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

using model chemistry: BLYP/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 BLYP/6-31G**
 hartrees
Energy at 0K-232.357016
Energy at 298.15K-232.365323
Nuclear repulsion energy173.531181
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 BLYP/6-31G**
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' 3045 3021 26.56      
2 A' 3036 3013 59.61      
3 A' 2991 2968 8.53      
4 A' 2969 2946 18.07      
5 A' 2735 2714 131.24      
6 A' 1751 1738 160.67      
7 A' 1489 1477 10.27      
8 A' 1481 1470 6.24      
9 A' 1401 1390 0.37      
10 A' 1383 1373 2.79      
11 A' 1278 1269 1.93      
12 A' 1152 1143 2.20      
13 A' 1141 1132 6.16      
14 A' 880 873 22.93      
15 A' 820 814 21.83      
16 A' 525 521 4.10      
17 A' 348 345 6.05      
18 A' 323 320 0.21      
19 A' 225 223 0.70      
20 A" 3044 3020 20.81      
21 A" 3030 3007 2.03      
22 A" 2966 2943 24.80      
23 A" 1469 1458 0.86      
24 A" 1467 1456 0.89      
25 A" 1374 1364 0.68      
26 A" 1314 1304 2.92      
27 A" 1094 1086 0.53      
28 A" 952 945 0.01      
29 A" 930 923 0.66      
30 A" 911 904 0.93      
31 A" 320 317 0.36      
32 A" 211 209 0.08      
33 A" 64 63 3.84      

Unscaled Zero Point Vibrational Energy (zpe) 24058.0 cm-1
Scaled (by 0.9923) Zero Point Vibrational Energy (zpe) 23872.8 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 BLYP/6-31G**
ABC
0.25112 0.12117 0.09152

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.223 0.621 2.192
H2 -0.223 0.621 -2.192
H3 -1.708 0.112 -1.344
H4 -1.708 0.112 1.344
H5 -1.187 1.813 1.281
H6 -1.187 1.813 -1.281
C7 -0.826 0.773 -1.283
C8 -0.826 0.773 1.283
H9 0.914 1.104 0.000
C10 0.000 0.487 0.000
C11 0.453 -0.973 0.000
H12 -0.399 -1.712 0.000
O13 1.614 -1.355 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 H6 C7 C8 H9 C10 C11 H12 O13
H14.38343.86821.78341.78303.79583.52931.10112.51602.20712.79323.20613.4765
H24.38341.78343.86823.79581.78301.10113.52932.51602.20712.79323.20613.4765
H33.86821.78342.68803.17071.77961.10322.84823.10852.20512.76612.61683.8722
H41.78343.86822.68801.77963.17072.84821.10323.10852.20512.76612.61683.8722
H51.78303.79583.17071.77962.56182.79011.10152.56082.19263.47733.83264.4188
H63.79581.78301.77963.17072.56181.10152.79012.56082.19263.47733.83264.4188
C73.52931.10111.10322.84822.79011.10152.56502.18671.55182.51512.82853.4821
C81.10113.52932.84821.10321.10152.79012.56502.18671.55182.51512.82853.4821
H92.51602.51603.10853.10852.56082.56082.18672.18671.10272.12763.10742.5572
C102.20712.20712.20512.20512.19262.19261.55181.55181.10271.52882.23542.4496
C112.79322.79322.76612.76613.47733.47732.51512.51512.12761.52881.12791.2227
H123.20613.20612.61682.61683.83263.83262.82852.82853.10742.23541.12792.0445
O133.47653.47653.87223.87224.41884.41883.48213.48212.55722.44961.22272.0445

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 108.003 H1 C8 H5 108.090
H1 C8 C10 111.473 H2 C7 H3 108.003
H2 C7 H6 108.090 H2 C7 C10 111.473
H3 C7 H6 107.641 H3 C7 C10 111.190
H4 C8 H5 107.641 H4 C8 C10 111.190
H5 C8 C10 110.300 H6 C7 C10 110.300
C7 C10 C8 111.480 C7 C10 H9 109.772
C7 C10 C11 109.459 C8 C10 H9 109.772
C8 C10 C11 109.459 H9 C10 C11 106.783
C10 C11 H12 113.725 C10 C11 O13 125.457
H12 C11 O13 120.818
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.106      
2 H 0.106      
3 H 0.097      
4 H 0.097      
5 H 0.102      
6 H 0.102      
7 C -0.293      
8 C -0.293      
9 H 0.093      
10 C -0.074      
11 C 0.288      
12 H 0.036      
13 O -0.368      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.237 1.446 0.000 2.663
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.547 3.150 0.000
y 3.150 -32.907 0.000
z 0.000 0.000 -30.576
Traceless
 xyz
x -3.806 3.150 0.000
y 3.150 0.155 0.000
z 0.000 0.000 3.651
Polar
3z2-r27.301
x2-y2-2.641
xy3.150
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 137.339
(<r2>)1/2 11.719