 H9 110.114
H8 C3 H9 107.345 H11 C5 H12 116.291
H13 C6 H14 116.291
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability