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Structural chemistry is a part of chemistry and deals with spatial structures of molecules (in the gaseous, liquid or solid state) and solids (with extended structures that cannot be subdivided into molecules). For structure elucidation [1] a range of different methods is used.
Quantitative structure–activity relationship models (QSAR models) are regression or classification models used in the chemical and biological sciences and engineering. Like other regression models, QSAR regression models relate a set of "predictor" variables (X) to the potency of the response variable (Y), while classification QSAR models ...
The Regional Institute of Education (RIE, formerly known as Regional College of Education), is a constituent unit of the National Council of Educational Research and Training (NCERT), Delhi. The RIEs are set up in 1963 by the Government of India in different parts covering various regions.
For 5-year BS-MS programs, In the first year, all students are introduced to basic sciences, i.e., Biological, Chemical, Mathematical, Physical and Earth Sciences, as well as Computer Programming and Humanities courses. In the second year, the students select three pre-major subjects from the first five disciplines mentioned above.
Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials publishes scientific articles on structural science. [1] [2] According to the journal: "Knowledge of the arrangements of atoms, including their temporal variations and dependencies on temperature and pressure, is often the key to understanding physical and chemical phenomena and is crucial for the design of ...
Theories of chemical structure were first developed by August Kekulé, Archibald Scott Couper, and Aleksandr Butlerov, among others, from about 1858. [4] These theories were first to state that chemical compounds are not a random cluster of atoms and functional groups, but rather had a definite order defined by the valency of the atoms composing the molecule, giving the molecules a three ...
The fcc structure is a close-packed structure unlike the bcc structure; thus the volume of the iron decreases when this transformation occurs. Crystallography is useful in phase identification. When manufacturing or using a material, it is generally desirable to know what compounds and what phases are present in the material, as their ...
There are about 400 graduate students pursuing research towards doctoral degree; about 50 students are awarded Ph.D. degree every year; and the young talent pool adds in every few years. NCL publishes over 400 research papers annually in the field of chemical sciences and over 60 patents worldwide.