Anthony F. Hill | |
---|---|
Alma mater | University of Bayreuth University of Auckland |
Scientific career | |
Fields | Organometallic chemistry |
Institutions | University of Bristol (1986-1988) University of Warwick (1988-1991) ContentsAustralian National University (2001-) [1] |
Website | chemistry |
Anthony F. Hill is a Professor of Chemistry at the Research School of Chemistry of the Australian National University. [1] He specializes in synthetic, organometallic and coordination chemistry. [2] He is the author of a textbook on the subject of the organometallic chemistry of the transition metals [3] and since 1995 has been an editor of the scientific journal/book series Advances in Organometallic Chemistry . [4] He is a fellow of the Royal Society of Chemistry. [2]
Hill graduated from the University of Auckland with a Master of Science (Honours) and was awarded the title of Dr. rer. nat. from the University of Bayreuth for his doctoral thesis. [1]
Prior to being appointed to the position of Professor at the Research School of Chemistry in 2001, Hill held positions at Imperial College (1992–2000), the University of Warwick (1988–1991) and the University of Bristol (1986–1988). [1] At the Research School of Chemistry, Hill is the leader of the 'Synthetic Organometallic and Coordination Chemistry' group [5] and teaches an undergraduate organometallic chemistry course. [6]
Tony Hill's research interests investigate the nature of metal carbon bonding and endeavor to develop an understanding of the interaction of carbon with transition and main group metals. [1] The organometallic chemistry of complexes of transition metals with poly(methimazolyl)borato and other related ligands has in recent time been the subject of much of Tony Hill's work. One of Tony Hill's special topics is the chemistry (and synthesis of) the metallaboratranes. Using iridium, [7] platinum, osmium, [8] rhodium, [9] and ruthenium and other transition metals Tony Hill has been able to form compounds containing metal boron bonds.[ citation needed ]
As of May 2010, Hill has authored more than 220 scientific journal articles most of which relate to the field of organometallic chemistry. [2]
In 1986, with Prof. Dr. Max Herberhold at the University of Bayreuth, Hill published the first account of complex containing an unsubstituted sulfine. [10]
Hill has recently published several papers concerning the nature of carbo-borane and ruthenium-borane interactions. Most recently, Caldwell and Cordiner collaborated with Hill on a paper entitled "Phosphino and phosphonito carbyne complexes" [11]
Hill is author of a textbook entitled Organotransition Metal Chemistry. [3]
Oxidative addition and reductive elimination are two important and related classes of reactions in organometallic chemistry. Oxidative addition is a process that increases both the oxidation state and coordination number of a metal centre. Oxidative addition is often a step in catalytic cycles, in conjunction with its reverse reaction, reductive elimination.
In coordination chemistry, the term scorpionate ligand refers to a tridentate (three-donor-site) ligand which would bind to a metal in a fac manner. The most popular class of scorpionates are the hydrotris(pyrazolyl)borates or Tp ligands. These were also the first to become popular. These ligands first appeared in journals in 1966 from the then little-known DuPont chemist of Ukrainian descent, Swiatoslaw Trofimenko. Trofimenko called this discovery "a new and fertile field of remarkable scope".
Wilkinson's catalyst is the common name for chloridotris(triphenylphosphine)rhodium(I), a coordination complex of rhodium with the formula [RhCl(PPh3)3] (Ph = phenyl). It is a red-brown colored solid that is soluble in hydrocarbon solvents such as benzene, and more so in tetrahydrofuran or chlorinated solvents such as dichloromethane. The compound is widely used as a catalyst for hydrogenation of alkenes. It is named after chemist and Nobel laureate Sir Geoffrey Wilkinson, who first popularized its use.
Rhodium(III) chloride refers to inorganic compounds with the formula RhCl3(H2O)n, where n varies from 0 to 3. These are diamagnetic solids featuring octahedral Rh(III) centres. Depending on the value of n, the material is either a dense brown solid or a soluble reddish salt. The soluble trihydrated (n = 3) salt is widely used to prepare compounds used in homogeneous catalysis, notably for the industrial production of acetic acid and hydroformylation.
Transition metal hydrides are chemical compounds containing a transition metal bonded to hydrogen. Most transition metals form hydride complexes and some are significant in various catalytic and synthetic reactions. The term "hydride" is used loosely: some of them are acidic (e.g., H2Fe(CO)4), whereas some others are hydridic, having H−-like character (e.g., ZnH2).
James P. Collman is an American chemist who is the George A. and Hilda M. Daubert Professor of Chemistry, Emeritus at Stanford University. Collman's research focused on organometallic bioinorganic chemistry. Collman is a member of the National Academy of Sciences.
Organorhodium chemistry is the chemistry of organometallic compounds containing a rhodium-carbon chemical bond, and the study of rhodium and rhodium compounds as catalysts in organic reactions.
Iron tetracarbonyl dihydride is the organometallic compound with the formula H2Fe(CO)4. This compound was the first transition metal hydride discovered. The complex is stable at low temperatures but decomposes rapidly at temperatures above –20 °C.
Rhodocene is a chemical compound with the formula [Rh(C5H5)2]. Each molecule contains an atom of rhodium bound between two planar aromatic systems of five carbon atoms known as cyclopentadienyl rings in a sandwich arrangement. It is an organometallic compound as it has (haptic) covalent rhodium–carbon bonds. The [Rh(C5H5)2] radical is found above 150 °C (302 °F) or when trapped by cooling to liquid nitrogen temperatures (−196 °C [−321 °F]). At room temperature, pairs of these radicals join via their cyclopentadienyl rings to form a dimer, a yellow solid.
Transition metal carbyne complexes are organometallic compounds with a triple bond between carbon and the transition metal. This triple bond consists of a σ-bond and two π-bonds. The HOMO of the carbyne ligand interacts with the LUMO of the metal to create the σ-bond. The two π-bonds are formed when the two HOMO orbitals of the metal back-donate to the LUMO of the carbyne. They are also called metal alkylidynes—the carbon is a carbyne ligand. Such compounds are useful in organic synthesis of alkynes and nitriles. They have been the focus on much fundamental research.
In organometallic chemistry, metal sulfur dioxide complexes are complexes that contain sulfur dioxide, SO2, bonded to a transition metal. Such compounds are common but are mainly of theoretical interest. Historically, the study of these compounds has provided insights into the mechanisms of migratory insertion reactions.
In chemistry, metal-catalysed hydroboration is a reaction used in organic synthesis. It is one of several examples of homogeneous catalysis.
A metal-phosphine complex is a In coordination complex containing one or more phosphine ligands. Almost always, the phosphine is an organophosphine of the type R3P (R = alkyl, aryl). Metal phosphine complexes are useful in homogeneous catalysis. Prominent examples of metal phosphine complexes include Wilkinson's catalyst (Rh(PPh3)3Cl), Grubbs' catalyst, and tetrakis(triphenylphosphine)palladium(0).
A metal-centered cycloaddition is a subtype of the more general class of cycloaddition reactions. In such reactions "two or more unsaturated molecules unite directly to form a ring", incorporating a metal bonded to one or more of the molecules. Cycloadditions involving metal centers are a staple of organic and organometallic chemistry, and are involved in many industrially-valuable synthetic processes.
Warren Richard Roper FRS FRSNZ FNZIC is a New Zealand chemist and Emeritus Professor at the University of Auckland.
In organometallic chemistry, a transition metal alkyne complex is a coordination compound containing one or more alkyne ligands. Such compounds are intermediates in many catalytic reactions that convert alkynes to other organic products, e.g. hydrogenation and trimerization.
Transition-metal allyl complexes are coordination complexes with allyl and its derivatives as ligands. Allyl is the radical with the connectivity CH2CHCH2, although as a ligand it is usually viewed as an allyl anion CH2=CH−CH2−, which is usually described as two equivalent resonance structures.
A transition metal phosphido complex is a coordination complex containing a phosphido ligand (R2P, where R = H, organic substituent). With two lone pairs on phosphorus, the phosphido anion (R2P−) is comparable to an amido anion (R2N−), except that the M-P distances are longer and the phosphorus atom is more sterically accessible. For these reasons, phosphido is often a bridging ligand. The -PH2 ion or ligand is also called phosphanide or phosphido ligand.
Transition metal pyridine complexes encompass many coordination complexes that contain pyridine as a ligand. Most examples are mixed-ligand complexes. Many variants of pyridine are also known to coordinate to metal ions, such as the methylpyridines, quinolines, and more complex rings.
Transition metal acyl complexes describes organometallic complexes containing one or more acyl (RCO) ligands. Such compounds occur as transient intermediates in many industrially useful reactions, especially carbonylations.