Now showing items 1418-1437 of 8717

  • The cool hydrogen-deficient carbon stars and their atmospheres 

    Jones, Kevin N. (University of St Andrews, 1992) - Thesis
    Photoelectric photometry of a large sample of R CrB and hydrogen-deficient carbon stars was obtained over a period of five months in order to search for variability and determine the period if variable. All the stars in ...
  • The cooling of coronal plasmas. IV. Catastrophic cooling of loops 

    Cargill, P.J.; Bradshaw, S.J. (2013-07-20) - Journal article
    We examine the radiative cooling of coronal loops and demonstrate that the recently identified catastrophic cooling is due to the inability of a loop to sustain radiative/enthalpy cooling below a critical temperature, which ...
  • A cooperative Pd-Cu system for direct C-H bond arylation 

    Lesieur, Mathieu; Lazreg, Faima; Cazin, Catherine S. J. (2014-08-18) - Journal article
    A novel and efficient method for C-H arylation using well-defined Pd- and Cu-NHC systems has been developed. This process promotes the challenging construction of C-C bonds from arenes or heteroarenes using aryl bromides ...
  • A coordinated optical and X-ray spectroscopic campaign on HD 179949 : searching for planet-induced chromospheric and coronal activity 

    Scandariato, G.; Maggio, A.; Lanza, A. F.; Pagano, I.; Fares, R.; Shkolnik, E. L.; Bohlender, D.; Cameron, A. C.; Dieters, S.; Donati, J.-F.; Martínez Fiorenzano, A. F.; Jardine, M.; Moutou, C. (2013-04) - Journal article
    Context. HD 179949 is an F8V star, orbited by a close-in giant planet with a period of ~3 days. Previous studies suggested that the planet enhances the magnetic activity of the parent star, producing a chromospheric hot ...
  • Coordination in public good provision : how individual volunteering is impacted by the volunteering of others 

    Diasakos, Theodoros; Neymotin, Florence (University of St Andrews, 2013-07) - Working or discussion paper
    In this analysis, we examine the relationship between an individual's decision to volunteer and the average level of volunteering in the community where the individual resides. Our theoretical model is based on a coordination ...
  • Coordination polymer chains built from CuII and adipate ions linked by hydrogen bonds to form a three-dimensional framework structure 

    Setifi, Z.; Boutebdja, M.; Setifi, F.; Merazig, H.; Glidewell, C. (2014-07-01) - Journal article
    In the title compound, catena-poly[bis[(2,2'-bipyridine-κ2N,N')(1,1,3,3-tetracyano-2-ethoxypropenido-κN)copper(II)]-μ4- hexanedioato-κ6O1,O1:O1 :O6,O6':O6], [Cu2(C9H5N4O)2(C6H8O4)(C10H8N2)2]n , the adipate (hexanedioate) ...
  • Coordination polymers of 5-substituted isophthalic acid 

    McCormick, Laura J.; Morris, Samuel A.; Slawin, Alexandra M. Z.; Teat, Simon J.; Morris, Russell E. (2016-02-21) - Journal article
    The synthesis and characterisation of five coordination polymers - Ni2(mip)2(H2O)8·2H2O ( 1 ), Zn6(mip)5(OH)2(H2O)4·7.4H2O ( 2 ), Zn6(mip)5(OH)2(H2O)2·4H2O ( 3 ), Mn(HMeOip)2 ( 4 ), and Mn3(tbip)2(Htbip)2(EtOH)2 ( 5 ) - ...
  • Coordination polymers of ZnII and 5-methoxy isophthalate 

    McCormick, Laura Jayne; Morris, Samuel Alexander; Teat, Simon J.; McPherson, Matthew Joseph; Slawin, Alexandra Martha Zoya; Morris, Russell Edward (2015-10-28) - Journal article
    Solvothermal reaction of Zn(OAc)2 and 5-methoxy isophthalic acid (H2MeOip) in aqueous alcohols ROH (R = H, Me, Et, or iPr) affords four different novel coordination polymers. Zn2(HMeOip)(MeOip)(OAc) (1) forms as a 1D 'ribbon ...
  • Coordinatively unsaturated metal organic frameworks for olefin separations 

    Renouf, Catherine Louise (University of St Andrews, 2013-06-26) - Thesis
    The research presented in this thesis aims to assess the capacity of metal organic frameworks with open metal sites for the separation of olefin mixtures. Chapter 1 provides a background to the field, including industrial ...
  • Coordinatively unsaturated ruthenium complexes as efficient alkyne-azide cycloaddition catalysts 

    Lamberti, Marina; Fortman, George C.; Poater, Albert; Broggi, Julie; Slawin, Alexandra M. Z.; Cavallo, Luigi; Nolan, Steven P. (2012-01-23) - Journal article
    The performance of 16-electron ruthenium complexes with the general formula Cp*Ru(L)X (in which L = phosphine or N-heterocyclic carbene ligand; X = Cl or OCH2CF3) was explored in azide−alkyne cycloaddition reactions that ...
  • COP 17 and accountants : where next? 

    Association of Chartered Certified Accountants (Association of Chartered Certified Accountants, 2011-11-01) - Report
    This paper introduces the 17th meeting of the signatories to the UN Framework Convention for Climate Change (UNFCCC), taking place in Durban, South Africa, in late 2011 (COP 17). The paper summarises the opinions of a panel ...
  • Coping with Asad: Lebanese prime ministers’ strategies 

    Osoegawa, Taku (Centre for Syrian Studies, School of International Relations, University of St Andrews, 2015-03-24) - Journal article
  • Coping with asthma : investigation and intervention using the self-regulation model 

    Williams, Julie M. (University of St Andrews, 1995) - Thesis
    The Self-Regulation Model (Leventhal, Nerenz & Steele, 1984) highlights the roles of patients' illness representations, coping, emotional reactions and appraisal of coping in the progression of chronic disease. This thesis ...
  • Copper isotope evidence for large-scale sulphide fractionation during Earth’s differentiation 

    Savage, P.S.; Moynier, F.; Chen, H.; Shofner, G.; Siebert, J.; Badro, J.; Puchtel, I.S. (2015-06-04) - Journal article
    Abstract The differentiation of Earth into a metallic core and silicate mantle left its signature on the chemical and isotopic composition of the bulk silicate Earth (BSE). This is seen in the depletion of siderophile ...
  • Copper N-heterocyclic carbene complexes as active catalysts for the synthesis of 2-substituted oxazolines from nitriles and aminoalcohols 

    Trose, Michael; Lazreg, Faima; Lesieur, Mathieu; Cazin, Catherine S.J. (2015) - Journal article
    The reaction between nitriles and aminoalcohols to access 2-substituted oxazolines was investigated. Using copper–NHC complexes, various nitriles were successfully converted into the corresponding oxazolines, under milder ...
  • Copper(I) complexes bearing carbenes beyond classical N-heterocyclic carbenes : synthesis and catalytic activity in “click chemistry” 

    Bidal, Yannick Daniel; Lesieur, Mathieu; Melaimi, Mohand; Nahra, Fady; Cordes, David Bradford; Athukorala Arachchige, Kasun Sankalpa; Slawin, Alexandra Martha Zoya; Bertrand, Guy; Cazin, Catherine S.J. (2015-10-12) - Journal article
    The synthesis and characterization of abnormal N-heterocyclic carbene, cyclic (alkyl)(amino)carbene, and mesoionic carbene copper(I) complexes are reported. These organometallic species are obtained via a versatile and ...
  • Copper(I)-N-heterocyclic carbene (NHC) complexes : synthesis, characterisation and applications in synthesis and catalysis 

    Santoro, Orlando (University of St Andrews, 2016) - Thesis
    The work described herein focuses on the synthesis and characterisation of copper(I) complexes bearing N-heterocyclic carbene (NHC) ligands, their use in catalysis as well as organometallic synthesis and related reaction ...
  • Copper-NHC complexes in catalysis 

    Lazreg, Faima; Nahra, Fady; Cazin, Catherine S.J. (2015-06-15) - Journal article
    Although the chemistry of copper has a long history [1a-d], the relatively recent discovery of N-heterocyclic carbene (NHC) as transition-metal supporting ligands has permitted novel vistas to be explored in copper reactivity ...
  • Coprime invariable generation and minimal-exponent groups 

    Detomi, Eloisa; Lucchini, Andrea; Roney-Dougal, C.M. (2015-08) - Journal article
    A finite group G is coprimely invariably generated if there exists a set of generators {g1,. .,gu} of G with the property that the orders |g1|,. .,|gu| are pairwise coprime and that for all x1,. .,xu∈G the set {g1x1,. ...
  • Copulae on products of compact Riemannian manifolds 

    Jupp, P.E. (2015-09) - Journal article
    Abstract One standard way of considering a probability distribution on the unit n -cube, [0 , 1]n , due to Sklar (1959), is to decompose it into its marginal distributions and a copula, i.e. a probability distribution on ...