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

using model chemistry: MP2=FULL/6-31G(2df,p)

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=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-156.806768
Energy at 298.15K-156.814713
HF Energy-156.131697
Nuclear repulsion energy120.144881
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=FULL/6-31G(2df,p)
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 3218 3025 4.45      
2 A1 3212 3019 12.73      
3 A1 3102 2915 18.05      
4 A1 1739 1635 7.61      
5 A1 1539 1446 11.12      
6 A1 1474 1385 0.09      
7 A1 1434 1348 0.52      
8 A1 1101 1035 4.91      
9 A1 842 792 0.13      
10 A1 376 354 0.25      
11 A2 3176 2985 0.00      
12 A2 1515 1424 0.00      
13 A2 1045 982 0.00      
14 A2 723 680 0.00      
15 A2 185 174 0.00      
16 B1 3178 2987 24.53      
17 B1 1533 1441 15.17      
18 B1 1117 1050 0.29      
19 B1 931 875 37.39      
20 B1 435 409 5.10      
21 B1 221 208 0.57      
22 B2 3314 3114 9.27      
23 B2 3210 3017 12.51      
24 B2 3099 2912 14.34      
25 B2 1526 1434 3.88      
26 B2 1438 1352 9.91      
27 B2 1327 1247 2.46      
28 B2 1010 950 0.01      
29 B2 983 924 0.20      
30 B2 431 405 1.40      

Unscaled Zero Point Vibrational Energy (zpe) 24216.0 cm-1
Scaled (by 0.9399) Zero Point Vibrational Energy (zpe) 22760.6 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=FULL/6-31G(2df,p)
ABC
0.30652 0.28338 0.15566

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G(2df,p)

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 1.446
H3 0.000 0.921 2.013
H4 0.000 -0.921 2.013
C5 0.000 1.281 -0.673
C6 0.000 -1.281 -0.673
H7 0.000 2.143 -0.010
H8 0.877 1.338 -1.319
H9 -0.877 1.338 -1.319
H10 0.000 -2.143 -0.010
H11 -0.877 -1.338 -1.319
H12 0.877 -1.338 -1.319

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 H7 H8 H9 H10 H11 H12
C11.33562.11342.11341.50171.50172.14592.14532.14532.14592.14532.1453
C21.33561.08121.08122.47642.47642.59083.19463.19462.59083.19463.1946
H32.11341.08121.84162.70993.47302.36353.47043.47043.67124.11974.1197
H42.11341.08121.84163.47302.70993.67124.11974.11972.36353.47043.4704
C51.50172.47642.70993.47302.56211.08681.09041.09043.48712.83642.8364
C61.50172.47643.47302.70992.56213.48712.83642.83641.08681.09041.0904
H72.14592.59082.36353.67121.08683.48711.76871.76874.28503.82033.8203
H82.14533.19463.47044.11971.09042.83641.76871.75323.82033.19912.6759
H92.14533.19463.47044.11971.09042.83641.76871.75323.82032.67593.1991
H102.14592.59083.67122.36353.48711.08684.28503.82033.82031.76871.7687
H112.14533.19464.11973.47042.83641.09043.82033.19912.67591.76871.7532
H122.14533.19464.11973.47042.83641.09043.82032.67593.19911.76871.7532

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 121.605 C1 C2 H4 121.605
C1 C5 H7 110.980 C1 C5 H8 110.713
C1 C5 H9 110.713 C1 C6 H10 110.980
C1 C6 H11 110.713 C1 C6 H12 110.713
C2 C1 C5 121.454 C2 C1 C6 121.454
H3 C2 H4 116.789 C5 C1 C6 117.092
H7 C5 H8 108.654 H7 C5 H9 108.654
H8 C5 H9 107.008 H10 C6 H11 108.654
H10 C6 H12 108.654 H11 C6 H12 107.008
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability