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

using model chemistry: B3LYP/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 B3LYP/6-31G
 hartrees
Energy at 0K-232.391034
Energy at 298.15K-232.399514
Nuclear repulsion energy174.065639
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
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' 3131 3012 28.22      
2 A' 3122 3004 62.76      
3 A' 3074 2957 5.95      
4 A' 3044 2929 21.16      
5 A' 2917 2807 102.14      
6 A' 1733 1667 142.64      
7 A' 1553 1494 18.25      
8 A' 1548 1489 8.34      
9 A' 1468 1412 1.67      
10 A' 1435 1381 3.65      
11 A' 1352 1301 1.92      
12 A' 1209 1163 4.54      
13 A' 1209 1163 1.20      
14 A' 931 896 24.94      
15 A' 859 826 20.71      
16 A' 547 526 6.07      
17 A' 361 347 8.14      
18 A' 340 328 0.47      
19 A' 229 221 0.69      
20 A" 3129 3010 19.40      
21 A" 3115 2996 3.61      
22 A" 3041 2926 25.54      
23 A" 1537 1479 1.67      
24 A" 1534 1475 2.52      
25 A" 1448 1393 5.18      
26 A" 1373 1321 1.40      
27 A" 1143 1100 1.44      
28 A" 999 961 0.01      
29 A" 979 942 0.88      
30 A" 958 921 1.76      
31 A" 336 323 0.84      
32 A" 213 205 0.07      
33 A" 61 59 6.16      

Unscaled Zero Point Vibrational Energy (zpe) 24964.7 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 24016.0 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 B3LYP/6-31G
ABC
0.25371 0.12174 0.09210

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.228 0.613 2.182
H2 -0.228 0.613 -2.182
H3 -1.709 0.125 -1.330
H4 -1.709 0.125 1.330
H5 -1.169 1.811 1.272
H6 -1.169 1.811 -1.272
C7 -0.824 0.772 -1.276
C8 -0.824 0.772 1.276
H9 0.909 1.094 0.000
C10 0.000 0.480 0.000
C11 0.442 -0.967 0.000
H12 -0.389 -1.704 0.000
O13 1.616 -1.353 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 H6 C7 C8 H9 C10 C11 H12 O13
H14.36323.84231.77601.77423.77493.51221.09532.50672.19752.77583.18643.4674
H24.36321.77603.84233.77491.77421.09533.51222.50672.19752.77583.18643.4674
H33.84231.77602.66083.14811.77201.09752.82763.09192.19442.75412.61803.8734
H41.77603.84232.66081.77203.14812.82761.09753.09192.19442.75412.61803.8734
H51.77423.77493.14811.77202.54442.77381.09552.53932.18093.45433.81884.4025
H63.77491.77421.77203.14812.54441.09552.77382.53932.18093.45433.81884.4025
C73.51221.09531.09752.82762.77381.09552.55222.17561.54652.50062.81883.4772
C81.09533.51222.82761.09751.09552.77382.55222.17561.54652.50062.81883.4772
H92.50672.50673.09193.09192.53932.53932.17562.17561.09672.11373.08452.5468
C102.19752.19752.19442.19442.18092.18091.54651.54651.09671.51322.21852.4432
C112.77582.77582.75412.75413.45433.45432.50062.50062.11371.51321.11041.2358
H123.18643.18642.61802.61803.81883.81882.81882.81883.08452.21851.11042.0356
O133.46743.46743.87343.87344.40254.40253.47723.47722.54682.44321.23582.0356

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 108.176 H1 C8 H5 108.157
H1 C8 C10 111.431 H2 C7 H3 108.176
H2 C7 H6 108.157 H2 C7 C10 111.431
H3 C7 H6 107.806 H3 C7 C10 111.045
H4 C8 H5 107.806 H4 C8 C10 111.045
H5 C8 C10 110.100 H6 C7 C10 110.100
C7 C10 C8 111.204 C7 C10 H9 109.617
C7 C10 C11 109.614 C8 C10 H9 109.617
C8 C10 C11 109.614 H9 C10 C11 107.083
C10 C11 H12 114.596 C10 C11 O13 125.132
H12 C11 O13 120.272
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.151      
2 H 0.151      
3 H 0.139      
4 H 0.139      
5 H 0.148      
6 H 0.148      
7 C -0.412      
8 C -0.412      
9 H 0.154      
10 C -0.163      
11 C 0.239      
12 H 0.101      
13 O -0.384      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.660 1.585 0.000 3.096
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.626 3.888 0.000
y 3.888 -33.160 0.000
z 0.000 0.000 -30.619
Traceless
 xyz
x -4.736 3.888 0.000
y 3.888 0.462 0.000
z 0.000 0.000 4.274
Polar
3z2-r28.548
x2-y2-3.466
xy3.888
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.151 -0.676 0.000
y -0.676 6.548 0.000
z 0.000 0.000 5.912


<r2> (average value of r2) Å2
<r2> 136.808
(<r2>)1/2 11.697