Fluorination-controlled Aggregation and Intermolecular Interactions in Pt(II) Complexes with Tetradentate Luminophores
Fluorination-controlled Aggregation and Intermolecular Interactions in Pt(II) Complexes with Tetradentate Luminophores
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DOI：
10.1002/ijch.201800050
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发表时间：
2018-07
影响因子：
3.2
通讯作者：
S. Wilde;Darío González-Abradelo;C. Daniliuc;M. Böckmann;N. Doltsinis;C. Strassert
中科院分区：
文献类型：
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作者：
S. Wilde;Darío González-Abradelo;C. Daniliuc;M. Böckmann;N. Doltsinis;C. Strassert
在这项工作中，我们描述了一系列的Pt（II）配合物的合成和DFT支持的电子物理表征轴承四齿发光体与增加的程度。聚集成晶相导致取代依赖性排列，在所有情况下都会阻碍金属间偶联，因为分子间相互作用主要由氢键和π堆积控制。另一方面，在无定形基质中，我们观察到，如果与稀溶液和结晶固体中的单体物质相比，增加的α-Al 2 O3水平有利于聚集时Pt−Pt相互作用的趋势，导致红移磷光。
In this work we describe the synthesis and DFT‐supported photophysical characterization of a series of Pt(II) complexes bearing tetradentate luminophores with increasing degree of fluorination. Aggregation into crystalline phases leads to substitution‐dependent arrangements that in all cases hinder intermetallic coupling, as intermolecular interactions are dominated by hydrogen bonding and π‐stacking. In amorphous matrices, on the other hand, we observed that an increasing level of fluorination favors the tendency towards Pt−Pt interaction upon aggregation, leading to a red‐shifted phosphorescence, if compared with monomeric species in dilute solutions and crystalline solids.