title: Synthesis, X-ray structures and luminescence properties of three multidimensional metal-organic frameworks incorporating the versatile 5-(pyrimidyl)tetrazolato bridging ligand.
abstract: The hydrated sodium salt of the novel and versatile 5-(pyrimidyl)tetrazolato ligand (pmtz(-)), Na(pmtz).H(2)O (1), has been prepared in very mild conditions from 2-cyanopyrimidine and NaN(3). Two coordination polymers [Cd(pmtz)(2)]n (2)and [Cd(pmtz)(micro-Cl)(0.5)(micro-N(3))(0.5)(H(2)O)](n)(3), , have been synthesized from (1)under conventional or hydrothermal conditions, respectively, and fully characterized by single-crystal or powder X-ray diffraction methods. Compounds and consist of mono-dimensional polymeric chains, further stabilized by interchain pi-pi stacking and hydrogen bond interactions. Compound , containing octacoordinated Cd ions of crystallographic D(2) symmetry, exhibits neutral (4, 4) layers formed by square units of the metallacalix[4]arene type in 1,3-alternate conformation. Species , and display intense, room temperature, photoluminescence in the solid state.
authors.affiliation: Dipartimento di Chimica Strutturale e Stereochimica Inorganica, Università di Milano, Via Venezian 21, 20133, Milano, Italy.
authors.forename: A
authors.initials: A
authors.lastname: Rodríguez-Diéguez
authors.forename: A
authors.initials: A
authors.lastname: Salinas-Castillo
authors.forename: S
authors.initials: S
authors.lastname: Galli
authors.forename: N
authors.initials: N
authors.lastname: Masciocchi
authors.forename: J
authors.initials: J
authors.lastname: M Gutiérrez-Zorrilla
authors.forename: P
authors.initials: P
authors.lastname: Vitoria
authors.forename: E
authors.initials: E
authors.lastname: Colacio