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

using model chemistry: B3LYP/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/6-31G(2df,p)
 hartrees
Energy at 0K-232.477286
Energy at 298.15K-232.485721
Nuclear repulsion energy175.226626
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 B3LYP/6-31G(2df,p)
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' 3113 3004 23.87      
2 A' 3104 2995 50.88      
3 A' 3061 2954 6.37      
4 A' 3033 2927 15.71      
5 A' 2828 2729 108.89      
6 A' 1838 1774 177.24      
7 A' 1511 1458 11.63      
8 A' 1504 1451 6.17      
9 A' 1432 1382 1.21      
10 A' 1413 1364 3.29      
11 A' 1314 1268 1.59      
12 A' 1184 1142 2.70      
13 A' 1177 1136 7.33      
14 A' 916 884 17.88      
15 A' 844 814 20.74      
16 A' 543 524 5.17      
17 A' 354 341 6.71      
18 A' 329 318 0.19      
19 A' 229 221 0.75      
20 A" 3112 3003 15.68      
21 A" 3098 2989 2.98      
22 A" 3031 2925 21.77      
23 A" 1491 1439 1.24      
24 A" 1488 1436 0.59      
25 A" 1399 1350 1.51      
26 A" 1345 1298 2.11      
27 A" 1138 1098 0.42      
28 A" 987 952 0.02      
29 A" 958 925 0.55      
30 A" 933 900 0.94      
31 A" 328 316 0.58      
32 A" 211 204 0.05      
33 A" 71 68 4.72      

Unscaled Zero Point Vibrational Energy (zpe) 24656.7 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 23793.7 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 B3LYP/6-31G(2df,p)
ABC
0.25555 0.12374 0.09337

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.224 0.610 2.175
H2 -0.224 0.610 -2.175
H3 -1.693 0.096 -1.328
H4 -1.693 0.096 1.328
H5 -1.189 1.790 1.272
H6 -1.189 1.790 -1.272
C7 -0.822 0.759 -1.271
C8 -0.822 0.759 1.271
H9 0.903 1.105 0.000
C10 0.000 0.485 0.000
C11 0.457 -0.960 0.000
H12 -0.385 -1.695 0.000
O13 1.602 -1.333 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 H6 C7 C8 H9 C10 C11 H12 O13
H14.35003.83371.77211.77183.76893.50091.09402.49882.19002.76783.17363.4407
H24.35001.77213.83373.76891.77181.09403.50092.49882.19002.76783.17363.4407
H33.83371.77212.65683.14381.76801.09622.82073.08562.18692.73962.58543.8291
H41.77213.83372.65681.76803.14382.82071.09623.08562.18692.73962.58543.8291
H51.77183.76893.14381.76802.54372.76851.09432.54212.17573.44843.79604.3770
H63.76891.77181.76803.14382.54371.09432.76852.54212.17573.44843.79604.3770
C73.50091.09401.09622.82072.76851.09432.54242.17021.53832.49172.79833.4447
C81.09403.50092.82071.09621.09432.76852.54242.17021.53832.49172.79833.4447
H92.49882.49883.08563.08562.54212.54212.17022.17021.09492.11263.08222.5362
C102.19002.19002.18692.18692.17572.17571.53831.53831.09491.51612.21432.4231
C112.76782.76782.73962.73963.44843.44842.49172.49172.11261.51611.11831.2033
H123.17363.17362.58542.58543.79603.79602.79832.79833.08222.21431.11832.0195
O133.44073.44073.82913.82914.37704.37703.44473.44472.53622.42311.20332.0195

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 108.011 H1 C8 H5 108.131
H1 C8 C10 111.488 H2 C7 H3 108.011
H2 C7 H6 108.131 H2 C7 C10 111.488
H3 C7 H6 107.628 H3 C7 C10 111.109
H4 C8 H5 107.628 H4 C8 C10 111.109
H5 C8 C10 110.332 H6 C7 C10 110.332
C7 C10 C8 111.453 C7 C10 H9 109.863
C7 C10 C11 109.323 C8 C10 H9 109.863
C8 C10 C11 109.323 H9 C10 C11 106.906
C10 C11 H12 113.536 C10 C11 O13 125.614
H12 C11 O13 120.850
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.130      
2 H 0.130      
3 H 0.121      
4 H 0.121      
5 H 0.125      
6 H 0.125      
7 C -0.398      
8 C -0.398      
9 H 0.097      
10 C -0.041      
11 C 0.171      
12 H 0.065      
13 O -0.247      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.284 1.425 0.000 2.692
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.483 3.306 0.000
y 3.306 -32.622 0.000
z 0.000 0.000 -30.508
Traceless
 xyz
x -3.918 3.306 0.000
y 3.306 0.374 0.000
z 0.000 0.000 3.544
Polar
3z2-r27.088
x2-y2-2.861
xy3.306
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.265 -0.631 0.000
y -0.631 6.970 0.000
z 0.000 0.000 6.473


<r2> (average value of r2) Å2
<r2> 134.993
(<r2>)1/2 11.619