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

using model chemistry: B2PLYP/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP/cc-pVTZ
 hartrees
Energy at 0K-232.342851
Energy at 298.15K-232.351314
HF Energy-232.042715
Nuclear repulsion energy175.832530
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 B2PLYP/cc-pVTZ
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' 3129 3002 24.89      
2 A' 3122 2995 50.41      
3 A' 3085 2960 3.42      
4 A' 3049 2925 17.00      
5 A' 2873 2756 105.38      
6 A' 1789 1716 175.75      
7 A' 1525 1463 15.19      
8 A' 1517 1456 6.86      
9 A' 1434 1376 1.00      
10 A' 1418 1361 3.31      
11 A' 1326 1272 0.82      
12 A' 1193 1145 5.00      
13 A' 1192 1144 5.11      
14 A' 929 891 17.71      
15 A' 852 817 20.06      
16 A' 547 524 5.29      
17 A' 352 337 7.10      
18 A' 331 318 0.15      
19 A' 231 221 0.85      
20 A" 3128 3001 14.38      
21 A" 3115 2988 4.42      
22 A" 3047 2923 21.74      
23 A" 1505 1444 1.59      
24 A" 1501 1440 1.01      
25 A" 1408 1351 3.18      
26 A" 1355 1300 1.21      
27 A" 1145 1098 1.20      
28 A" 994 954 0.18      
29 A" 963 924 0.24      
30 A" 938 900 1.11      
31 A" 331 317 0.73      
32 A" 207 199 0.02      
33 A" 64 62 5.84      

Unscaled Zero Point Vibrational Energy (zpe) 24796.1 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 23789.4 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 B2PLYP/cc-pVTZ
ABC
0.25806 0.12448 0.09408

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.307 0.563 2.163
H2 0.307 0.563 -2.163
H3 -1.028 1.345 -1.311
H4 -1.028 1.345 1.311
H5 0.583 2.057 1.266
H6 0.583 2.057 -1.266
C7 0.038 1.114 -1.263
C8 0.038 1.114 1.263
H9 1.421 0.036 0.000
C10 0.368 0.316 0.000
C11 -0.429 -0.965 0.000
H12 -1.530 -0.815 0.000
O13 0.038 -2.078 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 H4 H5 H6 C7 C8 H9 C10 C11 H12 O13
H14.32653.80311.76561.76453.75033.48091.08892.48992.17822.74863.15513.4243
H24.32651.76563.80313.75031.76451.08893.48092.48992.17822.74863.15513.4243
H33.80311.76562.62263.12071.76091.09112.79583.07072.17402.72232.57683.8171
H41.76563.80312.62261.76093.12072.79581.09113.07072.17402.72232.57683.8171
H51.76453.75033.12071.76092.53112.75341.08902.52732.16313.42843.78374.3582
H63.75031.76451.76093.12072.53111.08902.75342.52732.16313.42843.78374.3582
C73.48091.08891.09112.79582.75341.08902.52662.16131.53032.47672.78883.4326
C81.08893.48092.79581.09111.08902.75342.52662.16131.53032.47672.78883.4326
H92.48992.48993.07073.07072.52732.52732.16132.16131.08982.10413.07232.5268
C102.17822.17822.17402.17402.16312.16311.53031.53031.08981.50832.20992.4163
C112.74862.74862.72232.72233.42843.42842.47672.47672.10411.50831.11111.2073
H123.15513.15512.57682.57683.78373.78372.78882.78883.07232.20991.11112.0131
O133.42433.42433.81713.81714.35824.35823.43263.43262.52682.41631.20732.0131

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 108.225
H1 C8 C10 111.414 H2 C7 H3 108.176
H2 C7 H6 108.225 H2 C7 C10 111.414
H3 C7 H6 107.753 H3 C7 C10 110.949
H4 C8 H5 107.753 H4 C8 C10 110.949
H5 C8 C10 110.199 H6 C7 C10 110.199
C7 C10 C8 111.277 C7 C10 H9 110.019
C7 C10 C11 109.181 C8 C10 H9 110.019
C8 C10 C11 109.181 H9 C10 C11 107.062
C10 C11 H12 114.205 C10 C11 O13 125.322
H12 C11 O13 120.473
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.113      
2 H 0.113      
3 H 0.094      
4 H 0.094      
5 H 0.105      
6 H 0.105      
7 C -0.311      
8 C -0.311      
9 H 0.110      
10 C -0.044      
11 C 0.173      
12 H 0.053      
13 O -0.295      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.039 -0.123 0.000
y -0.123 8.400 0.000
z 0.000 0.000 7.130


<r2> (average value of r2) Å2
<r2> 134.635
(<r2>)1/2 11.603