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  • Chemical Constituents of the Golden Spice – Turmeric 
    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.
  • Chemistry of Radicals 
    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.
  • Chirality of Molecules 
    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.
  • Crystal Field Theory 
    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.
  • Cyclic Voltammetry 
    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 ...
  • Defense and Destruction: Insight of Chemical-based Weapons 
    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.
  • Diels-Alder Reaction 
    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) ...
  • Electrophilic attack on Coordinated Ligands 
    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
  • Elements in Biology 
    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 ...
  • Hydrogenation of olefins 
    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.
  • Infrared Spectroscopy 
    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 ...
  • Insertion and deinsertion reactions 
    Perera, K. Sarath. D. (Institute of Chemistry Ceylon, 2020-09)
    n an insertion reaction, Y gets transferred on to a ligand (AB).
  • Introduction to Coordination Chemistry 
    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 ...
  • Introduction to Heterocyclic Chemistry 
    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 ...
  • Introduction to NMR Spectroscopy 
    Perera, K.Sarath. D. (Institute of Chemistry Ceylon, 2021-09)
    Nuclear Magnetic Resonance spectroscopy is probably the most powerful tool available for structure determination of organic, inorganic and organometallic compounds. It is also used by chemists to study mechanisms, ...
  • Introduction to Organic Reaction Mechanisms 
    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 ...
  • Introduction to Organometallic Chemistry 
    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 ...
  • Introduction to Polymer Chemistry 
    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 ...
  • Introduction to Radiochemistry 
    Perera, K. Sarath. D. (Institute of Chemistry Ceylon, 2021-04)
    An atom consists of a very small (about 10–10 m in radius), dense and positively charged nucleus and negatively charged electrons. The nucleus consists of protons (p) and neutrons (n); ...
  • Isomerism in Coordination Compounds 
    Perera, K. Sarath. D. (Institute of Chemistry Ceylon, 2020-01)
    Isomers (compounds with the same chemical formula) can be broadly classified into (i) stereoisomers (e.g. geometrical and optical) with the same connectivity but having different spatial arrangements and (ii) structural ...

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