Switching on the phosphorescence of pyrene by cycloplatination

Jian Hu; John H.K. Yip; Dik Lung Ma; Kwok Yin Wong; Wai Hong Chung

doi:10.1021/om800410m

Switching on the phosphorescence of pyrene by cycloplatination

Jian Hu, John H.K. Yip, Dik Lung Ma, Kwok Yin Wong, Wai Hong Chung

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

53 Citations (Scopus)

Abstract

1-Diphenylphosphinopyrene (1-PyP) and 1,6-bis(diphenylphosphino)pyrene (1,6-PyP) can be metalated at C5 and C10 to give cyclometalated complexes [M(L)(1-PyP-H)]+and [M2(L)2(1,6-PyP)]2+(M = Pd or Pt, L = diphosphines). The π-π*transitions of the pyrenyl ring are strongly perturbed by the PPh2groups at C1/6, while the perturbation of the metal ions at C5/10 is weak. The phosphorescence of the pyrenyl ring is strongly enhanced by the heavy atom effect of the Pt ion up to a quantum yield of 1.5 × 10-2. Direct coordination of the Pt ion to the pyrenyl ring is needed for enhancement of the phosphorescence.

Original language	English
Pages (from-to)	51-59
Number of pages	9
Journal	Organometallics
Volume	28
Issue number	1
DOIs	https://doi.org/10.1021/om800410m
Publication status	Published - 12 Jan 2009

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry

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10.1021/om800410m

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title = "Switching on the phosphorescence of pyrene by cycloplatination",

abstract = "1-Diphenylphosphinopyrene (1-PyP) and 1,6-bis(diphenylphosphino)pyrene (1,6-PyP) can be metalated at C5 and C10 to give cyclometalated complexes [M(L)(1-PyP-H)]+and [M2(L)2(1,6-PyP)]2+(M = Pd or Pt, L = diphosphines). The π-π*transitions of the pyrenyl ring are strongly perturbed by the PPh2groups at C1/6, while the perturbation of the metal ions at C5/10 is weak. The phosphorescence of the pyrenyl ring is strongly enhanced by the heavy atom effect of the Pt ion up to a quantum yield of 1.5 × 10-2. Direct coordination of the Pt ion to the pyrenyl ring is needed for enhancement of the phosphorescence.",

author = "Jian Hu and Yip, {John H.K.} and Ma, {Dik Lung} and Wong, {Kwok Yin} and Chung, {Wai Hong}",

year = "2009",

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doi = "10.1021/om800410m",

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T1 - Switching on the phosphorescence of pyrene by cycloplatination

AU - Hu, Jian

AU - Yip, John H.K.

AU - Ma, Dik Lung

AU - Wong, Kwok Yin

AU - Chung, Wai Hong

PY - 2009/1/12

Y1 - 2009/1/12

N2 - 1-Diphenylphosphinopyrene (1-PyP) and 1,6-bis(diphenylphosphino)pyrene (1,6-PyP) can be metalated at C5 and C10 to give cyclometalated complexes [M(L)(1-PyP-H)]+and [M2(L)2(1,6-PyP)]2+(M = Pd or Pt, L = diphosphines). The π-π*transitions of the pyrenyl ring are strongly perturbed by the PPh2groups at C1/6, while the perturbation of the metal ions at C5/10 is weak. The phosphorescence of the pyrenyl ring is strongly enhanced by the heavy atom effect of the Pt ion up to a quantum yield of 1.5 × 10-2. Direct coordination of the Pt ion to the pyrenyl ring is needed for enhancement of the phosphorescence.

AB - 1-Diphenylphosphinopyrene (1-PyP) and 1,6-bis(diphenylphosphino)pyrene (1,6-PyP) can be metalated at C5 and C10 to give cyclometalated complexes [M(L)(1-PyP-H)]+and [M2(L)2(1,6-PyP)]2+(M = Pd or Pt, L = diphosphines). The π-π*transitions of the pyrenyl ring are strongly perturbed by the PPh2groups at C1/6, while the perturbation of the metal ions at C5/10 is weak. The phosphorescence of the pyrenyl ring is strongly enhanced by the heavy atom effect of the Pt ion up to a quantum yield of 1.5 × 10-2. Direct coordination of the Pt ion to the pyrenyl ring is needed for enhancement of the phosphorescence.

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U2 - 10.1021/om800410m

DO - 10.1021/om800410m

M3 - Journal article

SN - 0276-7333

VL - 28

SP - 51

EP - 59

JO - Organometallics

JF - Organometallics

IS - 1

ER -

Switching on the phosphorescence of pyrene by cycloplatination

Abstract

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