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

using model chemistry: HF/STO-3G

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/STO-3G
 hartrees
Energy at 0K-228.106629
Energy at 298.15K-228.115162
Nuclear repulsion energy174.090759
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/STO-3G
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' 3754 3065 1.24      
2 A' 3752 3064 2.63      
3 A' 3655 2985 0.84      
4 A' 3568 2913 1.25      
5 A' 3532 2884 26.41      
6 A' 2118 1730 29.47      
7 A' 1839 1502 2.31      
8 A' 1837 1500 3.61      
9 A' 1742 1422 0.23      
10 A' 1646 1344 7.67      
11 A' 1567 1279 22.42      
12 A' 1411 1152 1.95      
13 A' 1363 1113 6.05      
14 A' 1113 909 6.93      
15 A' 982 801 11.72      
16 A' 598 488 6.14      
17 A' 388 317 4.49      
18 A' 373 305 0.18      
19 A' 244 200 0.24      
20 A" 3753 3064 0.52      
21 A" 3751 3062 0.14      
22 A" 3568 2913 1.91      
23 A" 1833 1497 0.77      
24 A" 1830 1494 0.01      
25 A" 1731 1413 0.11      
26 A" 1617 1320 4.77      
27 A" 1351 1103 1.20      
28 A" 1160 947 0.48      
29 A" 1116 911 0.71      
30 A" 1051 858 0.50      
31 A" 362 295 0.50      
32 A" 228 186 0.00      
33 A" 82 67 3.75      

Unscaled Zero Point Vibrational Energy (zpe) 29456.7 cm-1
Scaled (by 0.8165) Zero Point Vibrational Energy (zpe) 24051.4 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/STO-3G
ABC
0.25406 0.12075 0.09159

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.300 0.569 2.167
H2 0.300 0.569 -2.167
H3 -1.012 1.385 -1.320
H4 -1.012 1.385 1.320
H5 0.613 2.061 1.284
H6 0.613 2.061 -1.284
C7 0.044 1.136 -1.276
C8 0.044 1.136 1.276
H9 1.417 0.059 0.000
C10 0.359 0.323 0.000
C11 -0.451 -0.994 0.000
H12 -1.546 -0.849 0.000
O13 0.044 -2.106 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 H6 C7 C8 H9 C10 C11 H12 O13
H14.33343.81421.76181.76103.77243.49871.08612.49052.18152.77533.18053.4521
H24.33341.76183.81423.77241.76101.08613.49872.49052.18152.77533.18053.4521
H33.81421.76182.64103.14361.76041.08622.81443.06662.18072.77842.65003.8791
H41.76183.81422.64101.76043.14362.81441.08623.06662.18072.77842.65003.8791
H51.76103.77243.14361.76042.56852.78121.08582.51052.17613.48033.84454.3971
H63.77241.76101.76043.14362.56851.08582.78122.51052.17613.48033.84454.3971
C73.49871.08611.08622.81442.78121.08582.55262.16191.54612.53192.84593.4841
C81.08613.49872.81441.08621.08582.78122.55262.16191.54612.53192.84593.4841
H92.49052.49053.06663.06662.51052.51052.16192.16191.08982.14443.09942.5639
C102.18152.18152.18072.18072.17612.17611.54611.54611.08981.54592.23722.4488
C112.77532.77532.77842.77843.48033.48032.53192.53192.14441.54591.10471.2170
H123.18053.18052.65002.65003.84453.84452.84592.84593.09942.23721.10472.0265
O133.45213.45213.87913.87914.39714.39713.48413.48412.56392.44881.21702.0265

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 108.400 H1 C8 H5 108.352
H1 C8 C10 110.737 H2 C7 H3 108.400
H2 C7 H6 108.352 H2 C7 C10 110.737
H3 C7 H6 108.287 H3 C7 C10 110.662
H4 C8 H5 108.287 H4 C8 C10 110.662
H5 C8 C10 110.322 H6 C7 C10 110.322
C7 C10 C8 111.276 C7 C10 H9 108.978
C7 C10 C11 109.943 C8 C10 H9 108.978
C8 C10 C11 109.943 H9 C10 C11 107.638
C10 C11 H12 114.100 C10 C11 O13 124.397
H12 C11 O13 121.503
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.063      
2 H 0.063      
3 H 0.059      
4 H 0.059      
5 H 0.063      
6 H 0.063      
7 C -0.180      
8 C -0.180      
9 H 0.064      
10 C -0.043      
11 C 0.139      
12 H 0.043      
13 O -0.213      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.480 1.768 0.000 1.832
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.008 0.824 0.000
y 0.824 -34.599 0.000
z 0.000 0.000 -29.173
Traceless
 xyz
x 2.878 0.824 0.000
y 0.824 -5.508 0.000
z 0.000 0.000 2.630
Polar
3z2-r25.261
x2-y25.591
xy0.824
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.149 -0.199 0.000
y -0.199 4.113 0.000
z 0.000 0.000 2.886


<r2> (average value of r2) Å2
<r2> 135.674
(<r2>)1/2 11.648