A New Series of Conjugated Platinum-co-Poly(p-phenylenebutadiynylene)s Polymers: Syntheses and Photophysical Properties

Md Kausar Ahmed, Md. Mostafizur Rahman, Masnun Naher, Shawon Shawrier Mehdi, Atiqur Rahman Khan, Mohammad Mizanur Rahman Khan, S. M.Saiful Islam, Muhammad Younus, Stefan Wedler, Sergey Bagnich, Anna Lena Hofmann, Alexander Rudnick, Anna Köhler

Research output: Contribution to journalArticle

Abstract

An efficient route is developed to synthesize a series of platinum-co-poly(p-phenylenebutadiynylene)s (Pt-co-PPBs) polymers by stoichiometric mixing of poly(p-phenylenebutadiynylene)s (PPBs) and platinum bis-phosphine dichlorides. This synthetic route involves two steps; first, oxidative coupling of diterminal phenyleneethynylenes (PEs) gives low-molecular-weight PPBs oligomers HCC(Ph(OR) 2 CCCC) n Ph(OR) 2 CCH (R = C 4 H 9 1, R = C 8 H 17 2, R = C 12 H 25 3) (M n = 1000–3000, degrees of polymerization, P n (M n ) = 4–6), which have bifunctional alkynyl end groups, and in the second step, these organic oligomers are allowed to react with trans-[(P n Bu 3 ) 2 PtCl 2 ] to form newly designed Pt-co-PPBs (R = C 4 H 9 4, R = C 8 H 17 5, R = C 12 H 25 6) polymers. The yield of 4–6 varies from good (63%) to high (76%) with high molecular weights (M n ) ranging from 52 738 to 74 212, and this methodology tolerates different alkoxy substituted PPBs. These new organometallic polymers contain platinum to phenylenebutadiynylene (PB) ratio of 1:4 to 1:6 and are solution processable. Polymer 4 displays fluorescence at room temperature and fluorescence and phosphorescence at low temperature in thin film, which would be useful for studying the triplet emission in these polymers.

Original languageEnglish
Article number1800494
JournalMacromolecular Chemistry and Physics
DOIs
Publication statusPublished - 1 Jan 2019

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Platinum
Polymers
platinum
polymers
synthesis
oligomers
phosphine
organometallic polymers
Oligomers
routes
fluorescence
Fluorescence
Molecular weight
dichlorides
low molecular weights
phosphorescence
Phosphorescence
phosphines
Organometallics
molecular weight

Keywords

  • fluorescence
  • phosphorescence
  • platinum
  • platinum-co-poly(p-phenylenebutadiynylene)s
  • poly(p-phenylenebutadiynylene)s

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Polymers and Plastics
  • Organic Chemistry
  • Materials Chemistry

Cite this

A New Series of Conjugated Platinum-co-Poly(p-phenylenebutadiynylene)s Polymers : Syntheses and Photophysical Properties. / Ahmed, Md Kausar; Rahman, Md. Mostafizur; Naher, Masnun; Mehdi, Shawon Shawrier; Khan, Atiqur Rahman; Khan, Mohammad Mizanur Rahman; Islam, S. M.Saiful; Younus, Muhammad; Wedler, Stefan; Bagnich, Sergey; Hofmann, Anna Lena; Rudnick, Alexander; Köhler, Anna.

In: Macromolecular Chemistry and Physics, 01.01.2019.

Research output: Contribution to journalArticle

Ahmed, MK, Rahman, MM, Naher, M, Mehdi, SS, Khan, AR, Khan, MMR, Islam, SMS, Younus, M, Wedler, S, Bagnich, S, Hofmann, AL, Rudnick, A & Köhler, A 2019, 'A New Series of Conjugated Platinum-co-Poly(p-phenylenebutadiynylene)s Polymers: Syntheses and Photophysical Properties' Macromolecular Chemistry and Physics. https://doi.org/10.1002/macp.201800494
Ahmed, Md Kausar ; Rahman, Md. Mostafizur ; Naher, Masnun ; Mehdi, Shawon Shawrier ; Khan, Atiqur Rahman ; Khan, Mohammad Mizanur Rahman ; Islam, S. M.Saiful ; Younus, Muhammad ; Wedler, Stefan ; Bagnich, Sergey ; Hofmann, Anna Lena ; Rudnick, Alexander ; Köhler, Anna. / A New Series of Conjugated Platinum-co-Poly(p-phenylenebutadiynylene)s Polymers : Syntheses and Photophysical Properties. In: Macromolecular Chemistry and Physics. 2019.
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abstract = "An efficient route is developed to synthesize a series of platinum-co-poly(p-phenylenebutadiynylene)s (Pt-co-PPBs) polymers by stoichiometric mixing of poly(p-phenylenebutadiynylene)s (PPBs) and platinum bis-phosphine dichlorides. This synthetic route involves two steps; first, oxidative coupling of diterminal phenyleneethynylenes (PEs) gives low-molecular-weight PPBs oligomers HCC(Ph(OR) 2 CCCC) n Ph(OR) 2 CCH (R = C 4 H 9 1, R = C 8 H 17 2, R = C 12 H 25 3) (M n = 1000–3000, degrees of polymerization, P n (M n ) = 4–6), which have bifunctional alkynyl end groups, and in the second step, these organic oligomers are allowed to react with trans-[(P n Bu 3 ) 2 PtCl 2 ] to form newly designed Pt-co-PPBs (R = C 4 H 9 4, R = C 8 H 17 5, R = C 12 H 25 6) polymers. The yield of 4–6 varies from good (63{\%}) to high (76{\%}) with high molecular weights (M n ) ranging from 52 738 to 74 212, and this methodology tolerates different alkoxy substituted PPBs. These new organometallic polymers contain platinum to phenylenebutadiynylene (PB) ratio of 1:4 to 1:6 and are solution processable. Polymer 4 displays fluorescence at room temperature and fluorescence and phosphorescence at low temperature in thin film, which would be useful for studying the triplet emission in these polymers.",
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AU - Islam, S. M.Saiful

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