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

using model chemistry: mPW1PW91/6-31G(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 mPW1PW91/6-31G(2df,p)
 hartrees
Energy at 0K-157.200105
Energy at 298.15K-157.207994
Nuclear repulsion energy119.936952
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 mPW1PW91/6-31G(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 3168 3025 6.61      
2 A1 3154 3011 18.22      
3 A1 3047 2909 32.78      
4 A1 1752 1672 17.09      
5 A1 1503 1435 11.72      
6 A1 1447 1381 0.45      
7 A1 1409 1345 0.22      
8 A1 1087 1037 4.55      
9 A1 833 795 0.20      
10 A1 373 356 0.35      
11 A2 3102 2961 0.00      
12 A2 1470 1404 0.00      
13 A2 1023 976 0.00      
14 A2 710 678 0.00      
15 A2 173 165 0.00      
16 B1 3104 2963 37.68      
17 B1 1490 1422 15.12      
18 B1 1107 1057 0.62      
19 B1 930 888 39.28      
20 B1 442 422 5.51      
21 B1 214 204 0.54      
22 B2 3254 3107 15.34      
23 B2 3152 3009 20.09      
24 B2 3042 2904 18.40      
25 B2 1483 1416 3.90      
26 B2 1411 1347 9.35      
27 B2 1307 1248 3.02      
28 B2 991 946 0.19      
29 B2 962 919 0.09      
30 B2 433 413 1.63      

Unscaled Zero Point Vibrational Energy (zpe) 23784.6 cm-1
Scaled (by 0.9547) Zero Point Vibrational Energy (zpe) 22707.1 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 mPW1PW91/6-31G(2df,p)
ABC
0.30687 0.28142 0.15518

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.123
C2 0.000 0.000 1.453
H3 0.000 0.924 2.022
H4 0.000 -0.924 2.022
C5 0.000 1.270 -0.676
C6 0.000 -1.270 -0.676
H7 0.000 2.153 -0.035
H8 0.877 1.321 -1.331
H9 -0.877 1.321 -1.331
H10 0.000 -2.153 -0.035
H11 -0.877 -1.321 -1.331
H12 0.877 -1.321 -1.331

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 H7 H8 H9 H10 H11 H12
C11.33032.11182.11181.50021.50022.15882.15112.15112.15882.15112.1511
C21.33031.08471.08472.47892.47892.61703.20373.20372.61703.20373.2037
H32.11181.08471.84712.71993.47692.39603.48823.48823.70064.12884.1288
H42.11181.08471.84713.47692.71993.70064.12884.12882.39603.48823.4882
C51.50022.47892.71993.47692.53981.09131.09601.09603.48252.81262.8126
C61.50022.47893.47692.71992.53983.48252.81262.81261.09131.09601.0960
H72.15882.61702.39603.70061.09133.48251.77261.77264.30603.81013.8101
H82.15113.20373.48824.12881.09602.81261.77261.75483.81013.17142.6417
H92.15113.20373.48824.12881.09602.81261.77261.75483.81012.64173.1714
H102.15882.61703.70062.39603.48251.09134.30603.81013.81011.77261.7726
H112.15113.20374.12883.48822.81261.09603.81013.17142.64171.77261.7548
H122.15113.20374.12883.48822.81261.09603.81012.64173.17141.77261.7548

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 121.627 C1 C2 H4 121.627
C1 C5 H7 111.853 C1 C5 H8 110.942
C1 C5 H9 110.942 C1 C6 H10 111.853
C1 C6 H11 110.942 C1 C6 H12 110.942
C2 C1 C5 122.166 C2 C1 C6 122.166
H3 C2 H4 116.746 C5 C1 C6 115.669
H7 C5 H8 108.267 H7 C5 H9 108.267
H8 C5 H9 106.361 H10 C6 H11 108.267
H10 C6 H12 108.267 H11 C6 H12 106.361
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.335      
2 C -0.445      
3 H 0.128      
4 H 0.128      
5 C -0.517      
6 C -0.517      
7 H 0.148      
8 H 0.148      
9 H 0.148      
10 H 0.148      
11 H 0.148      
12 H 0.148      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.532 0.532
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.361 0.000 0.000
y 0.000 -25.158 0.000
z 0.000 0.000 -25.565
Traceless
 xyz
x -2.000 0.000 0.000
y 0.000 1.305 0.000
z 0.000 0.000 0.695
Polar
3z2-r21.390
x2-y2-2.203
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.601 0.000 0.000
y 0.000 6.697 0.000
z 0.000 0.000 8.334


<r2> (average value of r2) Å2
<r2> 90.145
(<r2>)1/2 9.494