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

using model chemistry: MP2/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-231.383905
Energy at 298.15K-231.392304
HF Energy-230.907809
Nuclear repulsion energy171.635686
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/LANL2DZ
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' 3128 3012 43.44      
2 A' 3122 3007 81.50      
3 A' 3082 2969 4.12      
4 A' 3015 2904 25.68      
5 A' 2958 2848 103.10      
6 A' 1595 1536 87.92      
7 A' 1546 1489 20.81      
8 A' 1544 1487 3.72      
9 A' 1461 1407 3.52      
10 A' 1420 1368 1.43      
11 A' 1356 1306 3.36      
12 A' 1217 1173 1.18      
13 A' 1211 1166 4.50      
14 A' 938 903 18.61      
15 A' 845 814 18.09      
16 A' 531 512 4.48      
17 A' 348 335 8.44      
18 A' 333 321 0.43      
19 A' 228 219 0.85      
20 A" 3125 3010 17.84      
21 A" 3114 2999 7.56      
22 A" 3015 2904 34.85      
23 A" 1533 1477 4.43      
24 A" 1528 1472 0.37      
25 A" 1444 1391 7.65      
26 A" 1377 1326 0.72      
27 A" 1146 1104 5.31      
28 A" 994 958 0.34      
29 A" 965 929 0.28      
30 A" 949 914 2.11      
31 A" 324 312 1.42      
32 A" 192 185 0.01      
33 A" 75 72 7.94      

Unscaled Zero Point Vibrational Energy (zpe) 24829.1 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 23912.9 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/LANL2DZ
ABC
0.24795 0.11796 0.08950

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/LANL2DZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.241 0.594 2.202
H2 -0.241 0.594 -2.202
H3 -1.743 0.148 -1.325
H4 -1.743 0.148 1.325
H5 -1.158 1.841 1.299
H6 -1.158 1.841 -1.299
C7 -0.837 0.784 -1.291
C8 -0.837 0.784 1.291
H9 0.916 1.108 0.000
C10 0.000 0.489 0.000
C11 0.440 -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
H14.40413.85891.79531.79173.82743.54871.10482.54032.21772.79123.20003.5060
H24.40411.79533.85893.82741.79171.10483.54872.54032.21772.79123.20003.5060
H33.85891.79532.64933.17631.79101.10682.84013.12202.21552.79142.66043.9450
H41.79533.85892.64931.79103.17632.84011.10683.12202.21552.79142.66043.9450
H51.79173.82743.17631.79102.59742.81561.10492.55462.20353.49233.86924.4604
H63.82741.79171.79103.17632.59741.10492.81562.55462.20353.49233.86924.4604
C73.54871.10481.10682.84012.81561.10492.58222.20161.56682.53142.85413.5351
C81.10483.54872.84011.10681.10492.81562.58222.20161.56682.53142.85413.5351
H92.54032.54033.12203.12202.55462.55462.20162.20161.10592.14183.11892.5887
C102.21772.21772.21552.21552.20352.20351.56681.56681.10591.53332.24622.4872
C112.79122.79122.79142.79143.49233.49232.53142.53142.14181.53331.11581.2697
H123.20003.20002.66042.66043.86923.86922.85412.85413.11892.24621.11582.0686
O133.50603.50603.94503.94504.46044.46043.53513.53512.58872.48721.26972.0686

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 108.533 H1 C8 H5 108.357
H1 C8 C10 111.040 H2 C7 H3 108.533
H2 C7 H6 108.357 H2 C7 C10 111.040
H3 C7 H6 108.154 H3 C7 C10 110.746
H4 C8 H5 108.154 H4 C8 C10 110.746
H5 C8 C10 109.924 H6 C7 C10 109.924
C7 C10 C8 110.987 C7 C10 H9 109.718
C7 C10 C11 109.481 C8 C10 H9 109.718
C8 C10 C11 109.481 H9 C10 C11 107.383
C10 C11 H12 115.061 C10 C11 O13 124.818
H12 C11 O13 120.121
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability