Browsing by Subject "Derivatives"

Now showing items 1-9 of 9

    • Article  

      3,4,5-Triarylisothiazoles via C-C coupling chemistry 

      Christoforou, Irene C.; Koutentis, Panayiotis Andreas (2007)
      The regiocontrolled preparation of triarylisothiazoles is presented. 3-Halo-5-phenylisothiazole-4-carbonitriles, 1 (hal = Cl) and 18 (hal = I), are converted into the corresponding 4-bromo derivatives 5 (3-hal = Cl) and ...
    • Article  

      Cyclisation chemistry of 4H-1,2,6-thiadiazines 

      Koutentis, Panayiotis Andreas; Rees, C. W. (2000)
      3,5-Dichloro-4H-1,2,6-thiadiazin-4-one 1 condenses rapidly at room temperature with 1,2-diaminobenzene, 2-aminothiophenol and sodium 2-aminophenoxide to give, respectively, the purple thiadiazinoquinoxaline 4a, red ...
    • Article  

      Halogen derivatives of m-phenylene(carbeno)nitrene: A switch in ground-state multiplicity 

      Enyo, T.; Nicolaïdes, Andrew N.; Tomioka, H. (2002)
      m-Phenylene-coupled carbenonitrenes [(3-nitrenophenyl)methylene (2-H), (3-nitrenophenyl)fluoromethylene (2-F), (3-nitrenophenyl)chloromethylene (2-Cl), (3-nitrenophenyl)bromomethylene (2-Br)] have been investigated ...
    • Article  

      Hula-twist photoisomerization of a styrene derivative examined by argon-matrix-infrared-spectroscopic method 

      Nakane, N.; Nicolaïdes, Andrew N.; Tomioka, H.; Asato, A. E.; Liu, R. S. H. (2006)
      IR spectra of α-cyano- o -fluorocinnamonitrile, its vinyl deuterated analogue and the corresponding photoproducts were recorded under Ar matrix isolation conditions (13K). An analysis of the IR spectra, assisted by ...
    • Article  

      Photochemistry of an azido-functionalized cryptand: Controlling the reactivity of an extremely long-lived singlet aryl nitrene by complexation to alkali cations 

      Bucher, G.; Tönshoff, C.; Nicolaïdes, Andrew N. (2005)
      Photolysis of the cryptand 1, bearing an intraannular azido substituent, results in a complex photochemistry. Low-temperature photolysis yields the triplet nitrene 32, which has been characterized by EPR spectroscopy. Small ...
    • Article  

      Strengthened Chernoff-type variance bounds 

      Afendras, Georgios; Papadatos, Nickos (2014)
      Let X be an absolutely continuous random variable from the integrated Pearson family and assume that X has finite moments of any order. Using some properties of the associated orthonormal polynomial system, we provide a ...
    • Article  

      Studies of steam-activated viscose rayon chars 

      Tomlinson, J. B.; Theocharis, Charis R. (1992)
      Standard techniques, such as nitrogen adsorption, mercury porosimetry, and X-ray photoelectron spectroscopy, have been used to characterise steam-activated viscose rayon-derived chars pretreated with aqueous solutions of ...
    • Conference Object  

      Thermoelectric properties of K 2Bi 8Se 13-xS x solid solutions 

      Kyratsi, Theodora; Lal, S.; Hogan, T.; Kanatzidis, M. G. (Affiliation: Department of Chemistry, Michigan State University, East Lansing, MI 48824, United StatesAffiliation: Department of Mechanical and Manufacturing Engineering, School of Engineering, University of Cyprus, Nicosia, CyprusAffiliation: Department of Electrical and Computer Engineering, Michigan State University, East Lansing, MI 48824, United StatesCorrespondence Address: Kyratsi, T.Department of Chemistry, Michigan State University, East Lansing, MI 48824, United States, 2006)
      Derivatives of β-K 2Bi 8Se 13 are an interesting series of materials for thermoelectric investigations due to their very low thermal conductivity and highly anisotropic electrical properties. Up to now substitutions on the ...
    • Article  

      Topochemical transformations of substituted cyclopentanone transition metal adducts 

      Theocharis, Charis R. (2002)
      The application of chelation to transition metal ions as a means of controlling the packing motifs of substituted catechols and of substituted malonates has been studied. Substituted malonates have been shown to be capable ...