Showing papers by "Peter S. White published in 2015"
TL;DR: In this paper, neutral nickel methyl complexes incorporating 2,8-diarylnaphthyl groups have been synthesized and characterized for the polymerization of ethylene capable of producing lightly branched ultrahigh-molecular-weight polyethylene (UHMWPE).
Abstract: Neutral nickel methyl complexes incorporating 2,8-diarylnaphthyl groups have been synthesized and characterized Salicylaldiminato nickel systems 1a,b are exceptionally active neutral nickel single component catalysts for the polymerization of ethylene capable of producing lightly branched ultrahigh-molecular-weight polyethylene (UHMWPE) In addition, complex 1a shows a “quasi-living” polymerization behavior
87 citations
TL;DR: Rhodium(Cp*) and iridium(cp*) complexes with bidentate ligands and a coordinated oxygen atom transfer reagent, 2-tert-butylsulfonyliodosylbenzene (sPhIO), were described in this article.
12 citations
TL;DR: In this paper, a series of Pt(IV) carbene complexes of the form [(Tp')Pt(=C(X)(Y))(Me)2]+ (Tp'Pt'=hydridotris(3,5-dimethylpyrazolyl)borate) was synthesized.
12 citations
TL;DR: In this article, Nitrene transfer to an iridium(Cp*) complex with a pyridyl-amide bidentate ligand drives an unexpected outer-sphere C-H activation and amide functionalization reaction mediated by this metal center.
2 citations
TL;DR: In this paper, the synthesis of tungsten(IV) bromide compounds via oxidation of W(CO)6 is simple and provides better yields than previously reported methods, and this synthetic route also has many advantages over the syntheses of similar Tungsten (IV) chloride compounds which involve reduction of WCl6.
Abstract: Convenient synthetic routes to the compounds WBr4 (1), WBr4(MeCN)2 (2), WBr4(THF)2 (3), WBr4(PPh3)2 (4), WBr4(bpy) (6), and WBr4(dppe) (7) are described via the solution-phase oxidation of W(CO)6 using two equivalents of bromine. These one-pot syntheses use inexpensive and readily available starting materials and produce analytically pure compounds with high yields under mild conditions. Attempts to grow crystals of 1 by heating in a sealed tube at ~200 °C resulted in formation of the previously reported compound WOBr4. Attempts to recrystallize 4 from dichloromethane solution produced [HPPh3]2[WBr6] (5). X-ray crystallographic studies showed that 5 consists of an array of [WBr6]2− anions and [HPPh3]+ cations and that 7·CH2Cl2 has the expected six-coordinate tungsten center. The synthesis of tungsten(IV) bromide compounds via oxidation of W(CO)6 is simple and provides better yields than previously reported methods. This synthetic route also has many advantages over the syntheses of similar tungsten(IV) chloride compounds which involve reduction of WCl6.