Synthesis, optical properties, and photoluminescence of organometallic acetylide polymers of platinum functionalized with Si and Ge-bridged bis(3,6-diethynyl-9-butylcarbazole)

Wai Yeung Wong; Suk Yue Poon; Jian Xin Shi; Kok Wai Cheah

doi:10.1007/s10904-006-9082-3

Synthesis, optical properties, and photoluminescence of organometallic acetylide polymers of platinum functionalized with Si and Ge-bridged bis(3,6-diethynyl-9-butylcarbazole)

Wai Yeung Wong^*, Suk Yue Poon, Jian Xin Shi, Kok Wai Cheah

^*Corresponding author for this work

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

26 Citations (Scopus)

Abstract

A series of light-emitting group 14 element-containing organometallic platinum polyynes of the form trans-[-Pt(PBu ₃) ₂C ≡ CArC ≡ C(ER ₂)C ≡ CArC ≡ C-] _n (Ar = 9-butylcarbazole-3,6-diyl, ER ₂ = SiMe ₂, SiPh ₂, GeMe ₂, GePh ₂) were synthesized and spectroscopically characterized. The solution properties and regiochemical structures of this new structural class of organosilicon- and organogermanium-based metallopolyynes were studied by IR and NMR ( ¹H, ¹³C, ²⁹Si, and ³¹P) spectroscopies. The optical absorption and photoluminescence spectra of these metallopolymers were examined and compared with their well-defined dinuclear model complexes trans-[Pt(Ph)(PEt ₃) ₂C ≡ CArC ≡ C(ER ₂)C ≡ CArC ≡ CPt(Ph)(PEt ₃) ₂]. The influence of the heavy platinum atom and the group 14 silyl or germyl structural unit possessing different side group substituents on the thermal and phosphorescence properties were investigated in detail. We have also established the goal for studying the evolution of the lowest singlet and triplet excited states with the nature of ER ₂ unit in these metallopolymers. The present work indicates that the phosphorescence emission efficiency harnessed through the heavy-atom effect of platinum in the main chain changes significantly with the identity of ER ₂ in the general orders GeR ₂ > SiR ₂ (R = Me, Ph) and EMe ₂ > EPh ₂ (E = Si, Ge).

Original language	English
Pages (from-to)	189-200
Number of pages	12
Journal	Journal of Inorganic and Organometallic Polymers and Materials
Volume	17
Issue number	1
DOIs	https://doi.org/10.1007/s10904-006-9082-3
Publication status	Published - Mar 2007

Scopus Subject Areas

Polymers and Plastics
Materials Chemistry

User-Defined Keywords

Alkyne
Carbazole
Germanium
Phosphorescence
Platinum
Polyyne
Silicon

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10.1007/s10904-006-9082-3

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@article{7340384867d146bc94b12f8d182f435d,

title = "Synthesis, optical properties, and photoluminescence of organometallic acetylide polymers of platinum functionalized with Si and Ge-bridged bis(3,6-diethynyl-9-butylcarbazole)",

abstract = "A series of light-emitting group 14 element-containing organometallic platinum polyynes of the form trans-[-Pt(PBu 3) 2C ≡ CArC ≡ C(ER 2)C ≡ CArC ≡ C-] n (Ar = 9-butylcarbazole-3,6-diyl, ER 2 = SiMe 2, SiPh 2, GeMe 2, GePh 2) were synthesized and spectroscopically characterized. The solution properties and regiochemical structures of this new structural class of organosilicon- and organogermanium-based metallopolyynes were studied by IR and NMR ( 1H, 13C, 29Si, and 31P) spectroscopies. The optical absorption and photoluminescence spectra of these metallopolymers were examined and compared with their well-defined dinuclear model complexes trans-[Pt(Ph)(PEt 3) 2C ≡ CArC ≡ C(ER 2)C ≡ CArC ≡ CPt(Ph)(PEt 3) 2]. The influence of the heavy platinum atom and the group 14 silyl or germyl structural unit possessing different side group substituents on the thermal and phosphorescence properties were investigated in detail. We have also established the goal for studying the evolution of the lowest singlet and triplet excited states with the nature of ER 2 unit in these metallopolymers. The present work indicates that the phosphorescence emission efficiency harnessed through the heavy-atom effect of platinum in the main chain changes significantly with the identity of ER 2 in the general orders GeR 2 > SiR 2 (R = Me, Ph) and EMe 2 > EPh 2 (E = Si, Ge).",

keywords = "Alkyne, Carbazole, Germanium, Phosphorescence, Platinum, Polyyne, Silicon",

author = "Wong, {Wai Yeung} and Poon, {Suk Yue} and Shi, {Jian Xin} and Cheah, {Kok Wai}",

note = "Funding Information: Financial support from the Hong Kong Research Grants Council (HKBU 2022/03P) and Hong Kong Baptist University is gratefully acknowledged.",

year = "2007",

month = mar,

doi = "10.1007/s10904-006-9082-3",

language = "English",

volume = "17",

pages = "189--200",

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

issn = "1574-1443",

publisher = "Springer",

number = "1",

}

Synthesis, optical properties, and photoluminescence of organometallic acetylide polymers of platinum functionalized with Si and Ge-bridged bis(3,6-diethynyl-9-butylcarbazole). / Wong, Wai Yeung; Poon, Suk Yue; Shi, Jian Xin et al.
In: Journal of Inorganic and Organometallic Polymers and Materials, Vol. 17, No. 1, 03.2007, p. 189-200.

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

TY - JOUR

T1 - Synthesis, optical properties, and photoluminescence of organometallic acetylide polymers of platinum functionalized with Si and Ge-bridged bis(3,6-diethynyl-9-butylcarbazole)

AU - Wong, Wai Yeung

AU - Poon, Suk Yue

AU - Shi, Jian Xin

AU - Cheah, Kok Wai

N1 - Funding Information: Financial support from the Hong Kong Research Grants Council (HKBU 2022/03P) and Hong Kong Baptist University is gratefully acknowledged.

PY - 2007/3

Y1 - 2007/3

N2 - A series of light-emitting group 14 element-containing organometallic platinum polyynes of the form trans-[-Pt(PBu 3) 2C ≡ CArC ≡ C(ER 2)C ≡ CArC ≡ C-] n (Ar = 9-butylcarbazole-3,6-diyl, ER 2 = SiMe 2, SiPh 2, GeMe 2, GePh 2) were synthesized and spectroscopically characterized. The solution properties and regiochemical structures of this new structural class of organosilicon- and organogermanium-based metallopolyynes were studied by IR and NMR ( 1H, 13C, 29Si, and 31P) spectroscopies. The optical absorption and photoluminescence spectra of these metallopolymers were examined and compared with their well-defined dinuclear model complexes trans-[Pt(Ph)(PEt 3) 2C ≡ CArC ≡ C(ER 2)C ≡ CArC ≡ CPt(Ph)(PEt 3) 2]. The influence of the heavy platinum atom and the group 14 silyl or germyl structural unit possessing different side group substituents on the thermal and phosphorescence properties were investigated in detail. We have also established the goal for studying the evolution of the lowest singlet and triplet excited states with the nature of ER 2 unit in these metallopolymers. The present work indicates that the phosphorescence emission efficiency harnessed through the heavy-atom effect of platinum in the main chain changes significantly with the identity of ER 2 in the general orders GeR 2 > SiR 2 (R = Me, Ph) and EMe 2 > EPh 2 (E = Si, Ge).

AB - A series of light-emitting group 14 element-containing organometallic platinum polyynes of the form trans-[-Pt(PBu 3) 2C ≡ CArC ≡ C(ER 2)C ≡ CArC ≡ C-] n (Ar = 9-butylcarbazole-3,6-diyl, ER 2 = SiMe 2, SiPh 2, GeMe 2, GePh 2) were synthesized and spectroscopically characterized. The solution properties and regiochemical structures of this new structural class of organosilicon- and organogermanium-based metallopolyynes were studied by IR and NMR ( 1H, 13C, 29Si, and 31P) spectroscopies. The optical absorption and photoluminescence spectra of these metallopolymers were examined and compared with their well-defined dinuclear model complexes trans-[Pt(Ph)(PEt 3) 2C ≡ CArC ≡ C(ER 2)C ≡ CArC ≡ CPt(Ph)(PEt 3) 2]. The influence of the heavy platinum atom and the group 14 silyl or germyl structural unit possessing different side group substituents on the thermal and phosphorescence properties were investigated in detail. We have also established the goal for studying the evolution of the lowest singlet and triplet excited states with the nature of ER 2 unit in these metallopolymers. The present work indicates that the phosphorescence emission efficiency harnessed through the heavy-atom effect of platinum in the main chain changes significantly with the identity of ER 2 in the general orders GeR 2 > SiR 2 (R = Me, Ph) and EMe 2 > EPh 2 (E = Si, Ge).

KW - Alkyne

KW - Carbazole

KW - Germanium

KW - Phosphorescence

KW - Platinum

KW - Polyyne

KW - Silicon

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U2 - 10.1007/s10904-006-9082-3

DO - 10.1007/s10904-006-9082-3

M3 - Journal article

AN - SCOPUS:34147127386

SN - 1574-1443

VL - 17

SP - 189

EP - 200

JO - Journal of Inorganic and Organometallic Polymers and Materials

JF - Journal of Inorganic and Organometallic Polymers and Materials

IS - 1

ER -

Synthesis, optical properties, and photoluminescence of organometallic acetylide polymers of platinum functionalized with Si and Ge-bridged bis(3,6-diethynyl-9-butylcarbazole)

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