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

using model chemistry: MP2=FULL/6-31G**

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=FULL/6-31G**
 hartrees
Energy at 0K-231.767624
Energy at 298.15K-231.776170
HF Energy-230.996082
Nuclear repulsion energy175.728987
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=FULL/6-31G**
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' 3231 3019 21.97      
2 A' 3222 3011 40.85      
3 A' 3166 2958 6.05      
4 A' 3125 2920 13.92      
5 A' 2968 2773 104.13      
6 A' 1794 1677 109.25      
7 A' 1571 1468 13.78      
8 A' 1565 1463 6.08      
9 A' 1472 1376 2.28      
10 A' 1453 1358 2.43      
11 A' 1357 1268 0.66      
12 A' 1226 1146 0.04      
13 A' 1215 1135 9.87      
14 A' 967 903 15.85      
15 A' 874 817 18.39      
16 A' 554 517 5.57      
17 A' 359 335 6.91      
18 A' 338 316 0.21      
19 A' 247 231 0.98      
20 A" 3230 3018 12.03      
21 A" 3218 3007 3.30      
22 A" 3124 2919 19.43      
23 A" 1553 1451 2.08      
24 A" 1549 1448 0.29      
25 A" 1450 1355 2.61      
26 A" 1390 1299 0.90      
27 A" 1179 1101 0.40      
28 A" 1022 955 0.42      
29 A" 979 915 0.39      
30 A" 959 896 0.98      
31 A" 338 316 0.54      
32 A" 225 210 0.04      
33 A" 60 56 5.13      

Unscaled Zero Point Vibrational Energy (zpe) 25490.7 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 23818.5 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 MP2=FULL/6-31G**
ABC
0.25910 0.12412 0.09405

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.226 0.595 2.160
H2 -0.226 0.595 -2.160
H3 -1.692 0.114 -1.303
H4 -1.692 0.114 1.303
H5 -1.163 1.793 1.267
H6 -1.163 1.793 -1.267
C7 -0.817 0.761 -1.261
C8 -0.817 0.761 1.261
H9 0.906 1.089 0.000
C10 0.000 0.483 0.000
C11 0.440 -0.957 0.000
H12 -0.394 -1.687 0.000
O13 1.601 -1.337 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 H6 C7 C8 H9 C10 C11 H12 O13
H14.32053.79121.76511.76403.74973.47611.08822.48872.17492.74183.14683.4262
H24.32051.76513.79123.74971.76401.08823.47612.48872.17492.74183.14683.4262
H33.79121.76512.60573.11501.76071.09002.78593.06602.16742.71872.57433.8277
H41.76513.79122.60571.76073.11502.78591.09003.06602.16742.71872.57433.8277
H51.76403.74973.11501.76072.53412.75261.08822.52642.16213.42603.78274.3643
H63.74971.76401.76073.11502.53411.08822.75262.52642.16213.42603.78274.3643
C73.47611.08821.09002.78592.75261.08822.52262.16001.52812.47432.78673.4411
C81.08823.47612.78591.09001.08822.75262.52262.16001.52812.47432.78673.4411
H92.48872.48873.06603.06602.52642.52642.16002.16001.09022.09853.06602.5243
C102.17492.17492.16742.16742.16212.16211.52811.52811.09021.50562.20592.4244
C112.74182.74182.71872.71873.42603.42602.47432.47432.09851.50561.10891.2219
H123.14683.14682.57432.57433.78273.78272.78672.78673.06602.20591.10892.0258
O133.42623.42623.82773.82774.36434.36433.44113.44112.52432.42441.22192.0258

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 108.257 H1 C8 H5 108.286
H1 C8 C10 111.354 H2 C7 H3 108.257
H2 C7 H6 108.286 H2 C7 C10 111.354
H3 C7 H6 107.861 H3 C7 C10 110.646
H4 C8 H5 107.861 H4 C8 C10 110.646
H5 C8 C10 110.325 H6 C7 C10 110.325
C7 C10 C8 111.261 C7 C10 H9 110.046
C7 C10 C11 109.293 C8 C10 H9 110.046
C8 C10 C11 109.293 H9 C10 C11 106.793
C10 C11 H12 114.211 C10 C11 O13 125.146
H12 C11 O13 120.643
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability