The synthesis and characterization of new [(BiSe){sub 1.10}]{sub m}[NbSe{sub 2}]{sub n}, [(PbSe){sub 1.10}]{sub m}[NbSe{sub 2}]{sub n}, [(CeSe){sub 1.14}]{sub m}[NbSe{sub 2}]{sub n} and [(PbSe){sub 1.12}]{sub m}[TaSe{sub 2}]{sub n} misfit layered compounds

Fifty-three new misfit layered compounds within the [(BiSe){sub 1.10}]{sub m}[NbSe{sub 2}]{sub n,} [(PbSe){sub 1.10}]{sub m}[NbSe{sub 2}]{sub n}, [(CeSe){sub 1.14}]{sub m}[NbSe{sub 2}]{sub n}, and [(PbSe){sub 1.12}]{sub m}[TaSe{sub 2}]{sub n} families of compounds were successfully synthesized. This is the first report of compounds with n and m larger than 3, as self-assembly from designed precursors allows compounds with particular n and m values to be selectively prepared. The compounds form as crystallographically aligned films, with the c-axis perpendicular to the substrate. The compounds are well ordered along the c-axis and in the ab plane, with shorter coherence lengths between the constituent layers. All 18 compounds that were measured were found to be metallic. - Graphical abstract: The synthesis and characterization of new [(BiSe){sub 1.10}]{sub m}[NbSe{sub 2}]{sub n}, [(PbSe){sub 1.10}]{sub m}[NbSe{sub 2}]{sub n}, [(CeSe){sub 1.14}]{sub m}[NbSe{sub 2}]{sub n}, and [(PbSe){sub 1.12}]{sub m}[TaSe{sub 2}]{sub n} misfit layered compounds.