A5081517000- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Crystallography and molecular interactions
- Supramolecular Chemistry and Complexes
- Molecular Sensors and Ion Detection
- Magnetism in coordination complexes
- Lanthanide and Transition Metal Complexes
- Metal complexes synthesis and properties
- Crystal structures of chemical compounds
- Organometallic Complex Synthesis and Catalysis
- Metal-Organic Frameworks: Synthesis and Applications
- Radioactive element chemistry and processing
- Luminescence and Fluorescent Materials
- Solid-state spectroscopy and crystallography
- Crystal Structures and Properties
- Synthesis and Reactivity of Sulfur-Containing Compounds
- Molecular Spectroscopy and Structure
- N-Heterocyclic Carbenes in Organic and Inorganic Chemistry
- Astrophysics and Star Formation Studies
- Porphyrin and Phthalocyanine Chemistry
- Molecular Junctions and Nanostructures
- Organophosphorus compounds synthesis
- Asymmetric Hydrogenation and Catalysis
- Fullerene Chemistry and Applications
- Asymmetric Synthesis and Catalysis
The University of Western Australia
2016-2025
Crawley Hospital
2014-2020
Curtin University
2020
University of Malaya
2019
Hospital Kuala Lumpur
2019
Western Australian Museum
2019
Lukoil (Russia)
2018
Character
2014-2017
University of Gonabad
2010
University of Sistan and Baluchestan
2009
Developing molecular circuits that can function as the active components in electrical devices is an ongoing challenge electronics. It demands mechanical stability of single-molecule circuit while simultaneously being responsive to external stimuli mimicking operation conventional electronic components. Here, we report based on spiropyran derivatives respond electrically chemical and stimuli. The merocyanine results from protonation/ring-opening form showed diode characteristics, with...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthetic, Structural, and Spectroscopic Studies on Solids Containing Tris(dipicolinato) Rare Earth Anions Transition or Main Group Metal CationsPhilippa A. Brayshaw, Jean-Claude G. Buenzli, Pascal Froidevaux, Jack M. Harrowfield, Yang Kim, Alexander N. SobolevCite this: Inorg. Chem. 1995, 34, 8, 2068–2076Publication Date (Print):April 1, 1995Publication History Published online1 May 2002Published inissue 1 April...
The effect of para-substituents on the crystal packing phenols has been investigated, for systems bearing nonpolar groups (tert-butyl and benzyl, compounds 1 2, respectively) methylene linked bis-phenol polar nitro (compound 3). Remarkable asymmetric unit six molecules, which form infinite helical hydrogen bonded arrays in extended structures, whereas compound 3 coplanar with phenol rings forms almost columnar arrays. Hirshfeld surface analysis is used to show that despite a nearly identical...
Cristallisation dans Bb avec Z=16; affinement jusqu'a R=0,036. Quatre molecules independantes le cristal sont apparentees par des elements de supersymetrie selon un mode type paire. Comparaison une serie derives triaryl du groupe V
A novel refinement technique for X-ray diffraction data has been employed to derive SO bond orders in sulfur dioxide experimentally. The results show that ionic bonding dominates over hypervalency. Detailed facts of importance specialist readers are published as "Supporting Information". Such documents peer-reviewed, but not copy-edited or typeset. They made available submitted by the authors. Please note: publisher is responsible content functionality any supporting information supplied...
Together with the more intuitive and commonly recognized conductance mechanisms of charge-hopping tunneling, quantum-interference (QI) phenomena have been identified as important factors affecting charge transport through molecules. Consequently, establishing simple flexible molecular-design strategies to understand, control, exploit QI in molecular junctions poses an exciting challenge. Here we demonstrate that destructive quantum interference (DQI) meta-substituted phenylene ethylene-type...
The Australia Telescope Compact Array (ATCA) has been used to image class I methanol masers at 9.9, 25 (a series from J=2 J=9), 84, 95 and 104 GHz located in the vicinity of IRAS 16547-4247 (G343.12-0.06), a luminous young stellar object known harbour radio jet. detected maser emission consists cluster 6 spots spread over an area 30 arcsec. Five were only 84- 95-GHz transitions (for two 84-GHz detection is marginal), while sixth spot shows activity all 12 observed transitions. We report...
A new paradigm for the synthesis of 4′-pyridyl terpyridines using poly(ethyleneglycol) (PEG) as a benign reaction medium is described, with compounds readily accessible in high purity ca. 4 hours 'one pot' procedure. This method requires no product purification and affords desired reasonable yield without formation unwanted side products.
We study how uncertainties in the rate coefficients of chemical reactions RATE06 database affect abundances and column densities key molecules protoplanetary disks. randomly varied gas-phase reaction rates within their uncertainty limits calculated time-dependent using a gas-grain model flaring steady-state disk model. find that species can be separated into two distinct groups according to sensitivity uncertainties. The first group includes CO, C$^+$, H$_3^+$, H$_2$O, NH$_3$, N$_2$H$^+$,...
Abstract Herein we describe the design and preparation of inexpensive, air‐stable nickel phosphite‐based catalysts for use in CN cross‐coupling reaction. The combination tetrakis(triphenyl phosphite) {Ni[P(OPh) 3 ] 4 } 1,1′‐bis(diphenylphosphino)ferrocene (dppf), particular a newly developed catalyst (dppf)Ni[P(OPh) 2 , were found to be extremely effective catalyzing range amination reactions anilines amines with aryl chlorides. This new system offers an alternative...
The electronic structures of the prototypical bimetallic buta-1,3-diyn-1,4-diyl-bridged radical cation complexes [{M(dppe)Cp′}2(μ-C≡CC≡C)]+ (M= Fe, Cp′ = Cp* (1a), Cp (1b); M Ru, (2a), (2b)) have been (re)investigated using a combination UV–vis–NIR and IR spectroelectrochemistry, quantum chemical calculations based on both dispersion-corrected global (BLYP35-D3) local (Lh-SsirPW92-D3) hybrid functionals. Following analysis new existing data, including IR-active ν(C≡C) bands, iron compounds...
Large metal-oxo clusters consistently assume spherical or regular polyhedral morphologies rather than high-aspect-ratio structures. Access to elongated core structures has now been achieved by the reaction of lanthanoid salts with a tetrazole-functionalized calixarene in presence simple carboxylate co-ligand. The resulting Ln19 and Ln12 are constructed from apex-fused Ln5O6 trigonal bipyramids formed under range conditions reagent ratios. Altering co-ligand structure reliably controls...
The water-soluble calix[4]arene bearing p-substituted phosphonic acid groups is accessible in five steps overall 62 % yield, with the hydrogen-bonding prowess of acidic dominating its self-assembly processes. These include formation 3.0(3) nm and 20(2) nanorafts calixarene water using spinning disc processing, stabilized by acetonitrile, gas phase (<or=20 molecules). particles transform into prior to crystallization a compact bilayer, whereas presence large organic molecules gives an...
The crystal structures of an array 2-R,4-oxo-[1,3-b]-naphthodioxanes (R = H, Me, Et, i-Pr, n-Bu, CCl3, i-propylideneglyceral) have been determined at 100 K, together with a more limited series the isomeric 2-R,4-oxo-[1,3-a]-naphthodioxanes i-propylideneglyceral), permitting study effects substituent and ring fusion variation on packing neutral molecules that are otherwise essentially planar. We conducted analysis Hirshfeld surfaces (a definition outer contact surface molecule within crystal)...
The etiology of fungal pathogenesis grains is critical to global food security. large number orphan biosynthetic gene clusters uncovered in plant pathogen genome sequencing projects suggests that we have a significant knowledge gap about the secondary metabolite repertoires these pathogens and their roles pathogenesis. Cytochalasans are family natural products interest due ability bind actin interfere with cellular processes involved polymerization; however, our understanding biosynthesis...
Anhydrous lanthanoid metal chlorides LnCl3(thf)n (Ln = La, Ce, Nd, Sm, n 2; Ln Tb, Ho, 2·5; Dy, Tm, n= 2·7; Gd, Yb, Lu, 3; Er, 3·5) have been prepared in excellent yield by the direct reaction of powders with hexachloroethane tetrahydrofuran (thf), and Eu, 0·8; 1·7; Pr, 3) good except for EuCl3(thf)0·8 from bulk metal. [YbCl3(thf)2]2 was prolonged treatment solid YbCl3(thf)3 pentane. The X-ray crystal structures [LnC3(thf)2] Ce or Pr), [LnCl3(thf)3.5] Gd Er), [YbCl3(thf)3] [LaCl3(thf)(H2O)]...
Abstract Pristine fullerene C 60 has a fcc structure. Crystallisation of the in variety solvents can lead to inclusion complexes, as well discrete host–guest complexes presence cavitands and porphyrins, related molecules. The retain varying degrees ··· interactions at van der Waals limit, except limited number cases where fullerenes are completely shrouded by one or more included/host molecule. Analysis these reveals diverse structural arrangement fullerenes. They be organised into dimers,...
In the presence of lanthanide ions, a Co(III) sepulchrate cation [Co(diHOsar)]3+ and sodium p-sulfonatocalix[4]arene form 1:1 host-guest complex which is self-assembled into zeolite-like lattice network comprised parallel, single stranded helices.
An unsymmetrical bis(tridentate) ligand LH in which one binding site can be readily deprotonated forms a kinetically inert [Co(III)L(2)](+) complex used as "corner" species for the "Coupe du Roi" assembly of trans,trans-[Co(2)M(2)L(4)](6+) metallogrids (M = Fe(II), Co(II), Cu(II), Zn(II)). In mixed Co(III)/Co(II) species, oxidation states appear to localised. solution, octacationic, homometallic [2 × 2] grids with individual labile metal ions Zn(II), seemingly mixtures all possible isomers...
‘Short circuits’ to ancillary ligands in metal complex molecular wires are identified and ‘insulated wires’ presented.
Three new co-crystalline structures are reported that contain fullerene C60 with the under-represented Ni(II)-dibenzotetraaza[14]annulene derivative, (5,14-dihydro-6,8,15,17-tetrabenzyl-2,3,11,12-tetramethyldibenzo[b,i][1,4,8,11]tetraazacyclo-tetradecine)nickel(II), [Ni(Bz4TMTAA)]. The single-crystal X-ray analysis shows three studied compounds crystallize in monoclinic C2/c, Pnma orthorhombic and triclinic P 1,char/0x00AFnotimplemented${1,char/0x00AF not implemented}$ space groups, two...
Gold(I) imidazole-2-thione (IMT) complexes [Au(IMT)2]+, [Au(diIMT)]+ and [Au2(diIMT)2]2+ were synthesized by reacting Au(SMe2)Cl with ligands containing one or two IMT groups. These AuI-IMT characterized X-ray diffraction, NMR spectroscopy, mass spectrometry. The provided a linear coordination array around the AuI center, CS bonds orthogonal to S-Au-S axis. In some cases for of form [Au(IMT)2]+ [Au(diIMT)]+, cations aggregate create dimeric trimeric units in solid state, exhibit...
We report interferometric observations of nine class II methanol maser candidate lines toward W3(OH). Narrow emission spikes at vLSR = -43.1 km s-1 are present in three the lines: 31-40 A+, 72-63 and A-. For all position is near northern edge W3(OH) ultracompact H region (maser also seen southern A+ line). remaining six there no obvious counterpart to narrow spike s-1. Additional spatially extended over range from -41 -48 By comparing our observed flux densities with an extensive set model...