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

using model chemistry: HF/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/6-311+G(3df,2p)
 hartrees
Energy at 0K-231.068923
Energy at 298.15K-231.077671
Nuclear repulsion energy176.736972
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 HF/6-311+G(3df,2p)
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' 3227 2932 59.43      
2 A' 3223 2928 67.70      
3 A' 3192 2900 1.52      
4 A' 3156 2868 23.75      
5 A' 3048 2769 81.68      
6 A' 1998 1815 279.67      
7 A' 1628 1479 14.48      
8 A' 1621 1473 4.54      
9 A' 1549 1407 0.57      
10 A' 1534 1394 7.81      
11 A' 1438 1307 3.83      
12 A' 1283 1166 0.20      
13 A' 1280 1163 11.98      
14 A' 987 897 13.44      
15 A' 898 816 16.39      
16 A' 581 528 8.63      
17 A' 380 345 10.01      
18 A' 353 321 0.13      
19 A' 251 228 1.02      
20 A" 3223 2928 16.94      
21 A" 3209 2915 12.18      
22 A" 3151 2863 27.93      
23 A" 1609 1462 1.81      
24 A" 1605 1458 0.63      
25 A" 1525 1385 2.35      
26 A" 1462 1329 0.98      
27 A" 1243 1129 1.07      
28 A" 1057 961 0.05      
29 A" 1039 944 0.56      
30 A" 1001 910 0.60      
31 A" 354 321 1.32      
32 A" 223 203 0.00      
33 A" 75 68 10.19      

Unscaled Zero Point Vibrational Energy (zpe) 26200.2 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 23805.5 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 HF/6-311+G(3df,2p)
ABC
0.25807 0.12606 0.09483

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.295 0.553 2.160
H2 0.295 0.553 -2.160
H3 -1.017 1.360 -1.316
H4 -1.017 1.360 1.316
H5 0.597 2.038 1.278
H6 0.597 2.038 -1.278
C7 0.038 1.110 -1.267
C8 0.038 1.110 1.267
H9 1.409 0.039 0.000
C10 0.361 0.312 0.000
C11 -0.429 -0.973 0.000
H12 -1.521 -0.844 0.000
O13 0.038 -2.057 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 H6 C7 C8 H9 C10 C11 H12 O13
H14.31963.80121.75601.75323.75723.48081.08362.48432.17422.74183.14873.3979
H24.31961.75603.80123.75721.75321.08363.48082.48432.17422.74183.14873.3979
H33.80121.75602.63113.12941.75131.08542.80053.05982.17422.74222.61593.8109
H41.75603.80122.63111.75133.12942.80051.08543.05982.17422.74222.61593.8109
H51.75323.75723.12941.75132.55642.76561.08312.50822.16053.42843.79864.3266
H63.75721.75321.75133.12942.55641.08312.76562.50822.16053.42843.79864.3266
C73.48081.08361.08542.80052.76561.08312.53302.15221.53142.48262.80293.4116
C81.08363.48082.80051.08541.08312.76562.53302.15221.53142.48262.80293.4116
H92.48432.48433.05983.05982.50822.50822.15222.15221.08302.09793.06032.5044
C102.17422.17422.17422.17422.16052.16051.53141.53141.08301.50892.20932.3917
C112.74182.74182.74222.74223.42843.42842.48262.48262.09791.50891.10001.1807
H123.14873.14872.61592.61593.79863.79862.80292.80293.06032.20931.10001.9759
O133.39793.39793.81093.81094.32664.32663.41163.41162.50442.39171.18071.9759

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 108.112 H1 C8 H5 108.029
H1 C8 C10 111.344 H2 C7 H3 108.112
H2 C7 H6 108.029 H2 C7 C10 111.344
H3 C7 H6 107.720 H3 C7 C10 111.232
H4 C8 H5 107.720 H4 C8 C10 111.232
H5 C8 C10 110.267 H6 C7 C10 110.267
C7 C10 C8 111.590 C7 C10 H9 109.620
C7 C10 C11 109.485 C8 C10 H9 109.620
C8 C10 C11 109.485 H9 C10 C11 106.928
C10 C11 H12 114.840 C10 C11 O13 125.118
H12 C11 O13 120.041
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.137      
2 H 0.137      
3 H 0.144      
4 H 0.144      
5 H 0.131      
6 H 0.131      
7 C -0.416      
8 C -0.416      
9 H 0.104      
10 C -0.250      
11 C 0.818      
12 H 0.117      
13 O -0.781      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.662 3.158 0.000 3.227
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.693 1.369 0.000
y 1.369 -39.611 0.000
z 0.000 0.000 -31.100
Traceless
 xyz
x 4.663 1.369 0.000
y 1.369 -8.715 0.000
z 0.000 0.000 4.052
Polar
3z2-r28.104
x2-y28.918
xy1.369
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.781 -0.163 0.000
y -0.163 8.157 0.000
z 0.000 0.000 7.030


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000