Synthesis and luminescent properties of platinum-containing polyynes with tetraacetylenic 9,9-dihexylfluorene units

Li Liu; Zu-Xing Chen; Shi-Zhong Liu; Wai-Yeung Wong

doi:10.1002/cjoc.200690190

Synthesis and luminescent properties of platinum-containing polyynes with tetraacetylenic 9,9-dihexylfluorene units

Li Liu^*, Zu-Xing Chen, Shi-Zhong Liu, Wai-Yeung Wong

^*Corresponding author for this work

Department of Chemistry

Research output: Contribution to journal › Journal article › peer-review

2 Citations (Scopus)

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Abstract

Soluble platinum(II) polyyne polymers trans-{Pt-[P(C₄H ₈N)₃]₂(C ≡ C)₂R(C ≡ C)₂-}_n and trans-{Pt-[P(C₄-H₃O) ₃]₂(C≡C)₂R(C≡C)₂-} _n (R=9,9-dihexylfluorene-2,7-diyl) have been prepared in good yields by CuI-catalyzed polymerization involving the dehydrohalogenating coupling of trans-{PtCl₂[P(C₄H₈N)₃] ₂} and trans-{PtCl₂[P-(C₄H₃O) ₃]₂} with H(C≡C)₂R(C≡C) ₂H, respectively. We report the optical spectroscopy of these polyplatinaynes. The influence of the heavy metal atom in these metal alkynyl systems on the intersystem crossing rate and the spatial extent of lowest singlet and triplet excitons was systematically characterized. Our investigations indicate that the organic triplet emissions can be harvested by the heavy-atom effect which enables efficient intersystem crossing from the S₁ singlet excited state to the T₁ triplet excited state.

Original language	English
Pages (from-to)	1020-1025
Number of pages	6
Journal	Chinese Journal of Chemistry
Volume	24
Issue number	8
DOIs	https://doi.org/10.1002/cjoc.200690190
Publication status	Published - Aug 2006

Scopus Subject Areas

Chemistry(all)

User-Defined Keywords

Acetylide
Butadiyne
Fluorene
Platinum
Triplet emission

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10.1002/cjoc.200690190

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title = "Synthesis and luminescent properties of platinum-containing polyynes with tetraacetylenic 9,9-dihexylfluorene units",

abstract = "Soluble platinum(II) polyyne polymers trans-{Pt-[P(C4H 8N)3]2(C ≡ C)2R(C ≡ C)2-}n and trans-{Pt-[P(C4-H3O) 3]2(C≡C)2R(C≡C)2-} n (R=9,9-dihexylfluorene-2,7-diyl) have been prepared in good yields by CuI-catalyzed polymerization involving the dehydrohalogenating coupling of trans-{PtCl2[P(C4H8N)3] 2} and trans-{PtCl2[P-(C4H3O) 3]2} with H(C≡C)2R(C≡C) 2H, respectively. We report the optical spectroscopy of these polyplatinaynes. The influence of the heavy metal atom in these metal alkynyl systems on the intersystem crossing rate and the spatial extent of lowest singlet and triplet excitons was systematically characterized. Our investigations indicate that the organic triplet emissions can be harvested by the heavy-atom effect which enables efficient intersystem crossing from the S1 singlet excited state to the T1 triplet excited state.",

keywords = "Acetylide, Butadiyne, Fluorene, Platinum, Triplet emission",

author = "Li Liu and Zu-Xing Chen and Shi-Zhong Liu and Wai-Yeung Wong",

year = "2006",

month = aug,

doi = "10.1002/cjoc.200690190",

language = "English",

volume = "24",

pages = "1020--1025",

journal = "Chinese Journal of Chemistry",

issn = "1001-604X",

publisher = "Wiley-Blackwell",

number = "8",

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T1 - Synthesis and luminescent properties of platinum-containing polyynes with tetraacetylenic 9,9-dihexylfluorene units

AU - Liu, Li

AU - Chen, Zu-Xing

AU - Liu, Shi-Zhong

AU - Wong, Wai-Yeung

PY - 2006/8

Y1 - 2006/8

N2 - Soluble platinum(II) polyyne polymers trans-{Pt-[P(C4H 8N)3]2(C ≡ C)2R(C ≡ C)2-}n and trans-{Pt-[P(C4-H3O) 3]2(C≡C)2R(C≡C)2-} n (R=9,9-dihexylfluorene-2,7-diyl) have been prepared in good yields by CuI-catalyzed polymerization involving the dehydrohalogenating coupling of trans-{PtCl2[P(C4H8N)3] 2} and trans-{PtCl2[P-(C4H3O) 3]2} with H(C≡C)2R(C≡C) 2H, respectively. We report the optical spectroscopy of these polyplatinaynes. The influence of the heavy metal atom in these metal alkynyl systems on the intersystem crossing rate and the spatial extent of lowest singlet and triplet excitons was systematically characterized. Our investigations indicate that the organic triplet emissions can be harvested by the heavy-atom effect which enables efficient intersystem crossing from the S1 singlet excited state to the T1 triplet excited state.

AB - Soluble platinum(II) polyyne polymers trans-{Pt-[P(C4H 8N)3]2(C ≡ C)2R(C ≡ C)2-}n and trans-{Pt-[P(C4-H3O) 3]2(C≡C)2R(C≡C)2-} n (R=9,9-dihexylfluorene-2,7-diyl) have been prepared in good yields by CuI-catalyzed polymerization involving the dehydrohalogenating coupling of trans-{PtCl2[P(C4H8N)3] 2} and trans-{PtCl2[P-(C4H3O) 3]2} with H(C≡C)2R(C≡C) 2H, respectively. We report the optical spectroscopy of these polyplatinaynes. The influence of the heavy metal atom in these metal alkynyl systems on the intersystem crossing rate and the spatial extent of lowest singlet and triplet excitons was systematically characterized. Our investigations indicate that the organic triplet emissions can be harvested by the heavy-atom effect which enables efficient intersystem crossing from the S1 singlet excited state to the T1 triplet excited state.

KW - Acetylide

KW - Butadiyne

KW - Fluorene

KW - Platinum

KW - Triplet emission

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U2 - 10.1002/cjoc.200690190

DO - 10.1002/cjoc.200690190

M3 - Journal article

AN - SCOPUS:33749010052

SN - 1001-604X

VL - 24

SP - 1020

EP - 1025

JO - Chinese Journal of Chemistry

JF - Chinese Journal of Chemistry

IS - 8

ER -

Synthesis and luminescent properties of platinum-containing polyynes with tetraacetylenic 9,9-dihexylfluorene units

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