From Pagodanes to Dodecahedranes - Search for a Serviceable Access to the Parent (C 20 H 20 ) Hydrocarbon ** **Dedicated to Professor W. von E. Doering on the occasion of his 80th birthday. H.P. very fondly remembers his two post-doc years at Yale University (1957–59).

Exohedral functionalization of the icosahedral cluster Si20H20: a density functional theory study

“…1 for n ¼ 20. This is similar to dodecahedrane C 20 H 20 [8][9][10][11][12], which represents the precursor for the synthesis of C 20 fullerene [13]. Both C 20 H 20 and carbon-based fullerenes have a rich chemistry and have been at the center stage of the development of many novel derivatives, several of which might find interesting applications in medicinal chemistry, materials science, and nanotechnology [14].…”

The Vibrational Inelastic Neutron Scattering Spectrum of Dodecahedrane: Experiment and DFT Simulation

“…The synthesis and characterization of the dodecahedrane have been discussed. [1,2] The sample was 260 mg of high-purity solid dodecahedrane in an aluminum foil sachet contained in an aluminum cell for protection. The cell was mounted in a cryostat held at 15 K. Data were collection for 20 h with ISIS operating at about 180 mA of proton current.…”

Oligounsaturated Five‐Membered Carbocycles – Aromatic and Antiaromatic Compounds in the Same Family

“…Thus, the ideal starting material is the most highly symmetrical C 20 H 20 hydrocarbon, the so-called pentagondodecahedrane (65), which also represents the lowest energy structure of all (CH) 20 isomers. The first synthesis of 65 by Paquette et al has been a landmark in organic synthesis [64].…”