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

using model chemistry: B3LYP/CEP-121G*

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/CEP-121G*
 hartrees
Energy at 0K-43.398194
Energy at 298.15K-43.406574
Nuclear repulsion energy97.765407
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/CEP-121G*
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' 3092 2997 42.21      
2 A' 3085 2991 88.70      
3 A' 3051 2958 3.69      
4 A' 3014 2922 25.33      
5 A' 2848 2761 125.95      
6 A' 1774 1720 210.23      
7 A' 1521 1475 15.55      
8 A' 1514 1467 7.02      
9 A' 1431 1387 0.98      
10 A' 1413 1370 3.87      
11 A' 1311 1271 2.01      
12 A' 1175 1139 0.12      
13 A' 1172 1136 9.60      
14 A' 908 880 17.98      
15 A' 834 809 19.27      
16 A' 533 517 5.45      
17 A' 349 339 7.70      
18 A' 325 315 0.13      
19 A' 230 223 0.83      
20 A" 3091 2996 27.66      
21 A" 3076 2982 3.68      
22 A" 3010 2918 31.72      
23 A" 1501 1455 1.57      
24 A" 1499 1453 1.24      
25 A" 1406 1363 2.36      
26 A" 1340 1299 1.49      
27 A" 1126 1092 1.56      
28 A" 972 942 0.15      
29 A" 948 919 0.22      
30 A" 926 897 1.04      
31 A" 324 314 0.63      
32 A" 208 202 0.04      
33 A" 67 65 5.95      

Unscaled Zero Point Vibrational Energy (zpe) 24535.9 cm-1
Scaled (by 0.9694) Zero Point Vibrational Energy (zpe) 23785.1 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 B3LYP/CEP-121G*
ABC
0.25179 0.12182 0.09193

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.235 0.575 2.187
H2 -0.235 0.575 -2.187
H3 -1.686 -0.000 -1.337
H4 -1.686 -0.000 1.337
H5 -1.253 1.718 1.286
H6 -1.253 1.718 -1.286
C7 -0.841 0.701 -1.281
C8 -0.841 0.701 1.281
H9 0.871 1.136 0.000
C10 0.000 0.469 0.000
C11 0.538 -0.960 0.000
H12 -0.250 -1.755 0.000
O13 1.717 -1.268 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 H6 C7 C8 H9 C10 C11 H12 O13
H14.37473.85431.77731.77583.79543.52321.09722.51482.20252.78203.19613.4633
H24.37471.77733.85433.79541.77581.09723.52322.51482.20252.78203.19613.4633
H33.85431.77732.67373.16521.77251.09922.83883.10142.20222.76662.63223.8701
H41.77733.85432.67371.77253.16522.83881.09923.10142.20222.76662.63223.8701
H51.77583.79543.16521.77252.57202.79191.09762.55032.18703.46873.83674.4035
H63.79541.77581.77253.16522.57201.09762.79192.55032.18703.46873.83674.4035
C73.52321.09721.09922.83882.79191.09762.56222.18241.54982.50992.83203.4729
C81.09723.52322.83881.09921.09762.79192.56222.18241.54982.50992.83203.4729
H92.51482.51483.10143.10142.55032.55032.18242.18241.09762.12283.10152.5488
C102.20252.20252.20222.20222.18702.18701.54981.54981.09761.52692.23822.4426
C112.78202.78202.76662.76663.46873.46872.50992.50992.12281.52691.11951.2191
H123.19613.19612.63222.63223.83673.83672.83202.83203.10152.23821.11952.0271
O133.46333.46333.87013.87014.40354.40353.47293.47292.54882.44261.21912.0271

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 108.036 H1 C8 H5 108.023
H1 C8 C10 111.483 H2 C7 H3 108.036
H2 C7 H6 108.023 H2 C7 C10 111.483
H3 C7 H6 107.578 H3 C7 C10 111.335
H4 C8 H5 107.578 H4 C8 C10 111.335
H5 C8 C10 110.234 H6 C7 C10 110.234
C7 C10 C8 111.504 C7 C10 H9 109.869
C7 C10 C11 109.326 C8 C10 H9 109.869
C8 C10 C11 109.326 H9 C10 C11 106.829
C10 C11 H12 114.628 C10 C11 O13 125.248
H12 C11 O13 120.123
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.186      
2 H 0.186      
3 H 0.162      
4 H 0.162      
5 H 0.177      
6 H 0.177      
7 C -0.585      
8 C -0.585      
9 H 0.170      
10 C 0.084      
11 C 0.035      
12 H 0.082      
13 O -0.250      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.577 1.392 0.000 2.929
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.076 3.579 0.000
y 3.579 -32.863 0.000
z 0.000 0.000 -31.138
Traceless
 xyz
x -5.076 3.579 0.000
y 3.579 1.244 0.000
z 0.000 0.000 3.832
Polar
3z2-r27.664
x2-y2-4.213
xy3.579
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.036 -0.584 0.000
y -0.584 7.397 0.000
z 0.000 0.000 6.963


<r2> (average value of r2) Å2
<r2> 113.966
(<r2>)1/2 10.675