Now showing items 21-40 of 141

  • Soft x-ray excited optical luminescence: Some recent applications 

    Hu, YF, KH Tan, PS Kim, P. Zhang, et al. 2002. "Soft x-ray excited optical luminescence: Some recent applications." Review of Scientific Instruments 73(3): 1379-1381.
    No abstract available.
  • X-Ray studies of the structure and electronic behavior of alkanethiolate-capped gold nanoparticles: The interplay of size and surface effects - Reply 

    Zhang, P., and TK Sham. 2004. "X-Ray studies of the structure and electronic behavior of alkanethiolate-capped gold nanoparticles: The interplay of size and surface effects - Reply." Physical Review Letters 92(10): 109602-109602. Copyright © 2004 American Physical Society.
    No abstract available.
  • Electrochemical route for the fabrication of alkanethiolate-capped gold nanoparticles 

    Zhang, P., PS Kim, and TK Sham. 2003. "Electrochemical route for the fabrication of alkanethiolate-capped gold nanoparticles." Applied Physics Letters 82(9): 1470-1472.
    No abstract available.
  • Tailoring the local structure and electronic property of AuPd nanoparticles by selecting capping molecules. 

    Liu, Feng, and Peng Zhang. 2010. "Tailoring the local structure and electronic property of AuPd nanoparticles by selecting capping molecules.." Applied Physics Letters 96(4): 0431051-043105/3.
    No abstract available.
  • X-ray studies of the structure and electronic behavior of alkanethiolate-capped gold nanoparticles: The interplay of size and surface effects 

    Zhang, P., and TK Sham. 2003. "X-ray studies of the structure and electronic behavior of alkanethiolate-capped gold nanoparticles: The interplay of size and surface effects." Physical Review Letters 90(24): 245502-245502. Copyright © 2003 American Physical Society.
    We report a study of the structure and electronic properties of a series of thiol-capped Au nanoparticles (NP) of nominal sizes of 1.6, 2.4, and 4.0 nm. Transmission electron microscopy, x-ray powder diffraction, x-ray ...
  • Tuning the electronic behavior of Au nanoparticles with capping molecules 

    Zhang, P., and TK Sham. 2002. "Tuning the electronic behavior of Au nanoparticles with capping molecules." Applied Physics Letters 81(4): 736-738.
    No abstract available.
  • Fabrication of thiol-capped Pd nanoparticles: An electrochemical method 

    Zhang, P., and TK Sham. 2003. "Fabrication of thiol-capped Pd nanoparticles: An electrochemical method." Applied Physics Letters 82(11): 1778-1780.
    No abstract available.
  • Microwave-accelerated synthesis of benzyl 3,5-dimethyl-pyrrole-2-carboxylate 

    Regourd, Jasmine, Ian M. Comeau, Cory S. Beshara, and Alison Thompson. 2006. "Microwave-accelerated synthesis of benzyl 3,5-dimethyl-pyrrole-2-carboxylate." Journal of Heterocyclic Chemistry 43(6): 1709-1714.
    Benzyl 3,5-dimethyl-pyrrole-2-carboxylate, a very useful pyrrole in porphyrin and dipyrromethene synthesis, can be synthesized via the Knorr-type reaction, but in low yield. Alternative routes to benzyl 3,5-dimethyl-pyrr ...
  • Chiral molecules containing the pyrrole framework 

    Thirumalairajan, Srinath, Beth M. Pearce, and Alison Thompson. 2010. "Chiral molecules containing the pyrrole framework." Chemical Communications 46(11): 1797-1812.
    This review summarizes strategies by which chiral pyrroles, both simple and complex, have been prepared: strategies include formation of the pyrrolic ring using starting materials appended with chirality, as well as the ...
  • Synthesis of heteroleptic pyrrolide/bipyridyl complexes of ruthenium(II) 

    Lundrigan, Travis, Carla L. M. Jackson, Md Imam Uddin, Lloyd A. Tucker, et al. 2012. "Synthesis of heteroleptic pyrrolide/bipyridyl complexes of ruthenium(II)." Canadian Journal of Chemistry-Revue Canadienne De Chimie 90(8): 693-700.
    The synthesis and characterization of the first heteroleptic pyrrolide/2,2'-bipyridyl complexes of ruthenium(II) are reported. Pyrroles substituted at the 2-position with X = O functionality react with Ru(bipy)(2)Cl-2.2H(2)O ...
  • Investigations regarding the utility of prodigiosenes to treat leukemia 

    Smithen, Deborah A., A. Michael Forrester, Dale P. Corkery, Graham Dellaire, et al. 2013. "Investigations regarding the utility of prodigiosenes to treat leukemia." Organic & Biomolecular Chemistry 11(1): 62-68.
    Prodigiosenes, possessing a 4-methoxypyrrolyldipyrrin skeleton, are known for their anti-cancer activity. Structural modification of the C-ring resulted in a series of prodigiosenes that displayed promising activity against ...
  • Synthesis and characterisation of the unsubstituted dipyrrin and 4,4-dichloro-4-bora-3a,4a-diaza-s-indacene: improved synthesis and functionalisation of the simplest BODIPY framework 

    Groves, Brandon R., Sarah M. Crawford, Travis Lundrigan, Cherif F. Matta, et al. 2013. "Synthesis and characterisation of the unsubstituted dipyrrin and 4,4-dichloro-4-bora-3a,4a-diaza-s-indacene: improved synthesis and functionalisation of the simplest BODIPY framework." Chemical Communications 49(8): 816-818.
    An improved and scalable synthesis of the unsubstituted 4,4-difluoro-4-bora-3a,4a-diaza-s-indacene framework facilitates access to the previously unreported parent dipyrrin HCl salt, as well as 4,4-dichloro-4-bora-3a,4a- ...
  • Cl-BODIPYs: a BODIPY class enabling facile beta-substitution 

    Lundrigan, Travis, Sarah M. Crawford, T. Stanley Cameron, and Alison Thompson. 2012. "Cl-BODIPYs: a BODIPY class enabling facile beta-substitution." Chemical Communications 48(7): 1003-1005.
    Cl-BODIPYs, synthesized in high yields from dipyrrins under air- and moisture-free conditions, are extremely facile to substitution at boron compared to their corresponding F-BODIPYs, opening up a new route to BODIPYs ...
  • Conversion of F-BODIPYs to Cl-BODIPYs: Enhancing the Reactivity of F-BODIPYs 

    Lundrigan, Travis, and Alison Thompson. 2013. "Conversion of F-BODIPYs to Cl-BODIPYs: Enhancing the Reactivity of F-BODIPYs." Journal of Organic Chemistry 78(2): 757-761.
    A new method for the synthesis of Cl-BODIPYs from F-BODIPYs is reported, merely requiring treatment of the F-BODIPY with boron trichloride. Cl-BODIPYs are exploited as synthetic intermediates generated in situ for the ...
  • The first series of alkali dipyrrinato complexes 

    Ali, Adeeb Al-Sheikh, Judy Cipot-Wechsler, Sarah M. Crawford, Omar Selim, et al. 2010. "The first series of alkali dipyrrinato complexes." Canadian Journal of Chemistry-Revue Canadienne De Chimie 88(8): 725-735.
    The first series of alkali dipyrrinato complexes is reported, encompassing lithium, sodium, and potassium salts of meso-unsubstituted and meso-aryl-substituted derivatives. By varying the substituents at the meso position, ...
  • Synthesis of dipyrrins bearing chirality adjacent to the conjugated skeleton - Electron-poor pyrroles exhibit dramatically reduced nucleophilicity 

    Beshara, Cory S., Beth M. Pearce, and Alison Thompson. 2008. "Synthesis of dipyrrins bearing chirality adjacent to the conjugated skeleton - Electron-poor pyrroles exhibit dramatically reduced nucleophilicity." Canadian Journal of Chemistry-Revue Canadienne De Chimie 86(10): 951-957.
    With the aim of furthering our investigations into the asymmetric complexation of dipyrrinato ligands, a dipyrrin bearing a stereogenic centre directly adjacent to the conjugated skeleton was synthesized. The electron- ...
  • Heteroleptic zinc dipyrromethene complexes 

    Amiri, A., IM Comeau, and A. Thompson. 2006. "Heteroleptic zinc dipyrromethene complexes." Journal of Heterocyclic Chemistry 43(2): 431-435.
    H-1 NMR spectroscopy has been used to study the complexation of a per-alkyl dipyrromethene with zinc acetate. An intermediate, assigned to be the heteroleptic Zn(dipyrromethene) (acetate) complex, is observed under titration ...
  • Chloride anion transport and copper-mediated DNA cleavage by C-ring functionalized prodigiosenes 

    Diaz, Rosa I. Saez, Jasmine Regourd, Paul V. Santacroce, Jeffery T. Davis, et al. 2007. "Chloride anion transport and copper-mediated DNA cleavage by C-ring functionalized prodigiosenes." Chemical Communications: 2701-2703.
    A new class of prodigiosenes with stability-enhancing functionalities appended to the C-ring were found to transport chloride anions through liposomal membranes, as well as to induce copper-mediated DNA cleavage.
  • Investigations into the nucleophilic meso-substitution of F-BODIPYs and improvements to the synthesis of 4,4-difluoro-4-bora-3a,4a-diaza-s-indacene. 

    Crawford, Sarah M., and Alison Thompson. 2011. "Investigations into the nucleophilic meso-substitution of F-BODIPYs and improvements to the synthesis of 4,4-difluoro-4-bora-3a,4a-diaza-s-indacene." Heterocycles 83(2): 311-322.
    A series of three F-BODIPYs, with varying levels of steric crowding about the meso-position were selected to investigate nucleophilic meso-substitution of F-BODIPYs. The synthesis of one of these F-BODIPYs, 4,4-difluor ...
  • Asymmetric oxidation of 2-(arylsulfenyl)pyrroles 

    Thompson, Alison, Jose R. Garabatos-Perera, and H. Martin Gillis. 2008. "Asymmetric oxidation of 2-(arylsulfenyl)pyrroles." Canadian Journal of Chemistry-Revue Canadienne De Chimie 86(7): 676-681.
    The asymmetric oxidation of prochiral 2-(arylsulfenyl)pyrroles has been investigated. A marked electronic effect within the substrate significantly influenced the degree of enantioselectivity obtained, with very high enantio ...