The anionic Re(NO)I52− has been isolated as salts of Cs+, Rb+, and dipyH+. The nonelectrolytic Re(NO)I3L (L stands for 1,10‐phenanthroline and 2,2′‐dipyridyl) and cationic [Re(NO)IL2]PtCl6 have also been prepared. From a solution of Re(NO)(OH)3 in HI, compound of formula Re(H2O)(NO)(OH)I2 has been isolated, pyrolysis of which yielded Re(H2O)0.5(NO)(OH)2I. Measurements of electronic and i.r. spectra and magnetic moments have been carried out. The properties of the iodo derivatives have been compared with those of the corresponding fluoro, chloro and bromo complexes. Copyright © 1981 Verlag GmbH &amp; Co. KGaA, Weinheim

T K JANA

S RAKSHIT

P BANDYOPADHYAY

B K 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

ZAAC â€ Journal of Inorganic and General Chemistry

Hydrated nitrosotrichlororhenium, Re(NO)Cl3 · sH2O cannot be desiccated to the anhydrous product. Hydrogen chloride is expelled and [Re(H2O)(NO)(OH)Cl2] and [Re(H2O)0.5(NO) (OH)2Cl] are produced depending on the conditions of the reactions. Potentiometric studies have indicated that in aqueous ethanolic solutions, the trichloro complex rapidly liberates two equivalents of hydrogen ions while the release of chloride ions are time dependent. Two equivalents of chloride ions are, however, present in a equilibrium system. The third chlorine atom is rigidly bound to the rhenium atom. A chloride bridged structure has been proposed. Copyright © 1977 Verlag GmbH &amp; Co. KGaA, Weinheim

Studies on the Hydrolysis of Nitrosotrichlororhenium

Re(NO)Br3 has been prepared by different methods. The anionic [Re(NO)Br5]-2 has been isolated as salts of Cs+, Rb4 , (pyH)+ and LH+ (L stands for 1,10-phenanthroline and 2,2'-dipyridyl ions. The non-electrolytic [Re(NO)Br3L] and cationic [Re(NO)(phen)2Br]ptCl6 have also been prepared. Measurement of electronic and i.r. spectra and magnetic moments have been carried out.

Journal of Inorganic and Nuclear Chemistry

Bromonitrosyl complexes of rhenium

Nitric oxide reacts with hydrated ReO2 in aqueous suspension at 70–80°C to produce quantitatively Re(NO)(OH)3, ReO 4− and NH 4+. [Re(NO)Cl5]2− and ReO 4− are produced in stoichiometric quantities by the reaction of either NO with ReO2 suspension in 6 N HCl or by the action of a mixture of NO and HCl with an aqueous ethanolic or aqueous suspension of ReO2 at 70–80°C. Passage of NO over 1,10‐phenanthrolinium hexahalorhenate(IV) at 220°C produces nitrosyl halide, hydrogen halide and [Re(NO) (phen)Cl3] or [Re(NO)(phen)Br3]. Copyright © 1973 Verlag GmbH &amp; Co. KGaA, Weinheim

Reaction of nitric oxide with tetravalent rhenium compounds

Preparation of pyridine derivatives of ReCl3(NO) viz. (pyH)2ReCl5(NO), pyH[ReCl4py(NO)], H[ReCl4py(NO)], K[ReCl4py(NO)], Ag[ReCl4py(NO)] and [ReCl3py2(NO)] are described. All these compounds are stable solids. They are characterised by their analytical composition, spectral data, conductance and magnetic moment values. Copyright © 1972 Verlag GmbH &amp; Co. KGaA, Weinheim

Pyridino Nitrosyl Complexes of Rhenium

Preparation and properties of several highly stable nitroso complexes of rhenium viz. ReCl3(NO), Re(OH)3(NO)3 M2ReCl5(NO) where M is Cs, K and NH4 are described. These are analogous to the corresponding ruthenium complexes. The oxidation number of the ‘ReNO’ unit as a whole, is +3 but that of the rhenium atom cannot be determined. The nitric oxide stretching band lies within the range of 1710–1920 cm−1. The cesium and potassium salts are weakly paramagnetic at room temperature. Copyright © 1972 Verlag GmbH &amp; Co. KGaA, Weinheim

Journal	ZAAC â€ Journal of Inorganic and General Chemistry
Publisher	-
ISSN	0044-2313