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

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/6-31G*
 hartrees
Energy at 0K-195.013068
Energy at 298.15K-195.019976
Nuclear repulsion energy151.202498
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 PBEPBEultrafine/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3082 3032 13.88      
2 A 3053 3002 7.83      
3 A 3026 2976 21.57      
4 A 2972 2923 7.55      
5 A 1493 1468 2.77      
6 A 1465 1441 5.66      
7 A 1422 1398 0.17      
8 A 1381 1358 1.48      
9 A 1150 1131 0.14      
10 A 1070 1052 0.97      
11 A 1028 1011 0.09      
12 A 872 857 20.92      
13 A 815 801 0.02      
14 A 533 524 2.22      
15 A 285 281 1.41      
16 A 170 167 0.00      
17 A 136 134 1.53      
18 A 3083 3032 30.77      
19 A 3051 3001 9.46      
20 A 3026 2976 21.60      
21 A 2971 2922 74.56      
22 A 2029 1996 8.16      
23 A 1474 1449 6.74      
24 A 1464 1440 6.09      
25 A 1378 1355 4.77      
26 A 1286 1265 22.52      
27 A 1081 1063 2.56      
28 A 1023 1006 0.10      
29 A 950 934 17.44      
30 A 682 671 17.84      
31 A 561 552 10.71      
32 A 224 220 0.57      
33 A 152 150 1.28      

Unscaled Zero Point Vibrational Energy (zpe) 24194.0 cm-1
Scaled (by 0.9835) Zero Point Vibrational Energy (zpe) 23794.8 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 PBEPBEultrafine/6-31G*
ABC
0.57301 0.07336 0.07096

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.415
C2 0.000 1.318 0.413
C3 0.000 -1.318 0.413
C4 -0.875 2.187 -0.460
C5 0.875 -2.187 -0.460
H6 0.683 1.845 1.097
H7 -0.683 -1.845 1.097
H8 -1.518 2.844 0.154
H9 -0.263 2.847 -1.101
H10 -1.524 1.578 -1.110
H11 1.518 -2.844 0.154
H12 0.263 -2.847 -1.101
H13 1.524 -1.578 -1.110

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.31811.31812.51282.51282.08232.08233.23433.23672.67123.23433.23672.6712
C21.31812.63611.51123.71661.10093.30752.16792.16842.16974.43784.44013.6092
C31.31812.63613.71661.51123.30751.10094.43784.44013.60922.16792.16842.1697
C42.51281.51123.71664.71092.22964.32621.10591.10591.10115.60495.20094.5110
C52.51283.71661.51124.71094.32622.22965.60495.20094.51101.10591.10591.1011
H62.08231.10093.30752.22964.32623.93502.59462.59453.13214.85515.19884.1581
H72.08233.30751.10094.32622.22963.93504.85515.19884.15812.59462.59453.1321
H83.23432.16794.43781.10595.60492.59464.85511.77571.78926.44766.09445.5139
H93.23672.16844.44011.10595.20092.59455.19881.77571.78946.09445.71924.7723
H102.67122.16973.60921.10114.51103.13214.15811.78921.78945.51394.77234.3868
H113.23434.43782.16795.60491.10594.85512.59466.44766.09445.51391.77571.7892
H123.23674.44012.16845.20091.10595.19882.59456.09445.71924.77231.77571.7894
H132.67123.60922.16974.51101.10114.15813.13215.51394.77234.38681.78921.7894

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 125.145 C1 C2 H6 118.538
C1 C3 C5 125.145 C1 C3 H7 118.538
C2 C1 C3 179.835 C2 C4 H8 110.911
C2 C4 H9 110.948 C2 C4 H10 111.342
C3 C5 H11 110.911 C3 C5 H12 110.948
C3 C5 H13 111.342 C4 C2 H6 116.317
C5 C3 H7 116.317 H8 C4 H9 106.804
H8 C4 H10 108.327 H9 C4 H10 108.347
H11 C5 H12 106.804 H11 C5 H13 108.327
H12 C5 H13 108.347
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.328      
2 C -0.325      
3 C -0.325      
4 C -0.510      
5 C -0.510      
6 H 0.157      
7 H 0.157      
8 H 0.171      
9 H 0.170      
10 H 0.173      
11 H 0.171      
12 H 0.170      
13 H 0.173      


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 -0.209 0.209
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.539 -0.256 0.000
y -0.256 -27.510 0.000
z 0.000 0.000 -31.723
Traceless
 xyz
x -1.923 -0.256 0.000
y -0.256 4.121 0.000
z 0.000 0.000 -2.198
Polar
3z2-r2-4.397
x2-y2-4.029
xy-0.256
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.943 -1.107 0.000
y -1.107 13.659 0.000
z 0.000 0.000 5.829


<r2> (average value of r2) Å2
<r2> 173.794
(<r2>)1/2 13.183