Synthesis of Unprecedented 4d/4f-Polypnictogens

Overview

Journal Chemistry

Specialty Chemistry

Date 2020 Oct 3

PMID 33010187

Citations 5

Authors

Niklas Reinfandt

Christoph Schoo

Luis Dutsch

Ralf Koppe

Sergey N Konchenko

Manfred Scheer

Peter W Roesky

Affiliations

Soon will be listed here.

Abstract

A series of 4d/4f-polyarsenides, -polyarsines and -polystibines was obtained by reduction of the Mo-pnictide precursor complexes [{Cp Mo(CO) } (μ,η -E )] (E=As, Sb; Cp =tBu substituted cyclopentadienyl) with two different divalent samarocenes [Cp* Sm] and [(Cp ) Sm]. For the reductive conversion of the Mo-stibide only one product was isolated, featuring a planar tetrastibacyclobutadiene moiety as an unprecedented ligand for organometallic compounds. For the corresponding Mo-arsenide a tetraarsacyclobutadiene and a second species with a side-on coordinated As anion was isolated. The latter can be considered as reaction intermediate for the formation of the tetraarsacyclobutadiene.

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