Synthesis and electronic spectroscopy of luminescent cyclometalated platinum-anthracenyl complexes

Jian Hu; Ronger Lin; John H.K. Yip; Kwok Yin Wong; Ma Dik-Lung; Jagadese J. Vittal

doi:10.1021/om700706r

Synthesis and electronic spectroscopy of luminescent cyclometalated platinum-anthracenyl complexes

Jian Hu, Ronger Lin, John H.K. Yip, Kwok Yin Wong, Ma Dik-Lung, Jagadese J. Vittal

Research output: Journal article publication › Journal article › Academic research › peer-review

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Abstract

Dicyclometalated complexes syn- and anti-[Pt2(L)2(PAnP-H2)](OTf)2(Pt2) are synthesized from reactions of 9,10-bis(diphenylphosphino)anthracene (PAnP) and Pt(L)(OTf)2(L = diphosphines, OTf = CF3SO3). Because of metal perturbation on the electronic structure of the anthracenyl ring, the1B2u-←1Ag transition, which is forbidden in anthracene, is observed in the electronic spectra of Pt2. The complexes display fluorescence arising from the ligand-centered Si excited state. No significant heavy atom effect is observed in the Pt2complexes. To understand the effect of the number of Pt ions on the extent of perturbation, a mononuclear analogue, [Pt(dppe)(PAn-H)] ClO4(PAn = 9-diphenylphosphinoanthracene), is prepared and its spectroscopy studied.

Original language	English
Pages (from-to)	6533-6543
Number of pages	11
Journal	Organometallics
Volume	26
Issue number	26
DOIs	https://doi.org/10.1021/om700706r
Publication status	Published - 17 Dec 2007

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry

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10.1021/om700706r

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title = "Synthesis and electronic spectroscopy of luminescent cyclometalated platinum-anthracenyl complexes",

abstract = "Dicyclometalated complexes syn- and anti-[Pt2(L)2(PAnP-H2)](OTf)2(Pt2) are synthesized from reactions of 9,10-bis(diphenylphosphino)anthracene (PAnP) and Pt(L)(OTf)2(L = diphosphines, OTf = CF3SO3). Because of metal perturbation on the electronic structure of the anthracenyl ring, the1B2u-←1Ag transition, which is forbidden in anthracene, is observed in the electronic spectra of Pt2. The complexes display fluorescence arising from the ligand-centered Si excited state. No significant heavy atom effect is observed in the Pt2complexes. To understand the effect of the number of Pt ions on the extent of perturbation, a mononuclear analogue, [Pt(dppe)(PAn-H)] ClO4(PAn = 9-diphenylphosphinoanthracene), is prepared and its spectroscopy studied.",

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T1 - Synthesis and electronic spectroscopy of luminescent cyclometalated platinum-anthracenyl complexes

AU - Hu, Jian

AU - Lin, Ronger

AU - Yip, John H.K.

AU - Wong, Kwok Yin

AU - Dik-Lung, Ma

AU - Vittal, Jagadese J.

PY - 2007/12/17

Y1 - 2007/12/17

N2 - Dicyclometalated complexes syn- and anti-[Pt2(L)2(PAnP-H2)](OTf)2(Pt2) are synthesized from reactions of 9,10-bis(diphenylphosphino)anthracene (PAnP) and Pt(L)(OTf)2(L = diphosphines, OTf = CF3SO3). Because of metal perturbation on the electronic structure of the anthracenyl ring, the1B2u-←1Ag transition, which is forbidden in anthracene, is observed in the electronic spectra of Pt2. The complexes display fluorescence arising from the ligand-centered Si excited state. No significant heavy atom effect is observed in the Pt2complexes. To understand the effect of the number of Pt ions on the extent of perturbation, a mononuclear analogue, [Pt(dppe)(PAn-H)] ClO4(PAn = 9-diphenylphosphinoanthracene), is prepared and its spectroscopy studied.

AB - Dicyclometalated complexes syn- and anti-[Pt2(L)2(PAnP-H2)](OTf)2(Pt2) are synthesized from reactions of 9,10-bis(diphenylphosphino)anthracene (PAnP) and Pt(L)(OTf)2(L = diphosphines, OTf = CF3SO3). Because of metal perturbation on the electronic structure of the anthracenyl ring, the1B2u-←1Ag transition, which is forbidden in anthracene, is observed in the electronic spectra of Pt2. The complexes display fluorescence arising from the ligand-centered Si excited state. No significant heavy atom effect is observed in the Pt2complexes. To understand the effect of the number of Pt ions on the extent of perturbation, a mononuclear analogue, [Pt(dppe)(PAn-H)] ClO4(PAn = 9-diphenylphosphinoanthracene), is prepared and its spectroscopy studied.

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DO - 10.1021/om700706r

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JO - Organometallics

JF - Organometallics

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ER -

Synthesis and electronic spectroscopy of luminescent cyclometalated platinum-anthracenyl complexes

Abstract

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