Novel Layered Organic-Inorganic Networks Assembled From PbI2 and N,N'-bis(3-pyridylmethyl)-1,4-biphenylenedimethyleneimine.

Two novel metal-organic frameworks with different structures were obtained by reactions of PbI₂ with N,N'-bis(3-pyridylmethyl)-l,4-biphenylenedimethyleneimine (L) under different M/L ratios. When the M/L ratio is 1:1, L bridges [PbI₂]_n chains to form a layered organic-inorganic hybrid compound with the empirical formula [Pb(L)I₂] (1). When changing the M/L ratio to 2:1, L bridges the double chains [Pb₂I₄]_n to form networks [Pb₂(L)I₄] (2), which are further linked by C-H…I hydrogen bonds to give a 3D structure. [ABSTRACT FROM AUTHOR]