Self-Assembly of an Organic Chromophore with Cd-S Nanoclusters: Supramolecular Structures and Enhanced Emissions

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• 作者：Xuanjun Zhang ; Yupeng Tian ; Feng Jin ; Jieying Wu ; Yi Xie ; Xutang Tao ; and Minhua Jiang
• 刊名：Crystal Growth & Design
• 出版年：2005
• 出版时间：March 2005
• 年：2005
• 卷：5
• 期：2
• 页码：565 - 570
• 全文大小：311K
• 年卷期：v.5,no.2(March 2005)
• ISSN：1528-7505

文摘

By combination of the large organic cation [trans-4-(4-dimethylanilino-styryl)-N-methyl-pyridiniumwith nanocluster anions ([Cd₄(SC₆H₅)₁₀]^2- for compound 1 and [Cd₄(SC₆H₅)₆I₄]^2- for compound 2), two new hybridswere obtained and the structure of the [Cd₄(SC₆H₅)₆I₄]^2- cluster was first characterized by single-crystal X-raydiffraction. A novel supramolecular dimer {[Cd₄(SC₆H₅)₁₀]^2-}₂, connected via strong - interactions, was observedin 1, whereas every two [Cd₄(SC₆H₅)₆I₄]^2- clusters in 2 were linked by multiple C-H···I hydrogen bonds formingdimers, which, as building blocks, were further connected to each other via C-H···I hydrogen bonds and weak I···Iinteractions to form novel 1D helical chains. The UV-visible-near-IR spectra, one-photon excited photoluminescence,and two-photon pumped lasing were measured. The organic chromophore exhibits enhanced PL and two-photonpumped lasing in the two hybrids.