Jessy Emmanuel; Dr.Prathapachandra Kurup,M R(Cochin University Of Science And Technology, July 26, 2012)
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Abstract:
Supra molecular architectures of coordination complexes of liydrazones
through non covalent interactions have been explored. Molecular self—assernbly
driven by weak interactions such as hydrogen— bonding, K '”T[, C-1-I‘ "TE, van
der Waals interactions, and so forth are currently of tremendous research
interest in the fields of molecule based materials. The directional properties of
the hydrogembonding interaction associate discrete molecules into aggregate
structures that are sufficiently stable to be considered as independent chemical
species. Chemistry can borrow nature’s strategy to utilize hydrogen-bonding as
Well as other noncovalent interactions as found in secondary and tertiary
structures of proteins such as the double helix folding of DNA, hydrophobic
selflorganization of phospholipids in cell membrane etc. In supramolecular
chemistry hydrogen bonding plays an important role in forming a variety of
architectures. Thus, the wise modulation and tuning of the complementary sites
responsible for hydrogen—bond formation have led to its application in
supramolecular electronics, host-guest chemistry, self-assembly of molecular
capsules, nanotubes etc. The work presented in this thesis describes the synthesis and
characterization of metal complexes derived from some substituted
aroylhydrazones. The thesis is divided into seven chapters.
Description:
Department of Applied Chemistry, Cochin University of Science and
Technology
Marthakutty, Joseph; Dr.Prathapachandra Kurup,M R(Cochin University Of Science And Technology, July 19, 2004)
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Abstract:
Aqua complex ions of metals must have existed since the appearance of
water on the earth, and the subsequent appearance of life depended on, and may
even have resulted from the interaction of metal ions with organic molecules.
Studies on the coordinating ability of metal ions with other molecules and anions
culminated in the theories of/\lfred Werner. Thereon the progress in the studies of
metal complex chemistry was rapid. Many factors, like the utility and economic
importance of metal chemistry, the intrinsic interest _in many of the compounds and
the intellectual challenge of the structural problems to be solved, have contributed
to this rapid progress. X—ray diffraction studies further accelerated the progress.
The work cited in this thesis was carried out by the author in the
Department of Applied Chemistry during 2001-2004. The primary aim of these
investigations was to synthesise and characterize some transition metal complexes
of 2-benzoylpyridine N(4)-substituted thiosemicarbazones and to study the
antimicrobial activities of the ligands and their metal complexes. The work is
divided into eight chapters
Description:
Department of Applied Chemistry
Cochin University of Science and Technology