Institute of Chemistry Ceylon Digital Repository

Browsing Chemistry in Sri Lanka by Title

Browsing Chemistry in Sri Lanka by Title

Sort by: Order: Results:

  • 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 ...
  • 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, ...
  • 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 ...
  • 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, 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, 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); ...
  • Perera, K. Sarath. D.; De Silva, Shanali (Institute of Chemistry Ceylon, 2024-01)
    Ionic liquids (ILs) are salts that exist in the liquid state below 100 o C or at room temperature. They are also referred to as molten salts, ionic fluids, liquid organic salts, neoteric solvents, and designer solvents
  • 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 ...
  • Karunarathne, Mahesh C. (Institute of Chemistry, 2019-01)
  • Samarakkody, Ann Sanoji (Institute of chemistry Ceylon, 2022-06)
    Cells in an organism are under constant exposure to extrinsic and intrinsic stressors. Molecular mechanisms are in place to dampen the detrimental effects on the cell at the level of cellular pathways and also at ...
  • Rajapaksha, D; Rathnayake, P; Rosa, S. R. D (Institute of Chemistry Ceylon, 2022-10)
    Cancer is the major cause of morbidity and mortality around the globe. Cancer shows a significant annual increase, approximately 30,000 new cases were recorded in 2021. It has become one of the major health burdens in ...
  • Perera, K. Sarath. D. (Institute of Chemistry, 2021-06)
    Mass spectrometry is an analytical technique used to obtain information on the structure and molecular weight/accurate mass of a given compound. The main components of the mass spectrometer are the ion source, mass ...
  • Fernando, Wasundara (Institute of chemistry Ceylon, 2022-06)
    Breast cancer is the most common cancer among women, with a new breast cancer being diagnosed every 29 seconds. Metastatic triple-negative breast cancer (TNBC) is an aggressive breast cancer subtype that responds poorly ...
  • Rajapakse, Wijeyadasa (Institute of chemistry Ceylon, 2023-06)
    It is with great pleasure that I issue this message on the occasion of the 52nd Annual Sessions, 2023 & 82nd Anniversary Celebrations of the Institute of Chemistry Ceylon which is one of the oldest professional bodies ...
  • Perera, K. Sarath. D. (Institute of Chemistry, 2020-09)
    Carbon monoxide is a good π-acceptor and the M-C bond in metal carbonyls [M(CO)n ] has a significant π character. Thus, the M-C bond is strengthened and the carbon oxygen bond is weakened with the increase in back bonding.
  • Perera, K. Sarath. D. (Institute of Chemistry Ceylon, 2021-04)
    We know that main group hydrides such as LiAlH4 and NaBH4 are the common reducing agents used by organic chemists to reduce aldehydes, ketones and carboxylic acids. Transition metal hydrides act as ...
  • 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, 2021-06)
    In 1960, chemists at BASF developed the carbonylation of methanol into acetic acid. CH3 OH + CO CH3 COOH Monsanto process Monsanto Company introduced a new catalytic system in 1966. It is now known as the Monsanto ...
  • Gunasekera, Angelo (Institute of chemistry Ceylon, 2022-06)
    Bacterial and viral disease outbreaks have always been a threat to global public health, making affordable, rapid and accurate diagnostics highly important tools to slow down the spread of pathogens and decrease ...
  • Perera, Tharushi .A (2019-09)
    I sincerely thank Dr. Ranmal Gunatilake, Hon. Editor, Institute of Chemistry Ceylon for the opportunity to address the Chemistry in Sri Lanka readers through the medium of this guest editorial. It is a real honor ...

Search DSpace


Advanced Search

Browse

My Account