Student Corner: Recent submissions

  • Perera, K. Sarath D. (Institute of chemistry Ceylon, 2024-01)
    Cyclic voltammetry (CV) is used extensively by electrochemists to obtain the potential at which the chemical processes occur, and to obtain information about coupled homogeneous chemical reactions or the role of ...
  • Perera, K. Sarath D. (Institute of chemistry Ceylon, 2024-01)
    A coordination complex of the type [MLx ]n+ is formed when each neutral ligand (L) donates a lone pair of electrons to a metal centre (Mn+). Here, x is the coordination number and n+ is the oxidation number of M. We ...
  • Perera, K. Sarath D. (Institute of chemistry Ceylon, 2024-01)
    Organometallic complexes have at least one organic group and they can undergo various types of reactions. Incoming electrophile may react with or attack on either the metal centre or on one of the coordinated ligands
  • Thiloka, J.A.; Ariyasena, C. (Institute of chemistry Ceylon, 2023-09)
    In supercritical fluid chromatography, a supercritical fluid is used as the mobile phase and the stationary phase is usually a thin liquid film which is bonded to the surface of support materials or the capillary column ...
  • Perera, K. Sarath D. (Institute of chemistry Ceylon, 2023-09)
    Research findings suggest that eleven elements are predominantly present in all biological systems. However, hydrogen, carbon, oxygen and nitrogen correspond to 99% of the total. Hydrogen constitutes 62.8% of the atoms in ...
  • Perera, K. Sarath D. (Institute of chemistry Ceylon, 2023-09)
    Organometallic chemistry is a branch of coordination chemistry and deals with compounds which have at least one metal-carbon bond. Since metals are more electropositive than carbon it is considered that the metal-carbon ...
  • Perera, K. Sarath D. (Institute of chemistry Ceylon, 2023-09)
    Boron hydrides are known as electron deficient compounds. There are two NMR active isotopes (e.g., 10B and 11B). Boron-11 NMR spectroscopy is widely used to find out molecular structures and exchange processes of boron ...
  • Perera, K. Sarath. D. (Institue of Chemistry Ceylon, 2023-06)
    Coordinatively unsaturated metal centers may interact with a C-H bond of a coordinated ligand and then undergo C-H bond activation or fission to form metallacycles
  • Perera, K. Sarath D. (Institute of chemistry Ceylon, 2023-06)
    Coordinatively unsaturated metal centers may interact with a C-H bond of a coordinated ligand and then undergo C-H bond activation or fission to form metallacycles.
  • Perera, K. Sarath. D. (Institute of chemistry Ceylon, 2023-06)
    Boron hydrides are a class of electron deficient compounds that have unusual bonding behavior and form cages and clusters. The electron deficient BH3 is the simplest boron hydride which exists as a dimer B2 H6 ...
  • Perera, K. Sarath D. (Institute of chemistry Ceylon, 2023-06)
    Coordinatively unsaturated metal centers may interact with a C-H bond of a coordinated ligand and then undergo C-H bond activation or fission to form metallacycles.
  • Perera, K. Sarath. D. (Institute of chemistry Ceylon, 2023-06)
    Diels-Alder (D-A) reaction is a (4π+2π) cycloaddition reaction. It is used to generate six-membered rings by combining two π-systems. The key components of this reaction are a conjugated diene (an alkene with two π-bonds) ...
  • Jayasinghe, Susanthi (Institute of Chemistry Ceylon, 2023-01)
    Organic reactions are chemical processes that involve organic substances. The fundamental types of organic chemistry reactions include substitution reactions, elimination reactions, addition reactions, redox ...
  • Ariyasena, J. A. T. C (Institute of Chemistry Ceylon, 2023-01)
    Chromatographic methods are recognized as the most powerful analytical separation techniques to date, for the identification and separation of complex mixtures of chemical compounds.
  • Perera, K. Sarath. D. (Institute of Chemistry Ceylon, 2023-01)
    Palladium complexes catalyze many types of organic reactions. It is particularly useful in forming carbon- carbon bonds.
  • Perera, K. Sarath. D. (Institute of Chemistry Ceylon, 2023-01)
    An alkyl-metal complex has at least one Metal Carbon (M-C) σ- or π-bond. Grignard reagent (RMgX) and LiR are the most common alkyl-metal reagents used in organic synthesis.
  • Perera, K. Sarath. D. (Institute of Chemistry Ceylon, 2023-01)
    Free radicals can be defined as chemical species (atom, molecule or ion) which have a single unpaired valence electron.
  • Perera, K. Sarath. D. (Institute of chemistry Ceylon, 2022-10)
    Metathesis of simple salts is a double replacement reaction as shown below. AX + BY → AY + BX In Greek, “Metathesis” is known as the change of position or transposition. Olefin metathesis (OM) is the catalytic scission ...
  • Perera, K. Sarath. D. (Institute of chemistry Ceylon, 2022-10)
    Polymers play an important role in our day-to-day life. In Greek, poly means “many” and mer means “parts”. Polysaccharides, proteins and nucleic acids are the main bio-polymers/macromolecules. A large number of industries ...
  • Perera, K. Sarath. D. (Institute of chemistry Ceylon, 2022-10)
    Coordination chemistry of transition metals is very important as it helps students to understand various industrial, chemical and biological processes. Hemoglobin and chlorophyll are the two most important compounds ...

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