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Hybrid one-dimensional lead halides, containing the protonated 1,8-bis(dimethylamino)naphthalene moiety (C14H19N2, monoprotonated “proton sponge”), were prepared by simple one-pot methods and investigated in terms of crystal structure, morphology, thermal stability and electronic properties. The as-precipitated (C14H19N2)PbBr3 and (C14H19N2)PbI3 species are isostructural and crystallize in the orthorhombic Pbca space group, resulting in 1D crystal phases with ([PbX3]−)∞ chains (built by face-sharing [PbX6] octahedra; X = Br, I), among which the (C14H19N2)+ cations are inserted. The two compounds display complete miscibility in the solid state: both (C14H19N2)PbI2Br and (C14H19N2)PbIBr2 crystal phases were successfully synthetized and do not show segregation effects. TGA and DSC measurements showed that, while all these materials are stable up to 250 °C, the iodine-rich (C14H19N2 …
Royal Society of Chemistry
Publication date: 
1 Jan 2021

Candida Pipitone, Francesco Giannici, Antonino Martorana, Federica Bertolotti, Gabriele Calabrese, Silvia Milita, Antonietta Guagliardi, Norberto Masciocchi

Biblio References: 
Volume: 23 Issue: 5 Pages: 1126-1139