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

using model chemistry: B3LYP/CEP-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYP/CEP-31G*
 hartrees
Energy at 0K-27.387384
Energy at 298.15K-27.395102
Nuclear repulsion energy66.718030
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 B3LYP/CEP-31G*
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 3138 3030 14.24      
2 A1 3120 3013 30.09      
3 A1 3027 2923 52.59      
4 A1 1727 1668 20.87      
5 A1 1498 1447 14.25      
6 A1 1439 1389 0.79      
7 A1 1407 1358 0.01      
8 A1 1068 1031 5.24      
9 A1 809 781 0.09      
10 A1 358 345 0.36      
11 A2 3072 2967 0.00      
12 A2 1472 1421 0.00      
13 A2 1010 975 0.00      
14 A2 690 667 0.00      
15 A2 167 161 0.00      
16 B1 3075 2969 82.88      
17 B1 1487 1436 21.73      
18 B1 1082 1045 0.81      
19 B1 909 877 88.29      
20 B1 401 387 7.99      
21 B1 204 197 0.56      
22 B2 3204 3094 26.37      
23 B2 3117 3011 34.90      
24 B2 3024 2920 27.09      
25 B2 1483 1432 3.97      
26 B2 1415 1366 8.69      
27 B2 1283 1239 6.29      
28 B2 962 929 0.04      
29 B2 948 915 0.18      
30 B2 413 399 1.20      

Unscaled Zero Point Vibrational Energy (zpe) 23502.9 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 22696.7 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 B3LYP/CEP-31G*
ABC
0.29547 0.27142 0.14944

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.138
C2 0.000 0.000 1.504
H3 0.000 0.935 2.077
H4 0.000 -0.935 2.077
C5 0.000 1.295 -0.671
C6 0.000 -1.295 -0.671
H7 0.000 2.185 -0.020
H8 0.888 1.346 -1.330
H9 -0.888 1.346 -1.330
H10 0.000 -2.185 -0.020
H11 -0.888 -1.346 -1.330
H12 0.888 -1.346 -1.330

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 H7 H8 H9 H10 H11 H12
C11.36542.15192.15191.52681.52682.19042.18072.18072.19042.18072.1807
C21.36541.09621.09622.53072.53072.66363.26023.26022.66363.26023.2602
H32.15191.09621.86912.77093.53822.44133.54423.54423.75854.19454.1945
H42.15191.09621.86913.53822.77093.75854.19454.19452.44133.54423.5442
C51.52682.53072.77093.53822.58991.10211.10691.10693.53992.86322.8632
C61.52682.53073.53822.77092.58993.53992.86322.86321.10211.10691.1069
H72.19042.66362.44133.75851.10213.53991.79061.79064.36933.86913.8691
H82.18073.26023.54424.19451.10692.86321.79061.77573.86913.22522.6923
H92.18073.26023.54424.19451.10692.86321.79061.77573.86912.69233.2252
H102.19042.66363.75852.44133.53991.10214.36933.86913.86911.79061.7906
H112.18073.26024.19453.54422.86321.10693.86913.22522.69231.79061.7757
H122.18073.26024.19453.54422.86321.10693.86912.69233.22521.79061.7757

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 121.515 C1 C2 H4 121.515
C1 C5 H7 111.838 C1 C5 H8 110.776
C1 C5 H9 110.776 C1 C6 H10 111.838
C1 C6 H11 110.776 C1 C6 H12 110.776
C2 C1 C5 121.993 C2 C1 C6 121.993
H3 C2 H4 116.970 C5 C1 C6 116.014
H7 C5 H8 108.303 H7 C5 H9 108.303
H8 C5 H9 106.657 H10 C6 H11 108.303
H10 C6 H12 108.303 H11 C6 H12 106.657
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.337      
2 C -0.706      
3 H 0.224      
4 H 0.224      
5 C -0.498      
6 C -0.498      
7 H 0.183      
8 H 0.138      
9 H 0.138      
10 H 0.183      
11 H 0.138      
12 H 0.138      


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 -0.619 0.619
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.822 0.000 0.000
y 0.000 -25.091 0.000
z 0.000 0.000 -25.689
Traceless
 xyz
x -2.432 0.000 0.000
y 0.000 1.664 0.000
z 0.000 0.000 0.768
Polar
3z2-r21.536
x2-y2-2.730
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.363 0.000 0.000
y 0.000 6.422 0.000
z 0.000 0.000 8.624


<r2> (average value of r2) Å2
<r2> 79.891
(<r2>)1/2 8.938