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  • 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, 2023-01)
    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, 2021-09)
    Arenes are aromatic compounds which can act These complexes with three simple ligands are called as π-electron donors. Organometallic complexes with such ligands are commonly known as arene complexes, arene metal complexes ...
  • Perera, K. Sarath. D. (Institute of Chemistry, 2021-06)
  • 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 ...
  • Haniffa, M.R.M. (Institute of Chemistry Ceylon, 2021-09)
    Let me at the outset, share my thoughts with you regarding basic mathematics and its teaching. It is based on my teaching experience over the past couple of decades and based on what I learned for my O/L
  • 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, 2023-01)
    Free radicals can be defined as chemical species (atom, molecule or ion) which have a single unpaired valence electron.
  • Gunaratna, Medha .J (Institute of Chemistry Ceylon, 2019-09)
    Chirality is the existence of different configurations (three dimensional arrangements) of a substance with an identical chemical formula.
  • Perera, K. Sarath. D. (Institute of Chemistry Ceylon, 2020-05)
    Crystal Field Theory (CFT) supersedes valence bond theory as it provides a simple method to explain the electronic spectra and magnetism of transition metal complexes.
  • 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, 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) ...
  • 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
  • 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, 2021-04)
    Hydrogenation of olefins is one of the simplest reactions, where two hydrogen atoms add across a carbon-carbon double bond to give an alkane.
  • Perera, K.Sarath.D. (Institute of Chemistry Ceylon, 2022-06)
    The energy of most of the molecular vibrations falls into the infrared region (4000 - 400 cm-1) of the electromagnetic spectrum. Infrared (IR) or vibrational spectroscopy is used by organic chemists to: (i) identify functional ...
  • Perera, K. Sarath. D. (Institute of Chemistry Ceylon, 2020-09)
    n an insertion reaction, Y gets transferred on to a ligand (AB).
  • 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 ...
  • Perera, K.Sarath.D. (Institute of Chemistry Ceylon, 2022-06)
    Heterocycles are cyclic structures with at least one atom other than C and H. Most common heteroatoms are N, O and S. A large portion of natural products are heterocyclic compounds and some are being utilized as ...

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