Premium
Aurophilicity and Photoluminescence of (6‐Diphenylpnicogenoacenaphth‐5‐yl)gold Compounds
Author(s) -
Do Truong Giang,
Hupf Emanuel,
Lork Enno,
Kögel Julius F.,
Mohr Fabian,
Brown Alex,
Toyoda Ryojun,
Sakamoto Ryota,
Nishihara Hiroshi,
Mebs Stefan,
Beckmann Jens
Publication year - 2019
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201801190
Subject(s) - chemistry , photoluminescence , crystallography , spectroscopy , covalent bond , molecule , chloride , stereochemistry , organic chemistry , physics , quantum mechanics , optics
The organotin precursors 6‐Br‐Ace‐5‐SnBu 3 ( 6 , Ace = acenaphthyl) and 6‐Ph 2 E‐Ace‐5‐SnBu 3 ( 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‐Ph 2 E‐Ace‐5‐Au) 2 ( 8a : E = P; 8b : E = As; 8c : E = Sb), arylgold(III) dichloride 6‐Ph 2 P‐Ace‐5‐AuCl 2 ( 9 ), diarylgold(III) chloride [ trans ‐(6‐Ph 2 P‐Ace‐5‐) 2 Au]Cl ([ 10 ]Cl), as well as the heterodinuclear gold complexes 6‐Ph 2 P(AuX)‐Ace‐5‐Au(AsPh 3 ) ( 11a : X = Cl; 11b : X = Br). Compounds 8a ‐ 8c , 11a , and 11b show significant aurophilic interactions, which are related to their photoluminescence upon exposure to UV light. In the solid state, 11a and 11b show green‐yellow emission, whereas 8a ‐ 8c are non‐emissive. In solution under an argon atmosphere, all five compounds 8a ‐ 8c as well as 11a and 11b show 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.