A5054097664- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Crystallography and molecular interactions
- Metal-Organic Frameworks: Synthesis and Applications
- Crystal structures of chemical compounds
- Magnetism in coordination complexes
- Metal complexes synthesis and properties
- melanin and skin pigmentation
- Porphyrin and Phthalocyanine Chemistry
- Cultural Heritage Materials Analysis
- Fullerene Chemistry and Applications
- Phenothiazines and Benzothiazines Synthesis and Activities
- Supramolecular Chemistry and Complexes
- Synthesis and Reactions of Organic Compounds
- Asymmetric Synthesis and Catalysis
- Synthesis and Properties of Aromatic Compounds
- Dye analysis and toxicity
- Synthesis and Biological Evaluation
- Luminescence and Fluorescent Materials
- Radical Photochemical Reactions
- Synthesis and Characterization of Heterocyclic Compounds
- Photochromic and Fluorescence Chemistry
- Chemical Synthesis and Analysis
- Bioactive Compounds and Antitumor Agents
- Inorganic and Organometallic Chemistry
University of Aberdeen
2015-2024
Loughborough University
2015
University of Malaya
2013
University of St Andrews
2001
Sunny BioDiscovery (United States)
1997-1999
Imperial College London
1989-1993
Crystallisation of flexible dipyridyl ligands with Cd(NO3)2·6H2O or CdSO4·6H2O gives co-ordination networks composition [Cd(NO3)2(Py2CH2)2] 1 [Py2CH2 = 1,1-bis(4-pyridyl)methane]; [Cd2(NO3)4(Py2C3H6)4(H2O)] 2 [Py2C3H6 1,3-bis(4-pyridyl)propane]; [Cd2(SO4)2(Py2C3H6)3(H2O)2.7]·4.5H2O 3; [Cd(NO3)2(Py2C4H8)(H2O)2] 4 [Py2C4H8 1,4-bis(4-pyridyl)butane]; [Cd2(NO3)4(Py2C5H10)3(H2O)] 5 [Py2C5H10 1,5-bis(4-pyridyl)pentane] and [Cd(NO3)2(Py2C6H12)2] 6 [Py2C6H12 1,6-bis(4-pyridyl)hexane]. The compounds...
The hydrothermal reaction of benzene-1,3,5-tricarboxylic acid (H3BTC) with MII (M = Mn, Co or Zn), tris(4-carboxyphenyl)phosphine oxide (H3TPO) cis-stilbene-4,4′-dicarboxylic (H2SDA) CoII and 2,2′-bipyridyl (BIPY) gave 1-D co-ordination networks formulated as: [M(HBTC)(BIPY)(H2O)] Mn 1, 2, Zn 3; [Co3(BTC)2(BIPY)2(H2O)6]·4H2O 4, [Co3(TPO)2(BIPY)2(H2O)6]·xH2O 5 [Co(SDA)(BIPY)(H2O)] 6. Structures 1 2 consist double stranded chains alternating HBTC dianions dimeric units MII–MII linked by two...
Crystallisation of flexible dipyridyl ligands with either Zn(NO3)2·6H2O or Zn(ClO4)2·6H2O gave co-ordination networks composition [Zn3(OH)3{(NC5H4)2C3H6}3][NO3]3·8.67H2O 1 [(NC5H4)2C3H6 = 1,3-bis(4-pyridyl)propane]; [Zn2(OH){(NC5H4)2C4H8}3][ClO4]3·H2O·EtOH 2 [(NC5H4)C4H8 1,4-bis(4-pyridyl)butane] and [Zn2(OH){(NC5H4)2C7H14}4][ClO4]3·0.5H2O 3 [(NC5H4)2C7H14 1,7-bis(4-pyridyl)heptane]. The compounds were characterised by X-ray single crystal diffraction studies. Compound possesses a trinuclear...
The hydrothermal reactions of lead(II) acetate with carboxylic acids gave solids composition [Pb(C4H4O4)] 1 (C4H4O4 = succinate); [Pb6O2(C14H9O3)8] 2 (C14H9O3 benzoylbenzoate), [Pb(C8H4NO4)2(H2O)] 4 (C8H4NO4 2-nitrobenzoate) and [Pb(C8H3N2O6)2(H2O)] 5 (C8H3N2O6 3,5-dinitrobenzoate). reaction lead monoxide trichloroacetic acid in hot wet toluene followed by filtration cooling a solid [Pb3(C2Cl3O2)6(H2O)3] 3. compounds were characterised X-ray single crystal structure determinations. Compounds...
Heteroaromatic precursors to nitrogen substituted derivatives of Koelsch's free radical have been prepared by the condensation 4,5-diazafluorene with a fluorenylidene or diazafluorenylidene. These compounds appear coloured and can exist in different tautomeric forms. An improved one pot synthesis 4,5-diazafluorenone has developed oxidative ring contraction 1,10-phenanthroline aqueous potassium permanganate. Aza are easily generated oxidation appropriate K3Fe(CN)6. Treatment...
The reaction of MII acetate (M = Sr or Ba) with benzene-1,3,5-tricarboxylic acid (H3btc) yielded crystals formulae [M(Hbtc)(H2O)2]·0.5H2O. These compounds are isostructural as shown by X-ray single-crystal analysis and powder diffraction patterns. structures consist alternating layers parallel Hbtc anions cations stacked along the c axis. metal ions co-ordinated two bidentate carboxylate groups, three monodentate groups water molecules giving an overall co-ordination number nine. Heating...
Aldehydes substituted with a quaternised pyridinium or quinolinium ring have been investigated for the development of latent fingerprints. Two routes were developed to novel in situ formed azacyanine dye. This dye might form fingerprint where reagents are concentrated but does not appreciably solution experiments as evidenced by lack an absorption band at 600 nm. N-Alkyl and N-aryl benzimidazole-2-carboxaldehydes give stable fluorescent
A series of molecular probes for the determination nitric oxide (NO) have been prepared. Each probe consists an anthracene, coumarin or acridine fluorophore coupled to electron rich o-phenylenediamine group. The group can be substituted with methyl methoxy groups enhance its nature. fluorescence is quenched by photoelectron transfer (PET) from aromatic amine lowest unoccupied orbital excited state fluorophore. Reaction nitrosating species converts into deficient benzotriazole derivative....
The absolute configuration and stability of two thianthrene chiral sulfoxides has been determined by means X-ray single-crystal structure determinations. analyses configurations allow verification that the diastereomeric are stable in solution not interconverting, which suggested some studies sulfoxides. have slightly different Rf values, allowed their separation using flash chromatography on silica. spots run back-to-back, posed a challenge for separation. pure, separated compounds remain...
The title compounds were prepared by the copper catalysed Ullmann coupling of aromatic amines with aryl iodides. Full spectroscopic details are reported. Solutions 1,3,5-tris(diarylamino)benzene derivatives in deuterated chloroform undergo hydrogen–deuterium exchange on central ring and readily turn green owing to partial oxidation traces dissolved oxygen. colour is quenched addition ascorbic acid. solutions more stable that has been filtered through basic alumina remove...
Treatment of N-phenyl- p-phenylenediamine and two equivalents aniline with potassium dichromate in hot water acidified a small amount sulfuric acid gives 3-phenylamino-5-phenyl-7-aminophenazinium sulfate (pseudo-mauveine). The oxidation o-toluidine 3-phenylamino-5-( o- toluyl)-7-amino-8-methylphenazinium sulfate. Oxidation ( o or p) toluidine only gave quantities mauveine chromophores. p-toluidine known dimer which purple coloured solution acid. A hypothesis is described may have been...