Hazendonk, Paul

 

Recent Submissions

  • SF4·N(C2H5)3: the first conclusively characterized SF4 adduct with an organic base 
    Goettel, James T.; Chaudhary, Praveen; Hazendonk, Paul; Mercier, Hélène P. A.; Gerken, Michael (Royal Society of ChemistryArts and ScienceLibraryUniversity of LethbridgeMcMaster Universityhttps://doi.org/10.1039/C2CC34578A, 2012)
    Sulfur tetrafluoride and triethylamine react at low temperatures to form a 1 : 1 adduct. The unambiguous characterization of the SF4 N(C2H5)3, which is only stable at low temperature, proves the Lewis acid property of ...
  • The structure of trimethyltin fluoride 
    Chaudhary, Praveen; Bieringer, Mario; Hazendonk, Paul; Gerken, Michael (Royal Society of ChemistryArts and ScienceDepartment of Chemistry and BiochemistryUniversity of LethbridgeCanadian Centre for Research in Advanced Fluorine TechnologiesUniversity of Manitobahttps://doi.org/10.1039/C5DT01994J, 2015)
    The solid-state structure of (CH3)3SnF was reinvestigated by X-ray diffraction techniques as well as by multi-nuclear solid-state NMR spectroscopy. Trimethyltin fluoride crystallizes from hot ethanol in the orthorhombic ...
  • Single-core PAHs in petroleum- and coal-derived asphaltenes: size and distribution from solid-state NMR spectroscopy and optical absorption measurements 
    Majumdar, R. Dutta; Bake, K. D.; Ratna, Y.; Pomerantz, A. E.; Mullins, O. C.; Gerken, Michael; Hazendonk, Paul (American Chemical SocietyArts and ScienceDepartment of Chemistry and BiochemistryCanadian Centre for Research in Advanced Fluorine TechnologiesSchlumberger-Doll ResearchUniversity of Lethbridgehttps://doi.org/10.1021/acs.energyfuels.5b02815, 2016)
    Using solid-state 13C NMR spectroscopy of two different asphaltenes, one derived from petroleum and the other from coal liquids, it was shown that the asphaltene molecular architecture consists of a spectrum of sizes, ...
  • Stabilisation of [WF5]+ and WF5 by pyridine: facile access to [WF5(NC5H5)3]+ and WF5(NC5H5)2 
    Turnbull, Douglas; Hazendonk, Paul; Wetmore, Stacey D. (WileyArts and ScienceDepartment of Chemistry and BiochemistryUniversity of LethbridgeCanadian Centre for Research in Advanced Fluorine Technologieshttps://doi.org/10.1002/chem.202000424, 2020)
    The enhanced reactivity of [WF5]+ over WF6 has been exploited to access a neutral derivative of elusive WF5. The reaction of WF6(NC5H5)2 with [(CH3)3Si(NC5H5)][O3SCF3] in CH2Cl2 results in quantitative formation of ...
  • Reactions of molybdenum and tungsten oxide tetrafluoride with sulfur(IV) Lewis bases: structure and bonding in [WOF4]4, MOF4(OSO), and [SF3][M2O2F9] (M = Mo, W) 
    Turnbull, Douglas; Chaudhary, Praveen; Leenstra, Dakota; Hazendonk, Paul; Wetmore, Stacey D. (American Chemical SocietyArts and ScienceDepartment of Chemistry and BiochemistryUniversity of LethbridgeCanadian Centre for Research in Advanced Fluorine Technologieshttps://dx.doi.org/10.1021/acs.inorgchem.0c02783?ref=pdf, 2020)
    The structure of [WOF4]4 has been reinvestigated by low-temperature X-ray crystallography and DFT (MN15/def2- SVPD) studies. Whereas the W4F4 ring of the tetramer is planar and disordered in the solid state, the optimized ...
  • Chalcogen versus dative bonding in [SF3] + Lewis acid−base adducts: [SF3(NCCH3)2] +, [SF3(NC5H5)2] +, and [SF3(phen)]+ (phen = 1,10-phenanthroline) 
    Turnbull, Douglas; Chaudhary, Praveen; Hazendonk, Paul; Wetmore, Stacey D.; Gerken, Michael (American Chemical SocietyArts and ScienceDepartment of Chemistry and BiochemistryUniversity of Lethbridgehttps://dx.doi.org/10.1021/acs.inorgchem.0c03679?ref=pdf, 2021)
    The Lewis-acid behavior of [SF3][MF6] (M = Sb, As) salts toward mono- and bidentate nitrogen bases was explored. Reactions of [SF3][MF6] with excesses of CH3CN and C5H5N yielded [SF3(L)2]+ (L = CH3CN, C5H5N) salts, whereas ...
  • Lewis acid behavior of SF4: synthesis, characterization, and computational study of adducts of SF4 with pyridine and pyridine derivatives 
    Chaudhary, Praveen; Goettel, James T.; Mercier, Hélène P. A.; Sowlati-Hashjin, Shahin; Hazendonk, Paul; Gerken, Michael (WileyArts and ScienceDepartment of Chemistry and BiochemistryUniversity of LethbridgeMcMaster Universityhttps://doi.org/10.1002/chem.201406359, 2015)
    Sulfur tetrafluoride was shown to act as a Lewis acid towards organic nitrogen-bases, such as pyridine, 2,6-dimethylpyridine, 4-methylpyridine, and 4-dimethylaminopyridine. The SF4·NC5H5, SF4·2,6-NC5H3(CH3)2, ...
  • Coupling of CpCr(CO)3 and heterocyclic dithiadiazolyl radicals: synthetic, X-ray diffraction, dynamic NMR, EPR, CV and DFT studies 
    Lau, Hiu F.; Ang, Chwee Y.; Ng, Victor W. L.; Kuan, Seah L.; Goh, Lai Y.; Borisov, Alexey S.; Hazendonk, Paul; Roemmele, Tracey L.; Boeré, René T.; Webster, Richard D. (ACS PublicationsArts and ScienceDepartment of Chemistry and BiochemistryNational University of SingaporeUniversity of LethbridgeNanyang Technological Universityhttps://doi.org/10.1021/ic702128f, 2008)
    The reaction of 1,2,3,5-dithiadiazolyls, (4-R-C6H4CN2S2)2 (R = Me, 2a; Cl, 2b; OMe, 2c; and CF3, 2d) and (3-NC-5-tBu-C6H3CN2S2)2 (2e) with (CpCr(CO)3]2 (Cp = η5-C5H5) (1) at ambient temperature, yielded respectively the ...
  • Solvent and water mediated structural variations in deoxynivalenol and their potential implications on the disruption of ribosomal function 
    Foroud, Nora Afsaneh; Shank, Roxanne A.; Kiss, Douglas; Eudes, François; Hazendonk, Paul (Frontiers MediaArts and ScienceDepartment of Chemistry and BiochemistryLethbridge Research and Development CentreUniversity of Lethbridge, 2016)
    Fusarium head blight (FHB) is a disease of cereal crops caused by trichothecene producing Fusarium species. Trichothecenes, macrocylicic fungal metabolites composed of three fused rings (A–C) with one epoxidef unctionality, ...
  • Hydrogen-bonding interactions in T-2 toxin studies using solution and solid-state NMR 
    Chaudhary, Praveen; Shank, Roxanne A.; Montina, Tony; Goettel, James T.; Foroud, Nora Afsaneh; Hazendonk, Paul; Eudes, François (M D P I A GArts and ScienceDepartment of Chemistry & BiochemistryUniversity of LethbridgeAgriculture and Agri-Food Canada, 2011)
    The structure of T-2 toxin in the solid-state is limited to X-ray crystallographic studies, which lack sufficient resolution to provide direct evidence for hydrogen-bonding interactions. Furthermore, its solution-structure, ...
  • Current and future experimental strategies for structural analysis of trichothecene mycotoxins-a prospectus 
    Shank, Roxanne A.; Foroud, Nora Afsaneh; Hazendonk, Paul; Eudes, François; Blackwell, Barbara A. (M D P I A GArts and ScienceDepartment of Chemistry & BiochemistryAgriculture and Agri-Food CanadaUniversity of Lethbridge, 2011)
    Fungal toxins, such as those produced by members of the order Hypocreales, have widespread effects on cereal crops, resulting in yield losses and the potential for severe disease and mortality in humans and livestock. ...