Network


Latest external collaboration on country level. Dive into details by clicking on the dots.

Hotspot


Dive into the research topics where Anna-Marie Fuller is active.

Publication


Featured researches published by Anna-Marie Fuller.


Chemical Communications | 2008

Mononuclear Ti[triple bond]N complexes formed by the facile multiple deprotonation of H3N x B(C6F5)3: the importance of chloride ligands.

Anna-Marie Fuller; William Clegg; Ross W. Harrington; David L. Hughes; Simon J. Lancaster

The crystalline ion-pair [TiCl(NMe(2))(2)(NMe(2)H)(2)](+)[TiCl(2){NB(C(6)F(5))(3)}(NMe(2)H)(2)](-), in which the anion has a triply bonded nitridoborate ligand, is formed through the multiple activation of H(3)N x B(C(6)F(5))(3) when treated with [Ti(NMe(2))(3)Cl].


Chemistry: A European Journal | 2013

Highly Active, Thermally Stable, Ethylene-Polymerisation Pre-Catalysts Based on Niobium/TantalumImine Systems

Carl Redshaw; Mark J. Walton; Lucy Clowes; David L. Hughes; Anna-Marie Fuller; Yimin Chao; Alex S. Walton; Victor Sumerin; Pertti Elo; Igor E. Soshnikov; Weizhen Zhao; Wen-Hua Sun

The reactions of MCl5 or MOCl3 with imidazole-based pro-ligand L(1)H, 3,5-tBu2-2-OH-C6H2-(4,5-Ph2-1H-)imidazole, or oxazole-based ligand L(2)H, 3,5-tBu2-2-OH-C6H2 (1H-phenanthro[9,10-d])oxazole, following work-up, afforded octahedral complexes [MX(L(1,2))], where MX=NbCl4 (L(1), 1a; L(2), 2a), [NbOCl2(NCMe)] (L(1), 1b; L(2), 2b), TaCl4 (L(1), 1c; L(2), 2c), or [TaOCl2(NCMe)] (L(1), 1d). The treatment of α-diimine ligand L(3), (2,6-iPr2C6H3N=CH)2, with [MCl4(thf)2] (M=Nb, Ta) afforded [MCl4(L(3))] (M=Nb, 3a; Ta, 3b). The reaction of [MCl3(dme)] (dme=1,2-dimethoxyethane; M=Nb, Ta) with bis(imino)pyridine ligand L(4), 2,6-[2,6-iPr2C6H3N=(Me)C]2C5H3N, afforded known complexes of the type [MCl3(L(4))] (M=Nb, 4a; Ta, 4b), whereas the reaction of 2-acetyl-6-iminopyridine ligand L(5), 2-[2,6-iPr2C6H3N=(Me)C]-6-Ac-C5H3N, with the niobium precursor afforded the coupled product [({2-Ac-6-(2,6-iPr2C6H3N=(Me)C)C5H3N}NbOCl2)2] (5). The reaction of MCl5 with Schiff-base pro-ligands L(6)H-L(10)H, 3,5-(R(1))2-2-OH-C6H2CH=N(2-OR(2)-C6H4), (L(6)H: R(1)=tBu, R(2)=Ph; L(7)H: R(1)=tBu, R(2)=Me; L(8)H: R(1)=Cl, R(2)=Ph; L(9)H: R(1)=Cl, R(2)=Me; L(10)H: R(1)=Cl, R(2)=CF3) afforded [MCl4(L(6-10))] complexes (M=Nb, 6a-10a; M=Ta, 6b-9b). In the case of compound 8b, the corresponding zwitterion was also synthesised, namely [Ta(-)Cl5(L(8)H)(+)]·MeCN (8c). Unexpectedly, the reaction of L(7)H with TaCl5 at reflux in toluene led to the removal of the methyl group and the formation of trichloride 7c [TaCl3(L(7-Me))]; conducting the reaction at room temperature led to the formation of the expected methoxy compound (7b). Upon activation with methylaluminoxane (MAO), these complexes displayed poor activities for the homogeneous polymerisation of ethylene. However, the use of chloroalkylaluminium reagents, such as dimethylaluminium chloride (DMAC) and methylaluminium dichloride (MADC), as co-catalysts in the presence of the reactivator ethyl trichloroacetate (ETA) generated thermally stable catalysts with, in the case of niobium, catalytic activities that were two orders of magnitude higher than those previously observed. The effects of steric hindrance and electronic configuration on the polymerisation activity of these tantalum and niobium pre-catalysts were investigated. Spectroscopic studies ((1)H NMR, (13)C NMR and (1)H-(1)H and (1)H-(13)C correlations) on the reactions of compounds 4a/4b with either MAO(50) or AlMe3/[CPh3](+)[B(C6F5)4](-) were consistent with the formation of a diamagnetic cation of the form [L(4)AlMe2](+) (MAO(50) is the product of the vacuum distillation of commercial MAO at +50 °C and contains only 1 mol% of Al in the form of free AlMe3). In the presence of MAO, this cationic aluminium complex was not capable of initiating the ROMP (ring opening metathesis polymerisation) of norbornene, whereas the 4a/4b systems with MAO(50) were active. A parallel pressure reactor (PPR)-based homogeneous polymerisation screening by using pre-catalysts 1b, 1c, 2a, 3a and 6a, in combination with MAO, revealed only moderate-to-good activities for the homo-polymerisation of ethylene and the co-polymerisation of ethylene/1-hexene. The molecular structures are reported for complexes 1a-1c, 2b, 5, 6a, 6b, 7a, 8a and 8c.


Organometallics | 2010

Synthesis and Structure of the Dimethyl Sulfide Adducts of Mono- and Bis(pentafluorophenyl)borane

Anna-Marie Fuller; David L. Hughes; Simon J. Lancaster; Callum M. White


Inorganic Chemistry | 2009

Synthesis, structure, and stability of adducts between phosphide and amide anions and the Lewis acids borane, tris(pentafluorophenyl)borane, and tris(pentafluorophenyl)alane

Anna-Marie Fuller; Andrew J. Mountford; Matthew L. Scott; Simon J. Coles; Peter N. Horton; David L. Hughes; Michael B. Hursthouse; Simon J. Lancaster


Dalton Transactions | 2008

The synthesis, molecular structure and supramolecular architecture of complexes between the ammonia adduct of tris(pentafluorophenyl)boron and a series of mono and polydentate hydrogen-bond acceptors

Anna-Marie Fuller; Andrew J. Mountford; Simon J. Coles; Peter N. Horton; David L. Hughes; Michael B. Hursthouse; Louise Male; Simon J. Lancaster


Dalton Transactions | 2013

New structural motifs in lithium and zinc calix[4]arene chemistry

Carl Redshaw; Oliver Rowe; David L. Hughes; Anna-Marie Fuller; Ilich A. Ibarra; Simon M. Humphrey


Dalton Transactions | 2012

The structure and chemistry of tris(pentafluorophenyl)borane protected mononuclear nitridotitanium complexes

Anna-Marie Fuller; David L. Hughes; Garth A. Jones; Simon J. Lancaster


Chemical Communications | 2011

The hafnium-mediated NH activation of an amido-borane

Elizabeth A. Jacobs; Anna-Marie Fuller; Simon J. Lancaster; Joseph A. Wright


Dalton Transactions | 2011

Tris(pyrazolyl)borate amidoborane complexes of the group 4 metals

Anna-Marie Fuller; David L. Hughes; Simon J. Lancaster


Chemical Communications | 2008

Mononuclear Ti N complexes formed by the facile multiple deprotonation of H3N·B(C6F5)3: the importance of chloride ligands

Anna-Marie Fuller; William Clegg; Ross W. Harrington; David L. Hughes; Simon J. Lancaster

Collaboration


Dive into the Anna-Marie Fuller's collaboration.

Top Co-Authors

Avatar

David L. Hughes

University of East Anglia

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar

Peter N. Horton

University of Southampton

View shared research outputs
Top Co-Authors

Avatar

Simon J. Coles

University of Southampton

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar

Callum M. White

University of East Anglia

View shared research outputs
Top Co-Authors

Avatar
Researchain Logo
Decentralizing Knowledge