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

using model chemistry: HF/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at HF/LANL2DZ
 hartrees
Energy at 0K-193.880854
Energy at 298.15K-193.888226
Nuclear repulsion energy152.079555
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 HF/LANL2DZ
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 3335 3001 27.93      
2 A 3305 2974 10.83      
3 A 3264 2937 48.55      
4 A 3196 2876 15.11      
5 A 1653 1488 4.13      
6 A 1637 1473 9.54      
7 A 1580 1421 0.05      
8 A 1568 1411 4.28      
9 A 1267 1140 0.06      
10 A 1208 1087 3.08      
11 A 1189 1070 0.82      
12 A 1023 921 32.29      
13 A 883 794 0.16      
14 A 594 534 12.00      
15 A 328 296 0.64      
16 A 173 155 1.03      
17 A 150 135 2.96      
18 A 3335 3001 46.69      
19 A 3304 2974 31.76      
20 A 3264 2937 50.14      
21 A 3194 2875 130.72      
22 A 2214 1993 31.31      
23 A 1644 1480 13.28      
24 A 1636 1472 9.53      
25 A 1566 1409 5.16      
26 A 1444 1300 14.39      
27 A 1209 1088 6.57      
28 A 1188 1069 1.20      
29 A 1039 935 11.55      
30 A 819 737 22.18      
31 A 629 566 23.90      
32 A 249 224 3.54      
33 A 157 142 1.69      

Unscaled Zero Point Vibrational Energy (zpe) 26621.7 cm-1
Scaled (by 0.8999) Zero Point Vibrational Energy (zpe) 23956.9 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 HF/LANL2DZ
ABC
0.57905 0.07384 0.07141

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/LANL2DZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.412
C2 0.000 1.311 0.414
C3 0.000 -1.311 0.414
C4 -0.879 2.183 -0.461
C5 0.879 -2.183 -0.461
H6 0.671 1.822 1.085
H7 -0.671 -1.822 1.085
H8 -1.509 2.822 0.150
H9 -0.272 2.826 -1.090
H10 -1.516 1.585 -1.099
H11 1.509 -2.822 0.150
H12 0.272 -2.826 -1.090
H13 1.516 -1.585 -1.099

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.31051.31052.51002.51002.05462.05463.21073.21212.66323.21073.21212.6632
C21.31052.62101.51643.70701.07773.27282.15202.15242.15924.40724.41003.6012
C31.31052.62103.70701.51643.27281.07774.40724.41003.60122.15202.15242.1592
C42.51001.51643.70704.70632.21874.29781.08551.08561.08185.57875.17774.5095
C52.51003.70701.51644.70634.29782.21875.57875.17774.50951.08551.08561.0818
H62.05461.07773.27282.21874.29783.88252.57402.57443.09964.81065.14724.1337
H72.05463.27281.07774.29782.21873.88254.81065.14724.13372.57402.57443.0996
H83.21072.15204.40721.08555.57872.57404.81061.75151.75776.39996.05035.4886
H93.21212.15244.41001.08565.17772.57445.14721.75151.75806.05035.67844.7592
H102.66322.15923.60121.08184.50953.09964.13371.75771.75805.48864.75924.3860
H113.21074.40722.15205.57871.08554.81062.57406.39996.05035.48861.75151.7577
H123.21214.41002.15245.17771.08565.14722.57446.05035.67844.75921.75151.7580
H132.66323.60122.15924.50951.08184.13373.09965.48864.75924.38601.75771.7580

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 125.059 C1 C2 H6 118.376
C1 C3 C5 125.059 C1 C3 H7 118.376
C2 C1 C3 179.843 C2 C4 H8 110.505
C2 C4 H9 110.537 C2 C4 H10 111.311
C3 C5 H11 110.505 C3 C5 H12 110.537
C3 C5 H13 111.311 C4 C2 H6 116.566
C5 C3 H7 116.566 H8 C4 H9 107.564
H8 C4 H10 108.393 H9 C4 H10 108.415
H11 C5 H12 107.564 H11 C5 H13 108.393
H12 C5 H13 108.415
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.004      
2 C -0.179      
3 C -0.179      
4 C -0.574      
5 C -0.574      
6 H 0.201      
7 H 0.201      
8 H 0.182      
9 H 0.181      
10 H 0.190      
11 H 0.182      
12 H 0.181      
13 H 0.190      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.264 0.264
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.801 -0.186 0.000
y -0.186 -27.942 0.000
z 0.000 0.000 -33.050
Traceless
 xyz
x -2.306 -0.186 0.000
y -0.186 4.984 0.000
z 0.000 0.000 -2.678
Polar
3z2-r2-5.357
x2-y2-4.860
xy-0.186
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.519 -0.731 0.000
y -0.731 13.340 0.000
z 0.000 0.000 5.466


<r2> (average value of r2) Å2
<r2> 173.160
(<r2>)1/2 13.159