Darstellung, Eigenschaften und Kristallstruktur von Rhenium(VII)-Nitridchlorid, ReNCl₄ / Preparation, Properties and Crystal Structure of Rhenium(VII) Nitride Chloride, ReNCl₄

Abstract

<jats:title>Abstract</jats:title><jats:p> Rhenium(VII) nitride chloride, ReNCl<jats:sub>4</jats:sub>, is prepared by the reaction of ReCl<jats:sub>5</jats:sub> with nitrogen trichloride. It forms metallic glazing, hygroscopic needles with an effective magnetic moment of 0.23 B.M. In the mass spectrum only the molecular ion ReNCl<jats:sub>4</jats:sub><jats:sup>⊕</jats:sup> is present, followed by ReNCl<jats:sub>3</jats:sub><jats:sup>⊕</jats:sup>. The crystal structure was determined by X-ray diffraction methods (space group Il, 265 independent reflexions, R = 0.071). The structure consists of ReNCl<jats:sub>4</jats:sub> units, which are linked by strongly alternated Re ≡ N-Re chains with different bond lengths of r Re ≡ N = 158 pm and r Re-N = 248 pm. The structure is very similar to that of WOCl<jats:sub>4</jats:sub>.</jats:p>

Magnetic assemblies based on Mn(III) salen analogues

“…13), where bond distances of Mn N and N Mn* are 1.520(3) and 2.528(3)Å, respectively [83]. Such polymeric nitrido-metal complexes have been observed for V, Mo, W, and Re [84][85][86][87][88]. However, this is the first report of the 1D chain form of Mn(V) N. The nitrido-Mn(V) complexes are diamagnetic due to the formation of frontier orbitals between d-orbitals of Mn(V) ion and p-orbitals of nitrogen [29,31,89].…”

Heterometallic Cube‐Type Molecular Nitrides

“…[3,4,28] Alternatively, the asymmetric nitrido bridges feature localization of the triple bond while the long metal-nitrogen bond is usually a donor-acceptor N→ [M] interaction. This asymmetric bridge is found in many structures of oligomeric or polymeric homometallic nitrido compounds such as [{MoCl3(-N)}4] [29] and [{ReCl4(-N)}∞] [30] .…”

(PPh4)2[Cl2Re(N3S2)(μ-NSN)(μ-N≡ReCl3)]2 - ein Rhenium(VII)-Komplex mit einer Nitrido-, einer Dinitridosulfato(II)- und einer Rhena-3,5-dithia-2,4,6-triazino-Funktion

“…[6]. [Cl 4 Re VII (NSCl) 2 ] ± NSiMe 3 3 À3 ClSiMe3 [9], in der alternierend lange ReºN±ReºN-Absta È nde von 158 und 248 pm beobachtet werden. Die Rhenium-Atome Re(1, 2) der asymmetrischen Einheit in 1 sind einerseits u È ber die N-Atome der (NSN) 4± -Bru È cke, andererseits u È ber das Nitrid±Stickstoff-Atom N(6) unter Bildung eines nahezu planaren Sechsringes (Ebene B) verbunden.…”