Repozytorium
Wyszukaj
Kolekcje
Inne
Water-controlled reactions selectivity of the ReOCl3(OPPh3)(Sme2) synthon with a hydrophosphorane ligand.
Autorzy
Rok wydania
2009
Czasopismo
Numer woluminu
362
Strony
5245-5251
DOI
10.1016/j.ica.2009.09.047
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
The reaction of the hydrospirophosphorane HP(OCMe2CMe2O)2 ligand or the five-membered cyclic hydrogen phosphonate HP(O)(OCMe2CMe2O) ligand with the ReOCl3(OPPh3)(SMe2) precursor under controlled reaction conditions led to the isolation of dimeric oxo-rhenium(V) complexes containing P(O)(OCMe2CMe2O)− moieties, represented by [ReOCl2{μ-OP(OCMe2CMe2O)}3ReOCl(OPPh3)] (1) and [ReOCl2(SMe2){μ-OP(OCMe2CMe2O)}]2 (2). The chemical composition of these complexes was established by means of NMR, IR spectroscopic methods, and based on analytical data. The relative stereochemistry of 1 and 2 was unambiguously determined by single X-ray diffraction studies. The crystal structure of 1 comprises two crystallographically independent molecules in an asymmetric unit and co-crystallised molecules of both dichloromethane and acetonitrile. Two different six-coordinated monomeric subunits, ReOCl2 and ReOCl(OPPh3), connected by three phosphonate bridges, build up the dinuclear complex 1. It exhibits an uncommon feature, a cis disposition of the triphenylphosphine oxide molecule relative to the terminal ReO bond. The crystal structure of 2 includes four molecules, in which two equivalent rhenium subunits ReOCl2(SMe2) are linked by two P(O)(OCMe2CMe2O)− bridges.
Słowa kluczowe
Hydrophosphoranes, Rhenium chemistry, X-ray diffraction
Adres publiczny
https://doi.org/10.1016/j.ica.2009.09.047
Strona internetowa wydawcy
Podobne publikacje
Reduction of rhenates (VII) with hydrogen chloride in alcohols: the structural aspects of the trans -tetrachloridomethoxidooxidorhenate(VI) products.
Hołyńska Małgorzata, Dehnen Stefane, Weigend Florian, Lis Tadeusz