Novel iridacyclononanes of the type {where L = PPh3, PEt3 and P(OMe)3} have been synthesized from their bis(1-pentenyl)iridium(iii ) precursors through a ring-closing metathesis reaction using Grubbs' 1st generation catalyst.

Akella Sivaramakrishna

Department of Chemistry

School of Advanced Sciences

Vellore Campus

Venkatesh S

Department of Electrical Engineering

School of Electrical Engineering

Sravani C

Pavankumar B.B

Vijayakrishna K

Bhat H.R

Jha P.C

Smith G.S.

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

RSC Advances

Theoretical and experimental investigations on stability and chemistry of organoiridium(iii) complexes

The formation of new C-C bonds by metal complexes always stimulates great interest because these fundamental reaction types possess numerous potential applications in organic synthesis. These reactions are well documented for a variety of transition metal complexes. Herein we report synthesis and characterization of a series of platinum-dialkyl complexes (1-10) of the type [Pt(L2)R2], (where L2 = dppp (1,3-bis(diphenylphosphino)propane or L = PPh3; R = n-butyl to n-nonyl) with a view to understand the organic product distribution patterns on thermolysis. The single crystal X-ray structures of the complexes [Pt(dppp){CH2(CH2)3CH3}2] (1) and [Pt(dppp){CH2(CH2)6CH3}2] (7) are reported. Thermal decomposition studies of these complexes show interesting behaviour; the longer chain dialkyls i.e. C7-C9 complexes undergo reductive elimination whereas the shorter chain dialkyl complexes and C3-C6 prefer only the β-hydride elimination reaction. Possible mechanistic aspects are discussed. Theoretical calculations reveal the strongest delocalizations in both complexes involve the interaction of Pt-C bond pair electron density with the trans positioned Pt-P antibonding orbital and vice-versa. © 2016 Elsevier B.V. All rights reserved.

Journal of Organometallic Chemistry

Synthesis, structure and thermolysis of cis-dialkylplatinum(II) complexes – Experimental and theoretical perceptions

Thermal decomposition studies on platinacycloalkanes of the type Pt(CH 2)mL2 (where m = 6,7,8,10 and L2 = dppp {1,3-bis(diphenylphosphino)propane}, dppe {1,2-bis(diphenylphosphino) ethane} or L = PPh3, tBu3P) are described. The results reveal that the organic product distribution depends on various factors such as the nature of ligand, the metal system, the mode of decomposition, the ring size and the temperature. Possible mechanistic pathways for the formation of various products are discussed. These platinacycloalkanes can be used as models for metallacycloalkane intermediates in catalytic reactions. © 2011 Elsevier B.V. All rights reserved.

Thermolysis studies on platinacycloalkane complexes

Authors group

Jonas Jonasson

ChemInform

ChemInform Abstract: Syntheses, Structures and Optoelectronic Properties of Spiroconjugated Cyclic Ketones.

Journal	Data powered by TypesetRSC Advances
Publisher	Data powered by TypesetRoyal Society of Chemistry (RSC)
ISSN	20462069
Open Access	0