Year-end Sale % OFF 
Abstract
The reaction of {Ar′Fe(μ-Br)}2 (Ar′ = C6H3-2,6-(C6H3-2,6-iPr2)2) with LiC≡CPh afforded the unusual 1,3-butadiene-1,4-diyl Fe(I)-coupled derivative Fe2{Ar′C═C(Ph)-C(Ph)═CAr′} (1), whereas the reaction of {Ar′Fe(μ-Br)}2 with LiC≡CtBu yielded the monomeric Fe(II) “ate” complex Ar′Fe(C≡CtBu)2{Li(THF)2} (2). Complexes 1 and 2 were characterized by X-ray crystallography, NMR, and UV−vis spectroscopy and magnetic measurements. In 1 the dimeric structure is a result of Ar′ group transfer to the iron-bound carbon of the acetylide ligand and subsequent dimerization via coupling of the phenyl-substituted carbons. The irons are antiferromagnetically coupled, and the iron−iron separation is 2.5559(3) Ǻ. In 2 the high-spin iron atom has distorted trigonal-planar coordination with a THF-complexed lithium ion associated with the Ar′Fe(C≡CtBu)2 anion via interactions with the tBu-substituted alkyne carbons.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
