Hexacene Index

General properties

Symmetry point group D2h
Symmetry elements E     C2(z)     C2(y)     C2(x)     i     &sigmah(xy)     &sigmah(xz)     &sigmah(yz)
Irriducible representation &Gamma3N 21 Ag + 21 B1g + 10 B2g + 11 B3g + 10 Au + 11 B1u + 21 B2u + 21 B3u
Irriducible representation &Gammavib 21 Ag + 20 B1g + 9 B2g + 10 B3g + 10 Au + 10 B1u + 20 B2u + 20 B3u
Infrared active modes 10 B1u + 20 B2u + 20 B3u
Single ionization energy (eV)
Adiab. = 5.83 Vert. = 5.87 (Exp. 6.36)
Double ionization energy (eV)
Singlet: Adiab. = 15.18 Vert. = 15.30 (Exp. 1—)
Triplet: Adiab. = 15.68 Vert. = 15.78
Electron affinity (eV)
Adiab. = 1.78 Vert. = 1.72 (Exp. —)
Zero Point Energies (kcal/mol)
Anion = 210 Neutral = 212 Cation = 213 Dication S = 214
Static dipole polarizabilities (Å3)
Anion: &alphaxx = 189 &alphayy = 49 &alphazz = 24
Neutral: &alphaxx = 134 &alphayy = 46 &alphazz = 22
Cation: &alphaxx = 179 &alphayy = 44 &alphazz = 20
Dication S: &alphaxx = 195 &alphayy = 41 &alphazz = 19
Rotational constants(cm-1)
Anion: A = 3.712e-02 B = 2.352e-03 C = 2.211e-03
Neutral: A = 3.687e-02 B = 2.374e-03 C = 2.231e-03
Cation: A = 3.690e-02 B = 2.382e-03 C = 2.2383-03
Dication S: A = 3.687e-02 B = 2.386e-03 C = 2.241e-03
Dication T: A = 3.695e-02 B = 2.375e-03 C = 2.232e-03
van der Waals coefficients (a.u.)#
Average static polarizability &alpha(0) = 454
Effective frequency &omega1 = 0.272
Homomolecular Hamaker constant (x10-3) C6 = 42.1
Coefficient of the retardated vdW interaction (x10-6) KAA = 8.23

#The full set of C6hexacene, PAH for all PAHs in the database can be found here


Hexacene Index