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

using model chemistry: HF/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 HF/6-31G**
 hartrees
Energy at 0K-230.998397
Energy at 298.15K-231.007128
Nuclear repulsion energy176.313871
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 HF/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' 3262 2944 53.06      
2 A' 3256 2939 75.10      
3 A' 3226 2912 1.15      
4 A' 3183 2873 24.35      
5 A' 3088 2787 94.31      
6 A' 2026 1828 235.70      
7 A' 1639 1479 13.30      
8 A' 1632 1473 4.22      
9 A' 1560 1408 1.06      
10 A' 1546 1395 7.26      
11 A' 1442 1301 3.01      
12 A' 1290 1164 0.05      
13 A' 1283 1158 12.66      
14 A' 997 900 13.20      
15 A' 903 815 17.28      
16 A' 582 525 9.50      
17 A' 381 344 10.26      
18 A' 354 320 0.16      
19 A' 253 228 0.98      
20 A" 3259 2941 17.41      
21 A" 3244 2928 11.13      
22 A" 3178 2868 30.71      
23 A" 1620 1462 1.94      
24 A" 1616 1458 0.26      
25 A" 1538 1388 2.16      
26 A" 1468 1325 0.92      
27 A" 1248 1126 0.38      
28 A" 1061 957 0.22      
29 A" 1044 942 0.92      
30 A" 1008 910 0.53      
31 A" 353 319 0.88      
32 A" 228 205 0.02      
33 A" 69 62 9.10      

Unscaled Zero Point Vibrational Energy (zpe) 26416.7 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 23843.8 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 HF/6-31G**
ABC
0.25719 0.12540 0.09439

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.226 0.584 2.163
H2 -0.226 0.584 -2.163
H3 -1.700 0.133 -1.317
H4 -1.700 0.133 1.317
H5 -1.141 1.795 1.282
H6 -1.141 1.795 -1.282
C7 -0.814 0.761 -1.268
C8 -0.814 0.761 1.268
H9 0.900 1.082 0.000
C10 0.000 0.476 0.000
C11 0.450 -0.966 0.000
H12 -0.364 -1.706 0.000
O13 1.583 -1.324 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 H6 C7 C8 H9 C10 C11 H12 O13
H14.32693.80631.75841.75533.76513.48631.08522.48932.17792.74623.15313.4051
H24.32691.75843.80633.76511.75531.08523.48632.48932.17792.74623.15313.4051
H33.80631.75842.63373.13501.75361.08702.80413.06492.17772.75122.62723.8263
H41.75843.80632.63371.75363.13502.80411.08703.06492.17772.75122.62723.8263
H51.75533.76513.13501.75362.56422.77161.08482.51352.16513.43563.80854.3353
H63.76511.75531.75363.13502.56421.08482.77162.51352.16513.43563.80854.3353
C73.48631.08521.08702.80412.77161.08482.53682.15611.53392.48832.81013.4209
C81.08523.48632.80411.08701.08482.77162.53682.15611.53392.48832.81013.4209
H92.48932.48933.06493.06492.51352.51352.15612.15611.08492.09723.06102.5010
C102.17792.17792.17772.17772.16512.16511.53391.53391.08491.51072.21172.3968
C112.74622.74622.75122.75123.43563.43562.48832.48832.09721.51071.10011.1882
H123.15313.15312.62722.62723.80853.80852.81012.81013.06102.21171.10011.9849
O133.40513.40513.82633.82634.33534.33533.42093.42092.50102.39681.18821.9849

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 108.087 H1 C8 H5 107.973
H1 C8 C10 111.361 H2 C7 H3 108.087
H2 C7 H6 107.973 H2 C7 C10 111.361
H3 C7 H6 107.688 H3 C7 C10 111.232
H4 C8 H5 107.688 H4 C8 C10 111.232
H5 C8 C10 110.357 H6 C7 C10 110.357
C7 C10 C8 111.561 C7 C10 H9 109.637
C7 C10 C11 109.619 C8 C10 H9 109.637
C8 C10 C11 109.619 H9 C10 C11 106.643
C10 C11 H12 114.892 C10 C11 O13 124.835
H12 C11 O13 120.274
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.132 0.058    
2 H 0.132 0.058    
3 H 0.116 0.050    
4 H 0.116 0.050    
5 H 0.129 0.073    
6 H 0.129 0.073    
7 C -0.343 -0.265    
8 C -0.343 -0.265    
9 H 0.155 -0.040    
10 C -0.229 0.283    
11 C 0.403 0.489    
12 H 0.087 -0.030    
13 O -0.484 -0.531    


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.719 1.484 0.000 3.097
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.753 4.053 0.000
y 4.053 -33.082 0.000
z 0.000 0.000 -30.943
Traceless
 xyz
x -4.741 4.053 0.000
y 4.053 0.766 0.000
z 0.000 0.000 3.974
Polar
3z2-r27.949
x2-y2-3.671
xy4.053
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.838 -0.511 0.000
y -0.511 6.310 0.000
z 0.000 0.000 5.853


<r2> (average value of r2) Å2
<r2> 134.234
(<r2>)1/2 11.586