Effect of Peripheral Substituents on Luminescent Properties of the Porphyrin Platinum(II) Complexes

doi:10.7503/cjcu20130944

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	Effect of Peripheral Substituents on Luminescent Properties of the Porphyrin Platinum(II) Complexes
	Yuan Wei 1,2; Ren Qingjiang 1; Sun Hengda 1,2; Li Hui 1; Cheng Yanxiang 1; Ma Dongge 1
刊名	CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
	2014-06-10
卷号	35 期号:6 页码:1229-1235
关键词	PorphyIin Platinum (Ii) Complex Substituent Intermolecular Interaction Hindrance Effect Electroluminescent
ISSN号	0251-0790
DOI	10.7503/cjcu20130944
英文摘要	Porphyrin platinum (IT) complexes with efficient red phosphorescent emission have attracted extensive interest due to their potential application in the organic light emitting diodes (OLEDs). However, the strong pi-pi intermolecular interactions derived from their rigid planar coordination geometry result in the occurrence of self-quenching and affect their performance. In this work, a series of porphyrin platinum(II) complexes with different peripheral substituents (PtTEMP, PtTBMP, PtOMPP and PtDMPP) were designed, synthesized and characterized, for the purpose of effectively restraining the intermolecular pi-pi interaction. Single crystal X-ray structure analysis indicated that they had ideal square-planar geometry around Pt atom, and bulky t-butyl substituent could inhibit effectively pi-pi interactions. The peripheral substituents hardly affected absorption and emission properties of the complexes, and the luminescent peaks at 646-656 nm were assigned to (LC)-L-3 phosphorescent emission. PtTBMP showed the highest emission quantum yield (0. 58) and external quantum efficiency(EQE, 6. 3%) due to strong steric effect of t-butyl. The luminous efficiency of PtDMPP with three methoxyl substitutents was better than PtOMPP with two methoxyl, the corresponding emission quantum yield were 0. 36 and 0. 29, and were 2. 4% and 1. 7%, respectively. The results indicated that the encapsulating effect of the peripheral substituents could improve luminescent efficiency of porphyrin platinum(II) complexes.
语种	英语
出版者	HIGHER EDUCATION PRESS
WOS记录号	WOS:000338273200017
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/51139]
专题	中国科学院化学研究所
通讯作者	Li Hui
作者单位	1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Yuan Wei,Ren Qingjiang,Sun Hengda,et al. Effect of Peripheral Substituents on Luminescent Properties of the Porphyrin Platinum(II) Complexes[J]. CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,2014,35(6):1229-1235.
APA	Yuan Wei,Ren Qingjiang,Sun Hengda,Li Hui,Cheng Yanxiang,&Ma Dongge.(2014).Effect of Peripheral Substituents on Luminescent Properties of the Porphyrin Platinum(II) Complexes.CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,35(6),1229-1235.
MLA	Yuan Wei,et al."Effect of Peripheral Substituents on Luminescent Properties of the Porphyrin Platinum(II) Complexes".CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE 35.6(2014):1229-1235.