Article Sidebar
Published:
Sep 21, 2015Keywords:
Article Details
Copyright for articles published in this journal is retained by the journal.
SAJChem applies the Creative Commons Attribution (CC BY) license to manuscripts we publish. This license was developed to facilitate open access – namely, free immediate access to, and unrestricted reuse of, original works of all types. Under this license, authors agree to make articles legally available for reuse, without permission or fees, for virtually any purpose. Anyone may copy, distribute or reuse these articles, as long as the author and original source are properly cited.
Main Article Content
Rhenium(V) Complexes Containing Mono- and Tridentate Imido Ligands: Crystal Structures, Spectroscopic Results and DFT Optimization
Abstract
Rhenium(V) complexes containing the [ReX(PPh3)2]4+ (X = Br, I) moiety were studied. The reaction of N-(2-aminophenyl)salicylideneimine (H3pna) with trans-[ReOBr3(PPh3)2] produced the complex salt [Re(pna)Br(PPh3)2]0.5Br.0.5(ReO4) (1), in which the tridentate ligand pna is coordinated via a doubly deprotonated nitrogen (as an imide), an imino nitrogen and a deprotonated phenolate oxygen atom. The reaction of trans-[ReO(OEt)I2(PPh3)2] with two equivalents of 2-aminophenol (H3ap) in ethanol led to the isolation of the ‘2+1’ complex salt [Re(Hap)(H2ap)I(PPh3)2]I (2) in good yield. TheHapligand is coordinated monodentately via the doubly deprotonated imido nitrogen, and H2ap is chelated bidentately through the neutral amino nitrogen and a deprotonated phenolate oxygen atom. The crystal structures of 1 and 2 were determined by X-ray single crystal diffraction. Spectroscopic results and DFT calculations are also reported.
KEYWORDS: Rhenium(V), tridentate imido, ‘2 + 1’ coordination, X-ray crystal structures, DFT.
