Lanthanide dicyanoaurate coordination polymers containing 1,10-phenanthroline: Synthesis, structure, and luminescence

Jeffrey M. Hendrich; Frankie D. White; Richard E. Sykora

doi:10.1016/j.ica.2021.120562

Lanthanide dicyanoaurate coordination polymers containing 1,10-phenanthroline: Synthesis, structure, and luminescence

Jeffrey M. Hendrich
, Frankie D. White
, Richard E. Sykora

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

The synthesis of two novel lanthanide dicyanoaurates containing the bidentate ligand 1,10-phenanthroline (phen) have been carried out by reaction of select lanthanide nitrate salts with phen and potassium dicyanoaurate. The resultant compounds, [Ln(C₁₂H₈N₂)(H₂O)₂{Au(CN)₂}₃] (Ln = Gd, Tb), are isostructural as established by single-crystal X-ray diffraction studies. Prominent structural features in these one-dimensional polymeric compounds are the existence of hexameric aurophilic interactions containing kinked Au₆ units, π-stacking from partial phen ring alignment, and strong H-bonding interactions. Photoluminescence measurements illustrate that [Tb(C₁₂H₈N₂)(H₂O)₂{Au(CN)₂}₃] displays enhanced Tb-based emission due to intramolecular energy transfer from the coordinated ligands while [Gd(C₁₂H₈N₂)(H₂O)₂{Au(CN)₂}₃], which lacks low-lying electronic states, exhibits broad-band ligand-based emission.

Original language	English
Article number	120562
Journal	Inorganica Chimica Acta
Volume	527
DOIs	https://doi.org/10.1016/j.ica.2021.120562
State	Published - Nov 1 2021
Externally published	Yes

Keywords

1,10-Phenanthroline
Dicyanoaurate
Energy transfer
Lanthanide
Photoluminescence
Single-crystal X-ray diffraction

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10.1016/j.ica.2021.120562

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@article{70017f92dada444eb46ec0d427f37ab2,

title = "Lanthanide dicyanoaurate coordination polymers containing 1,10-phenanthroline: Synthesis, structure, and luminescence",

abstract = "The synthesis of two novel lanthanide dicyanoaurates containing the bidentate ligand 1,10-phenanthroline (phen) have been carried out by reaction of select lanthanide nitrate salts with phen and potassium dicyanoaurate. The resultant compounds, [Ln(C12H8N2)(H2O)2\{Au(CN)2\}3] (Ln = Gd, Tb), are isostructural as established by single-crystal X-ray diffraction studies. Prominent structural features in these one-dimensional polymeric compounds are the existence of hexameric aurophilic interactions containing kinked Au6 units, π-stacking from partial phen ring alignment, and strong H-bonding interactions. Photoluminescence measurements illustrate that [Tb(C12H8N2)(H2O)2\{Au(CN)2\}3] displays enhanced Tb-based emission due to intramolecular energy transfer from the coordinated ligands while [Gd(C12H8N2)(H2O)2\{Au(CN)2\}3], which lacks low-lying electronic states, exhibits broad-band ligand-based emission.",

keywords = "1,10-Phenanthroline, Dicyanoaurate, Energy transfer, Lanthanide, Photoluminescence, Single-crystal X-ray diffraction",

author = "Hendrich, \{Jeffrey M.\} and White, \{Frankie D.\} and Sykora, \{Richard E.\}",

note = "Publisher Copyright: {\textcopyright} 2021 Elsevier B.V.",

year = "2021",

month = nov,

day = "1",

doi = "10.1016/j.ica.2021.120562",

language = "English",

volume = "527",

journal = "Inorganica Chimica Acta",

issn = "0020-1693",

publisher = "Elsevier",

}

TY - JOUR

T1 - Lanthanide dicyanoaurate coordination polymers containing 1,10-phenanthroline

T2 - Synthesis, structure, and luminescence

AU - Hendrich, Jeffrey M.

AU - White, Frankie D.

AU - Sykora, Richard E.

PY - 2021/11/1

Y1 - 2021/11/1

N2 - The synthesis of two novel lanthanide dicyanoaurates containing the bidentate ligand 1,10-phenanthroline (phen) have been carried out by reaction of select lanthanide nitrate salts with phen and potassium dicyanoaurate. The resultant compounds, [Ln(C12H8N2)(H2O)2{Au(CN)2}3] (Ln = Gd, Tb), are isostructural as established by single-crystal X-ray diffraction studies. Prominent structural features in these one-dimensional polymeric compounds are the existence of hexameric aurophilic interactions containing kinked Au6 units, π-stacking from partial phen ring alignment, and strong H-bonding interactions. Photoluminescence measurements illustrate that [Tb(C12H8N2)(H2O)2{Au(CN)2}3] displays enhanced Tb-based emission due to intramolecular energy transfer from the coordinated ligands while [Gd(C12H8N2)(H2O)2{Au(CN)2}3], which lacks low-lying electronic states, exhibits broad-band ligand-based emission.

AB - The synthesis of two novel lanthanide dicyanoaurates containing the bidentate ligand 1,10-phenanthroline (phen) have been carried out by reaction of select lanthanide nitrate salts with phen and potassium dicyanoaurate. The resultant compounds, [Ln(C12H8N2)(H2O)2{Au(CN)2}3] (Ln = Gd, Tb), are isostructural as established by single-crystal X-ray diffraction studies. Prominent structural features in these one-dimensional polymeric compounds are the existence of hexameric aurophilic interactions containing kinked Au6 units, π-stacking from partial phen ring alignment, and strong H-bonding interactions. Photoluminescence measurements illustrate that [Tb(C12H8N2)(H2O)2{Au(CN)2}3] displays enhanced Tb-based emission due to intramolecular energy transfer from the coordinated ligands while [Gd(C12H8N2)(H2O)2{Au(CN)2}3], which lacks low-lying electronic states, exhibits broad-band ligand-based emission.

KW - 1,10-Phenanthroline

KW - Dicyanoaurate

KW - Energy transfer

KW - Lanthanide

KW - Photoluminescence

KW - Single-crystal X-ray diffraction

UR - https://www.scopus.com/pages/publications/85112825805

U2 - 10.1016/j.ica.2021.120562

DO - 10.1016/j.ica.2021.120562

M3 - Article

AN - SCOPUS:85112825805

SN - 0020-1693

VL - 527

JO - Inorganica Chimica Acta

JF - Inorganica Chimica Acta

M1 - 120562

ER -

Lanthanide dicyanoaurate coordination polymers containing 1,10-phenanthroline: Synthesis, structure, and luminescence

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