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All results from a given calculation for CHOCH(CH3)CH3 (Propanal, 2-methyl-)

using model chemistry: MP2/SDD

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/SDD
 hartrees
Energy at 0K-231.388377
Energy at 298.15K-231.396777
HF Energy-230.908668
Nuclear repulsion energy171.665241
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/SDD
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' 3127 3018 42.89      
2 A' 3121 3013 79.69      
3 A' 3080 2973 4.17      
4 A' 3014 2910 25.34      
5 A' 2955 2853 102.31      
6 A' 1595 1540 88.41      
7 A' 1547 1493 20.78      
8 A' 1544 1490 3.78      
9 A' 1461 1410 3.52      
10 A' 1420 1370 1.47      
11 A' 1355 1308 3.36      
12 A' 1217 1175 1.11      
13 A' 1211 1169 4.52      
14 A' 937 905 18.54      
15 A' 845 816 18.26      
16 A' 531 513 4.47      
17 A' 348 336 8.40      
18 A' 333 321 0.43      
19 A' 227 220 0.85      
20 A" 3124 3016 17.39      
21 A" 3113 3005 7.59      
22 A" 3014 2909 34.47      
23 A" 1533 1480 4.48      
24 A" 1528 1475 0.36      
25 A" 1444 1394 7.68      
26 A" 1376 1329 0.72      
27 A" 1146 1106 5.34      
28 A" 994 960 0.35      
29 A" 964 931 0.27      
30 A" 949 916 2.10      
31 A" 324 313 1.41      
32 A" 192 185 0.01      
33 A" 74 72 7.91      

Unscaled Zero Point Vibrational Energy (zpe) 24821.4 cm-1
Scaled (by 0.9653) Zero Point Vibrational Energy (zpe) 23960.1 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/SDD
ABC
0.24808 0.11799 0.08953

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.241 0.593 2.202
H2 -0.241 0.593 -2.202
H3 -1.743 0.149 -1.324
H4 -1.743 0.149 1.324
H5 -1.157 1.841 1.298
H6 -1.157 1.841 -1.298
C7 -0.837 0.784 -1.291
C8 -0.837 0.784 1.291
H9 0.917 1.107 0.000
C10 0.000 0.489 0.000
C11 0.439 -0.980 0.000
H12 -0.393 -1.723 0.000
O13 1.646 -1.376 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 H6 C7 C8 H9 C10 C11 H12 O13
H14.40313.85751.79521.79163.82683.54771.10482.54002.21722.79043.19933.5051
H24.40311.79523.85753.82681.79161.10483.54772.54002.21722.79043.19933.5051
H33.85751.79522.64773.17541.79101.10672.83893.12162.21492.79092.66033.9446
H41.79523.85752.64771.79103.17542.83891.10673.12162.21492.79092.66033.9446
H51.79163.82683.17541.79102.59702.81501.10482.55412.20293.49183.86924.4596
H63.82681.79161.79103.17542.59701.10482.81502.55412.20293.49183.86924.4596
C73.54771.10481.10672.83892.81501.10482.58142.20131.56632.53092.85403.5344
C81.10483.54772.83891.10671.10482.81502.58142.20131.56632.53092.85403.5344
H92.54002.54003.12163.12162.55412.55412.20132.20131.10592.14143.11882.5879
C102.21722.21722.21492.21492.20292.20291.56631.56631.10591.53322.24642.4869
C112.79042.79042.79092.79093.49183.49182.53092.53092.14141.53321.11591.2696
H123.19933.19932.66032.66033.86923.86922.85402.85403.11882.24641.11592.0685
O133.50513.50513.94463.94464.45964.45963.53443.53442.58792.48691.26962.0685

picture of Propanal, 2-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C8 H4 108.536 H1 C8 H5 108.361
H1 C8 C10 111.036 H2 C7 H3 108.536
H2 C7 H6 108.361 H2 C7 C10 111.036
H3 C7 H6 108.161 H3 C7 C10 110.740
H4 C8 H5 108.161 H4 C8 C10 110.740
H5 C8 C10 109.922 H6 C7 C10 109.922
C7 C10 C8 110.985 C7 C10 H9 109.731
C7 C10 C11 109.480 C8 C10 H9 109.731
C8 C10 C11 109.480 H9 C10 C11 107.361
C10 C11 H12 115.079 C10 C11 O13 124.808
H12 C11 O13 120.113
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability