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All results from a given calculation for CH2C(CH3)CH3 (1-Propene, 2-methyl-)

using model chemistry: MP2/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/6-311G*
 hartrees
Energy at 0K-156.684852
Energy at 298.15K-156.692686
HF Energy-156.138053
Nuclear repulsion energy119.506897
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 MP2/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3176 3018 15.12      
2 A1 3171 3013 14.69      
3 A1 3065 2913 26.98      
4 A1 1724 1638 8.09      
5 A1 1538 1461 15.31      
6 A1 1469 1396 0.59      
7 A1 1442 1370 1.55      
8 A1 1099 1044 3.70      
9 A1 833 792 0.09      
10 A1 380 361 0.22      
11 A2 3133 2978 0.00      
12 A2 1507 1432 0.00      
13 A2 1034 983 0.00      
14 A2 706 671 0.00      
15 A2 159 151 0.00      
16 B1 3135 2979 42.74      
17 B1 1527 1451 23.00      
18 B1 1118 1062 0.06      
19 B1 856 813 52.01      
20 B1 420 399 7.57      
21 B1 200 190 0.61      
22 B2 3269 3107 17.47      
23 B2 3170 3012 19.56      
24 B2 3061 2909 21.59      
25 B2 1524 1448 6.48      
26 B2 1446 1374 15.18      
27 B2 1323 1258 2.14      
28 B2 1001 951 0.00      
29 B2 983 935 0.16      
30 B2 437 416 1.16      

Unscaled Zero Point Vibrational Energy (zpe) 23952.5 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 22762.0 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 MP2/6-311G*
ABC
0.30396 0.27941 0.15388

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.111
C2 0.000 0.000 1.456
H3 0.000 0.924 2.026
H4 0.000 -0.924 2.026
C5 0.000 1.289 -0.677
C6 0.000 -1.289 -0.677
H7 0.000 2.156 -0.014
H8 0.880 1.348 -1.326
H9 -0.880 1.348 -1.326
H10 0.000 -2.156 -0.014
H11 -0.880 -1.348 -1.326
H12 0.880 -1.348 -1.326

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 H7 H8 H9 H10 H11 H12
C11.34492.12642.12641.51121.51122.15922.15762.15762.15922.15762.1576
C21.34491.08601.08602.49262.49262.60943.21403.21402.60943.21403.2140
H32.12641.08601.84852.72793.49402.38343.49153.49153.69464.14404.1440
H42.12641.08601.84853.49402.72793.69464.14404.14402.38343.49153.4915
C51.51122.49262.72793.49402.57861.09071.09461.09463.50802.85442.8544
C61.51122.49263.49402.72792.57863.50802.85442.85441.09071.09461.0946
H72.15922.60942.38343.69461.09073.50801.77391.77394.31113.84263.8426
H82.15763.21403.49154.14401.09462.85441.77391.75923.84263.21842.6951
H92.15763.21403.49154.14401.09462.85441.77391.75923.84262.69513.2184
H102.15922.60943.69462.38343.50801.09074.31113.84263.84261.77391.7739
H112.15763.21404.14403.49152.85441.09463.84263.21842.69511.77391.7592
H122.15763.21404.14403.49152.85441.09463.84262.69513.21841.77391.7592

picture of 1-Propene, 2-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H3 121.670 C1 C2 H4 121.670
C1 C5 H7 111.138 C1 C5 H8 110.772
C1 C5 H9 110.772 C1 C6 H10 111.138
C1 C6 H11 110.772 C1 C6 H12 110.772
C2 C1 C5 121.444 C2 C1 C6 121.444
H3 C2 H4 116.659 C5 C1 C6 117.111
H7 C5 H8 108.537 H7 C5 H9 108.537
H8 C5 H9 106.949 H10 C6 H11 108.537
H10 C6 H12 108.537 H11 C6 H12 106.949
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability