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All results from a given calculation for C5H10 (2-Pentene, (E)-)

using model chemistry: B3PW91/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-31G**
 hartrees
Energy at 0K-196.480282
Energy at 298.15K-196.490374
Nuclear repulsion energy170.661349
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 B3PW91/6-31G**
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' 3166 3034 29.94      
2 A' 3137 3006 21.29      
3 A' 3137 3006 37.76      
4 A' 3130 3000 12.12      
5 A' 3055 2927 21.64      
6 A' 3035 2908 38.04      
7 A' 3021 2895 35.06      
8 A' 1765 1692 0.17      
9 A' 1516 1453 5.02      
10 A' 1500 1437 8.99      
11 A' 1483 1421 2.50      
12 A' 1425 1365 7.34      
13 A' 1417 1358 0.25      
14 A' 1379 1322 8.87      
15 A' 1338 1282 0.90      
16 A' 1321 1266 0.03      
17 A' 1152 1104 1.14      
18 A' 1103 1057 6.16      
19 A' 1037 994 2.72      
20 A' 961 921 8.66      
21 A' 868 832 0.06      
22 A' 584 560 0.96      
23 A' 364 349 0.23      
24 A' 202 194 0.31      
25 A" 3133 3002 32.25      
26 A" 3093 2965 24.25      
27 A" 3047 2920 21.26      
28 A" 1506 1444 6.41      
29 A" 1486 1424 6.40      
30 A" 1292 1238 0.06      
31 A" 1104 1058 1.43      
32 A" 1065 1020 0.04      
33 A" 1013 971 26.33      
34 A" 829 795 3.23      
35 A" 710 680 0.62      
36 A" 301 288 1.98      
37 A" 225 215 0.15      
38 A" 201 193 2.45      
39 A" 126 121 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 30111.2 cm-1
Scaled (by 0.9584) Zero Point Vibrational Energy (zpe) 28858.5 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 B3PW91/6-31G**
ABC
0.44760 0.08192 0.07200

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.725 -1.234 0.000
C2 -0.980 -0.174 0.000
H3 -0.277 1.790 0.000
C4 0.000 0.733 0.000
H5 -2.945 -0.275 0.879
H6 -2.945 -0.275 -0.879
H7 -2.617 1.229 0.000
C8 -2.443 0.148 0.000
H9 1.924 0.967 -0.871
H10 1.924 0.967 0.871
C11 1.479 0.463 0.000
H12 2.978 -1.104 0.000
H13 1.507 -1.526 0.885
H14 1.507 -1.526 -0.885
C15 1.889 -1.006 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 H5 H6 H7 C8 H9 H10 C11 H12 H13 H14 C15
H11.09003.05602.09572.57312.57313.10532.20483.55173.55172.78063.70522.41812.41812.6231
C21.09002.08541.33502.15512.15512.15561.49793.23913.23912.53954.06592.96562.96562.9866
H33.05602.08541.09223.48613.48612.40622.71732.50592.50592.20044.35523.86753.86753.5358
C42.09571.33501.09223.23433.23432.66332.51162.12492.12491.50313.49922.85602.85602.5670
H52.57312.15513.48613.23431.75831.77241.09745.32075.02474.56986.04514.62414.94904.9667
H62.57312.15513.48613.23431.75831.77241.09745.02475.32074.56986.04514.94904.62414.9667
H73.10532.15562.40622.66331.77241.77241.09434.63104.63104.16636.06185.03745.03745.0289
C82.20481.49792.71732.51161.09741.09741.09434.52734.52733.93385.56374.38004.38004.4823
H93.55173.23912.50592.12495.32075.02474.63104.52731.74141.10022.48133.07722.52762.1562
H103.55173.23912.50592.12495.02475.32074.63104.52731.74141.10022.48132.52763.07722.1562
C112.78062.53952.20041.50314.56984.56984.16633.93381.10021.10022.16882.17702.17701.5246
H123.70524.06594.35523.49926.04516.04516.06185.56372.48132.48132.16881.76801.76801.0941
H132.41812.96563.86752.85604.62414.94905.03744.38003.07722.52762.17701.76801.76901.0950
H142.41812.96563.86752.85604.94904.62415.03744.38002.52763.07722.17701.76801.76901.0950
C152.62312.98663.53582.56704.96674.96675.02894.48232.15622.15621.52461.09411.09501.0950

picture of 2-Pentene, (E)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C2 C4 119.241 H1 C2 C8 115.961
C2 C4 H3 118.099 C2 C4 C11 126.866
C2 C8 H5 111.340 C2 C8 H6 111.340
C2 C8 H7 111.576 H3 C4 C11 115.034
C4 C2 C8 124.798 C4 C11 H9 108.424
C4 C11 H10 108.424 C4 C11 C15 115.952
H5 C8 H6 106.478 H5 C8 H7 107.940
H6 C8 H7 107.940 H9 C11 H10 104.632
H9 C11 C15 109.402 H10 C11 C15 109.402
C11 C15 H12 110.753 C11 C15 H13 111.353
C11 C15 H14 111.353 H12 C15 H13 107.729
H12 C15 H14 107.729 H13 C15 H14 107.757
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.106      
2 C -0.089      
3 H 0.100      
4 C -0.093      
5 H 0.137      
6 H 0.137      
7 H 0.131      
8 C -0.426      
9 H 0.133      
10 H 0.133      
11 C -0.265      
12 H 0.126      
13 H 0.134      
14 H 0.134      
15 C -0.399      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.087 0.004 0.000 0.087
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.223 0.452 0.000
y 0.452 -31.813 0.000
z 0.000 0.000 -33.893
Traceless
 xyz
x 1.630 0.452 0.000
y 0.452 0.745 0.000
z 0.000 0.000 -2.375
Polar
3z2-r2-4.750
x2-y20.590
xy0.452
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> 171.512
(<r2>)1/2 13.096