Synthesis, Light-Emitting, and Two-Photon Absorption Properties of Platinum-Containing Poly(arylene-ethynylene)s Linked by 1,3,4-Oxadiazole Units

doi:10.1021/ma1009319

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	Synthesis, Light-Emitting, and Two-Photon Absorption Properties of Platinum-Containing Poly(arylene-ethynylene)s Linked by 1,3,4-Oxadiazole Units
	Goudreault, Thomas 1; He, Ze 2,3; Guo, Yank ; Ho, Cheuk-Lam 2,3; Zhan, Hongmei 2,3; Wang, Qiwei 2,3; Ho, Keith Yat-Fung 5; Wong, Ka-Leung 2,3; Fortin, Daniel 1; Yao, Bing 4
刊名	MACROMOLECULES
	2010-10-12
卷号	43 期号:19 页码:7936-7949
ISSN号	0024-9297
DOI	10.1021/ma1009319
英文摘要	A series of soluble and thermally stable group 10 platinum(II) polyyne polymers of the type [-C equivalent to C- P1(PBu(3))(2)-C equivalent to C-Ar-Ox-Ar-](n) (where Ox = 1,3,4-oxadiazole, Ar = p-C(6)H(4) or 2,7-dihexy]-9.9-fluorene) and [-C equivalent to C-Pt(PBu(3))(2)-C equivalent to C-Ar-Ox-Ar-Ox-Ar](n) (where Ar = 2,7-dihexy]-9.9-fluorene) along with their corresponding dinuclear model compounds [Ph-P1(PEt(3))(2)-C equivalent to C-Ar-l(2)-Ox-(where Ar = p-C(6)H(4) or 2,7-dihexy1-9,9-fluorene) and [Ph-Pt(PEt(3))(2)-C equivalent to C-Ar-Ox-](2)-Ar- (where Ar = 2,7-dihexyl-9,9-fluorene) were prepared and characterized. The regiochemical structure of the polymers has been ascertained by single-crystal X-ray analysis on the model compound [Ph-Pt(PEt(3))(2)-C equivalent to C-p-C(6)H(4)-l(2)-Ox- The photophysical properties (absorption, excitation, emission, and nanosecond transient absorption spectra) of these metalated compounds in 2MeTHF at 298 and 77 K are reported. These findings are correlated by density functional theory (DFT) calculations. Geometry optimizations predict totally planar molecules for these metalated complexes and polymers, allowing better pi-conjugation across the main chain. The ligands are strongly fluorescent but become also phosphorescent when the Pt atom is introduced in the backbone of the conjugated organometa Hie complexes and polymers. These emissions arc assigned to pi pi* transitions in all cases involving the Ptd(xy) orbitals. These Pt compounds exhibit two-photon absorption (2PA), and their 2PA cross sections (sigma 2) have been determined. The potential of exploiting such metallopolymers for the design of electrophosphorescent polymer light-emitting devices (PLEDs) and their use as single-dopant for white PLEDs have also been discussed.
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000282478500013
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/69547]
专题	中国科学院化学研究所
通讯作者	Harvey, Pierre D.
作者单位	1.Univ Sherbrooke, Dept Chim, Sherbrooke, PQ J1K 2R1, Canada 2.Hong Kong Baptist Univ, Ctr Adv Luminescence Mat, Kowloon Tong, Hong Kong, Peoples R China 3.Hong Kong Baptist Univ, Dept Chem, Kowloon Tong, Hong Kong, Peoples R China 4.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 5.Hong Kong Polytech Univ, Dept Appl Biol & Chem Technol, Hong Kong, Hong Kong, Peoples R China
推荐引用方式 GB/T 7714	Goudreault, Thomas,He, Ze,Guo, Yank,et al. Synthesis, Light-Emitting, and Two-Photon Absorption Properties of Platinum-Containing Poly(arylene-ethynylene)s Linked by 1,3,4-Oxadiazole Units[J]. MACROMOLECULES,2010,43(19):7936-7949.
APA	Goudreault, Thomas.,He, Ze.,Guo, Yank.,Ho, Cheuk-Lam.,Zhan, Hongmei.,...&Wong, Wai-Yeung.(2010).Synthesis, Light-Emitting, and Two-Photon Absorption Properties of Platinum-Containing Poly(arylene-ethynylene)s Linked by 1,3,4-Oxadiazole Units.MACROMOLECULES,43(19),7936-7949.
MLA	Goudreault, Thomas,et al."Synthesis, Light-Emitting, and Two-Photon Absorption Properties of Platinum-Containing Poly(arylene-ethynylene)s Linked by 1,3,4-Oxadiazole Units".MACROMOLECULES 43.19(2010):7936-7949.