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

using model chemistry: PBEPBE/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/6-311G*
 hartrees
Energy at 0K-232.208009
Energy at 298.15K-232.216327
Nuclear repulsion energy174.627381
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 PBEPBE/6-311G*
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' 3047 3015 27.39      
2 A' 3038 3006 61.96      
3 A' 2996 2965 6.93      
4 A' 2967 2936 20.18      
5 A' 2730 2702 146.04      
6 A' 1767 1749 195.59      
7 A' 1481 1466 20.10      
8 A' 1473 1457 11.46      
9 A' 1387 1373 2.26      
10 A' 1371 1356 4.14      
11 A' 1271 1258 0.72      
12 A' 1149 1137 0.94      
13 A' 1145 1133 6.85      
14 A' 899 890 20.47      
15 A' 825 817 27.25      
16 A' 532 527 4.79      
17 A' 342 339 5.98      
18 A' 323 320 0.24      
19 A' 227 225 0.83      
20 A" 3046 3014 20.96      
21 A" 3032 3000 2.45      
22 A" 2964 2933 26.76      
23 A" 1458 1443 2.21      
24 A" 1455 1440 1.72      
25 A" 1359 1345 6.10      
26 A" 1306 1292 1.03      
27 A" 1104 1092 0.62      
28 A" 965 955 0.28      
29 A" 925 916 0.44      
30 A" 907 898 1.66      
31 A" 320 317 0.46      
32 A" 206 204 0.09      
33 A" 65 64 4.03      

Unscaled Zero Point Vibrational Energy (zpe) 24040.7 cm-1
Scaled (by 0.9896) Zero Point Vibrational Energy (zpe) 23790.7 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 PBEPBE/6-311G*
ABC
0.25477 0.12289 0.09289

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.314 0.568 2.183
H2 0.314 0.568 -2.183
H3 -1.039 1.352 -1.328
H4 -1.039 1.352 1.328
H5 0.583 2.077 1.277
H6 0.583 2.077 -1.277
C7 0.038 1.120 -1.271
C8 0.038 1.120 1.271
H9 1.434 0.036 0.000
C10 0.369 0.320 0.000
C11 -0.428 -0.973 0.000
H12 -1.546 -0.817 0.000
O13 0.038 -2.093 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 H6 C7 C8 H9 C10 C11 H12 O13
H14.36533.84361.78201.78013.78353.50871.10072.51052.19742.77303.18473.4529
H24.36531.78203.84363.78351.78011.10073.50872.51052.19742.77303.18473.4529
H33.84361.78202.65673.15291.77701.10292.82343.10082.19372.74692.59353.8462
H41.78203.84362.65671.77703.15292.82341.10293.10082.19372.74692.59353.8462
H51.78013.78353.15291.77702.55332.77571.10122.55362.18203.45713.81234.3948
H63.78351.78011.77703.15292.55331.10122.77572.55362.18203.45713.81234.3948
C73.50871.10071.10292.82342.77571.10122.54262.17771.53812.49272.80633.4554
C81.10073.50872.82341.10291.10122.77572.54262.17771.53812.49272.80633.4554
H92.51052.51053.10083.10082.55362.55362.17772.17771.10262.11773.09982.5461
C102.19742.19742.19372.19372.18202.18201.53811.53811.10261.51892.22702.4358
C112.77302.77302.74692.74693.45713.45712.49272.49272.11771.51891.12921.2127
H123.18473.18472.59352.59353.81233.81232.80632.80633.09982.22701.12922.0338
O133.45293.45293.84623.84624.39484.39483.45543.45542.54612.43581.21272.0338

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 107.934 H1 C8 H5 107.893
H1 C8 C10 111.690 H2 C7 H3 107.934
H2 C7 H6 107.893 H2 C7 C10 111.690
H3 C7 H6 107.455 H3 C7 C10 111.259
H4 C8 H5 107.455 H4 C8 C10 111.259
H5 C8 C10 110.440 H6 C7 C10 110.440
C7 C10 C8 111.490 C7 C10 H9 110.015
C7 C10 C11 109.254 C8 C10 H9 110.015
C8 C10 C11 109.254 H9 C10 C11 106.687
C10 C11 H12 113.678 C10 C11 O13 125.811
H12 C11 O13 120.511
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.233      
2 H 0.233      
3 H 0.217      
4 H 0.217      
5 H 0.228      
6 H 0.228      
7 C -0.639      
8 C -0.639      
9 H 0.224      
10 C -0.318      
11 C 0.131      
12 H 0.134      
13 O -0.246      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.366 2.620 0.000 2.645
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.320 0.931 0.000
y 0.931 -38.046 0.000
z 0.000 0.000 -31.239
Traceless
 xyz
x 3.322 0.931 0.000
y 0.931 -6.766 0.000
z 0.000 0.000 3.445
Polar
3z2-r26.889
x2-y26.725
xy0.931
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.019 -0.101 0.000
y -0.101 8.294 0.000
z 0.000 0.000 6.895


<r2> (average value of r2) Å2
<r2> 136.073
(<r2>)1/2 11.665