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

using model chemistry: B1B95/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B1B95/3-21G
 hartrees
Energy at 0K-195.343831
Energy at 298.15K-195.353999
Nuclear repulsion energy175.965465
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 B1B95/3-21G
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 3247 3107 17.09      
2 A 3165 3028 7.09      
3 A 3156 3020 29.81      
4 A 3148 3012 6.49      
5 A 3145 3009 41.11      
6 A 3111 2976 13.78      
7 A 3108 2974 13.86      
8 A 3072 2939 20.89      
9 A 3058 2926 22.70      
10 A 3053 2921 15.43      
11 A 1743 1667 12.32      
12 A 1566 1498 4.84      
13 A 1563 1495 10.38      
14 A 1551 1483 11.81      
15 A 1544 1477 18.47      
16 A 1529 1462 2.42      
17 A 1493 1429 0.40      
18 A 1455 1392 9.07      
19 A 1445 1383 11.09      
20 A 1364 1305 0.32      
21 A 1339 1281 1.90      
22 A 1294 1238 1.88      
23 A 1144 1094 0.04      
24 A 1122 1073 11.16      
25 A 1083 1036 5.35      
26 A 1035 990 1.52      
27 A 1022 978 0.86      
28 A 949 908 49.59      
29 A 948 907 7.29      
30 A 819 783 3.21      
31 A 779 745 1.75      
32 A 734 702 0.24      
33 A 541 517 9.42      
34 A 430 411 1.21      
35 A 387 370 0.97      
36 A 274 263 0.37      
37 A 224 214 0.67      
38 A 181 173 0.56      
39 A 63 60 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 30440.2 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 29122.2 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 B1B95/3-21G
ABC
0.23808 0.12646 0.09646

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.991 1.327 0.015
H2 0.331 1.875 -0.667
H3 2.017 1.425 -0.348
H4 0.920 1.806 0.998
C5 -1.881 0.074 -0.422
H6 -1.799 1.146 -0.622
H7 -2.891 -0.127 -0.054
H8 -1.738 -0.464 -1.363
C9 -0.825 -0.377 0.607
H10 -0.951 -1.445 0.814
H11 -0.981 0.167 1.548
C12 0.582 -0.123 0.110
C13 1.399 -1.117 -0.234
H14 1.094 -2.155 -0.153
H15 2.401 -0.929 -0.605

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 H8 C9 H10 H11 C12 C13 H14 H15
C11.09581.09261.09673.16392.86764.14623.54332.55933.47702.75401.50932.49023.48762.7311
H21.09581.77441.76762.86282.25163.84253.19962.83343.85403.08902.15813.20654.13393.4858
H31.09261.77441.77804.12653.83645.15644.32473.49774.28853.76352.16002.61863.70242.3986
H41.09671.76761.77803.58693.23344.40124.21872.82183.75522.56962.15083.20834.12923.4990
C53.16392.86284.12653.58691.09351.09391.09321.54242.16792.16802.52743.49493.72734.4017
H62.86762.25163.83643.23341.09351.77071.77372.18603.08092.51692.79533.93714.41454.6847
H74.14623.84255.15644.40121.09391.77071.77712.18422.50112.51023.47704.40694.47305.3810
H83.54333.19964.32474.21871.09321.77371.77712.17342.51403.07322.76903.39773.51344.2336
C92.55932.83343.49772.82181.54242.18602.18422.17341.09481.09761.51322.48992.72433.4896
H103.47703.85404.28853.75522.16793.08092.50112.51401.09481.77082.14272.59342.37083.6758
H112.75403.08903.76352.56962.16802.51692.51023.07321.09761.77082.14333.23813.54824.1556
C121.50932.15812.16002.15082.52742.79533.47702.76901.51322.14272.14331.33212.11242.1140
C132.49023.20652.61863.20833.49493.93714.40693.39772.48992.59343.23811.33211.08501.0848
H143.48764.13393.70244.12923.72734.41454.47303.51342.72432.37083.54822.11241.08501.8483
H152.73113.48582.39863.49904.40174.68475.38104.23363.48963.67584.15562.11401.08481.8483

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 115.719 C1 C12 C13 122.295
H2 C1 H3 108.352 H2 C1 H4 107.458
H2 C1 C12 110.867 H3 C1 H4 108.605
H3 C1 C12 111.212 H4 C1 C12 110.232
C5 C9 H10 109.403 C5 C9 H11 109.249
C5 C9 C12 111.603 H6 C5 H7 108.094
H6 C5 H8 108.413 H6 C5 C9 110.908
H7 C5 H8 108.686 H7 C5 C9 110.738
H8 C5 C9 109.929 C9 C12 C13 121.983
H10 C9 H11 107.743 H10 C9 C12 109.438
H11 C9 C12 109.322 C12 C13 H14 121.501
C12 C13 H15 121.680 H14 C13 H15 116.819
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.634      
2 H 0.218      
3 H 0.214      
4 H 0.215      
5 C -0.596      
6 H 0.205      
7 H 0.207      
8 H 0.215      
9 C -0.467      
10 H 0.215      
11 H 0.214      
12 C 0.016      
13 C -0.404      
14 H 0.190      
15 H 0.190      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.325 0.356 0.059 0.486
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.448 0.484 -0.990
y 0.484 -31.825 0.172
z -0.990 0.172 -34.293
Traceless
 xyz
x 0.611 0.484 -0.990
y 0.484 1.545 0.172
z -0.990 0.172 -2.157
Polar
3z2-r2-4.313
x2-y2-0.623
xy0.484
xz-0.990
yz0.172


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.397 -0.811 -0.755
y -0.811 8.150 0.375
z -0.755 0.375 5.502


<r2> (average value of r2) Å2
<r2> 141.913
(<r2>)1/2 11.913