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All results from a given calculation for C5H10 (1-Butene, 2-methyl-)

using model chemistry: B3PW91/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3PW91/3-21G*
 hartrees
Energy at 0K-195.402707
Energy at 298.15K-195.412855
Nuclear repulsion energy175.411384
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 B3PW91/3-21G*
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 3235 3104 17.00      
2 A 3154 3026 7.10      
3 A 3143 3015 31.21      
4 A 3136 3009 12.26      
5 A 3131 3004 35.80      
6 A 3098 2973 15.78      
7 A 3096 2970 11.47      
8 A 3059 2935 22.33      
9 A 3047 2923 23.81      
10 A 3042 2919 16.24      
11 A 1732 1662 12.48      
12 A 1565 1501 5.11      
13 A 1562 1498 10.64      
14 A 1552 1489 12.22      
15 A 1545 1482 17.99      
16 A 1530 1468 2.25      
17 A 1493 1432 0.37      
18 A 1455 1396 9.46      
19 A 1446 1387 10.37      
20 A 1365 1310 0.31      
21 A 1340 1286 2.09      
22 A 1292 1239 2.14      
23 A 1144 1098 0.07      
24 A 1123 1077 11.41      
25 A 1083 1039 5.95      
26 A 1037 994 1.75      
27 A 1019 978 0.71      
28 A 946 908 5.32      
29 A 943 905 53.48      
30 A 820 786 3.42      
31 A 776 744 1.81      
32 A 731 701 0.24      
33 A 542 520 9.41      
34 A 436 418 1.16      
35 A 392 376 1.02      
36 A 261 250 0.60      
37 A 225 216 0.53      
38 A 181 174 0.54      
39 A 65 62 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 30369.8 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 29136.7 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 B3PW91/3-21G*
ABC
0.23681 0.12515 0.09576

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.034 1.315 0.003
H2 0.385 1.882 -0.677
H3 2.062 1.381 -0.369
H4 0.986 1.803 0.987
C5 -1.892 0.081 -0.426
H6 -1.805 1.146 -0.669
H7 -2.904 -0.098 -0.043
H8 -1.760 -0.495 -1.348
C9 -0.833 -0.340 0.617
H10 -0.973 -1.400 0.866
H11 -0.981 0.241 1.539
C12 0.581 -0.125 0.110
C13 1.372 -1.146 -0.228
H14 1.040 -2.177 -0.138
H15 2.379 -0.989 -0.606

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 H8 C9 H10 H11 C12 C13 H14 H15
C11.09801.09491.09913.20442.92214.18383.59292.56903.48412.75221.51292.49483.49492.7359
H21.09801.77741.77082.91352.30973.89043.27112.84503.87183.07752.16443.21644.14683.4960
H31.09491.77741.78124.16253.88545.19134.36873.50854.29673.76822.16512.62303.70892.4021
H41.09911.77081.78123.63893.31034.44984.27462.83453.75562.57182.15573.21274.13623.5026
C53.20442.91354.16253.63891.09571.09661.09561.54612.17012.17232.53943.49343.71264.4072
H62.92212.30973.88543.31031.09571.77411.77742.19313.08712.52462.81353.94264.40714.6977
H74.18383.89045.19134.44981.09661.77411.78072.18772.50022.51283.48864.40674.45965.3872
H83.59293.27114.36874.27461.09561.77741.78072.17902.51823.08002.78323.38973.48354.2342
C92.56902.84503.50852.83451.54612.19312.18772.17901.09711.09991.51722.49492.72963.4971
H103.48413.87184.29673.75562.17013.08712.50022.51821.09711.77312.14732.60002.37983.6837
H112.75223.07753.76822.57182.17232.52462.51283.08001.09991.77312.14883.25363.57004.1718
C121.51292.16442.16512.15572.53942.81353.48862.78321.51722.14732.14881.33542.11772.1192
C132.49483.21642.62303.21273.49343.94264.40673.38972.49492.60003.25361.33541.08711.0869
H143.49494.14683.70894.13623.71264.40714.45963.48352.72962.37983.57002.11771.08711.8508
H152.73593.49602.40213.50264.40724.69775.38724.23423.49713.68374.17182.11921.08691.8508

picture of 1-Butene, 2-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C12 C9 115.954 C1 C12 C13 122.179
H2 C1 H3 108.295 H2 C1 H4 107.408
H2 C1 C12 110.989 H3 C1 H4 108.557
H3 C1 C12 111.236 H4 C1 C12 110.235
C5 C9 H10 109.197 C5 C9 H11 109.203
C5 C9 C12 111.987 H6 C5 H7 108.049
H6 C5 H8 108.411 H6 C5 C9 111.086
H7 C5 H8 108.638 H7 C5 C9 110.601
H8 C5 C9 109.979 C9 C12 C13 121.866
H10 C9 H11 107.613 H10 C9 C12 109.393
H11 C9 C12 109.346 C12 C13 H14 121.559
C12 C13 H15 121.724 H14 C13 H15 116.717
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.653      
2 H 0.223      
3 H 0.219      
4 H 0.220      
5 C -0.610      
6 H 0.210      
7 H 0.210      
8 H 0.219      
9 C -0.476      
10 H 0.220      
11 H 0.217      
12 C 0.032      
13 C -0.422      
14 H 0.196      
15 H 0.196      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.322 0.374 0.060 0.497
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.439 0.500 -1.015
y 0.500 -31.800 0.164
z -1.015 0.164 -34.320
Traceless
 xyz
x 0.621 0.500 -1.015
y 0.500 1.580 0.164
z -1.015 0.164 -2.201
Polar
3z2-r2-4.402
x2-y2-0.639
xy0.500
xz-1.015
yz0.164


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> 142.895
(<r2>)1/2 11.954