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All results from a given calculation for C5H10 (2-Butene, 2-methyl-)

using model chemistry: B3PW91/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/cc-pVTZ
 hartrees
Energy at 0K-196.540944
Energy at 298.15K-196.550775
Nuclear repulsion energy174.946887
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/cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3136 3016 45.10      
2 A 3129 3009 24.73      
3 A 3115 2995 9.62      
4 A 3112 2993 9.55      
5 A 3022 2906 10.44      
6 A 3020 2904 70.95      
7 A 3013 2897 26.64      
8 A 1749 1682 1.79      
9 A 1491 1433 12.37      
10 A 1489 1431 1.90      
11 A 1473 1416 1.84      
12 A 1413 1359 2.00      
13 A 1410 1356 3.69      
14 A 1403 1349 7.37      
15 A 1365 1313 2.01      
16 A 1239 1192 4.54      
17 A 1132 1089 11.25      
18 A 1067 1026 6.53      
19 A 967 930 3.38      
20 A 956 919 1.20      
21 A 778 748 1.63      
22 A 525 505 2.13      
23 A 378 364 0.53      
24 A 296 285 0.25      
25 A 3065 2947 18.62      
26 A 3064 2946 30.37      
27 A 3060 2943 15.61      
28 A 1482 1425 18.53      
29 A 1474 1418 1.92      
30 A 1463 1407 0.76      
31 A 1097 1055 0.08      
32 A 1058 1017 1.31      
33 A 1011 973 2.76      
34 A 830 798 12.18      
35 A 455 438 3.21      
36 A 263 253 1.99      
37 A 185 178 1.13      
38 A 144 139 0.07      
39 A 124 120 0.62      

Unscaled Zero Point Vibrational Energy (zpe) 29727.5 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 28586.0 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/cc-pVTZ
ABC
0.27047 0.11811 0.08611

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.499 0.487 0.000
H2 -1.956 -0.501 0.000
H3 -1.869 1.029 0.876
H4 -1.869 1.029 -0.876
C5 0.267 -2.084 0.000
H6 0.648 -2.619 -0.876
H7 0.648 -2.619 0.876
H8 -0.817 -2.180 0.000
C9 0.734 -0.666 0.000
H10 1.815 -0.542 0.000
C11 0.000 0.449 0.000
C12 0.655 1.800 0.000
H13 1.743 1.722 0.000
H14 0.355 2.383 0.877
H15 0.355 2.383 -0.877

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 H8 C9 H10 C11 C12 H13 H14 H15
C11.08821.09481.09483.11933.87563.87562.75202.51253.46971.49932.52273.46922.79242.7924
H21.08821.76491.76492.72973.46903.46902.02852.69493.77112.17443.48004.31553.79743.7974
H31.09481.76491.75253.87614.76564.43173.48823.22704.09942.14402.78103.78082.60323.1384
H41.09481.76491.75253.87614.43174.76563.48823.22704.09942.14402.78103.78083.13842.6032
C53.11932.72973.87613.87611.09451.09451.08911.49352.18512.54763.90324.08254.55304.5530
H63.87563.46904.76564.43171.09451.75221.76292.14252.53853.25584.50434.56195.30775.0100
H73.87563.46904.43174.76561.09451.75221.76292.14252.53853.25584.50434.56195.01005.3077
H82.75202.02853.48823.48821.08911.76291.76292.16773.10052.75304.24304.66694.79124.7912
C92.51252.69493.22703.22701.49352.14252.14252.16771.08821.33472.46632.59223.19433.1943
H103.46973.77114.09944.09942.18512.53852.53853.10051.08822.06782.61252.26503.38413.3841
C111.49932.17442.14402.14402.54763.25583.25582.75301.33472.06781.50102.15842.15232.1523
C122.52273.48002.78102.78103.90324.50434.50434.24302.46632.61251.50101.09031.09511.0951
H133.46924.31553.78083.78084.08254.56194.56194.66692.59222.26502.15841.09031.76991.7699
H142.79243.79742.60323.13844.55305.30775.01004.79123.19433.38412.15231.09511.76991.7534
H152.79243.79743.13842.60324.55305.01005.30774.79123.19433.38412.15231.09511.76991.7534

picture of 2-Butene, 2-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C11 C9 124.794 C1 C11 C12 114.458
H2 C1 H3 107.898 H2 C1 H4 107.898
H2 C1 C11 113.405 H3 C1 H4 106.326
H3 C1 C11 110.509 H4 C1 C11 110.509
C5 C9 H10 114.737 C5 C9 C11 128.444
H6 C5 H7 106.345 H6 C5 H8 107.672
H6 C5 C9 110.814 H7 C5 H8 107.672
H7 C5 C9 110.814 H8 C5 C9 113.216
C9 C11 C12 120.748 H10 C9 C11 116.819
C11 C12 H13 111.828 C11 C12 H14 111.041
C11 C12 H15 111.041 H13 C12 H14 108.169
H13 C12 H15 108.169 H14 C12 H15 106.377
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.261 0.000    
2 H 0.090 0.000    
3 H 0.090 0.000    
4 H 0.090 0.000    
5 C -0.259 0.000    
6 H 0.094 0.000    
7 H 0.094 0.000    
8 H 0.087 0.000    
9 C -0.162 0.000    
10 H 0.098 0.000    
11 C 0.032 0.000    
12 C -0.253 0.000    
13 H 0.087 0.000    
14 H 0.086 0.000    
15 H 0.086 0.000    


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.201 0.052 0.000 0.208
CHELPG 0.000 0.000 0.000 0.000
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.367 -0.333 0.000
y -0.333 -32.109 0.000
z 0.000 0.000 -34.231
Traceless
 xyz
x 0.803 -0.333 0.000
y -0.333 1.190 0.000
z 0.000 0.000 -1.993
Polar
3z2-r2-3.986
x2-y2-0.258
xy-0.333
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 150.011
(<r2>)1/2 12.248