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: MP2/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-270.000454
Energy at 298.15K-270.009100
HF Energy-268.937629
Nuclear repulsion energy231.255876
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/Def2TZVPP
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' 3304 3143 1.26      
2 A' 3233 3076 4.60      
3 A' 3207 3052 6.84      
4 A' 3192 3038 6.00      
5 A' 3078 2928 2.22      
6 A' 1750 1665 96.39      
7 A' 1504 1431 10.27      
8 A' 1477 1405 15.07      
9 A' 1432 1362 112.30      
10 A' 1383 1316 11.56      
11 A' 1234 1175 4.46      
12 A' 1204 1146 79.02      
13 A' 1116 1062 11.37      
14 A' 1061 1009 10.03      
15 A' 977 930 44.55      
16 A' 936 890 14.92      
17 A' 817 778 2.01      
18 A' 761 724 0.58      
19 A' 593 565 10.87      
20 A' 372 354 3.83      
21 A' 239 227 3.91      
22 A" 3290 3130 0.42      
23 A" 3189 3034 7.21      
24 A" 3158 3005 4.36      
25 A" 1492 1419 9.53      
26 A" 1468 1397 3.95      
27 A" 1219 1160 0.38      
28 A" 1130 1075 2.03      
29 A" 1096 1043 2.29      
30 A" 1050 999 2.86      
31 A" 883 841 0.06      
32 A" 848 807 6.17      
33 A" 601 572 1.03      
34 A" 260 247 0.37      
35 A" 143 136 0.01      
36 A" 69 66 1.71      

Unscaled Zero Point Vibrational Energy (zpe) 26382.8 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 25103.2 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/Def2TZVPP
ABC
0.24079 0.08880 0.07743

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 -1.486 -0.553 0.000
C2 -0.287 -0.754 0.000
C3 0.303 -2.143 0.000
C4 0.695 0.365 0.000
C5 0.303 1.623 0.743
C6 0.303 1.623 -0.743
H7 -0.494 -2.880 0.000
H8 0.936 -2.277 -0.878
H9 0.936 -2.277 0.878
H10 1.741 0.095 0.000
H11 -0.654 1.591 1.241
H12 1.089 2.148 1.262
H13 -0.654 1.591 -1.241
H14 1.089 2.148 -1.262

Atom - Atom Distances (Å)
  O1 C2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
O11.21522.39362.36642.91342.91342.52983.09933.09933.29112.61303.94002.61303.9400
C21.21521.50971.48912.55932.55932.13632.14142.14142.19872.67803.45132.67803.4513
C32.39361.50972.53903.83883.83881.08531.09011.09012.66064.04974.54204.04974.5420
C42.36641.48912.53901.51241.51243.45642.79452.79451.08002.20502.21992.20502.2199
C52.91342.55933.83881.51241.48644.63304.27023.95302.22531.07951.07882.20332.2171
C62.91342.55933.83881.51241.48644.63303.95304.27022.22532.20332.21711.07951.0788
H72.52982.13631.08533.45644.63304.63301.78261.78263.72124.64285.42094.64285.4209
H83.09932.14141.09012.79454.27023.95301.78261.75522.65444.68774.91784.19744.4446
H93.09932.14141.09012.79453.95304.27021.78261.75522.65444.19744.44464.68774.9178
H103.29112.19872.66061.08002.22532.22533.72122.65442.65443.08412.49633.08412.4963
H112.61302.67804.04972.20501.07952.20334.64284.68774.19743.08411.83082.48193.1011
H123.94003.45134.54202.21991.07882.21715.42094.91784.44462.49631.83083.10112.5242
H132.61302.67804.04972.20502.20331.07954.64284.19744.68773.08412.48193.10111.8308
H143.94003.45134.54202.21992.21711.07885.42094.44464.91782.49633.10112.52421.8308

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 122.533 O1 C2 C4 121.764
C2 C3 H7 109.740 C2 C3 H8 109.860
C2 C3 H9 109.860 C2 C4 C5 117.001
C2 C4 C6 117.001 C2 C4 H10 116.802
C3 C2 C4 115.702 C4 C5 C6 60.567
C4 C5 H11 115.572 C4 C5 H12 116.909
C4 C6 C5 60.567 C4 C6 H13 115.572
C4 C6 H14 116.909 C5 C4 C6 58.866
C5 C4 H10 117.301 C5 C6 H13 117.458
C5 C6 H14 118.750 C6 C4 H10 117.301
C6 C5 H11 117.458 C6 C5 H12 118.750
H7 C3 H8 110.053 H7 C3 H9 110.053
H8 C3 H9 107.241 H11 C5 H12 116.049
H13 C6 H14 116.049
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability