Based on 4H, 6H and 8H diamond polytypes, novel extended lattice allotropes C10, C14 C18 characterized by mixed sp3/sp2 carbon hybridizations were devised based crystal chemistry rationale first-principles calculations of the ground state structures energy derived properties: mechanical, dynamic (phonons), electronic band structure. The found increasingly cohesive along series, with values appr...

Miconazole at minimal fungitoxic concentrations inhibits ergosterol biosynthesis in sporidia of Ustilago maydis by interference with sterol C14 demethylation. The action is analogous to that of the fungicides triarimol and fenarimol. The fungicide 1-dodecylimidazole at low concentrations (0.1 to 0.25 mug/ml) inhibits sterol C14 demethylation; however, at higher concentrations (1.0 mug/ml or gre...