Preparation and charachterization of a new molecular nanomachine based on diamidic 18-crown-6 macrocycle as rotaxane

A rotaxane is a molecular machine consisting of multiple docks on a chain around which a macrocycle is trapped by the bulky end stations, allowing only translational motion, which in this specific case happens upon excitation.1 They like macroscopic machines, need energy to operate, the most efficient sources of energy for them are light and electricity.2 In this paper, the preparation and identification of a new molecular nanomachine based on dimeidic 18-Crown-6 macrocyle as a type of rotaxane is discussed. Conversion of P-cresol in reaction with SOCl2 converted to dicresyl solfoxide (1). Dicresyl solfoxide in reaction with ClCH2CO2Me diester was produced (2). Macrocycle (3) was prepared from reaction diester (2) with proper amine. Reaction (3) with proper line was efforded to rotaxane (4) as nanomashine. The structures of all synthesized compounds were recognized by spectroscopic methods such as FT-IR, 1H NMR, 13C NMR, and Mass analysis (Fig. 1).

کلیدواژه ها:

Nano-machine ، Nano-motor ، Rotaxane ، Macrocycle ، 18-Crown-6