Iodination reactions of various phosphiniminocyclotrithiazenes [R 3PNS3N3; R = (i) phenyl-, (ii) morpholino-, and (iii) p-chlorophenyl-] have been studied under different experimental conditions. Iodination of Ph3PNS3N3 yields interesting products such as [(Ph3PN)2S3N 3]I3, ((Ph3PN)3S)2I 4, (Ph3PNH2)I3, ((Ph 3PSI2)2I2, and [(Ph 3PN)3SO]2I6 depending on the experimental conditions. All the products have been isolated and characterized by the spectroscopic and analytical techniques. Copyright © Taylor &amp; Francis Group, LLC.

Swarnalatha P

Department of Information Security

School of Computer Science and Engineering

Vellore Campus

Akella Sivaramakrishna

Department of Chemistry

School of Advanced Sciences

Madhugiri N. Sudheendra Rao

Sivaramakrishna A

Sudheendra Rao M.N.

Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

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VIT University

Studies on Iodination Reactions of Phosphiniminocyclotrithiazenes

Synthesis and Reactivity in Inorganic, Metal-Organic and Nano-Metal Chemistry

Electrochemical (polarographic, cyclic voltammetric, and coulometric) and coordination behaviour of several symmetrically and unsymmetrically substituted phosphiniminocyclotrithiazenes have been studied. Polarograms of R3PN-S3N3 R = C6H5, p-ClC6H4, p-H3CC6H4, and (OC4H8N)), Ph2OC4H8N)PN-S3N3, and Ph(OC4H8N)2PN-S3N3 give two cathodic waves. Cyclic voltammograms of Ph3PN-S3N3 (1) and (OC4H8N)3PN-S3N3 (2) reveal nearly the same oxidation peak potential but different reduction potentials. Controlled potential electrolysis of 1 and 2 at +0.6 V indicates exocyclic cleavage and ring degradation. Cathodic reduction behaviour of Ph3PN-S3N3 suggests the possibility for the) formation of 1,5-(Ph)3(PN)2S4N4 under electrochemical conditions. Reaction of nickel chloride hexahydrate with heterocycle 1 in 1:2 molar ratio in acetonitrile affords the complex, ([NiS2N2H2] (A) (90% yield) and [Ph3PNH2]Cl salt as products. Analogous reactions with other ligands of this type (two symmetrical (sym.) and three unsymmetrical (unsym.)) except 2 also give A, while ligand 2 reacts with anhyd NiCl2 in an equimolar ratio to afford a dark green, square-planar complex ((OC4H8N)3(PN-S3(N·NiCl 2 (B)) whose ESCA results assist in providing its coordination details. The study reveals a high tendency of these heterocycles to different types of ring cleavage.

Canadian Journal of Chemistry

Studies on electrochemical and coordination behaviour of phosphiniminocyclotrithiazenes

Electrochimica Acta

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European Journal of Organic Chemistry

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Phosphorus, Sulfur, and Silicon and the Related Elements

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Inorganic Chemistry

Ab Initio Study of the Geometry, Stability, and Aromaticity of the Cyclic S2N3+Cation Isomers and Their Isoelectronic Analogues

Mendeleev Communications

Synthesis of condensed sulfur- and nitrogen-containing heterocycles via polar cycloaddition of hetarene sulfenyl chlorides to a C–C multiple bond

Studies on iodination reactions of phosphiniminocyclotrithiazenes

Journal	Synthesis and Reactivity in Inorganic, Metal-Organic and Nano-Metal Chemistry
ISSN	15533174
Open Access	No