Systematic investigation of the influence of electronic substituents on dinuclear gold(i) amidinates: synthesis, characterisation and photoluminescence studies

Abstract

Binuclear gold(i) amidinate compounds with a variety of sidechains were synthesised. The photoluminescence properties of these compounds were investigated and analysed by quantum chemical calculations.

Cooperativity in luminescent heterobimetallic diphosphine-β-diketiminate complexes

“…A similar “charge-separated” structure was observed for the related binuclear Au I complex [dpfam 2 Au 2 ] (dpfam = N , N ′-bis[(2-diphenylphosphino)phenyl]-formamidinate). 39 The distances between the Au I centre and the N atoms are 2.858(5) Å (Au–N1) and 2.866(5) Å (Au–N2), which are beyond typical Au–N bond distances (2.03 Å to 2.38 Å), 46,47 hence ruling out a bonding interaction. The C–N (1.305(8) Å and 1.311(8) Å) and C–C bonds (1.405(9) Å and 1.397(9) Å) in the β-diketiminato backbone show bond lengths between single and double bonds, indicating the delocalisation of the negative charge.…”

Discrete Singular Metallophilic Interaction in Stable Large 12-Membered Binuclear Silver and Gold Metallamacrocycles of Amido-Functionalized Imidazole and 1,2,4-Triazole-Derived N-Heterocyclic Carbenes

“…A primary challenge for studying these interactions arises from their unrestricted extended aggregated nature, which seriously restricts designing systems with discrete singular interactions for a comprehensive study of the metallophilic interaction. , These interactions are ubiquitous and can be mainly manipulated with supported and unsupported ligand systems in designing supramolecular assemblies. ,, However, the approach to design complexes exhibiting discrete singular metallophilic interactions remains a formidable task with fewer examples prevalent in the literature. ,,− …”

“… 6 , 10 , 23 However, the approach to design complexes exhibiting discrete singular metallophilic interactions remains a formidable task with fewer examples prevalent in the literature. 19 , 21 , 32 − 34 …”