Crystal engineering of a family of hybrid ultramicroporous materials based upon interpenetration and dichromate linkers.

ABSTRACT: A new family of 2-fold interpenetrated primitive cubic (pcu) networks of formula [M(L)₂(Cr₂O₇)] _n (M = Co²⁺, Ni²⁺, Cu²⁺ and Zn²⁺; L = 4,4'-azopyridine), DICRO-3-M-i, has been synthesised and their structures, permanent porosity and gas sorption properties were comprehensively characterised. Molecular simulations indicate that CO₂ molecules occupy both of the two distinct ultramicropores that run through this isostructural series. The orientation of the Cr₂O₇^2- pillars is thought to contribute to high isosteric enthalpy of adsorption (Q_st) towards CO₂ and temperature programmed desorption experiments reveal that

SUBMITTER: Scott HS 

PROVIDER: S-EPMC6021753 | biostudies-literature | 2016 Aug

REPOSITORIES: biostudies-literature