A5007266295- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Organoboron and organosilicon chemistry
- Crystallography and molecular interactions
- Synthesis and characterization of novel inorganic/organometallic compounds
- Organometallic Complex Synthesis and Catalysis
- Coordination Chemistry and Organometallics
- Catalytic Cross-Coupling Reactions
- N-Heterocyclic Carbenes in Organic and Inorganic Chemistry
- Boron Compounds in Chemistry
- Inorganic Chemistry and Materials
- Molecular Sensors and Ion Detection
- Carbon dioxide utilization in catalysis
- Asymmetric Hydrogenation and Catalysis
- Inorganic Fluorides and Related Compounds
- Luminescence and Fluorescent Materials
- Hydrogen Storage and Materials
- Fluorine in Organic Chemistry
- Radioactive element chemistry and processing
- Chemical Synthesis and Characterization
- Inorganic and Organometallic Chemistry
- Synthetic Organic Chemistry Methods
- Metal complexes synthesis and properties
- Catalytic C–H Functionalization Methods
- CO2 Reduction Techniques and Catalysts
University of Oxford
2016-2025
Oxford Research Group
2024
University of British Columbia
2023
University of Bologna
2023
Uppsala University
2023
Korea Advanced Institute of Science and Technology
2023
Royal Society of Chemistry
2023
Nanjing University
2023
University of Toronto
2023
École Polytechnique Fédérale de Lausanne
2023
Simple two-coordinate acyclic silylenes, SiR(2), have hitherto been identified only as transient intermediates or thermally labile species. By making use of the strong σ-donor properties and high steric loading B(NDippCH)(2) substituent (Dipp = 2,6-(i)Pr(2)C(6)H(3)), an isolable monomeric species, Si{B(NDippCH)(2)}{N(SiMe(3))Dipp}, can be synthesized which is stable in solid state up to 130 °C. This silylene species undergoes facile oxidative addition reactions with dihydrogen (at...
The activation of C—C bonds is fundamental interest in the construction complex molecules from petrochemical feedstocks. In case archetypal aromatic hydrocarbon benzene, cleavage thermodynamically disfavored, and brought about only by transient highly reactive species generated situ. Here we show that oxidative addition bond benzene an isolated metal not possible, but occurs at room temperature reversibly a single aluminium center [(NON)Al]− (where NON =...
The complex diberyllocene, CpBeBeCp (Cp, cyclopentadienyl anion), has been the subject of numerous chemical investigations over past five decades yet eluded experimental characterization. We report preparation and isolation compound by reduction beryllocene (BeCp2) with a dimeric magnesium(I) determination its structure in solid state means x-ray crystallography. Diberyllocene acts as reductant reactions that form beryllium-aluminum beryllium-zinc bonds. Quantum calculations indicate...
All fluorochemicals—including elemental fluorine and nucleophilic, electrophilic, radical fluorinating reagents—are prepared from hydrogen fluoride (HF). This highly toxic corrosive gas is produced by the reaction of acid-grade fluorspar (>97% CaF 2 ) with sulfuric acid under harsh conditions. The use to produce fluorochemicals via a process that bypasses HF desirable but remains an unsolved problem because prohibitive insolubility . Inspired calcium phosphate biomineralization, we herein...
Owing to its high toxicity, the chemistry of element number four, beryllium, is poorly understood. However, as lightest elements provide basis for fundamental models chemical bonding, there a need greater insight into properties beryllium. In this context, homo-elemental Be-Be bond interest. Here ligand metathesis diberyllocene (1; CpBeBeCp)-a stable complex with bond-has been investigated. These studies yield two complexes bonds: Cp*BeBeCp (2) and [K{(HCDippN)
By employing strongly σ-donating boryl ancillary ligands, the oxidative addition of H2 to a single site Sn(II) system has been achieved for first time, generating (boryl)2SnH2. Similar chemistry can also be protic and hydridic E-H bonds (N-H/O-H, Si-H/B-H, respectively). In case ammonia (and water, albeit more slowly), shown followed by reductive elimination give an N- (or O-)borylated product. Thus, in stoichiometric fashion, redox-based bond cleavage/formation is demonstrated main group...
Si in sight: A one-pot, single-step synthesis of an acyclic silylsilylene, Si{Si(SiMe3)3}{N(SiMe3)Dipp} (Dipp=2,6-iPr2C6H3), from a silicon(IV) starting material is reported, together with evidence for mechanism involving alkali metal silylenoid intermediates.
A single-component ambiphilic system capable of the cooperative activation protic, hydridic and apolar HX bonds across a Group 13 metal/activated β-diketiminato (Nacnac) ligand framework is reported. The hydride complex derived from H2 shown to be competent catalyst for highly selective reduction CO2 methanol derivative. To our knowledge, this process represents first example type catalyzed by molecular gallium complex.
Abstract The synthesis of a phosphorus(III) compound bearing N , ‐bis(3,5‐di‐ tert ‐butyl‐2‐phenoxy)amide ligand is reported. This species has been found to react with ammonia and water, activating the EH bonds in both substrates by formal oxidative addition afford corresponding phosphorus(V) compounds. In case OH can be activated, splitting molecule into its constituent elements. To our knowledge, this first example based on main group elements that sequentially activates water manner.
Chloride abstraction from the group 9 metal bis(N-heterocyclic carbene) complexes M(NHC)(2)(H)(2)Cl [M = Rh, Ir; NHC IPr N,N'-bis(2,6-diisopropylphenyl)imidazol-2-ylidene or IMes N,N'-bis(2,4,6-trimethylphenyl)imidazol-2-ylidene] leads to formation of highly reactive cationic species capable dehydrogenation saturated CC and BN linkages. Thus, reaction Ir(IPr)(2)(H)(2)Cl (1) with Na[BAr(f)(4)] in fluorobenzene generates [Ir(IPr)(2)(H)(2)](+)[BAr(f)(4)](-) (4) which iridium center is...
In the ten years since first examples of terminal borylene complexes were reported, rapid advances in chemistry this ligand class have been made, and parallels emerged with classical organometallic systems (such as carbenes, vinylidenes even CO) well other subvalent main group systems. This article reviews key developments synthetic, structural reaction chemistry, particular attention focusing on recent discoveries field.
CoCo loco! Ligand-bridged dimers (see picture) with the shortest known Co–Co interactions are first amidinato and guanidinato cobalt(I) complexes. The nature of has been probed by magnetic theoretical investigations, shown to be multiconfigurational. Preliminary reactivity studies complexes have also carried out. Detailed facts importance specialist readers published as ”Supporting Information”. Such documents peer-reviewed, but not copy-edited or typeset. They made available submitted...
Abstract A series of new germylene compounds has been synthesized offering systematic variation in the σ‐ and π‐capabilities α‐substituent differing levels reactivity towards E−H bond activation (E=H, B, C, N, Si, Ge). Chloride metathesis utilizing [(terphenyl)GeCl] proves to be an effective synthetic route complexes type [(terphenyl)Ge(ER n )] ( 1 – 6 : ER =NHDipp, CH(SiMe 3 ) 2 , P(SiMe Si(SiMe or B(NDippCH) ; terphenyl=C H Mes ‐2,6=Ar C Dipp Dipp=C i Pr ‐2,6, Mes=C Me ‐2,4,6), while...
An extremely bulky boryl-amide ligand, [N(SiMe3){B(DAB)}](-) (TBoN; DAB = (DipNCH)2, Dip C6H3Pr(i)2-2,6), has been utilised in the preparation of first isolable, two-coordinate acyclic diaminosilylene (ADASi), viz. :Si(TBoN)2. This is shown to have a frontier orbital energy separation, and presumed level reactivity, intermediate between those two classes previously reported isolable two-coordinate, silylenes.
Anionic molecular imide complexes of aluminium are accessible via a rational synthetic approach involving the reactions organo azides with potassium aluminyl reagent. In case K2 [(NON)Al(NDipp)]2 (NON=4,5-bis(2,6-diisopropylanilido)-2,7-di-tert-butyl-9,9-dimethyl-xanthene; Dipp=2,6-diisopropylphenyl) structural characterization by X-ray crystallography reveals short Al-N distance, which is thought primarily to be due low coordinate nature nitrogen centre. The unit highly polar, and capable...
Aluminium oxides constitute an important class of inorganic compound that are widely exploited in the chemical industry as catalysts and catalyst supports. Due to tendency for such systems aggregate via Al-O-Al bridges, synthesis well-defined, soluble, molecular models these materials is challenging. Here we show reactions potassium aluminyl complex K2 [(NON)Al]2 (NON=4,5-bis(2,6-diiso-propylanilido)-2,7-di-tert-butyl-9,9-dimethylxanthene) with CO2 , PhNCO N2 O all proceed a common aluminium...