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Synthesis of Unprecedented 4d/4f‐Polypnictogens
Author(s) -
Reinfandt Niklas,
Schoo Christoph,
Dütsch Luis,
Köppe Ralf,
Konchenko Sergey N.,
Scheer Manfred,
Roesky Peter W.
Publication year - 2021
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.202003905
Subject(s) - cyclopentadienyl complex , pnictogen , moiety , chemistry , divalent , ligand (biochemistry) , stereochemistry , ion , medicinal chemistry , crystallography , catalysis , physics , organic chemistry , receptor , biochemistry , superconductivity , quantum mechanics
A series of 4d/4f‐polyarsenides, ‐polyarsines and ‐polystibines was obtained by reduction of the Mo‐pnictide precursor complexes [{Cp t Mo(CO) 2 } 2 ( μ , η 2:2 ‐E 2 )] (E=As, Sb; Cp t = t Bu substituted cyclopentadienyl) with two different divalent samarocenes [Cp* 2 Sm] and [(Cp Me4nPr ) 2 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 2 2− anion was isolated. The latter can be considered as reaction intermediate for the formation of the tetraarsacyclobutadiene.