cellulose I, and the ethynyl and buta-1,3-diynyl linker units ensure an appropriate phase shift between them. The H-bonding of the T-x-x mimics was analysed and compared to the one of the mono-chained analogues T-x and of the known cellulose II mimics N-x-x and N-x where one or two cellodextrin chains are O-glycosidically bonded to naphthalene-1,8-diethanol, or to naphthalene-1-ethanol. The OH signals of