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

using model chemistry: B3LYP/3-21G

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/3-21G
 hartrees
Energy at 0K-156.373242
Energy at 298.15K-156.381167
Nuclear repulsion energy119.202545
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/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3151 3041 7.58      
2 A1 3124 3014 15.64      
3 A1 3036 2929 31.07      
4 A1 1735 1674 10.23      
5 A1 1565 1510 13.14      
6 A1 1496 1443 0.52      
7 A1 1467 1416 2.13      
8 A1 1119 1080 5.29      
9 A1 798 770 0.02      
10 A1 378 365 0.35      
11 A2 3073 2966 0.00      
12 A2 1541 1487 0.00      
13 A2 1061 1024 0.00      
14 A2 718 693 0.00      
15 A2 178 171 0.00      
16 B1 3078 2970 44.88      
17 B1 1559 1505 20.23      
18 B1 1145 1105 4.16      
19 B1 943 910 53.56      
20 B1 430 415 8.86      
21 B1 209 202 0.82      
22 B2 3228 3115 18.81      
23 B2 3122 3013 22.12      
24 B2 3030 2924 14.42      
25 B2 1551 1497 5.15      
26 B2 1454 1403 11.61      
27 B2 1306 1261 7.63      
28 B2 1018 983 0.49      
29 B2 970 936 0.09      
30 B2 444 429 0.87      

Unscaled Zero Point Vibrational Energy (zpe) 23964.5 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 23123.3 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/3-21G
ABC
0.30209 0.27780 0.15300

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.129
C2 0.000 0.000 1.464
H3 0.000 0.924 2.034
H4 0.000 -0.924 2.034
C5 0.000 1.280 -0.684
C6 0.000 -1.280 -0.684
H7 0.000 2.163 -0.039
H8 0.884 1.322 -1.334
H9 -0.884 1.322 -1.334
H10 0.000 -2.163 -0.039
H11 -0.884 -1.322 -1.334
H12 0.884 -1.322 -1.334

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 H7 H8 H9 H10 H11 H12
C11.33462.11732.11731.51691.51692.17002.16142.16142.17002.16142.1614
C21.33461.08571.08572.50082.50082.63423.21863.21862.63423.21863.2186
H32.11731.08571.84752.74213.49992.41573.50563.50563.71884.14414.1441
H42.11731.08571.84753.49992.74213.71884.14414.14412.41573.50563.5056
C51.51692.50082.74213.49992.56041.09401.09841.09843.50362.82402.8240
C61.51692.50083.49992.74212.56043.50362.82402.82401.09401.09841.0984
H72.17002.63422.41573.71881.09403.50361.78011.78014.32693.82193.8219
H82.16143.21863.50564.14411.09842.82401.78011.76883.82193.18082.6436
H92.16143.21863.50564.14411.09842.82401.78011.76883.82192.64363.1808
H102.17002.63423.71882.41573.50361.09404.32693.82193.82191.78011.7801
H112.16143.21864.14413.50562.82401.09843.82193.18082.64361.78011.7688
H122.16143.21864.14413.50562.82401.09843.82192.64363.18081.78011.7688

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 121.700 C1 C2 H4 121.700
C1 C5 H7 111.403 C1 C5 H8 110.452
C1 C5 H9 110.452 C1 C6 H10 111.403
C1 C6 H11 110.452 C1 C6 H12 110.452
C2 C1 C5 122.440 C2 C1 C6 122.440
H3 C2 H4 116.599 C5 C1 C6 115.120
H7 C5 H8 108.574 H7 C5 H9 108.574
H8 C5 H9 107.263 H10 C6 H11 108.574
H10 C6 H12 108.574 H11 C6 H12 107.263
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.028     0.361
2 C -0.379     -0.621
3 H 0.173     0.208
4 H 0.173     0.208
5 C -0.588     -0.514
6 C -0.588     -0.514
7 H 0.196     0.144
8 H 0.198     0.146
9 H 0.198     0.146
10 H 0.196     0.144
11 H 0.198     0.146
12 H 0.198     0.146


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 -0.502 0.502
CHELPG        
AIM        
ESP 0.005 0.000 -0.490 0.490


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.104 0.000 0.000
y 0.000 -25.336 0.000
z 0.000 0.000 -25.678
Traceless
 xyz
x -2.598 0.000 0.000
y 0.000 1.556 0.000
z 0.000 0.000 1.042
Polar
3z2-r22.084
x2-y2-2.769
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.820 0.000 0.000
y 0.000 6.013 0.000
z 0.000 0.000 7.800


<r2> (average value of r2) Å2
<r2> 91.305
(<r2>)1/2 9.555