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

using model chemistry: B3LYP/CEP-121G

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-121G
 hartrees
Energy at 0K-27.367691
Energy at 298.15K-27.375550
Nuclear repulsion energy66.926515
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-121G
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 3098 3019 16.72      
2 A1 3085 3006 33.36      
3 A1 2974 2898 57.64      
4 A1 1690 1647 20.73      
5 A1 1521 1482 15.78      
6 A1 1457 1420 1.03      
7 A1 1435 1398 0.99      
8 A1 1085 1057 3.12      
9 A1 800 779 0.00      
10 A1 372 363 0.30      
11 A2 3031 2953 0.00      
12 A2 1496 1458 0.00      
13 A2 1030 1003 0.00      
14 A2 703 685 0.00      
15 A2 158 154 0.00      
16 B1 3036 2958 86.14      
17 B1 1512 1473 23.18      
18 B1 1116 1087 0.46      
19 B1 948 923 65.96      
20 B1 432 421 9.46      
21 B1 199 194 0.71      
22 B2 3194 3113 39.28      
23 B2 3082 3003 38.60      
24 B2 2968 2892 33.95      
25 B2 1507 1468 5.74      
26 B2 1429 1392 14.46      
27 B2 1302 1269 5.73      
28 B2 989 963 0.14      
29 B2 968 943 0.11      
30 B2 431 420 1.13      

Unscaled Zero Point Vibrational Energy (zpe) 23520.6 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 22920.8 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-121G
ABC
0.29727 0.27227 0.15008

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.141
C2 0.000 0.000 1.499
H3 0.000 0.927 2.070
H4 0.000 -0.927 2.070
C5 0.000 1.294 -0.670
C6 0.000 -1.294 -0.670
H7 0.000 2.178 -0.023
H8 0.884 1.346 -1.324
H9 -0.884 1.346 -1.324
H10 0.000 -2.178 -0.023
H11 -0.884 -1.346 -1.324
H12 0.884 -1.346 -1.324

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 H7 H8 H9 H10 H11 H12
C11.35712.14002.14001.52691.52692.18462.17772.17772.18462.17772.1777
C21.35711.08941.08942.52482.52482.65693.25003.25002.65693.25003.2500
H32.14001.08941.85472.76423.52702.43823.53273.53273.74504.18024.1802
H42.14001.08941.85473.52702.76423.74504.18024.18022.43823.53273.5327
C51.52692.52482.76423.52702.58731.09621.10111.10113.53192.85982.8598
C61.52692.52483.52702.76422.58733.53192.85982.85981.09621.10111.1011
H72.18462.65692.43823.74501.09623.53191.78011.78014.35693.85993.8599
H82.17773.25003.53274.18021.10112.85981.78011.76743.85993.22072.6924
H92.17773.25003.53274.18021.10112.85981.78011.76743.85992.69243.2207
H102.18462.65693.74502.43823.53191.09624.35693.85993.85991.78011.7801
H112.17773.25004.18023.53272.85981.10113.85993.22072.69241.78011.7674
H122.17773.25004.18023.53272.85981.10113.85992.69243.22071.78011.7674

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 121.650 C1 C2 H4 121.650
C1 C5 H7 111.728 C1 C5 H8 110.877
C1 C5 H9 110.877 C1 C6 H10 111.728
C1 C6 H11 110.877 C1 C6 H12 110.877
C2 C1 C5 122.090 C2 C1 C6 122.090
H3 C2 H4 116.700 C5 C1 C6 115.821
H7 C5 H8 108.213 H7 C5 H9 108.213
H8 C5 H9 106.747 H10 C6 H11 108.213
H10 C6 H12 108.213 H11 C6 H12 106.747
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.602      
2 C -0.546      
3 H 0.129      
4 H 0.129      
5 C -0.621      
6 C -0.621      
7 H 0.161      
8 H 0.151      
9 H 0.151      
10 H 0.161      
11 H 0.151      
12 H 0.151      


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 -0.628 0.628
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.538 0.000 0.000
y 0.000 -25.797 0.000
z 0.000 0.000 -26.501
Traceless
 xyz
x -2.389 0.000 0.000
y 0.000 1.722 0.000
z 0.000 0.000 0.667
Polar
3z2-r21.333
x2-y2-2.741
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.039 0.000 0.000
y 0.000 7.006 0.000
z 0.000 0.000 9.255


<r2> (average value of r2) Å2
<r2> 80.041
(<r2>)1/2 8.947