Crystal engineering of microporous ‘Chinese-lantern’ compounds to improve their ability to reversibly adsorb sulfur dioxideElectronic supplementary information (ESI) available: full synthesis and crystal refinement details for 2–4. See http://www.rsc.org/suppdata/cc/b1/b101263k/

Abstract

Three new ‘Chinese lantern’ complexes [XMn(μ-dppO₂)₄MnX]²⁺2X⁻ ·4MeOH·Me₂CO [X = Cl, Br, I; dppO₂ = 1,3-bis(diphenylphosphinoyl)propane], have been structurally characterised using single-crystal X-ray diffraction and shown to have increasing affinity for SO₂ across the series Cl < Br < I via thermogravimetric measurements.