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

using model chemistry: HF/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 HF/6-311G*
 hartrees
Energy at 0K-231.034910
Energy at 298.15K-231.043674
Nuclear repulsion energy176.504271
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/6-311G*
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' 3250 2939 87.65      
2 A' 3247 2937 76.73      
3 A' 3218 2910 3.10      
4 A' 3180 2876 28.95      
5 A' 3084 2789 104.26      
6 A' 2011 1819 265.76      
7 A' 1645 1488 16.40      
8 A' 1638 1481 4.80      
9 A' 1563 1414 1.24      
10 A' 1550 1401 9.16      
11 A' 1445 1306 3.58      
12 A' 1291 1168 0.31      
13 A' 1284 1161 12.29      
14 A' 995 900 12.35      
15 A' 901 815 17.92      
16 A' 583 527 9.31      
17 A' 383 346 10.18      
18 A' 355 321 0.12      
19 A' 256 231 1.01      
20 A" 3246 2935 22.17      
21 A" 3232 2923 13.53      
22 A" 3174 2871 35.94      
23 A" 1625 1470 2.04      
24 A" 1621 1466 0.70      
25 A" 1540 1393 2.64      
26 A" 1471 1330 0.82      
27 A" 1246 1127 0.51      
28 A" 1059 958 0.15      
29 A" 1044 944 0.80      
30 A" 1009 912 0.43      
31 A" 356 322 0.86      
32 A" 231 209 0.01      
33 A" 75 68 9.24      

Unscaled Zero Point Vibrational Energy (zpe) 26402.1 cm-1
Scaled (by 0.9044) Zero Point Vibrational Energy (zpe) 23878.1 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/6-311G*
ABC
0.25743 0.12568 0.09454

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.227 0.584 2.163
H2 -0.227 0.584 -2.163
H3 -1.699 0.132 -1.319
H4 -1.699 0.132 1.319
H5 -1.143 1.792 1.285
H6 -1.143 1.792 -1.285
C7 -0.814 0.759 -1.268
C8 -0.814 0.759 1.268
H9 0.898 1.085 0.000
C10 0.000 0.476 0.000
C11 0.453 -0.965 0.000
H12 -0.359 -1.707 0.000
O13 1.580 -1.322 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 H6 C7 C8 H9 C10 C11 H12 O13
H14.32693.80771.75581.75243.76703.48531.08472.48942.17802.74623.15383.4031
H24.32691.75583.80773.76701.75241.08473.48532.48942.17802.74623.15383.4031
H33.80771.75582.63833.13781.75101.08652.80533.06442.17862.75292.63103.8226
H41.75583.80772.63831.75103.13782.80531.08653.06442.17862.75292.63103.8226
H51.75243.76703.13781.75102.56982.77331.08432.51312.16543.43533.80974.3323
H63.76701.75241.75103.13782.56981.08432.77332.51312.16543.43533.80974.3323
C73.48531.08471.08652.80532.77331.08432.53542.15421.53262.48702.81053.4163
C81.08473.48532.80531.08651.08432.77332.53542.15421.53262.48702.81053.4163
H92.48942.48943.06443.06442.51312.51312.15422.15421.08422.09703.06172.5020
C102.17802.17802.17862.17862.16542.16541.53261.53261.08421.51082.21312.3944
C112.74622.74622.75292.75293.43533.43532.48702.48702.09701.51081.10051.1822
H123.15383.15382.63102.63103.80973.80972.81052.81053.06172.21311.10051.9768
O133.40313.40313.82263.82264.33234.33233.41633.41632.50202.39441.18221.9768

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 107.932 H1 C8 H5 107.785
H1 C8 C10 111.490 H2 C7 H3 107.932
H2 C7 H6 107.785 H2 C7 C10 111.490
H3 C7 H6 107.532 H3 C7 C10 111.429
H4 C8 H5 107.532 H4 C8 C10 111.429
H5 C8 C10 110.504 H6 C7 C10 110.504
C7 C10 C8 111.614 C7 C10 H9 109.624
C7 C10 C11 109.598 C8 C10 H9 109.624
C8 C10 C11 109.598 H9 C10 C11 106.656
C10 C11 H12 114.974 C10 C11 O13 125.075
H12 C11 O13 119.950
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.228 0.059   0.109
2 H 0.228 0.059   0.109
3 H 0.209 0.051   0.103
4 H 0.209 0.051   0.103
5 H 0.224 0.076   0.126
6 H 0.224 0.076   0.126
7 C -0.623 -0.289   -0.472
8 C -0.623 -0.289   -0.472
9 H 0.233 -0.054   -0.032
10 C -0.337 0.344   0.382
11 C 0.250 0.476   0.441
12 H 0.159 -0.027   -0.006
13 O -0.380 -0.531   -0.518


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.677 1.476 0.000 3.057
CHELPG        
AIM        
ESP -2.714 1.481 0.000 3.091


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.987 4.069 0.000
y 4.069 -33.232 0.000
z 0.000 0.000 -31.287
Traceless
 xyz
x -4.728 4.069 0.000
y 4.069 0.905 0.000
z 0.000 0.000 3.823
Polar
3z2-r27.646
x2-y2-3.755
xy4.069
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.034 -0.493 0.000
y -0.493 6.472 0.000
z 0.000 0.000 6.133


<r2> (average value of r2) Å2
<r2> 134.229
(<r2>)1/2 11.586