Topochemical conversion of a dense metal-organic framework from a crystalline insulator to an amorphous semiconductor.

ABSTRACT: The topochemical conversion of a dense, insulating metal-organic framework (MOF) into a semiconducting amorphous MOF is described. Treatment of single crystals of copper(i) chloride trithiocyanurate, Cu^ICl(ttcH₃) (ttcH₃ = trithiocyanuric acid), 1, in aqueous ammonia solution yields monoliths of amorphous Cu^I_1.8(ttc)_0.6(ttcH₃)_0.4, 3. The treatment changes the transparent orange crystals of 1 into shiny black monoliths of 3 with retention of morphology, and moreover increases the electrical conductivity from insulating to semiconducting (conductivity of 3 ranges from 4.2 × 10^-11 S cm^-1 at 20 °C to 7.6 × 10^-9 S cm^-1 at 140 °C; a

SUBMITTER: Tominaka S 

PROVIDER: S-EPMC5811114 | biostudies-literature | 2015 Feb

REPOSITORIES: biostudies-literature