A5040590452- Organometallic Complex Synthesis and Catalysis
- Metalloenzymes and iron-sulfur proteins
- Metal complexes synthesis and properties
- Organometallic Compounds Synthesis and Characterization
- CO2 Reduction Techniques and Catalysts
- Chemical Reactions and Isotopes
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Synthesis and characterization of novel inorganic/organometallic compounds
- Catalytic Processes in Materials Science
- Plant and fungal interactions
- Medical Imaging Techniques and Applications
- Radiopharmaceutical Chemistry and Applications
- Advanced NMR Techniques and Applications
- Inorganic Chemistry and Materials
- Asymmetric Hydrogenation and Catalysis
- Advanced Photocatalysis Techniques
- Atmospheric chemistry and aerosols
- Magnetism in coordination complexes
- Coordination Chemistry and Organometallics
- Molecular spectroscopy and chirality
- Carbon dioxide utilization in catalysis
- Synthesis and Reactivity of Sulfur-Containing Compounds
- Psychedelics and Drug Studies
- Coffee research and impacts
University of Toronto
2001-2017
Isomer Design (Canada)
2016
Toronto Public Health
2015
Pennsylvania State University
2004
University of Sussex
1995
Memorial University of Newfoundland
1989
The reverse water gas shift (RWGS) reaction driven by Nb
Lysergic acid N , ‐diethylamide (LSD) is perhaps one of the most intriguing psychoactive substances known and numerous analogs have been explored to varying extents in previous decades. In 2013, 6 ‐allyl‐6‐norlysergic diethylamide (AL‐LAD) (2’ S ,4’ )‐lysergic 2,4‐dimethylazetidide (LSZ) appeared on ‘research chemicals’/new (NPS) market both powdered blotter form. This study reports analytical characterization AL‐LAD LSZ tartrate samples their semi‐quantitative determination paper. Included...
Ozone and polycyclic aromatic compounds react heterogeneously to form environmentally persistent free radicals.
The use of perfluorinated anionic carboxylic acids (PFCAs) as surfactants is common and widespread. Investigations PFCAs have shown that their physical properties toxicological aspects are dependent upon the carbon chain length. magnitude these not a linear function length yet no explanation unique observations has been made. Their environmental dissemination expected to be nonproportional An understanding fundamental underlying reason for this novel property, trend, would aid further...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTRuHX(H2)(PiPr3)2 (X = Cl, I): 16 Electron Dihydrogen-Hydride or Trihydride Complexes?Timothy Burrow, Sylviane Sabo-Etienne, and Bruno ChaudretCite this: Inorg. Chem. 1995, 34, 9, 2470–2472Publication Date (Print):April 1, 1995Publication History Published online1 May 2002Published inissue 1 April 1995https://doi.org/10.1021/ic00113a033RIGHTS & PERMISSIONSArticle Views178Altmetric-Citations30LEARN ABOUT THESE METRICSArticle Views are the...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTUse of NMR and Prediction Software To Identify Components in Red Bull Energy DrinksBrent Lefebvre , Tricia Corrin André J. Simpson Azadeh Shirzadi Timothy E. Burrow Andrew P. Dicks View Author Information Advanced Chemistry Development Inc., 110 Yonge Street, 14th Floor, Toronto, Ontario, Canada, M5C 1T4 Department Chemistry, University M5S 3H6Cite this: Chem. Educ. 2009, 86, 3, 360Publication Date (Web):March 1, 2009Publication History Received3...
The effect of various acquisition and processing parameters on the sensitivity HMBC spectra for typical organic molecules has been systematically investigated. For in 200-600 molecular weight range, an time 0.2 to 0.4 s, a recycle no more than 1.0 optimization (n)J(CH) = 8 Hz 512 increments (with two- fourfold linear prediction) are recommended. Some form sine bell weighting along f2 either Gaussian or f1 is suggested. use 0.1-s and/or exponential can result dramatic loss, particularly...
The red, diamagnetic complexes mer-[Mo(SC6H2 Pri3-2,4,6)2(CO)3(PMePh2)]1 and [Mo(SC6H2Pri3-2,4,6)2(CO)2(PMePh2)2]2 have been prepared by reaction of [MoH(SC6H2Pri3-2,4,6)3(PMePh2)] with CO in tetrahydrofuran. crystal structure 1 shows it to a distorted octahedral geometry mer-CO ligands [d(Mo–S) 2.380(1) 2.366(1); d(Mo–C) 2.030(5), 2.026(4) 2.066(5); d(Mo–P) 2.561(1)Å; large S–Mo–S angle 116.0°]. Reaction [WH(SC6H2Me3-2,4,6)3(PMe2Ph)2] toluene gives green,...
Reaction of the complexes [MH(SC6H2R3-2,4,6)3(PMe2Ph)2]1(M = Mo or W, R Me Pri) with neutral ligands L causes phosphine displacement to give series [MH(SC6H2R3-2,4,6)3(PMe2Ph)L]2[L R′C5H4N, P(OR″)3 MeCN; R′= H, 2-, 3- 4-Me, R″= Et]. Deuterido-analogues were also prepared. CO caused hydride and thiolate compounds [M(SC6H2R3-2,4,6)2(CO)2(PMe2Ph)2] which have different geometries depending upon R. The X-ray crystal structure analyses [M(SC6H2Pri3-2,4,6)2(CO)2(PMe2Ph)2]3(M W) show them...
The complexes [MoH(SC6H2R3-2,4,6)3(PR′Ph2)]1(R = Me or Pri; R′= Et) in THF–MeOH decompose via cleavage of an aryl carbon–sulphur bond to give C6H3R3-2,4,6 and [{Mo(SC6H2R3-2,4,6)(OMe)(PR′Ph2)}2(µ-S)2], 3, one which (R Pri, Me) has been characterized by single crystal X-ray diffraction.
A modified version of the attached proton test (APT) sequence for 13 C spectral editing, which we call CRisis‐APT (CRAPT), is developed and tested on representative organic compounds. CRAPT incorporates compensation refocusing inefficiency with synchronized inversion sweeps (CRISIS) pulses in combination 1 H broadband to give improved variations J CH along efficiency. It shown that gives edited spectra only small losses sensitivity (between 8% 15% strychnine, , menthol, 2 cholecalciferol, 3...
The complexes [MH(SC6H2R3-2,4,6)3(PMe2Ph)2]1(M = Mo or W, R Me Pri) and their deuterio analogues have been prepared. X-ray structures of 1(M determined, showing the overall geometry in both to be based on a distorted trigonal-bipyramidal arrangement thiolates with phosphines essentially trans each other. hydride ligand could not located by diffraction either structure, but its presence is established spectroscopic studies. preparation [MoBr(SPh)3(PMe2Ph)2] also described.
The symmetrical bisferrocene 1,1,14,14-tetra-n-butyl-2,2,13,13,15,15,26,26-octamethyl-1,2,13,14,15,26-hexastanna[3.3]ferrocenophane ([(η5-C5H4)Fe(η5-C5H4SnMe2Sn(n-Bu)2SnMe2)]2, 8) was synthesized in good yield (82%) from the reductive coupling reaction of 1,1′-bis(dimethylstannyl)ferrocene, 6, with one equivalent di-n-butylbis(diethylamino) stannane, 7a, at 0 °C diethyl ether solution. Compound 8 is stable to ambient light but decomposes presence moisture or chlorinated solvents. title...
The reaction of [WCl 4 (PMe 2 Ph) 3 ] with C 6 H (SH) -1,2 in toluene gives dark brown [W(C S -1,2) ], which on standing solution deep green [PHMe Ph][W(C -1,2)3]. X-ray structure -1,2)3] shows the tungsten to be coordinated by three (C 2- ligands an average W-S distance 2.386 (6) A a geometry is halfway between octahedral and trigonal prismatic
The complexes [MoH(SC6H2Pri3-2,4,6)3(Pr1Ph2)]1(R1= Me or Et) in tetrahydrofuran (thf)–R2OH decomposed via cleavage of an aryl carbon–sulfur bond to give C6H3Pri3-1,3,5 and the [{Mo(SC6H2Pri3-2,4,6)(OR2)(PR1Ph2)}2(µ-S)2]2(R2= Et). Compounds 2a(R1= R2= Me) 2b(R1= have been structurally characterised by X-ray diffraction shown be dimers with (µ-S)2 bridging ligands derived from thiolate precursor complexes. arene produced these reactions has detected 2H NMR spectroscopy GC–mass spectrometry;...
Measurement of the T 1 values 31 P nuclei in unusual capped trigonal bipyramidal complexes WH(tipt) 3 (PMe 2 Ph) (1, tipt = SC 6 H Pr i -2,4,6) and W( H)(tipt) allows determination phosphorus–hydride distance 2.2 ± 0.2 Å P-W-H angle about 62 7°. An approximate location hydride on an S face is proposed basis steric interactions. The crystal structure -(NC 5 )(PMe (2) reported; WS NP core consists a distorted system with phosphine pyridine ligands axial thiolate equatorial. ligand was not...
Some Like It Hot: Geoffry A. Ozin and co-workers demonstrate that the reverse water gas shift (RWGS) reaction, driven by a visible near infrared responsive Pd@Nb2O5 is thermally activated with measured conversion rates as high 1.8 mmol gcat−1 h−1, in article 1600189. Specifically, RWGS reaction enabled heat generated from thermalization of photoexcited charge carriers Pd nanocrystals function “nanoheaters” for entire assembly, through non-radiative relaxation inter-band intra-band conduction...