Synthesis, Characterization and Photophysical Properties of Metallopolyynes and Metallodiynes of Platinum(II) with Dibenzothiophene Derivatives

Cheuk Lam Ho; Suk Yue Poon; Pik Kwan Lo; Man Shing Wong; Wai Yeung Wong

doi:10.1007/s10904-012-9761-1

Synthesis, Characterization and Photophysical Properties of Metallopolyynes and Metallodiynes of Platinum(II) with Dibenzothiophene Derivatives

Cheuk Lam Ho^*, Suk Yue Poon, Pik Kwan Lo, Man Shing Wong, Wai Yeung Wong

^*Corresponding author for this work

Department of Chemistry

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

14 Citations (Scopus)

Abstract

Soluble, thermally stable, and easily processable platinum(II) polyyne polymers of the form trans-[-Pt(PBu₃)₂C≡CRC≡C-]_n (R = 2,8-disubstituted dibenzothiophene, 2,8-disubstituted and 3,7-disubstituted dibenzothiophene-S,S-dioxide units) have been prepared in good yields by CuI-catalyzed polymerization involving the dehydrohalogenating coupling of trans-[PtCl₂(PBu₃)₂] and HC≡CRC≡CH. We report their optical absorption and photoluminescence spectra and compare the results with the monomeric model complexes trans-[Pt(Ph)(PEt₃)₂C≡CRC≡CPt(Ph)(PEt₃)₂]. The different electronic properties and linkage geometry of the central R group lead to new organometallic materials with distinct photophysical traits. The polymer with more conjugated 3,7-disubstituted dibenzothiophene-S,S-dioxide mainly displays fluorescence band, while its isomer with less conjugated 2,8-disubstituted spacer effectively enhances the intersystem crossing rate and strong phosphorescence emission can be detected even at room temperature.

Original language	English
Pages (from-to)	206-215
Number of pages	10
Journal	Journal of Inorganic and Organometallic Polymers and Materials
Volume	23
Issue number	1
DOIs	https://doi.org/10.1007/s10904-012-9761-1
Publication status	Published - Jan 2013

Scopus Subject Areas

Polymers and Plastics
Materials Chemistry

User-Defined Keywords

Acetylide
Dibenzothiophene
Photoluminescence
Platinum
Sulfone

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10.1007/s10904-012-9761-1

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@article{aefd76b6d647423bb5c2829afd204a46,

title = "Synthesis, Characterization and Photophysical Properties of Metallopolyynes and Metallodiynes of Platinum(II) with Dibenzothiophene Derivatives",

abstract = "Soluble, thermally stable, and easily processable platinum(II) polyyne polymers of the form trans-[-Pt(PBu3)2C≡CRC≡C-]n (R = 2,8-disubstituted dibenzothiophene, 2,8-disubstituted and 3,7-disubstituted dibenzothiophene-S,S-dioxide units) have been prepared in good yields by CuI-catalyzed polymerization involving the dehydrohalogenating coupling of trans-[PtCl2(PBu3)2] and HC≡CRC≡CH. We report their optical absorption and photoluminescence spectra and compare the results with the monomeric model complexes trans-[Pt(Ph)(PEt3)2C≡CRC≡CPt(Ph)(PEt3)2]. The different electronic properties and linkage geometry of the central R group lead to new organometallic materials with distinct photophysical traits. The polymer with more conjugated 3,7-disubstituted dibenzothiophene-S,S-dioxide mainly displays fluorescence band, while its isomer with less conjugated 2,8-disubstituted spacer effectively enhances the intersystem crossing rate and strong phosphorescence emission can be detected even at room temperature.",

keywords = "Acetylide, Dibenzothiophene, Photoluminescence, Platinum, Sulfone",

author = "Ho, {Cheuk Lam} and Poon, {Suk Yue} and Lo, {Pik Kwan} and Wong, {Man Shing} and Wong, {Wai Yeung}",

note = "Funding Information: Acknowledgments We thank the Hong Kong Research Grants Council (HKBU202410 and HKUST2/CRF/10) and Hong Kong Baptist University (FRG2/11-12/156) for financial support. The work Funding Information: described in this paper was also partially supported by a grant from the Research Grants Council of the Hong Kong Special Administrative Region, China (Project No. [T23-713/11]).",

year = "2013",

month = jan,

doi = "10.1007/s10904-012-9761-1",

language = "English",

volume = "23",

pages = "206--215",

journal = "Journal of Inorganic and Organometallic Polymers and Materials",

issn = "1574-1443",

publisher = "Springer",

number = "1",

}

Synthesis, Characterization and Photophysical Properties of Metallopolyynes and Metallodiynes of Platinum(II) with Dibenzothiophene Derivatives. / Ho, Cheuk Lam; Poon, Suk Yue; Lo, Pik Kwan et al.
In: Journal of Inorganic and Organometallic Polymers and Materials, Vol. 23, No. 1, 01.2013, p. 206-215.

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

TY - JOUR

T1 - Synthesis, Characterization and Photophysical Properties of Metallopolyynes and Metallodiynes of Platinum(II) with Dibenzothiophene Derivatives

AU - Ho, Cheuk Lam

AU - Poon, Suk Yue

AU - Lo, Pik Kwan

AU - Wong, Man Shing

AU - Wong, Wai Yeung

N1 - Funding Information: Acknowledgments We thank the Hong Kong Research Grants Council (HKBU202410 and HKUST2/CRF/10) and Hong Kong Baptist University (FRG2/11-12/156) for financial support. The work Funding Information: described in this paper was also partially supported by a grant from the Research Grants Council of the Hong Kong Special Administrative Region, China (Project No. [T23-713/11]).

PY - 2013/1

Y1 - 2013/1

N2 - Soluble, thermally stable, and easily processable platinum(II) polyyne polymers of the form trans-[-Pt(PBu3)2C≡CRC≡C-]n (R = 2,8-disubstituted dibenzothiophene, 2,8-disubstituted and 3,7-disubstituted dibenzothiophene-S,S-dioxide units) have been prepared in good yields by CuI-catalyzed polymerization involving the dehydrohalogenating coupling of trans-[PtCl2(PBu3)2] and HC≡CRC≡CH. We report their optical absorption and photoluminescence spectra and compare the results with the monomeric model complexes trans-[Pt(Ph)(PEt3)2C≡CRC≡CPt(Ph)(PEt3)2]. The different electronic properties and linkage geometry of the central R group lead to new organometallic materials with distinct photophysical traits. The polymer with more conjugated 3,7-disubstituted dibenzothiophene-S,S-dioxide mainly displays fluorescence band, while its isomer with less conjugated 2,8-disubstituted spacer effectively enhances the intersystem crossing rate and strong phosphorescence emission can be detected even at room temperature.

AB - Soluble, thermally stable, and easily processable platinum(II) polyyne polymers of the form trans-[-Pt(PBu3)2C≡CRC≡C-]n (R = 2,8-disubstituted dibenzothiophene, 2,8-disubstituted and 3,7-disubstituted dibenzothiophene-S,S-dioxide units) have been prepared in good yields by CuI-catalyzed polymerization involving the dehydrohalogenating coupling of trans-[PtCl2(PBu3)2] and HC≡CRC≡CH. We report their optical absorption and photoluminescence spectra and compare the results with the monomeric model complexes trans-[Pt(Ph)(PEt3)2C≡CRC≡CPt(Ph)(PEt3)2]. The different electronic properties and linkage geometry of the central R group lead to new organometallic materials with distinct photophysical traits. The polymer with more conjugated 3,7-disubstituted dibenzothiophene-S,S-dioxide mainly displays fluorescence band, while its isomer with less conjugated 2,8-disubstituted spacer effectively enhances the intersystem crossing rate and strong phosphorescence emission can be detected even at room temperature.

KW - Acetylide

KW - Dibenzothiophene

KW - Photoluminescence

KW - Platinum

KW - Sulfone

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U2 - 10.1007/s10904-012-9761-1

DO - 10.1007/s10904-012-9761-1

M3 - Journal article

AN - SCOPUS:84871718837

SN - 1574-1443

VL - 23

SP - 206

EP - 215

JO - Journal of Inorganic and Organometallic Polymers and Materials

JF - Journal of Inorganic and Organometallic Polymers and Materials

IS - 1

ER -

Synthesis, Characterization and Photophysical Properties of Metallopolyynes and Metallodiynes of Platinum(II) with Dibenzothiophene Derivatives

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