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- Publisher Website: 10.1021/ic034877l
- Scopus: eid_2-s2.0-1642559182
- PMID: 14731046
- WOS: WOS:000188294000051
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Article: Syntheses, Luminescence Behavior, and Assembly Reaction of Tetraalkynylplatinate(II) Complexes: Crystal Structures of [Pt(tBu3trpy)(C≡CC5H4N)Pt(tBu3trpy)](PF6)3 and [Pt2Ag4(C≡CC≡CC6H4CH3-4)8(THF)4]
Title | Syntheses, Luminescence Behavior, and Assembly Reaction of Tetraalkynylplatinate(II) Complexes: Crystal Structures of [Pt(tBu3trpy)(C≡CC5H4N)Pt(tBu3trpy)](PF6)3 and [Pt2Ag4(C≡CC≡CC6H4CH3-4)8(THF)4] |
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Authors | |
Issue Date | 2004 |
Publisher | American Chemical Society. The Journal's web site is located at http://pubs.acs.org/ic |
Citation | Inorganic Chemistry, 2004, v. 43 n. 2, p. 812-821 How to Cite? |
Abstract | A series of tetraalkynylplatinate(II) complexes, (NBu 4) 2[Pt(C≡CR) 4] (R = C 6H 4N-4, C 6H 4N-3, and C 6H 3N 2-5), and the diynyl analogues, (NBu 4) 2[Pt(C≡CC≡ CR) 4] (R = C 6H 5 and C 6H 4CH 3-4), have been synthesized. These complexes displayed intense photoluminescence, which was assigned as metal-to-ligand charge transfer (MLCT) transitions. Reaction of (Bu 4N) 2[Pt(C≡CC 5H 4N-4) 4] with 4 equiv of [Pt( tBu 3trpy)(MeCN)](OTf) 2 in methanol did not yield the expected pentanuclear platinum product, [Pt(C≡CC 5H 4N) 4{Pt tBu 3trpy)} 4](OTf) 6, but instead afforded a strongly luminescent 4-ethynylpyridine-bridged dinuclear complex, [Pt( tBu 3trpy)(C≡CC 5H 4N)Pt( tBu 3trpy)](PF 6) 3, which has been structurally characterized. The emission origin is assigned as derived from states of predominantly 3MLCT [d π(Pt) → π* ( tBu 3trpy) character, probably mixed with some intraligand 3IL [π → π*(C≡)], and ligand-to-ligand charge transfer 3LLCT [π(C≡C) → π*( tBu 3trpy)] character. On the other hand, reaction of (Bu 4N) 2[Pt(C≡CC≡ CC 6H 4CH 3-4) 4] with [Ag(MeCN) 4][BF 4] gave a mixed-metal aggregate, [Pt 2Ag 4(C≡CC≡CC 6H 4CH 3-4) 8(THF) 4]. The crystal structure of [Pt 2Ag 4(C≡CC≡CC 6H 4CH 3-4) 8(THF) 4] has also been determined. A comparison study of the spectroscopic properties of the hexanuclear platinum-silver complex with its precursor complex has been made and their spectroscopic origins were suggested. |
Persistent Identifier | http://hdl.handle.net/10722/167909 |
ISSN | 2023 Impact Factor: 4.3 2023 SCImago Journal Rankings: 0.928 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
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dc.contributor.author | Yam, VWW | en_HK |
dc.contributor.author | Hui, CK | en_HK |
dc.contributor.author | Yu, SY | en_HK |
dc.contributor.author | Zhu, N | en_HK |
dc.date.accessioned | 2012-10-08T03:12:49Z | - |
dc.date.available | 2012-10-08T03:12:49Z | - |
dc.date.issued | 2004 | en_HK |
dc.identifier.citation | Inorganic Chemistry, 2004, v. 43 n. 2, p. 812-821 | en_HK |
dc.identifier.issn | 0020-1669 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/167909 | - |
dc.description.abstract | A series of tetraalkynylplatinate(II) complexes, (NBu 4) 2[Pt(C≡CR) 4] (R = C 6H 4N-4, C 6H 4N-3, and C 6H 3N 2-5), and the diynyl analogues, (NBu 4) 2[Pt(C≡CC≡ CR) 4] (R = C 6H 5 and C 6H 4CH 3-4), have been synthesized. These complexes displayed intense photoluminescence, which was assigned as metal-to-ligand charge transfer (MLCT) transitions. Reaction of (Bu 4N) 2[Pt(C≡CC 5H 4N-4) 4] with 4 equiv of [Pt( tBu 3trpy)(MeCN)](OTf) 2 in methanol did not yield the expected pentanuclear platinum product, [Pt(C≡CC 5H 4N) 4{Pt tBu 3trpy)} 4](OTf) 6, but instead afforded a strongly luminescent 4-ethynylpyridine-bridged dinuclear complex, [Pt( tBu 3trpy)(C≡CC 5H 4N)Pt( tBu 3trpy)](PF 6) 3, which has been structurally characterized. The emission origin is assigned as derived from states of predominantly 3MLCT [d π(Pt) → π* ( tBu 3trpy) character, probably mixed with some intraligand 3IL [π → π*(C≡)], and ligand-to-ligand charge transfer 3LLCT [π(C≡C) → π*( tBu 3trpy)] character. On the other hand, reaction of (Bu 4N) 2[Pt(C≡CC≡ CC 6H 4CH 3-4) 4] with [Ag(MeCN) 4][BF 4] gave a mixed-metal aggregate, [Pt 2Ag 4(C≡CC≡CC 6H 4CH 3-4) 8(THF) 4]. The crystal structure of [Pt 2Ag 4(C≡CC≡CC 6H 4CH 3-4) 8(THF) 4] has also been determined. A comparison study of the spectroscopic properties of the hexanuclear platinum-silver complex with its precursor complex has been made and their spectroscopic origins were suggested. | en_HK |
dc.language | eng | en_US |
dc.publisher | American Chemical Society. The Journal's web site is located at http://pubs.acs.org/ic | en_HK |
dc.relation.ispartof | Inorganic Chemistry | en_HK |
dc.title | Syntheses, Luminescence Behavior, and Assembly Reaction of Tetraalkynylplatinate(II) Complexes: Crystal Structures of [Pt(tBu3trpy)(C≡CC5H4N)Pt(tBu3trpy)](PF6)3 and [Pt2Ag4(C≡CC≡CC6H4CH3-4)8(THF)4] | en_HK |
dc.type | Article | en_HK |
dc.identifier.email | Yam, VWW: wwyam@hku.hk | en_HK |
dc.identifier.email | Zhu, N: nzhu@hkucc.hku.hk | en_HK |
dc.identifier.authority | Yam, VWW=rp00822 | en_HK |
dc.identifier.authority | Zhu, N=rp00845 | en_HK |
dc.description.nature | link_to_subscribed_fulltext | en_US |
dc.identifier.doi | 10.1021/ic034877l | en_HK |
dc.identifier.pmid | 14731046 | - |
dc.identifier.scopus | eid_2-s2.0-1642559182 | en_HK |
dc.identifier.hkuros | 91296 | - |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-1642559182&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.volume | 43 | en_HK |
dc.identifier.issue | 2 | en_HK |
dc.identifier.spage | 812 | en_HK |
dc.identifier.epage | 821 | en_HK |
dc.identifier.isi | WOS:000188294000051 | - |
dc.publisher.place | United States | en_HK |
dc.identifier.scopusauthorid | Yam, VWW=18539304700 | en_HK |
dc.identifier.scopusauthorid | Hui, CK=15767404500 | en_HK |
dc.identifier.scopusauthorid | Yu, SY=8358202900 | en_HK |
dc.identifier.scopusauthorid | Zhu, N=7201449530 | en_HK |
dc.identifier.issnl | 0020-1669 | - |