title: Di-μ-azido-bis-(μ-1,4,7,10,13,16-hexa-oxacyclo-octa-deca-ne)bis-(5,10,15,20-tetra-phenyl-porphyrinato)dicadmium-disodium.
abstract: The asymmetric unit of the title compound, [Cd2Na2(N3)2(C44H28N4)2(C12H24O6)2], consists of one half of the dimeric complex; the tetra-nuclear mol-ecule lies about an inversion centre. The Cd(II) atom is coordinated by the four pyrrole N atoms of the 5,10,15,20-tetra-phenyl-porphyrinate ligand and one N atom of the axial azide ligand in a square-pyramidal geometry. The azide group is also linked to the Na(I) atom, which is surrounded by one 18-crown-6 molecule and additionally bonded to a second 18-crown-6 molecule trans to the azide group. The porphyrin core exhibits a major doming distortion (∼40%) and the crystal structure is stabilized by weak C-H⋯π inter-actions. The mol-ecular structure features weak intra-molecular hydrogen bonds: two O-H⋯O inter-actions within the 18-crown-6 mol-ecule and one C-H(18-crown-6)⋯N(azido) contact.
authors.affiliation: Laboratoire de Physico-chimie des Matériaux, Université de Monastir, Faculté des Sciences de Monastir, Avenue de l'environnement, 5019 Monastir, Tunisia.
authors.forename: Hamza
authors.initials: H
authors.lastname: Toumi
authors.forename: Nesrine
authors.initials: N
authors.lastname: Amiri
authors.forename: Mohamed Salah
authors.initials: MS
authors.lastname: Belkhiria
authors.forename: Jean-Claude
authors.initials: JC
authors.lastname: Daran
authors.forename: Habib
authors.initials: H
authors.lastname: Nasri