Institute of Chemistry Ceylon Digital Repository

Browsing Student Corner by Issue Date

Browsing Student Corner by Issue Date

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  • Basic Mathematics Made Simple 
    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
  • 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, ...
  • Arene Metal Complexes 
    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 ...
  • Nucleophilic Substitution Reactions 
    Perera, K. Sarath. D. (Institute of Chemistry Ceylon, 2021-09)
    Organic chemistry is basically the study of synthesis, reactions, properties, and structures of carbon-containing compounds. Organic reactions can be classified into four main types: addition, elimination (E), substitution, ...
  • 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 ...
  • 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 ...
  • New definitions of SI Units and Physical Chemistry-Beauty of Physical Chemistry – Part 2 
    Ratnaweera, Chinthaka Nadun (Institute of Chemistry Ceylon, 2022-06)
    In the previous article we learnt how fixed values of hyperfine transition frequency of Cs, speed of light, Planck constant, and Avogadro constant are used to define SI units of time, length, mass and amount of substances ...
  • UV-visible Spectroscopy 
    Perera, K.Sarath.D (Institute of Chemistry Ceylon, 2022-06)
    Molecules have different energy states: electronic, vibrational, rotational, and nuclear. Quantized energy is responsible for each transition (e.g., rotational - microwaves, infrared - vibrational) within the ...
  • 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 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 ...
  • Metathesis and Polymerization of Olefins 
    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 ...
  • 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 ...
  • Suppressed Ion Chromatography 
    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.
  • Palladium Catalyzed Coupling Reactions 
    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.
  • Alkyl Metal Complexes 
    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.
  • 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.
  • 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.
  • 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.
  • Styx Numbers and Rules of Boron Hydrides 
    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 ...
  • 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) ...

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