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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-232.286920
Energy at 298.15K-232.295269
Nuclear repulsion energy172.566289
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' 3051 3027 29.91      
2 A' 3043 3019 70.56      
3 A' 2992 2969 8.02      
4 A' 2969 2946 22.57      
5 A' 2799 2778 124.45      
6 A' 1654 1642 133.57      
7 A' 1516 1505 14.35      
8 A' 1510 1499 7.94      
9 A' 1426 1415 0.71      
10 A' 1394 1383 2.56      
11 A' 1309 1299 2.39      
12 A' 1171 1163 2.24      
13 A' 1165 1156 3.08      
14 A' 889 882 29.10      
15 A' 830 824 19.90      
16 A' 528 524 4.46      
17 A' 352 349 6.91      
18 A' 331 329 0.46      
19 A' 224 222 0.64      
20 A" 3049 3026 23.61      
21 A" 3035 3012 2.72      
22 A" 2966 2943 28.12      
23 A" 1500 1488 0.79      
24 A" 1497 1486 2.59      
25 A" 1408 1397 2.58      
26 A" 1333 1323 2.17      
27 A" 1098 1089 1.41      
28 A" 967 960 0.06      
29 A" 948 941 0.84      
30 A" 921 914 1.38      
31 A" 326 324 0.58      
32 A" 210 208 0.08      
33 A" 59 59 4.70      

Unscaled Zero Point Vibrational Energy (zpe) 24233.2 cm-1
Scaled (by 0.9924) Zero Point Vibrational Energy (zpe) 24049.0 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
0.24956 0.11952 0.09044

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 -0.228 0.626 2.198
H2 -0.228 0.626 -2.198
H3 -1.717 0.122 -1.346
H4 -1.717 0.122 1.346
H5 -1.185 1.824 1.279
H6 -1.185 1.824 -1.279
C7 -0.831 0.779 -1.287
C8 -0.831 0.779 1.287
H9 0.914 1.105 0.000
C10 0.000 0.485 0.000
C11 0.446 -0.975 0.000
H12 -0.398 -1.713 0.000
O13 1.630 -1.368 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 H6 C7 C8 H9 C10 C11 H12 O13
H14.39563.87701.78801.78703.79973.54001.10272.52282.21412.80123.21413.5014
H24.39561.78803.87703.79971.78701.10273.54002.52282.21412.80123.21413.5014
H33.87701.78802.69233.17371.78461.10502.85513.11492.21212.77352.63023.9035
H41.78803.87702.69231.78463.17372.85511.10503.11492.21212.77352.63023.9035
H51.78703.79973.17371.78462.55812.79321.10312.56082.19793.48213.84224.4437
H63.79971.78701.78463.17372.55811.10312.79322.56082.19793.48213.84224.4437
C73.54001.10271.10502.85512.79321.10312.57432.19271.55992.52222.83793.5104
C81.10273.54002.85511.10501.10312.79322.57432.19271.55992.52222.83793.5104
H92.52282.52283.11493.11492.56082.56082.19272.19271.10432.13173.10852.5744
C102.21412.21412.21212.21212.19792.19791.55991.55991.10431.52662.23412.4682
C112.80122.80122.77352.77353.48213.48212.52222.52222.13171.52661.12131.2482
H123.21413.21412.63022.63023.84223.84222.83792.83793.10852.23411.12132.0577
O133.50143.50143.90353.90354.44374.44373.51043.51042.57442.46821.24822.0577

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 108.173 H1 C8 H5 108.217
H1 C8 C10 111.358 H2 C7 H3 108.173
H2 C7 H6 108.217 H2 C7 C10 111.358
H3 C7 H6 107.848 H3 C7 C10 111.065
H4 C8 H5 107.848 H4 C8 C10 111.065
H5 C8 C10 110.060 H6 C7 C10 110.060
C7 C10 C8 111.205 C7 C10 H9 109.594
C7 C10 C11 109.602 C8 C10 H9 109.594
C8 C10 C11 109.602 H9 C10 C11 107.156
C10 C11 H12 114.208 C10 C11 O13 125.333
H12 C11 O13 120.459
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 0.136      
2 H 0.136      
3 H 0.125      
4 H 0.125      
5 H 0.133      
6 H 0.133      
7 C -0.375      
8 C -0.375      
9 H 0.129      
10 C -0.108      
11 C 0.214      
12 H 0.079      
13 O -0.351      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.511 1.573 0.000 2.963
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.431 3.625 0.000
y 3.625 -33.283 0.000
z 0.000 0.000 -30.678
Traceless
 xyz
x -4.451 3.625 0.000
y 3.625 0.272 0.000
z 0.000 0.000 4.179
Polar
3z2-r28.357
x2-y2-3.148
xy3.625
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> 138.864
(<r2>)1/2 11.784