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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-196.423899
Energy at 298.15K-196.434063
Nuclear repulsion energy170.315607
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' 3175 3040 35.99      
2 A' 3142 3009 26.78      
3 A' 3139 3006 41.10      
4 A' 3131 2999 14.48      
5 A' 3053 2924 23.82      
6 A' 3033 2905 43.00      
7 A' 3017 2889 39.18      
8 A' 1767 1693 0.13      
9 A' 1550 1484 8.17      
10 A' 1536 1471 12.48      
11 A' 1524 1459 2.79      
12 A' 1459 1397 5.55      
13 A' 1455 1393 6.56      
14 A' 1411 1351 6.13      
15 A' 1370 1312 0.52      
16 A' 1350 1293 0.73      
17 A' 1175 1126 1.95      
18 A' 1121 1074 4.58      
19 A' 1070 1025 2.62      
20 A' 982 941 10.51      
21 A' 880 842 0.01      
22 A' 596 571 1.21      
23 A' 373 357 0.24      
24 A' 207 198 0.32      
25 A" 3136 3004 39.05      
26 A" 3095 2964 28.81      
27 A" 3044 2915 23.80      
28 A" 1542 1477 8.71      
29 A" 1524 1459 9.75      
30 A" 1316 1260 0.01      
31 A" 1138 1089 1.36      
32 A" 1101 1054 0.13      
33 A" 1025 982 36.98      
34 A" 859 823 5.08      
35 A" 737 706 0.81      
36 A" 298 285 2.57      
37 A" 221 212 0.58      
38 A" 201 192 2.42      
39 A" 121 116 0.10      

Unscaled Zero Point Vibrational Energy (zpe) 30436.4 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 29148.9 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
0.44420 0.08171 0.07177

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 -0.726 -1.236 0.000
C2 -0.980 -0.176 0.000
H3 -0.276 1.794 0.000
C4 0.000 0.737 0.000
H5 -2.949 -0.279 0.881
H6 -2.949 -0.279 -0.881
H7 -2.622 1.225 0.000
C8 -2.447 0.144 0.000
H9 1.931 0.968 -0.874
H10 1.931 0.968 0.874
C11 1.483 0.468 0.000
H12 2.980 -1.108 0.000
H13 1.505 -1.525 0.886
H14 1.505 -1.525 -0.886
C15 1.890 -1.007 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 H5 H6 H7 C8 H9 H10 C11 H12 H13 H14 C15
H11.09013.06382.10282.57622.57623.10702.20623.56113.56112.79003.70842.41742.41742.6255
C21.09012.09261.34002.15952.15952.15851.50133.24753.24752.54604.06852.96282.96282.9875
H33.06382.09261.09263.49553.49552.41342.72702.51302.51302.20294.36203.86953.86953.5406
C42.10281.34001.09263.24133.24132.66672.51792.13162.13161.50703.50512.85762.85762.5713
H52.57622.15953.49553.24131.76201.77351.09865.33355.03664.58016.05164.62494.95104.9719
H62.57622.15953.49553.24131.76201.77351.09865.03665.33354.58016.05164.95104.62494.9719
H73.10702.15852.41342.66671.77351.77351.09554.64244.64244.17376.06835.03735.03735.0332
C82.20621.50132.72702.51791.09861.09861.09554.53944.53943.94325.56974.38014.38014.4866
H93.56113.24752.51302.13165.33355.03664.64244.53941.74741.10182.48523.08132.52932.1602
H103.56113.24752.51302.13165.03665.33354.64244.53941.74741.10182.48522.52933.08132.1602
C112.79002.54602.20291.50704.58014.58014.17373.94321.10181.10182.17402.18122.18121.5300
H123.70844.06854.36203.50516.05166.05166.06835.56972.48522.48522.17401.77091.77091.0954
H132.41742.96283.86952.85764.62494.95105.03734.38013.08132.52932.18121.77091.77221.0962
H142.41742.96283.86952.85764.95104.62495.03734.38012.52933.08132.18121.77091.77221.0962
C152.62552.98753.54062.57134.97194.97195.03324.48662.16022.16021.53001.09541.09621.0962

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 119.491 H1 C2 C8 115.805
C2 C4 H3 118.338 C2 C4 C11 126.737
C2 C8 H5 111.384 C2 C8 H6 111.384
C2 C8 H7 111.486 H3 C4 C11 114.926
C4 C2 C8 124.703 C4 C11 H9 108.591
C4 C11 H10 108.591 C4 C11 C15 115.696
H5 C8 H6 106.633 H5 C8 H7 107.865
H6 C8 H7 107.865 H9 C11 H10 104.926
H9 C11 C15 109.246 H10 C11 C15 109.246
C11 C15 H12 110.712 C11 C15 H13 111.238
C11 C15 H14 111.238 H12 C15 H13 107.815
H12 C15 H14 107.815 H13 C15 H14 107.870
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 0.144      
2 C -0.110      
3 H 0.136      
4 C -0.117      
5 H 0.168      
6 H 0.168      
7 H 0.164      
8 C -0.534      
9 H 0.166      
10 H 0.166      
11 C -0.351      
12 H 0.157      
13 H 0.163      
14 H 0.163      
15 C -0.484      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.079 0.002 0.000 0.079
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.245 0.449 0.000
y 0.449 -31.893 0.000
z 0.000 0.000 -34.169
Traceless
 xyz
x 1.786 0.449 0.000
y 0.449 0.814 0.000
z 0.000 0.000 -2.600
Polar
3z2-r2-5.199
x2-y20.648
xy0.449
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> 172.076
(<r2>)1/2 13.118