title: Tri-μ-oxido-bis-[(5,10,15,20-tetra-phenyl-porphyrinato-κN)niobium(V)].
abstract: In the title dinuclear Nb(V) compound, [Nb(2)(C(44)H(28)N(4))(2)O(3)], each Nb atom is seven-coordinated with three bridging O atoms and four N atoms from a chelating tetra-phenyl-porphyrinate anion. The Nb-O bond lengths range from 1.757 (6) to 2.331 (6) Å, and the average (niobium-pyrrole N atom) distance is 2.239 Å. In the dinuclear mol-ecule, the Nb⋯Nb separation is 2.8200 (8) Å, and the dihedral angle between the two porphyrinate mean planes is 5.4 (1)°. Weak inter-molecular C-H⋯π inter-actions are present in the crystal structure.
authors.forename: Raoudha
authors.initials: R
authors.lastname: Soury
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