Molecular design of a novel ligand for Menshutkin complexation of Bi(iii) from aqueous acidic copper sulfate electrolyte solutions and experimental investigations

Abstract

A novel silica functionalised phen–arene adsorbent exhibits reversible and highly selective adsorption of Bi(iii) over Cu(ii) ions by Menshutkin complexation from an aqueous acidic copper electrolyte solution.

Intriguing Effects of Halogen Substitution on the Photophysical Properties of 2,9-(Bis)halo-Substituted Phenanthrolinecopper(I) Complexes

“…Less is known about the impact of electronic effects of these groups although a great many structures have already been exposed in the literature (e.g. alkoxy 24,25 and thioalkoxy, 26 primary and secondary amines, 27 phosphine and phosphine oxide, 28 amide, 29 imidazole and imidazolium, 30 etc.). Let us nevertheless mention the case of a luminescent heteroleptic copper(I) complex where the metal ion is coordinated by the famous diphosphine…”

“…The great majority of photophysical studies on copper(I) complexes focus on the steric features of alkyl and aryl substituents at the 2 and 9 positions, mainly shielding the copper center from the solvent. Less is known about the impact of the electronic effects of these groups, although a great many structures have already been exposed in the literature (e.g., alkoxy 24,25 and thioalkoxy, 26 primary and secondary amines, 27 phosphine and phosphine oxide, 28 amide, 29 imidazole and imidazolium, 30 etc.). Let us, nevertheless, mention the case of a luminescent heteroleptic copper(I) complex, where the metal ion is coordinated by the famous diphosphine xantphos and bipyridine bearing chlorine and bromine atoms in the α positions of the chelating nitrogen atoms, for organic-light-emitting-diode applications.…”

Fifty Shades of Phenanthroline: Synthesis Strategies to Functionalize 1,10-Phenanthroline in All Positions

“…1160 exhibits the usual reactivity of 396 as demonstrated in Scheme 231, where the chlorine atoms in positions 2 and 9 are efficiently substituted by phenolates to form 1165. 1073 The added phenoxy groups are known to improve the affinity of phen for Bi(III) ions. 1165 is easily grafted on porous silica and preparatorily treated with (γ-chloropropyl)triethoxysilane, thus affording a solid-state "Bi(III) ions sponge" for decontamination of copper(II) crude extraction solutions.…”

“…Regarding reactions involving the C−halogen bond in 1144, 1145, and derivatives thereof, to date two kinds of reactions have been reported: catalyzed cross-coupling reactions 974,1090,1095,1102 and aromatic nucleophilic substitutions. 916,1073,1085,1089,1096,1103,1104 Cross-coupling reactions have rarely been performed directly on 1144 or 1145. The sole example reported in the literature is depicted in Scheme 252 and consists of a Suzuki crosscoupling involving 1145 and boronic pinacol ester 1207 in classical conditions.…”

Formation of sandwich and multidecker complexes between O2 and alkali/alkaline earth metals: a DFT study

“…24,25 Other than mononuclear complexes, reports on multinuclear sandwich and multidecker complexes are also present in the literature. 14 A number of recent studies have dwelt on the metalÁ Á Áp interactions involving organometallic compounds of antimony and bismuth; [26][27][28][29][30][31][32][33][34][35] especially, interaction of neutral atoms of alkali metals and alkaline earth metals with aromatic p-systems has been studied at length by a couple of research groups. [36][37][38][39] Very recently Januja has shown greater efficacy of alkali metals in interacting with hydrogen and designed alkali metal encapsulated gallium nitride clusters as a new hydrogen storage material.…”