Venkatesh S

Department of Electrical Engineering

School of Electrical Engineering

Vellore Campus

Akella Sivaramakrishna

Department of Chemistry

School of Advanced Sciences

Sravani C

Sivaramakrishna A

Vijayakrishna K

Clayton H.S

Moss J.R

Moberg V

Su H.

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

Polyhedron

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

Reactivity of platinum-based trinuclear carbonyl clusters of the type L2PtRu2(CO)8, where L2 = 1,3-bis(diphenylphosphino)propane (dppp) and 1,2-bis(diphenylphosphino)ethane (dppe), is described. Oxidative addition reactions of these bimetallic carbonyl clusters with methyl iodide reveal the formation of products such as L2PtMeI and L2PtI2 and Ru3(CO)12. On heating with diphenylacetylene, L2PtRu2(CO)8 gave high yields of the corresponding products L2PtRu2(CO)6(μ3-η2-PhC2Ph) (L = PPh3 or L2 = dppe or dppp). Hydrogenation of (dppe)PtRu2(CO)6(μ-η2-PhC2Ph) yields stilbene and a new carbonyl cluster, [(dppe)2Pt2Ru(CO)4] possessing two platinum centers of the type {Pt2Ru}. All the products were isolated and characterized by FT-IR, NMR, and mass spectral analysis. The present article describes the synthesis and reactivity of platinum-based trinuclear carbonyl clusters L2PtRu2(CO)8 where L2 = 1,3-bis(diphenylphosphino)propane (dppp) and 1,2-bis(diphenylphosphino)ethane (dppe). Oxidative addition reactions of these bimetallic carbonyl clusters with methyl iodide yield products such as L2PtMeI and L2PtI2 and Ru3(CO)12. On heating with diphenylacetylene, L2PtRu2(CO)8 gives high yields of the corresponding products like L2PtRu2(CO)6(μ3-η2-PhC2Ph) (L = PPh3 or L2 = dppe or dppp). Hydrogenation of (dppe)PtRu2(CO)6(μ3-η2-PhC2Ph) yields stilbene and a new carbonyl cluster, [(dppe)2Pt2Ru(CO)4] possessing two platinum centers of the type {Pt2Ru}. All the products were isolated and characterized by FT-IR, NMR, and mass spectral analysis. © 2015 Taylor and Francis.

Journal of Coordination Chemistry

Studies on reactivity of platinum-based heterobimetallic carbonyl clusters

Applied Organometallic Chemistry

Alkenyl complexes of platinum group metals: a platform for diverse reactivity patterns

Physical Review B

Erratum: Accurate and simple analytic representation of the electron-gas correlation energy [Phys. Rev. B 45, 13244 (1992)]

Inorganica Chimica Acta

Novel reactivity aspects of cis-bis(1-alkenyl)platinum(II) compounds of the type Pt(CH2(CH2)nCHCH2)2L2 (where L2=dppp, dppe, dppm and n=1, 2)

Synthesis and reactivity of platinacycloalkanes

Molecular Simulation

A DFT computational study of phosphine ligand dissociationversushemilability in a Grubbs-type precatalyst containing a bidentate ligand during alkene metathesis

Coordination Chemistry Reviews

Platinum based mixed-metal clusters (PtnMm(CO)xLy, M=Ru or Os; n+m=2 to 10 and Ly=other ligands)—Synthesis, structure, reactivity and applications

Facile synthesis of platinum based heterobimetallic carbonyl clusters from bis(1-alkenyl)Pt(II) precursors

Journal	Data powered by TypesetPolyhedron
Publisher	Data powered by TypesetElsevier BV
ISSN	0277-5387
Open Access	0