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Synthesis, characterization, thermal and luminescent properties of thiophenol-functionalized platinum(II) bis(acetylide) complexes

  • Md. Mostafizur RahmanEmail author
  • Shishir Kanti Pramanik
  • Dababrata Paul
  • M. A. A. Shofi Uddin Sarkar
  • Md. Jalal Ahmed
  • Ramkrishna Saha
  • Akiya Ogawa
Article
  • 89 Downloads

Abstract

Two thiophenol-functionalized trans-platinum(II) bis(acetylide) complexes, having one thiophenol moiety in each alkenyl backbone with general formula trans-[(PPh3)2Pt{C≡C–Ar–CH=CH(SC6H5)}2], (2a2b), (Ar = phenylene or 2,5-dimethylphenylene), were synthesized in good yields and good regioselectivities. Compared to the absorption bands of the trans-platinum(II) bis(acetylide) complexes 1, the positions of the lowest energy absorption bands were redshifted by 17–18 nm, after functionalization with thiophenol. For both of the platinum(II) complexes 2, the lowest energy absorption bands in chloroform solution at room temperature were observed in the range 376–379 nm, and under excitation at the absorption maximum both complexes showed emission maxima in the range of 408–419 nm. All the new Pt complexes have been characterized by physico-chemical and spectroscopic methods.

Notes

Acknowledgements

Thanks to Research center, Shahjalal University of Science and Technology, Sylhet for research grants to partial support this work. Also thanks to Professor Muhammad Younus to access for measurements of TGA.

Supplementary material

11243_2018_287_MOESM1_ESM.pdf (564 kb)
Supporting materials include 1H NMR and 31P NMR spectra, and TGA thermograms of the platinum(II) complexes (PDF 563 kb)

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Copyright information

© Springer Nature Switzerland AG 2018

Authors and Affiliations

  • Md. Mostafizur Rahman
    • 1
    Email author
  • Shishir Kanti Pramanik
    • 1
  • Dababrata Paul
    • 2
  • M. A. A. Shofi Uddin Sarkar
    • 1
  • Md. Jalal Ahmed
    • 1
  • Ramkrishna Saha
    • 1
  • Akiya Ogawa
    • 3
  1. 1.Department of Chemistry, School of Physical SciencesShahjalal University of Science and TechnologySylhetBangladesh
  2. 2.Department of ChemistryBangabandhu Sheikh Mujibur Rahman Science and Technology UniversityGopalganjBangladesh
  3. 3.Department of Applied Chemistry, Graduate School of EngineeringOsaka Prefecture UniversitySakaiJapan

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