The charge on each atom of some ethers and chloro‐substituted ethers, their dipole moments and the quadrupole coupling constants of the chloroethers have been calculated with the method suggested by Del Re. There appears to be an intimate connection between the charge density on the oxygen atoms and the capacity of forming hydrogen bond. Copyright © 1970 John Wiley & Sons, Inc.

K GHOSH

S BHATTACHARYYA

P SEN

University of Calcutta (informally known as Calcutta University or CU) is a collegiate public state university located in Kolkata, West Bengal, India.&nbsp;Within India it is recognized as a &quot;Five-Star University&quot; and accredited &quot;A&quot; Grade by National Assessment and Accreditation Council.

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The University of Calcutta has secured the Fifth position among the Universities of India in the prestigious &quot;Indian University Ranking 2019&quot; list, released by the NIRF of the Ministry of Human Resource Development, Government of India.

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It was established on 24 January 1857, and was one of the first institutions in Asia to be established as a multidisciplinary and Western-style university. Its alumni and faculty include several heads of state, heads of government, social reformers, prominent artists, only academy award winner and Dirac medal winner in India, many Fellows of the Royal Society and five Nobel laureates as of 2019 which is highest in South Asia.

University Of Calcutta

International Journal of Quantum Chemistry

Various aspects of Del Re's method, its extension and correlation with important properties such as nuclear quadrupole coupling constants and spin‐spin coupling constants are discussed. The Del Re parameters for the C–I bond have been evaluated and those for the C–F bond modified. The bond energies and the heats of formation for several σ‐systems have been calculated; the energies of a “bond‐orbital” for several alkanes have been found to be related with their ionization potentials. Copyright © 1972 John Wiley & Sons, Inc.

Theoretical calculations on Ïƒâ€systems. III. Alkyl halides and alkanes

The effect of hydrogen bonding on the near ultraviolet absorption spectra of pyrrole, 2-methylindole, carbazole, and diphenylamine was studied with diethyl ether, tetrahydrofuran, and 1,4-dioxane. The results show that the π → π* bands of the proton donor shift toward longer wave lengths and using this change of absorption spectrum, the equilibrium constant between proton donor and acceptor was evaluated. From the result it was concluded that proton accepting power decreases in the order 1,4-dioxane > tetrahydrofuran > diethyl ether and the proton donating power increases in the order diphenylamine < pyrrole < 2-methylindole < carbazole. Some discussions also were made on the mechanism of hydrogen bonding.

Journal of Physical Chemistry

Hydrogen bonding effect on the electronic absorption of some secondary amines

Who's Who

Levin, David Saul, (born 28 Jan. 1962), Chief Executive, McGraw-Hill Education, New York, since 2014

Talanta

Tables of interatomic distances and configuration in molecules and ions Compiled by H.J.M. Bowen, J. Donohue, D.G. Jenkin, Olga Kennard, P.J. Wheatley, D.H. Whiffen. Scientific Editor, L.E. sutton. Assistant Scientific Editor, D.G. jenkin. General Editors, A.D. mitchell, L.C. cross. Special Publication No. 11. London: The Chemical Society, Burlington House, W.I. 1958. 2 guineas. $6.00

Journal	International Journal of Quantum Chemistry
Publisher	-
ISSN	0020-7608