Structure–Property Relationships in ...
Type de document :
Compte-rendu et recension critique d'ouvrage
Titre :
Structure–Property Relationships in Photoluminescent Bismuth Halide Organic Hybrid Materials
Auteur(s) :
Ayscue, R. Lee [Auteur]
Vallet, Valérie [Auteur]
Physico-Chimie Moléculaire Théorique [PCMT]
Bertke, Jeffery [Auteur]
Réal, Florent [Auteur correspondant]
Physico-Chimie Moléculaire Théorique [PCMT]
Knope, Karah [Auteur correspondant]
Vallet, Valérie [Auteur]
Physico-Chimie Moléculaire Théorique [PCMT]
Bertke, Jeffery [Auteur]
Réal, Florent [Auteur correspondant]
Physico-Chimie Moléculaire Théorique [PCMT]
Knope, Karah [Auteur correspondant]
Titre de la revue :
Inorganic Chemistry
Pagination :
9727--9744
Éditeur :
American Chemical Society
Date de publication :
2021-07-05
ISSN :
0020-1669
Discipline(s) HAL :
Chimie/Chimie théorique et/ou physique
Physique [physics]/Physique [physics]/Chimie-Physique [physics.chem-ph]
Physique [physics]/Physique [physics]/Chimie-Physique [physics.chem-ph]
Résumé en anglais : [en]
Seven novel bismuth(III)-halide phases, Bi<sub>2</sub>Cl<sub>6</sub>(terpy)<sub>2</sub>·0.5(H<sub>2</sub>O) (<b>1</b>), Bi<sub>2</sub>Cl<sub>4</sub>(terpy)<sub>2</sub>(<i>k</i><sub>2</sub>-TC)<sub>2</sub>(<b>2</b>) (TC = ...
Lire la suite >Seven novel bismuth(III)-halide phases, Bi<sub>2</sub>Cl<sub>6</sub>(terpy)<sub>2</sub>·0.5(H<sub>2</sub>O) (<b>1</b>), Bi<sub>2</sub>Cl<sub>4</sub>(terpy)<sub>2</sub>(<i>k</i><sub>2</sub>-TC)<sub>2</sub>(<b>2</b>) (TC = 2-thiophene monocarboxylate), BiCl(terpy)(<i>k</i><sub>2</sub>-TC)<sub>2</sub> (<b>3A-Cl</b>), BiBr(terpy)(<i>k</i><sub>2</sub>-TC)<sub>2</sub> (<b>3A-Br</b>), BiCl(terpy)(<i>k</i><sub>2</sub>-TC)<sub>2</sub> (<b>3B-Cl</b>), [BiCl(terpy)(<i>k</i><sub>2</sub>-TC)<sub>2</sub>][Bi(terpy)(<i>k</i><sub>2</sub>-TC)<sub>3</sub>]·0.55(TCA) (<b>4</b>), [BiBr<sub>3</sub>(terpy)(MeOH)] (<b>5</b>), and [BiBr<sub>2</sub>(terpy)(<i>k</i><sub>2</sub>-TC)][BiBr<sub>1.16</sub>(terpy)(<i>k</i><sub>2</sub>-TC)<sub>1.84</sub>] (<b>6</b>), were prepared under mild synthetic conditions from methanolic/aqueous solutions containing BiX<sub>3</sub> (X = Cl, Br) and 2,2′:6′,2″-terpyridine (terpy) and/or 2-thiophene monocarboxylic acid (TCA). A heterometallic series, <b>3A-Bi<sub>1–x</sub>Eu<sub>x</sub>Cl</b>, with the general formula Bi<sub>1–x</sub>Eu<sub>x</sub>Cl(terpy)(<i>k</i><sub>2</sub>-TC)<sub>2</sub> (x = 0.001, 0.005, 0.01, 0.05) was also prepared through trace Eu doping of the <b>3A-Cl</b> phase. The structures were determined through single-crystal X-ray diffraction and are built from a range of molecular units including monomeric and dimeric complexes. The solid-state photoluminescent properties of the compounds were examined through steady-state and time-resolved methods. While the homometallic phases exhibited broad green to yellow emission, the heterometallic phases displayed yellow, orange, and red emission that can be attributed to the simultaneous ligand/Bi-halide and Eu centered emissions. Photoluminescent color tuning was achieved by controlling the relative intensities of these concurrent emissions through compositional modifications including the Eu doping percentage. Notably, all emissive homo- and heterometallic phases exhibited rare visible excitation pathways that based on theoretical quantum mechanical calculations are attributed to halide-metal to ligand charge transfer (XMLCT). Through a combined experimental and computational approach, fundamental insight into the structure–property relationships within these Bi halide organic hybrid materials is provided.Lire moins >
Lire la suite >Seven novel bismuth(III)-halide phases, Bi<sub>2</sub>Cl<sub>6</sub>(terpy)<sub>2</sub>·0.5(H<sub>2</sub>O) (<b>1</b>), Bi<sub>2</sub>Cl<sub>4</sub>(terpy)<sub>2</sub>(<i>k</i><sub>2</sub>-TC)<sub>2</sub>(<b>2</b>) (TC = 2-thiophene monocarboxylate), BiCl(terpy)(<i>k</i><sub>2</sub>-TC)<sub>2</sub> (<b>3A-Cl</b>), BiBr(terpy)(<i>k</i><sub>2</sub>-TC)<sub>2</sub> (<b>3A-Br</b>), BiCl(terpy)(<i>k</i><sub>2</sub>-TC)<sub>2</sub> (<b>3B-Cl</b>), [BiCl(terpy)(<i>k</i><sub>2</sub>-TC)<sub>2</sub>][Bi(terpy)(<i>k</i><sub>2</sub>-TC)<sub>3</sub>]·0.55(TCA) (<b>4</b>), [BiBr<sub>3</sub>(terpy)(MeOH)] (<b>5</b>), and [BiBr<sub>2</sub>(terpy)(<i>k</i><sub>2</sub>-TC)][BiBr<sub>1.16</sub>(terpy)(<i>k</i><sub>2</sub>-TC)<sub>1.84</sub>] (<b>6</b>), were prepared under mild synthetic conditions from methanolic/aqueous solutions containing BiX<sub>3</sub> (X = Cl, Br) and 2,2′:6′,2″-terpyridine (terpy) and/or 2-thiophene monocarboxylic acid (TCA). A heterometallic series, <b>3A-Bi<sub>1–x</sub>Eu<sub>x</sub>Cl</b>, with the general formula Bi<sub>1–x</sub>Eu<sub>x</sub>Cl(terpy)(<i>k</i><sub>2</sub>-TC)<sub>2</sub> (x = 0.001, 0.005, 0.01, 0.05) was also prepared through trace Eu doping of the <b>3A-Cl</b> phase. The structures were determined through single-crystal X-ray diffraction and are built from a range of molecular units including monomeric and dimeric complexes. The solid-state photoluminescent properties of the compounds were examined through steady-state and time-resolved methods. While the homometallic phases exhibited broad green to yellow emission, the heterometallic phases displayed yellow, orange, and red emission that can be attributed to the simultaneous ligand/Bi-halide and Eu centered emissions. Photoluminescent color tuning was achieved by controlling the relative intensities of these concurrent emissions through compositional modifications including the Eu doping percentage. Notably, all emissive homo- and heterometallic phases exhibited rare visible excitation pathways that based on theoretical quantum mechanical calculations are attributed to halide-metal to ligand charge transfer (XMLCT). Through a combined experimental and computational approach, fundamental insight into the structure–property relationships within these Bi halide organic hybrid materials is provided.Lire moins >
Langue :
Anglais
Vulgarisation :
Non
Projet ANR :
Source :
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