Aurophilicity and Photoluminescence of (6-Diphenylpnicogenoacenaphth-5-yl)gold Compounds
Aurophilicity and Photoluminescence of (6-Diphenylpnicogenoacenaphth-5-yl)gold Compounds
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DOI：
10.1002/ejic.201801190
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发表时间：
2019-02
影响因子：
2.3
通讯作者：
T. G. Do;E. Hupf;E. Lork;J. Kögel;F. Mohr;Alex Brown;Ryojun Toyoda;R. Sakamoto;H. Nishihara;S. Mebs;J. Beckmann
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文献类型：
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作者：
T. G. Do;E. Hupf;E. Lork;J. Kögel;F. Mohr;Alex Brown;Ryojun Toyoda;R. Sakamoto;H. Nishihara;S. Mebs;J. Beckmann
制备了有机锡前体 6-Br-Ace-5-SnBu3(6, Ace = 苊基) 和 6-Ph2E-Ace-5-SnBu3(7a: E = P;7b: E = As;7c: E = Sb) 并用于合成有机金配合物，即同双核芳基金 (I) 物质(6-Ph2E-Ace-5-Au)2(8a: E = P;8b: E = As;8c: E = Sb)、二氯化芳基金(III) 6-Ph2P-Ace-5-AuCl2(9)、氯化二芳基金(III) [反式-(6-Ph2P-Ace-5-)2Au]Cl ([10]Cl)，以及异双核金配合物6-Ph2P(AuX)-Ace-5-Au(AsPh3) (11a: X = Cl;11b: X = Br)。化合物 8a-8c、11a 和 11b 显示出显着的亲金相互作用，这与其暴露于紫外线时的光致发光有关。在固态下，11a和11b显示绿黄色发射光，而8a-8则不发射光。在氩气氛下的溶液中，所有五种化合物 8a-8cas 以及 11a 和 11b 均显示绿黄色发射。通过多核核磁共振光谱、光致发光光谱、单晶X射线晶体学以及(TD-)DFT计算对有机金配合物进行了表征，包括源自分子中原子的实空间键指示剂(AIM)、电子定位指示剂(ELI-D)和非共价相互作用(NCI)指数。
The organotin precursors 6‐Br‐Ace‐5‐SnBu3(6, Ace = acenaphthyl) and 6‐Ph2E‐Ace‐5‐SnBu3(7a: E = P;7b: E = As;7c: E = Sb) were prepared and used for the synthesis of organogold complexes, namely, the homodinuclear arylgold(I) species (6‐Ph2E‐Ace‐5‐Au)2(8a: E = P;8b: E = As;8c: E = Sb), arylgold(III) dichloride 6‐Ph2P‐Ace‐5‐AuCl2(9), diarylgold(III) chloride [trans‐(6‐Ph2P‐Ace‐5‐)2Au]Cl ([10]Cl), as well as the heterodinuclear gold complexes 6‐Ph2P(AuX)‐Ace‐5‐Au(AsPh3) (11a: X = Cl;11b: X = Br). Compounds8a‐8c,11a, and11bshow significant aurophilic interactions, which are related to their photoluminescence upon exposure to UV light. In the solid state,11aand11bshow green‐yellow emission, whereas8a‐8care non‐emissive. In solution under an argon atmosphere, all five compounds8a‐8cas well as11aand11bshow green‐yellow emission. The organogold complexes were characterized by multinuclear NMR spectroscopy, photoluminescence spectroscopy, single‐crystal X‐ray crystallography, as well as (TD‐)DFT calculations including real‐space bond indicators derived from atoms‐in‐molecules (AIM), the electron localization indicator (ELI‐D), and the non‐covalent interaction (NCI) index.