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

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/6-31G*
 hartrees
Energy at 0K-232.152848
Energy at 298.15K-232.161133
HF Energy-232.152848
Nuclear repulsion energy174.276593
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 PBEPBEultrafine/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3068 3018 20.10      
2 A' 3057 3006 47.95      
3 A' 3011 2961 7.57      
4 A' 2982 2933 17.41      
5 A' 2757 2711 131.69      
6 A' 1781 1752 169.66      
7 A' 1491 1467 14.99      
8 A' 1485 1460 9.69      
9 A' 1398 1375 1.74      
10 A' 1382 1359 2.91      
11 A' 1278 1257 0.98      
12 A' 1156 1137 1.24      
13 A' 1149 1131 6.76      
14 A' 904 889 21.69      
15 A' 830 816 25.49      
16 A' 531 522 4.82      
17 A' 340 335 5.67      
18 A' 322 316 0.26      
19 A' 223 219 0.77      
20 A" 3068 3017 17.16      
21 A" 3052 3002 1.98      
22 A" 2980 2931 22.18      
23 A" 1471 1446 1.58      
24 A" 1468 1444 1.29      
25 A" 1371 1348 3.24      
26 A" 1312 1291 1.59      
27 A" 1108 1089 0.32      
28 A" 969 953 0.23      
29 A" 929 914 0.70      
30 A" 911 896 1.65      
31 A" 317 312 0.45      
32 A" 207 204 0.10      
33 A" 63 62 3.60      

Unscaled Zero Point Vibrational Energy (zpe) 24183.5 cm-1
Scaled (by 0.9835) Zero Point Vibrational Energy (zpe) 23784.5 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 PBEPBEultrafine/6-31G*
ABC
0.25415 0.12238 0.09259

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.299 0.562 2.186
H2 0.299 0.562 -2.186
H3 -1.036 1.376 -1.321
H4 -1.036 1.376 1.321
H5 0.605 2.072 1.284
H6 0.605 2.072 -1.284
C7 0.039 1.125 -1.274
C8 0.039 1.125 1.274
H9 1.433 0.035 0.000
C10 0.367 0.319 0.000
C11 -0.433 -0.978 0.000
H12 -1.550 -0.816 0.000
O13 0.039 -2.099 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 H6 C7 C8 H9 C10 C11 H12 O13
H14.37213.83951.78651.78503.79633.51501.10282.51862.20062.77223.17733.4535
H24.37211.78653.83953.79631.78501.10283.51502.51862.20062.77223.17733.4535
H33.83951.78652.64193.15581.78221.10462.81983.10452.19722.76532.61023.8694
H41.78653.83952.64191.78223.15582.81981.10463.10452.19722.76532.61023.8694
H51.78503.79633.15581.78222.56752.78531.10302.54642.18553.46743.82464.4001
H63.79631.78501.78223.15582.56751.10302.78532.54642.18553.46743.82464.4001
C73.51501.10281.10462.81982.78531.10302.54782.18051.54252.50322.81313.4662
C81.10283.51502.81981.10461.10302.78532.54782.18051.54252.50322.81313.4662
H92.51862.51863.10453.10452.54642.54642.18052.18051.10372.12263.10152.5484
C102.20062.20062.19722.19722.18552.18551.54251.54251.10371.52342.22722.4400
C112.77222.77222.76532.76533.46743.46742.50322.50322.12261.52341.12851.2163
H123.17733.17732.61022.61023.82463.82462.81312.81313.10152.22721.12852.0417
O133.45353.45353.86943.86944.40014.40013.46623.46622.54842.44001.21632.0417

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 108.055 H1 C8 H5 108.046
H1 C8 C10 111.502 H2 C7 H3 108.055
H2 C7 H6 108.046 H2 C7 C10 111.502
H3 C7 H6 107.667 H3 C7 C10 111.130
H4 C8 H5 107.667 H4 C8 C10 111.130
H5 C8 C10 110.298 H6 C7 C10 110.298
C7 C10 C8 111.351 C7 C10 H9 109.869
C7 C10 C11 109.464 C8 C10 H9 109.869
C8 C10 C11 109.464 H9 C10 C11 106.710
C10 C11 H12 113.418 C10 C11 O13 125.531
H12 C11 O13 121.052
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.176      
2 H 0.176      
3 H 0.163      
4 H 0.163      
5 H 0.171      
6 H 0.171      
7 C -0.497      
8 C -0.497      
9 H 0.167      
10 C -0.165      
11 C 0.235      
12 H 0.094      
13 O -0.355      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.352 2.645 0.000 2.668
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.719 0.844 0.000
y 0.844 -37.287 -0.008
z 0.000 -0.008 -30.477
Traceless
 xyz
x 3.164 0.844 0.000
y 0.844 -6.689 -0.008
z 0.000 -0.008 3.526
Polar
3z2-r27.052
x2-y26.569
xy0.844
xz0.000
yz-0.008


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.454 -0.076 -0.003
y -0.076 7.846 0.002
z -0.003 0.002 6.291


<r2> (average value of r2) Å2
<r2> 135.989
(<r2>)1/2 11.661