(Bu4N)[Re{NB(C6F5)3}Cl4(OH2)] – Struktur und EPR-Spektren

(Bu₄N)[Re{NB(C₆F₅)₃}Cl₄(OH₂)] – Structure and EPR Spectra The title compound represents the first structurally characterized rhenium(VI) complex with a bridging nitrido ligand. It has been prepared by the reaction of (Bu₄N)[ReNCl₄] with B(C₆F₅)₃ in CH₂Cl₂. An almost linear (170.5(3)°) nitrido bridge with a Re≡N bond length of 1.672(4) Å is formed. The coordination position trans to the multiple bond is occupied by a molecule of water. The EPR parameters of the title complex are reported and discussed with those of [ReNCl₄]^– concerning the spin-density distribution in the ‘‘ReNCl₄”︁”︁ unit.