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Organobimetallic Ru II -Re I 4-ethynylpyridyl complexes: structures and non-linear optical properties

Ge, Qingchun; Corkery, Timothy; Samoc, Marek; Hor, T S Andy; Humphrey, Mark

Description

A series of heterobimetallic complexes, [RuCp(CCpy-4)(P-P)][Re(CO) 3(N-N)]+ (P-P = dppf, N-N = bpy 5, Me2bpy 6, tBu2bpy 7, phen 8, tpy 9; P-P = 2PPh3, N-N = bpy 10) have been obtained from Lewis addition between the metalloligands [RuCp(CCpy-4)(P-P)] (P-P = dppf 1; 2PPh32) and solvent-stabilised fac-[Re(CH3CN)(CO)3(N-N)]+. All new complexes 5-10, together with fac-[ReBr(CO)3(tpy)] (3) and fac-[Re(CH 3CN)(CO)3(tpy)][PF6] (4), are characterized by solution spectroscopy; 3 and 5-9 are also...[Show more]

dc.contributor.authorGe, Qingchun
dc.contributor.authorCorkery, Timothy
dc.contributor.authorSamoc, Marek
dc.contributor.authorHor, T S Andy
dc.contributor.authorHumphrey, Mark
dc.date.accessioned2015-12-10T22:39:17Z
dc.identifier.issn1477-9226
dc.identifier.urihttp://hdl.handle.net/1885/57099
dc.description.abstractA series of heterobimetallic complexes, [RuCp(CCpy-4)(P-P)][Re(CO) 3(N-N)]+ (P-P = dppf, N-N = bpy 5, Me2bpy 6, tBu2bpy 7, phen 8, tpy 9; P-P = 2PPh3, N-N = bpy 10) have been obtained from Lewis addition between the metalloligands [RuCp(CCpy-4)(P-P)] (P-P = dppf 1; 2PPh32) and solvent-stabilised fac-[Re(CH3CN)(CO)3(N-N)]+. All new complexes 5-10, together with fac-[ReBr(CO)3(tpy)] (3) and fac-[Re(CH 3CN)(CO)3(tpy)][PF6] (4), are characterized by solution spectroscopy; 3 and 5-9 are also characterized by single-crystal X-ray crystallography. The terpyridine ligands in 3 and 9 are in an unusual η2-bidentate coordination mode with a pendant pyridyl. Electrochemical studies showed successive metal-based oxidations and a ligand-centered reduction in 5-10. Significant oxidation changes are observed at the Ru(II) and Re(I) centers in 5-10 when compared with their respective monometallic components. Cubic nonlinearities of 5-10 determined by the Z-scan technique at 750 nm reveal two-photon absorption that increases significantly on progression from Ru(II) monomeric precursors to heterobimetallics, suggesting NLO enhancement upon heterometallic complex formation.
dc.publisherRoyal Society of Chemistry
dc.sourceDalton Transactions
dc.subjectKeywords: Bidentate coordination mode; Cubic nonlinearities; Electrochemical studies; Hetero bimetallic complexes; Heterobimetallics; Heterometallic complexes; Metalloligands; Monomeric precursors; Non-linear optical properties; Pyridyl; Single crystal X-ray crysta
dc.titleOrganobimetallic Ru II -Re I 4-ethynylpyridyl complexes: structures and non-linear optical properties
dc.typeJournal article
local.description.notesImported from ARIES
dc.date.issued2009
local.identifier.absfor039904 - Organometallic Chemistry
local.identifier.ariespublicationu4217927xPUB387
local.type.statusPublished Version
local.contributor.affiliationGe, Qingchun, National University of Singapore
local.contributor.affiliationCorkery, Timothy, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationHumphrey, Mark, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationSamoc, Marek, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationHor, T S Andy, National University of Singapore
local.description.embargo2037-12-31
local.bibliographicCitation.issue31
local.bibliographicCitation.startpage6192
local.bibliographicCitation.lastpage6200
local.identifier.doi10.1039/b902800e
dc.date.updated2016-02-24T10:42:57Z
local.identifier.scopusID2-s2.0-68149106079
local.identifier.thomsonID000268438800018
CollectionsANU Research Publications

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