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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-43.326830
Energy at 298.15K-43.335266
Nuclear repulsion energy97.129119
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' 3083 3005 44.80      
2 A' 3077 2998 98.90      
3 A' 3032 2955 3.57      
4 A' 2986 2910 30.88      
5 A' 2887 2813 104.42      
6 A' 1670 1627 167.31      
7 A' 1530 1491 18.05      
8 A' 1524 1485 7.97      
9 A' 1439 1403 2.11      
10 A' 1406 1370 4.96      
11 A' 1330 1296 3.24      
12 A' 1194 1164 3.47      
13 A' 1186 1156 1.87      
14 A' 920 897 19.81      
15 A' 840 819 19.60      
16 A' 531 517 6.06      
17 A' 350 341 9.11      
18 A' 329 320 0.39      
19 A' 226 220 0.79      
20 A" 3081 3002 28.98      
21 A" 3065 2987 4.32      
22 A" 2982 2906 36.29      
23 A" 1513 1475 1.12      
24 A" 1511 1473 3.28      
25 A" 1420 1384 6.34      
26 A" 1346 1312 1.18      
27 A" 1129 1100 3.02      
28 A" 982 957 0.21      
29 A" 956 931 0.36      
30 A" 938 914 2.11      
31 A" 325 316 1.21      
32 A" 205 200 0.05      
33 A" 69 67 7.56      

Unscaled Zero Point Vibrational Energy (zpe) 24530.0 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 23904.5 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
0.24967 0.11972 0.09058

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 -0.239 0.581 2.193
H2 -0.239 0.581 -2.193
H3 -1.699 0.025 -1.341
H4 -1.699 0.025 1.341
H5 -1.238 1.738 1.286
H6 -1.238 1.738 -1.286
C7 -0.843 0.714 -1.287
C8 -0.843 0.714 1.287
H9 0.877 1.127 0.000
C10 0.000 0.466 0.000
C11 0.522 -0.971 0.000
H12 -0.260 -1.764 0.000
O13 1.732 -1.290 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 H6 C7 C8 H9 C10 C11 H12 O13
H14.38673.86461.77971.77773.80003.53501.09742.52052.20932.79233.21103.4921
H24.38671.77973.86463.80001.77771.09743.53502.52052.20932.79233.21103.4921
H33.86461.77972.68253.16991.77511.09972.84863.10592.20902.77892.65903.9113
H41.77973.86462.68251.77513.16992.84861.09973.10592.20902.77892.65903.9113
H51.77773.80003.16991.77512.57132.79711.09782.54862.19163.47643.85674.4316
H63.80001.77771.77513.16992.57131.09782.79712.54862.19163.47643.85674.4316
C73.53501.09741.09972.84862.79711.09782.57402.18741.55852.52112.85223.5073
C81.09743.53502.84861.09971.09782.79712.57402.18741.55852.52112.85223.5073
H92.52052.52053.10593.10592.54862.54862.18742.18741.09802.12733.10642.5640
C102.20932.20932.20902.20902.19162.19161.55851.55851.09801.52822.24492.4662
C112.79232.79232.77892.77893.47643.47642.52112.52112.12731.52821.11401.2514
H123.21103.21102.65902.65903.85673.85672.85222.85223.10642.24491.11402.0473
O133.49213.49213.91133.91134.43164.43163.50733.50732.56402.46621.25142.0473

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 108.194 H1 C8 H5 108.153
H1 C8 C10 111.398 H2 C7 H3 108.194
H2 C7 H6 108.153 H2 C7 C10 111.398
H3 C7 H6 107.754 H3 C7 C10 111.235
H4 C8 H5 107.754 H4 C8 C10 111.235
H5 C8 C10 109.978 H6 C7 C10 109.978
C7 C10 C8 111.346 C7 C10 H9 109.643
C7 C10 C11 109.525 C8 C10 H9 109.643
C8 C10 C11 109.525 H9 C10 C11 107.060
C10 C11 H12 115.455 C10 C11 O13 124.767
H12 C11 O13 119.778
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 0.166      
2 H 0.166      
3 H 0.147      
4 H 0.147      
5 H 0.159      
6 H 0.159      
7 C -0.513      
8 C -0.513      
9 H 0.148      
10 C 0.056      
11 C -0.049      
12 H 0.077      
13 O -0.149      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.951 1.525 0.000 3.321
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.171 4.161 0.000
y 4.161 -33.183 0.000
z 0.000 0.000 -31.140
Traceless
 xyz
x -6.009 4.161 0.000
y 4.161 1.472 0.000
z 0.000 0.000 4.537
Polar
3z2-r29.074
x2-y2-4.988
xy4.161
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.048 -0.644 0.000
y -0.644 7.200 0.000
z 0.000 0.000 6.735


<r2> (average value of r2) Å2
<r2> 115.468
(<r2>)1/2 10.746