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

using model chemistry: HF/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-230.915110
Energy at 298.15K-230.923859
Nuclear repulsion energy175.186156
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/LANL2DZ
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' 3293 2964 95.22      
2 A' 3290 2961 89.77      
3 A' 3261 2934 3.09      
4 A' 3203 2883 82.77      
5 A' 3193 2874 26.61      
6 A' 1886 1697 221.00      
7 A' 1657 1491 24.24      
8 A' 1652 1487 6.14      
9 A' 1578 1420 3.08      
10 A' 1542 1388 10.87      
11 A' 1471 1324 5.40      
12 A' 1316 1184 2.34      
13 A' 1305 1174 3.88      
14 A' 1013 912 13.98      
15 A' 910 819 18.48      
16 A' 578 520 10.55      
17 A' 381 343 13.02      
18 A' 359 323 0.63      
19 A' 249 224 1.06      
20 A" 3288 2959 23.20      
21 A" 3275 2947 13.98      
22 A" 3194 2874 47.77      
23 A" 1642 1478 3.48      
24 A" 1638 1474 2.11      
25 A" 1559 1403 7.26      
26 A" 1482 1334 0.17      
27 A" 1251 1125 3.29      
28 A" 1069 962 0.09      
29 A" 1062 956 0.58      
30 A" 1031 928 1.59      
31 A" 358 322 2.28      
32 A" 221 199 0.02      
33 A" 79 71 13.50      

Unscaled Zero Point Vibrational Energy (zpe) 26642.0 cm-1
Scaled (by 0.8999) Zero Point Vibrational Energy (zpe) 23975.1 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/LANL2DZ
ABC
0.25529 0.12341 0.09309

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/LANL2DZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.239 0.585 2.169
H2 -0.239 0.585 -2.169
H3 -1.709 0.137 -1.316
H4 -1.709 0.137 1.316
H5 -1.147 1.797 1.286
H6 -1.147 1.797 -1.286
C7 -0.823 0.763 -1.274
C8 -0.823 0.763 1.274
H9 0.889 1.095 0.000
C10 0.000 0.479 0.000
C11 0.445 -0.964 0.000
H12 -0.358 -1.702 0.000
O13 1.607 -1.335 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 H6 C7 C8 H9 C10 C11 H12 O13
H14.33893.80951.75801.75373.77333.49711.08402.49792.18512.75193.15413.4352
H24.33891.75803.80953.77331.75371.08403.49712.49792.18512.75193.15413.4352
H33.80951.75802.63253.13761.75281.08602.80833.06622.18412.75432.63403.8599
H41.75803.80952.63251.75283.13762.80831.08603.06622.18412.75432.63403.8599
H51.75373.77333.13761.75282.57272.78011.08372.50882.16973.43733.81044.3651
H63.77331.75371.75283.13762.57271.08372.78012.50882.16973.43733.81044.3651
C73.49711.08401.08602.80832.78011.08372.54782.15961.54282.49282.81323.4543
C81.08403.49712.80831.08601.08372.78012.54782.15961.54282.49282.81323.4543
H92.49792.49793.06623.06622.50882.50882.15962.15961.08192.10693.06282.5346
C102.18512.18512.18412.18412.16972.16971.54281.54281.08191.51042.21012.4241
C112.75192.75192.75432.75433.43733.43732.49282.49282.10691.51041.09071.2200
H123.15413.15412.63402.63403.81043.81042.81322.81323.06282.21011.09071.9996
O133.43523.43523.85993.85994.36514.36513.45433.45432.53462.42411.22001.9996

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 108.218 H1 C8 H5 107.999
H1 C8 C10 111.376 H2 C7 H3 108.218
H2 C7 H6 107.999 H2 C7 C10 111.376
H3 C7 H6 107.772 H3 C7 C10 111.176
H4 C8 H5 107.772 H4 C8 C10 111.176
H5 C8 C10 110.167 H6 C7 C10 110.167
C7 C10 C8 111.319 C7 C10 H9 109.474
C7 C10 C11 109.458 C8 C10 H9 109.474
C8 C10 C11 109.458 H9 C10 C11 107.579
C10 C11 H12 115.404 C10 C11 O13 124.857
H12 C11 O13 119.738
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.193      
2 H 0.193      
3 H 0.165      
4 H 0.165      
5 H 0.191      
6 H 0.191      
7 C -0.557      
8 C -0.557      
9 H 0.203      
10 C -0.111      
11 C 0.123      
12 H 0.141      
13 O -0.341      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.319 1.732 0.000 3.744
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.466 5.121 0.000
y 5.121 -33.635 0.000
z 0.000 0.000 -31.315
Traceless
 xyz
x -5.991 5.121 0.000
y 5.121 1.256 0.000
z 0.000 0.000 4.735
Polar
3z2-r29.470
x2-y2-4.831
xy5.121
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.835 -0.687 0.000
y -0.687 5.966 0.000
z 0.000 0.000 5.665


<r2> (average value of r2) Å2
<r2> 136.165
(<r2>)1/2 11.669