Tunable spin-crossover behavior of the Hofmann-like network {Fe(bpac)[Pt(CN)4]} through host-guest chemistry

Carlos Bartual-Murgui; Amal Akou; Helena J Shepherd; Gábor Molnár; J Antonio Real; Lionel Salmon; Azzedine Bousseksou

doi:10.1002/chem.201300227

Tunable spin-crossover behavior of the Hofmann-like network {Fe(bpac)[Pt(CN)4]} through host-guest chemistry

Chemistry. 2013 Oct 25;19(44):15036-43. doi: 10.1002/chem.201300227. Epub 2013 Sep 17.

Authors

Carlos Bartual-Murgui¹, Amal Akou, Helena J Shepherd, Gábor Molnár, J Antonio Real, Lionel Salmon, Azzedine Bousseksou

Affiliation

¹ Laboratoire de Chimie de Coordination, CNRS and Université de Toulouse (UPS, INP), 205 route de Narbonne, 31077 Toulouse (France); CNRS and Université de Toulouse (UPS, INSA, IAES), LAAS, 7 avenue du colonel Roche, 31077 Toulouse (France).

PMID: 24105972
DOI: 10.1002/chem.201300227

Abstract

A study of the spin-crossover (SCO) behavior of the tridimensional porous coordination polymer {Fe(bpac)[Pt(CN)4]} (bpac=bis(4-pyridyl)acetylene) on adsorption of different mono- and polyhalobenzene guest molecules is presented. The resolution of the crystal structure of {Fe(bpac)[Pt(CN)4]}⋅G (G=1,2,4-trichlorobenzene) shows preferential guest sites establishing π⋅⋅⋅π stacking interactions with the host framework. These host-guest interactions may explain the relationship between the modification of the SCO behavior and both the chemical nature of the guest molecule (electronic factors) and the number of adsorbed molecules (steric factors).

Keywords: clathrates; host-guest systems; metal-organic frameworks; spin crossover; stacking interactions.