Synthesis, Structures and Properties of Novel Platinum(II) Acetylide Complexes and Polymers with Tri(tolyl)phosphine as the Auxiliary Ligand

Abu Ali Ibn Sina; S. M.Ibrahim Al-Rafia; Md Faruak Ahmad; Ratan Kumar Paul; S. M.Saiful Islam; Muhammad Younus; Paul R. Raithby; Cheuk Lam HO; Yih Hsing Lo; Li Liu; Hua Li; Wai Yeung WONG

doi:10.1007/s10904-014-0071-7

Synthesis, Structures and Properties of Novel Platinum(II) Acetylide Complexes and Polymers with Tri(tolyl)phosphine as the Auxiliary Ligand

Abu Ali Ibn Sina, S. M.Ibrahim Al-Rafia, Md Faruak Ahmad, Ratan Kumar Paul, S. M.Saiful Islam, Muhammad Younus^*, Paul R. Raithby, Cheuk Lam HO, Yih Hsing Lo, Li Liu, Hua Li, Wai Yeung WONG

^*Corresponding author for this work

Department of Chemistry

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

9 Citations (Scopus)

Abstract

A new family of luminescent platinum(II) acetylide complexes and polymers were formed by the copper(I) catalyzed reaction of cis-[PtCl₂(PR₃)₂] (R=C₆H₅–p-CH₃) with appropriate acetylide ligands. The reaction of metal precursors with 2.5 equivalents of monoterminal acetylide ligands provided metal complexes trans-[Pt(p-tolyl₃P)₂(C≡C-R)₂] (R=C₆H₄-p-NO₂ (1) C₆H₄ -p-CH₃ (2)), and equimolar amounts of diterminal ligand and metal chloride precursor, under reflux, afforded the metal poly-yne polymers [-Pt(p-tolyl₃P)₂C≡C–R–C≡C–]_n, (R=biphenyl and 2,5-dioctyloxybenzene). Characterization of the newly developed polymer and metal complexes was accomplished by FT-IR, multinuclear NMR (¹H, ³¹P, ¹³C) and mass spectrometry, as well as elemental analysis. The molecular structure of the metal complex trans-[Pt(p-tolyl₃P)₂(C≡CC₆H₄–p-NO₂)₂] (1) was confirmed by single crystal X-ray crystallography. The electronic absorption and photoluminescence spectra of the metal complexes and polymers have been used to probe their photophysical properties. The studies reveal that the presence of heavy metal atom and substituent groups on the phenyl ring of the ligands can enhance the efficiency of intersystem crossing from the S₁ singlet excited state to the T₁ triplet excited state and thus give intense phosphorescence.

Original language	English
Pages (from-to)	427-436
Number of pages	10
Journal	Journal of Inorganic and Organometallic Polymers and Materials
Volume	25
Issue number	3
DOIs	https://doi.org/10.1007/s10904-014-0071-7
Publication status	Published - 1 May 2015

Scopus Subject Areas

Polymers and Plastics
Materials Chemistry

User-Defined Keywords

Acetylide
Crystal structure
Phosphorescence
Platinum
Polymer

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10.1007/s10904-014-0071-7

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Sina, A. A. I., Al-Rafia, S. M. I., Ahmad, M. F., Paul, R. K., Islam, S. M. S., Younus, M., Raithby, P. R., HO, C. L., Lo, Y. H., Liu, L., Li, H., & WONG, W. Y. (2015). Synthesis, Structures and Properties of Novel Platinum(II) Acetylide Complexes and Polymers with Tri(tolyl)phosphine as the Auxiliary Ligand. Journal of Inorganic and Organometallic Polymers and Materials, 25(3), 427-436. https://doi.org/10.1007/s10904-014-0071-7

@article{46694b32f96a4d4cbf7b520e1d4b06d5,

title = "Synthesis, Structures and Properties of Novel Platinum(II) Acetylide Complexes and Polymers with Tri(tolyl)phosphine as the Auxiliary Ligand",

abstract = "A new family of luminescent platinum(II) acetylide complexes and polymers were formed by the copper(I) catalyzed reaction of cis-[PtCl2(PR3)2] (R=C6H5–p-CH3) with appropriate acetylide ligands. The reaction of metal precursors with 2.5 equivalents of monoterminal acetylide ligands provided metal complexes trans-[Pt(p-tolyl3P)2(C≡C-R)2] (R=C6H4-p-NO2 (1) C6H4 -p-CH3 (2)), and equimolar amounts of diterminal ligand and metal chloride precursor, under reflux, afforded the metal poly-yne polymers [-Pt(p-tolyl3P)2C≡C–R–C≡C–]n, (R=biphenyl and 2,5-dioctyloxybenzene). Characterization of the newly developed polymer and metal complexes was accomplished by FT-IR, multinuclear NMR (1H, 31P, 13C) and mass spectrometry, as well as elemental analysis. The molecular structure of the metal complex trans-[Pt(p-tolyl3P)2(C≡CC6H4–p-NO2)2] (1) was confirmed by single crystal X-ray crystallography. The electronic absorption and photoluminescence spectra of the metal complexes and polymers have been used to probe their photophysical properties. The studies reveal that the presence of heavy metal atom and substituent groups on the phenyl ring of the ligands can enhance the efficiency of intersystem crossing from the S1 singlet excited state to the T1 triplet excited state and thus give intense phosphorescence.",

keywords = "Acetylide, Crystal structure, Phosphorescence, Platinum, Polymer",

author = "Sina, {Abu Ali Ibn} and Al-Rafia, {S. M.Ibrahim} and Ahmad, {Md Faruak} and Paul, {Ratan Kumar} and Islam, {S. M.Saiful} and Muhammad Younus and Raithby, {Paul R.} and HO, {Cheuk Lam} and Lo, {Yih Hsing} and Li Liu and Hua Li and WONG, {Wai Yeung}",

year = "2015",

month = may,

day = "1",

doi = "10.1007/s10904-014-0071-7",

language = "English",

volume = "25",

pages = "427--436",

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

issn = "1574-1443",

publisher = "Springer",

number = "3",

}

Sina, AAI, Al-Rafia, SMI, Ahmad, MF, Paul, RK, Islam, SMS, Younus, M, Raithby, PR, HO, CL, Lo, YH, Liu, L, Li, H & WONG, WY 2015, 'Synthesis, Structures and Properties of Novel Platinum(II) Acetylide Complexes and Polymers with Tri(tolyl)phosphine as the Auxiliary Ligand', Journal of Inorganic and Organometallic Polymers and Materials, vol. 25, no. 3, pp. 427-436. https://doi.org/10.1007/s10904-014-0071-7

Synthesis, Structures and Properties of Novel Platinum(II) Acetylide Complexes and Polymers with Tri(tolyl)phosphine as the Auxiliary Ligand. / Sina, Abu Ali Ibn; Al-Rafia, S. M.Ibrahim; Ahmad, Md Faruak et al.
In: Journal of Inorganic and Organometallic Polymers and Materials, Vol. 25, No. 3, 01.05.2015, p. 427-436.

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

TY - JOUR

T1 - Synthesis, Structures and Properties of Novel Platinum(II) Acetylide Complexes and Polymers with Tri(tolyl)phosphine as the Auxiliary Ligand

AU - Sina, Abu Ali Ibn

AU - Al-Rafia, S. M.Ibrahim

AU - Ahmad, Md Faruak

AU - Paul, Ratan Kumar

AU - Islam, S. M.Saiful

AU - Younus, Muhammad

AU - Raithby, Paul R.

AU - HO, Cheuk Lam

AU - Lo, Yih Hsing

AU - Liu, Li

AU - Li, Hua

AU - WONG, Wai Yeung

PY - 2015/5/1

Y1 - 2015/5/1

N2 - A new family of luminescent platinum(II) acetylide complexes and polymers were formed by the copper(I) catalyzed reaction of cis-[PtCl2(PR3)2] (R=C6H5–p-CH3) with appropriate acetylide ligands. The reaction of metal precursors with 2.5 equivalents of monoterminal acetylide ligands provided metal complexes trans-[Pt(p-tolyl3P)2(C≡C-R)2] (R=C6H4-p-NO2 (1) C6H4 -p-CH3 (2)), and equimolar amounts of diterminal ligand and metal chloride precursor, under reflux, afforded the metal poly-yne polymers [-Pt(p-tolyl3P)2C≡C–R–C≡C–]n, (R=biphenyl and 2,5-dioctyloxybenzene). Characterization of the newly developed polymer and metal complexes was accomplished by FT-IR, multinuclear NMR (1H, 31P, 13C) and mass spectrometry, as well as elemental analysis. The molecular structure of the metal complex trans-[Pt(p-tolyl3P)2(C≡CC6H4–p-NO2)2] (1) was confirmed by single crystal X-ray crystallography. The electronic absorption and photoluminescence spectra of the metal complexes and polymers have been used to probe their photophysical properties. The studies reveal that the presence of heavy metal atom and substituent groups on the phenyl ring of the ligands can enhance the efficiency of intersystem crossing from the S1 singlet excited state to the T1 triplet excited state and thus give intense phosphorescence.

AB - A new family of luminescent platinum(II) acetylide complexes and polymers were formed by the copper(I) catalyzed reaction of cis-[PtCl2(PR3)2] (R=C6H5–p-CH3) with appropriate acetylide ligands. The reaction of metal precursors with 2.5 equivalents of monoterminal acetylide ligands provided metal complexes trans-[Pt(p-tolyl3P)2(C≡C-R)2] (R=C6H4-p-NO2 (1) C6H4 -p-CH3 (2)), and equimolar amounts of diterminal ligand and metal chloride precursor, under reflux, afforded the metal poly-yne polymers [-Pt(p-tolyl3P)2C≡C–R–C≡C–]n, (R=biphenyl and 2,5-dioctyloxybenzene). Characterization of the newly developed polymer and metal complexes was accomplished by FT-IR, multinuclear NMR (1H, 31P, 13C) and mass spectrometry, as well as elemental analysis. The molecular structure of the metal complex trans-[Pt(p-tolyl3P)2(C≡CC6H4–p-NO2)2] (1) was confirmed by single crystal X-ray crystallography. The electronic absorption and photoluminescence spectra of the metal complexes and polymers have been used to probe their photophysical properties. The studies reveal that the presence of heavy metal atom and substituent groups on the phenyl ring of the ligands can enhance the efficiency of intersystem crossing from the S1 singlet excited state to the T1 triplet excited state and thus give intense phosphorescence.

KW - Acetylide

KW - Crystal structure

KW - Phosphorescence

KW - Platinum

KW - Polymer

UR - http://www.scopus.com/inward/record.url?scp=84928475744&partnerID=8YFLogxK

U2 - 10.1007/s10904-014-0071-7

DO - 10.1007/s10904-014-0071-7

M3 - Journal article

AN - SCOPUS:84928475744

SN - 1574-1443

VL - 25

SP - 427

EP - 436

JO - Journal of Inorganic and Organometallic Polymers and Materials

JF - Journal of Inorganic and Organometallic Polymers and Materials

IS - 3

ER -

Synthesis, Structures and Properties of Novel Platinum(II) Acetylide Complexes and Polymers with Tri(tolyl)phosphine as the Auxiliary Ligand

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