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All results from a given calculation for C5H8 (2,3-Pentadiene)

using model chemistry: B3LYP/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3LYP/6-31G**
 hartrees
Energy at 0K-195.305378
Energy at 298.15K-195.312440
Nuclear repulsion energy151.934305
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 B3LYP/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 3139 3016 18.67      
2 A 3121 2998 3.77      
3 A 3085 2964 25.99      
4 A 3033 2914 7.75      
5 A 1527 1467 2.39      
6 A 1498 1439 4.51      
7 A 1460 1403 0.13      
8 A 1417 1362 0.80      
9 A 1171 1125 0.01      
10 A 1097 1054 1.42      
11 A 1061 1019 0.02      
12 A 906 870 19.11      
13 A 830 797 0.00      
14 A 548 527 2.67      
15 A 294 283 1.21      
16 A 177 170 0.00      
17 A 140 135 1.31      
18 A 3139 3016 40.26      
19 A 3119 2997 3.37      
20 A 3085 2964 25.57      
21 A 3032 2913 77.87      
22 A 2080 1998 10.96      
23 A 1506 1447 5.35      
24 A 1497 1439 4.81      
25 A 1414 1359 6.62      
26 A 1321 1269 24.13      
27 A 1103 1060 2.92      
28 A 1058 1017 0.37      
29 A 964 926 13.33      
30 A 711 683 15.03      
31 A 578 555 10.85      
32 A 231 222 0.53      
33 A 160 154 1.05      

Unscaled Zero Point Vibrational Energy (zpe) 24749.9 cm-1
Scaled (by 0.9608) Zero Point Vibrational Energy (zpe) 23779.7 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 B3LYP/6-31G**
ABC
0.57796 0.07399 0.07156

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.412
C2 0.000 1.310 0.413
C3 0.000 -1.310 0.413
C4 -0.874 2.179 -0.459
C5 0.874 -2.179 -0.459
H6 0.680 1.829 1.091
H7 -0.680 -1.829 1.091
H8 -1.512 2.829 0.151
H9 -0.265 2.833 -1.095
H10 -1.517 1.575 -1.104
H11 1.512 -2.829 0.151
H12 0.265 -2.833 -1.095
H13 1.517 -1.575 -1.104

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.30961.30962.50422.50422.06602.06603.21853.21992.66103.21853.21992.6610
C21.30962.61921.51023.70071.09163.28202.15952.15992.16174.41434.41683.5952
C31.30962.61923.70071.51023.28201.09164.41434.41683.59522.15952.15992.1617
C42.50421.51023.70074.69552.22294.30181.09681.09681.09255.58125.17934.4974
C52.50423.70071.51024.69554.30182.22295.58125.17934.49741.09681.09681.0925
H62.06601.09163.28202.22294.30183.90212.58592.58453.11594.82445.16604.1363
H72.06603.28201.09164.30182.22293.90214.82445.16604.13632.58592.58453.1159
H83.21852.15954.41431.09685.58122.58594.82441.76291.77466.41606.06445.4910
H93.21992.15994.41681.09685.17932.58455.16601.76291.77516.06445.69164.7552
H102.66102.16173.59521.09254.49743.11594.13631.77461.77515.49104.75524.3739
H113.21854.41432.15955.58121.09684.82442.58596.41606.06445.49101.76291.7746
H123.21994.41682.15995.17931.09685.16602.58456.06445.69164.75521.76291.7751
H132.66103.59522.16174.49741.09254.13633.11595.49104.75524.37391.77461.7751

picture of 2,3-Pentadiene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 125.112 C1 C2 H6 118.435
C1 C3 C5 125.112 C1 C3 H7 118.435
C2 C1 C3 179.897 C2 C4 H8 110.862
C2 C4 H9 110.898 C2 C4 H10 111.306
C3 C5 H11 110.862 C3 C5 H12 110.898
C3 C5 H13 111.306 C4 C2 H6 116.453
C5 C3 H7 116.453 H8 C4 H9 106.961
H8 C4 H10 108.308 H9 C4 H10 108.352
H11 C5 H12 106.961 H11 C5 H13 108.308
H12 C5 H13 108.352
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.279      
2 C -0.261      
3 C -0.261      
4 C -0.331      
5 C -0.331      
6 H 0.106      
7 H 0.106      
8 H 0.116      
9 H 0.116      
10 H 0.115      
11 H 0.116      
12 H 0.116      
13 H 0.115      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.193 0.193
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.610 -0.211 0.000
y -0.211 -27.860 0.000
z 0.000 0.000 -31.785
Traceless
 xyz
x -1.788 -0.211 0.000
y -0.211 3.837 0.000
z 0.000 0.000 -2.050
Polar
3z2-r2-4.100
x2-y2-3.750
xy-0.211
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.863 -1.020 0.000
y -1.020 13.404 0.000
z 0.000 0.000 5.756


<r2> (average value of r2) Å2
<r2> 172.540
(<r2>)1/2 13.135