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

using model chemistry: B3PW91/6-31G(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 B3PW91/6-31G(2df,p)
 hartrees
Energy at 0K-157.182700
Energy at 298.15K-157.190566
Nuclear repulsion energy119.751270
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 B3PW91/6-31G(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 3150 3029 7.21      
2 A1 3135 3014 18.80      
3 A1 3029 2912 34.14      
4 A1 1737 1670 16.67      
5 A1 1495 1437 11.36      
6 A1 1439 1384 0.47      
7 A1 1402 1348 0.20      
8 A1 1081 1039 4.47      
9 A1 826 794 0.20      
10 A1 372 358 0.34      
11 A2 3082 2963 0.00      
12 A2 1462 1406 0.00      
13 A2 1017 978 0.00      
14 A2 705 677 0.00      
15 A2 172 165 0.00      
16 B1 3084 2965 39.58      
17 B1 1482 1425 14.67      
18 B1 1100 1058 0.62      
19 B1 921 886 38.75      
20 B1 440 423 5.41      
21 B1 212 203 0.53      
22 B2 3235 3110 16.28      
23 B2 3133 3012 20.98      
24 B2 3024 2907 18.98      
25 B2 1476 1419 3.81      
26 B2 1402 1348 8.45      
27 B2 1298 1248 3.42      
28 B2 985 947 0.25      
29 B2 957 920 0.06      
30 B2 431 415 1.63      

Unscaled Zero Point Vibrational Energy (zpe) 23640.4 cm-1
Scaled (by 0.9614) Zero Point Vibrational Energy (zpe) 22727.9 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 B3PW91/6-31G(2df,p)
ABC
0.30598 0.28047 0.15469

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G(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 1.455
H3 0.000 0.924 2.026
H4 0.000 -0.924 2.026
C5 0.000 1.272 -0.677
C6 0.000 -1.272 -0.677
H7 0.000 2.157 -0.035
H8 0.878 1.324 -1.333
H9 -0.878 1.324 -1.333
H10 0.000 -2.157 -0.035
H11 -0.878 -1.324 -1.333
H12 0.878 -1.324 -1.333

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 H7 H8 H9 H10 H11 H12
C11.33242.11532.11531.50241.50242.16232.15492.15492.16232.15492.1549
C21.33241.08621.08622.48252.48252.62123.20903.20902.62123.20903.2090
H32.11531.08621.84892.72443.48222.40063.49413.49413.70644.13584.1358
H42.11531.08621.84893.48222.72443.70644.13584.13582.40063.49413.4941
C51.50242.48252.72443.48222.54401.09291.09761.09763.48812.81802.8180
C61.50242.48253.48222.72442.54403.48812.81802.81801.09291.09761.0976
H72.16232.62122.40063.70641.09293.48811.77461.77464.31303.81713.8171
H82.15493.20903.49414.13581.09762.81801.77461.75683.81713.17782.6480
H92.15493.20903.49414.13581.09762.81801.77461.75683.81712.64803.1778
H102.16232.62123.70642.40063.48811.09294.31303.81713.81711.77461.7746
H112.15493.20904.13583.49412.81801.09763.81713.17782.64801.77461.7568
H122.15493.20904.13583.49412.81801.09763.81712.64803.17781.77461.7568

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 121.669 C1 C2 H4 121.669
C1 C5 H7 111.882 C1 C5 H8 110.992
C1 C5 H9 110.992 C1 C6 H10 111.882
C1 C6 H11 110.992 C1 C6 H12 110.992
C2 C1 C5 122.152 C2 C1 C6 122.152
H3 C2 H4 116.663 C5 C1 C6 115.696
H7 C5 H8 108.220 H7 C5 H9 108.220
H8 C5 H9 106.317 H10 C6 H11 108.220
H10 C6 H12 108.220 H11 C6 H12 106.317
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.352      
2 C -0.442      
3 H 0.124      
4 H 0.124      
5 C -0.514      
6 C -0.514      
7 H 0.145      
8 H 0.145      
9 H 0.145      
10 H 0.145      
11 H 0.145      
12 H 0.145      


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 -0.534 0.534
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.365 0.000 0.000
y 0.000 -25.193 0.000
z 0.000 0.000 -25.611
Traceless
 xyz
x -1.963 0.000 0.000
y 0.000 1.295 0.000
z 0.000 0.000 0.668
Polar
3z2-r21.336
x2-y2-2.172
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.624 0.000 0.000
y 0.000 6.758 0.000
z 0.000 0.000 8.385


<r2> (average value of r2) Å2
<r2> 90.402
(<r2>)1/2 9.508