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

using model chemistry: MP2/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/CEP-121G
 hartrees
Energy at 0K-48.211586
Energy at 298.15K-48.220238
HF Energy-47.640633
Nuclear repulsion energy122.109733
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 MP2/CEP-121G
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' 3227 3149 15.41      
2 A' 3143 3068 12.56      
3 A' 3112 3037 17.01      
4 A' 3103 3028 10.99      
5 A' 2970 2899 10.16      
6 A' 1586 1548 38.00      
7 A' 1507 1471 0.39      
8 A' 1497 1461 33.01      
9 A' 1438 1403 43.66      
10 A' 1417 1383 64.55      
11 A' 1228 1199 64.27      
12 A' 1193 1164 17.68      
13 A' 1142 1115 10.11      
14 A' 1107 1080 10.43      
15 A' 997 973 41.31      
16 A' 891 869 33.59      
17 A' 831 811 1.20      
18 A' 744 726 1.25      
19 A' 572 558 10.15      
20 A' 365 357 3.70      
21 A' 231 225 4.25      
22 A" 3210 3133 0.66      
23 A" 3095 3020 17.76      
24 A" 3067 2994 18.97      
25 A" 1504 1468 11.59      
26 A" 1489 1453 3.67      
27 A" 1240 1211 0.27      
28 A" 1167 1139 5.26      
29 A" 1145 1118 3.17      
30 A" 1075 1049 0.66      
31 A" 914 892 1.25      
32 A" 807 787 8.16      
33 A" 591 577 1.59      
34 A" 257 251 0.25      
35 A" 142 139 0.06      
36 A" 73 71 2.16      

Unscaled Zero Point Vibrational Energy (zpe) 26036.9 cm-1
Scaled (by 0.976) Zero Point Vibrational Energy (zpe) 25412.0 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 MP2/CEP-121G
ABC
0.22725 0.08376 0.07304

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.532 -0.563 0.000
C2 -0.267 -0.778 0.000
C3 0.308 -2.206 0.000
C4 0.719 0.371 0.000
C5 0.308 1.670 0.768
C6 0.308 1.670 -0.768
H7 -0.516 -2.934 0.000
H8 0.941 -2.357 -0.891
H9 0.941 -2.357 0.891
H10 1.778 0.102 0.000
H11 -0.665 1.633 1.263
H12 1.099 2.211 1.289
H13 -0.665 1.633 -1.263
H14 1.099 2.211 -1.289

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
O11.28312.46672.43752.99352.99352.57933.18323.18323.37692.67714.03502.67714.0350
C21.28311.53941.51412.62902.62902.17002.17942.17942.22712.74983.53032.74983.5303
C32.46671.53942.60903.95103.95101.09911.10421.10422.73694.15594.66894.15594.6689
C42.43751.51412.60901.56451.56453.52752.87812.87811.09242.25872.27902.25872.2790
C52.99352.62903.95101.56451.53624.73914.40124.07822.28241.09141.09112.25172.2696
C62.99352.62903.95101.56451.53624.73914.07824.40122.28242.25172.26961.09141.0911
H72.57932.17001.09913.52754.73914.73911.80311.80313.80544.73975.54434.73975.5443
H83.18322.17941.10422.87814.40124.07821.80311.78282.74654.80985.06444.31664.5883
H93.18322.17941.10422.87814.07824.40121.80311.78282.74654.31664.58834.80985.0644
H103.37692.22712.73691.09242.28242.28243.80542.74652.74653.14692.56343.14692.5634
H112.67712.74984.15592.25871.09142.25174.73974.80984.31663.14691.85622.52503.1552
H124.03503.53034.66892.27901.09112.26965.54435.06444.58832.56341.85623.15522.5780
H132.67712.74984.15592.25872.25171.09144.73974.31664.80983.14692.52503.15521.8562
H144.03503.53034.66892.27902.26961.09115.54434.58835.06442.56343.15522.57801.8562

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 121.575 O1 C2 C4 121.028
C2 C3 H7 109.533 C2 C3 H8 109.966
C2 C3 H9 109.966 C2 C4 C5 117.286
C2 C4 C6 117.286 C2 C4 H10 116.460
C3 C2 C4 117.396 C4 C5 C6 60.596
C4 C5 H11 115.366 C4 C5 H12 117.115
C4 C6 C5 60.596 C4 C6 H13 115.366
C4 C6 H14 117.115 C5 C4 C6 58.808
C5 C4 H10 117.318 C5 C6 H13 116.936
C5 C6 H14 118.518 C6 C4 H10 117.318
C6 C5 H11 116.936 C6 C5 H12 118.518
H7 C3 H8 109.845 H7 C3 H9 109.845
H8 C3 H9 107.663 H11 C5 H12 116.529
H13 C6 H14 116.529
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability