Article: Heteroleptic ruthenium(II) complex-containing polymers and their bandgap tuning and photosensitizing properties

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Publisher Website: 10.1002/marc.201100756
Scopus: eid_2-s2.0-84859578880
PMID: 22318894

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Title	Heteroleptic ruthenium(II) complex-containing polymers and their bandgap tuning and photosensitizing properties
Authors	Cheung, WK1 Mak, CSK1 Chan, WK1
Keywords	Bandgap Engineering Conjugated Polymers Metal-Containing Polymers Photovoltaic Ruthenium
Issue Date	2012
Citation	Macromolecular Rapid Communications, 2012, v. 33 n. 6-7, p. 585-591 [How to Cite?] DOI: http://dx.doi.org/10.1002/marc.201100756
Abstract	A new synthetic route to novel ruthenium-containing polymers is reported. [Ru(L)(L′)Cl 2] type complexes (L and L′ = bidentate N^N ligands) with a dibromo-substituted ligand were polymerized by Stille cross-coupling reaction. The subsequent displacement of chloride ligands by thiocyanate was highly effective and the structures of the target polymers were fully characterized. The main chain absorption showed a significantly red-shift upon metal coordination and the metal-to-ligand charge transfer (MLCT) band of the complex enhanced the photon harvesting ability of the polymer. The extent of π-electron delocalization of the ancillary ligands also showed interesting effects on the electronic properties of the polymers. The photosensitizing and bandgap tuning properties of these Ru(II) complexes demonstrated a new avenue to develop new classes of optoelectronic materials. © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
ISSN	1022-1336 2011 Impact Factor: 4.596 2011 SCImago Journal Rankings: 0.424
DOI	http://dx.doi.org/10.1002/marc.201100756
References	References in Scopus

DC Field	Value
dc.contributor.author	Cheung, WK
dc.contributor.author	Mak, CSK
dc.contributor.author	Chan, WK
dc.date.accessioned	2012-10-08T03:21:41Z
dc.date.available	2012-10-08T03:21:41Z
dc.date.issued	2012
dc.description.abstract	A new synthetic route to novel ruthenium-containing polymers is reported. [Ru(L)(L′)Cl 2] type complexes (L and L′ = bidentate N^N ligands) with a dibromo-substituted ligand were polymerized by Stille cross-coupling reaction. The subsequent displacement of chloride ligands by thiocyanate was highly effective and the structures of the target polymers were fully characterized. The main chain absorption showed a significantly red-shift upon metal coordination and the metal-to-ligand charge transfer (MLCT) band of the complex enhanced the photon harvesting ability of the polymer. The extent of π-electron delocalization of the ancillary ligands also showed interesting effects on the electronic properties of the polymers. The photosensitizing and bandgap tuning properties of these Ru(II) complexes demonstrated a new avenue to develop new classes of optoelectronic materials. © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
dc.description.nature	Link_to_subscribed_fulltext
dc.identifier.citation	Macromolecular Rapid Communications, 2012, v. 33 n. 6-7, p. 585-591 [How to Cite?] DOI: http://dx.doi.org/10.1002/marc.201100756
dc.identifier.doi	http://dx.doi.org/10.1002/marc.201100756
dc.identifier.epage	591
dc.identifier.issn	1022-1336 2011 Impact Factor: 4.596 2011 SCImago Journal Rankings: 0.424
dc.identifier.issue	6-7
dc.identifier.pmid	22318894
dc.identifier.scopus	eid_2-s2.0-84859578880
dc.identifier.spage	585
dc.identifier.uri	http://hdl.handle.net/10722/168618
dc.identifier.volume	33
dc.language	eng
dc.publisher.place	Germany
dc.relation.ispartof	Macromolecular Rapid Communications
dc.relation.references	References in Scopus
dc.subject.mesh	Coordination Complexes - chemical synthesis - chemistry
dc.subject.mesh	Molecular Structure
dc.subject.mesh	Palladium - chemistry
dc.subject.mesh	Photochemistry - instrumentation
dc.subject.mesh	Polymers - chemical synthesis - chemistry
dc.subject.mesh	Ruthenium - chemistry
dc.subject	Bandgap Engineering
dc.subject	Conjugated Polymers
dc.subject	Metal-Containing Polymers
dc.subject	Photovoltaic
dc.subject	Ruthenium
dc.title	Heteroleptic ruthenium(II) complex-containing polymers and their bandgap tuning and photosensitizing properties
dc.type	Article

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The University of Hong Kong

Article: Heteroleptic ruthenium(II) complex-containing polymers and their bandgap tuning and photosensitizing properties

The HKU Scholars Hub has contact details for these author(s).