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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-231.701956
Energy at 298.15K-231.710492
HF Energy-230.983002
Nuclear repulsion energy175.464518
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' 3200 3015 20.22      
2 A' 3191 3007 38.20      
3 A' 3136 2954 5.69      
4 A' 3101 2922 12.87      
5 A' 2948 2778 101.96      
6 A' 1791 1687 110.54      
7 A' 1573 1482 17.57      
8 A' 1568 1477 7.09      
9 A' 1477 1392 3.76      
10 A' 1451 1368 1.99      
11 A' 1359 1280 0.52      
12 A' 1228 1157 0.09      
13 A' 1217 1147 8.26      
14 A' 967 911 17.72      
15 A' 876 825 19.98      
16 A' 555 523 5.80      
17 A' 362 341 6.93      
18 A' 340 320 0.27      
19 A' 246 232 0.88      
20 A" 3199 3014 11.33      
21 A" 3188 3003 2.91      
22 A" 3100 2921 17.80      
23 A" 1556 1466 2.69      
24 A" 1551 1461 0.60      
25 A" 1456 1372 4.89      
26 A" 1393 1312 0.53      
27 A" 1178 1109 0.51      
28 A" 1022 963 0.54      
29 A" 980 923 0.57      
30 A" 961 905 1.34      
31 A" 340 320 0.67      
32 A" 226 213 0.04      
33 A" 59 56 5.25      

Unscaled Zero Point Vibrational Energy (zpe) 25395.8 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 23928.0 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=FULL/6-31G*
ABC
0.25809 0.12400 0.09391

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 -0.223 0.594 2.166
H2 -0.223 0.594 -2.166
H3 -1.697 0.112 -1.306
H4 -1.697 0.112 1.306
H5 -1.165 1.798 1.270
H6 -1.165 1.798 -1.270
C7 -0.817 0.761 -1.263
C8 -0.817 0.761 1.263
H9 0.910 1.092 0.000
C10 0.000 0.484 0.000
C11 0.440 -0.957 0.000
H12 -0.395 -1.693 0.000
O13 1.602 -1.337 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 H6 C7 C8 H9 C10 C11 H12 O13
H14.33203.80281.77331.77163.76083.48411.09342.49492.18032.74503.15443.4280
H24.33201.77333.80283.76081.77161.09343.48412.49492.18032.74503.15443.4280
H33.80281.77332.61243.12471.76851.09502.79253.07682.17382.72322.58073.8329
H41.77333.80282.61241.76853.12472.79251.09503.07682.17382.72322.58073.8329
H51.77163.76083.12471.76852.54042.75911.09342.53332.16733.43163.79374.3699
H63.76081.77161.76853.12472.54041.09342.75912.53332.16733.43163.79374.3699
C73.48411.09341.09502.79252.75911.09342.52612.16511.52952.47512.79233.4422
C81.09343.48412.79251.09501.09342.75912.52612.16511.52952.47512.79233.4422
H92.49492.49493.07683.07682.53332.53332.16512.16511.09492.10193.07572.5257
C102.18032.18032.17382.17382.16732.16731.52951.52951.09491.50602.21222.4252
C112.74502.74502.72322.72323.43163.43162.47512.47512.10191.50601.11331.2226
H123.15443.15442.58072.58073.79373.79372.79232.79233.07572.21221.11332.0283
O133.42803.42803.83293.83294.36994.36993.44223.44222.52572.42521.22262.0283

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 108.248 H1 C8 H5 108.214
H1 C8 C10 111.363 H2 C7 H3 108.248
H2 C7 H6 108.214 H2 C7 C10 111.363
H3 C7 H6 107.822 H3 C7 C10 110.751
H4 C8 H5 107.822 H4 C8 C10 110.751
H5 C8 C10 110.327 H6 C7 C10 110.327
C7 C10 C8 111.336 C7 C10 H9 110.068
C7 C10 C11 109.244 C8 C10 H9 110.068
C8 C10 C11 109.244 H9 C10 C11 106.765
C10 C11 H12 114.424 C10 C11 O13 125.124
H12 C11 O13 120.453
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability