The structure of ethylenedibiguanide Mn(III) nitrate monohydrate has been determined using Mo Kα radiation. The complex is triclinic:P-1, a=9.412(2), b=11.452(3), c=8.635(1) Å, α= 101.10(2)°, β=102.45(2)° and γ=102.13(2)°. The structure was solved by the heavy-atom method, and refined by full-matrix least-squares to an R value of 0.024 for 3369 observed reflections. The disposition and nature of the metal-ligand bond in this and related compounds have been discussed. The crystal structure of the present compound is not in agreement with that proposed from chemical evidence. © 1990 Plenum Publishing Corporation.

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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

Ethylenedibiguanide-a particularly interesting ligand in relation with the crystal structure of metal complexes

Journal of Crystallographic and Spectroscopic Research

Essentials of Internal Medicine

General Examination/Survey

Insight

Craddock, P., The public library and blind people. a survey and review o f current practice (LIR Report 36), British Library, 1985, 102pp, £15.00, ISBN 0-7123-3051-8. Available from British Library Publications Sales Unit, Boston Spa, Wetherby, West Yorkshire LS2 3 7BQ

Journal of Molecular Structure

Computing aspects of crystal structure determination

Computers & Chemistry

Parst: A system of fortran routines for calculating molecular structure parameters from results of crystal structure analyses

Acta Crystallographica Section A

Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides

Journal	Journal of Crystallographic and Spectroscopic Research
Publisher	Kluwer Academic Publishers-Plenum Publishers
ISSN	0277-8068