Assembly of photoluminescent [CunIn] (n = 4, 6 and 8) clusters by clickable hybrid [N,S] ligands

Shi-Qiang Bai; Lu Jiang; Ai Lin Tan; Sing Chen Yeo; David James Young; T S Andy Hor

doi:10.1039/c5qi00030k

Back

Assembly of photoluminescent [CunIn] (n = 4, 6 and 8) clusters by clickable hybrid [N,S] ligands

Journal article

Peer reviewed

Assembly of photoluminescent [CunIn] (n = 4, 6 and 8) clusters by clickable hybrid [N,S] ligands

Shi-Qiang Bai, Lu Jiang, Ai Lin Tan, Sing Chen Yeo, David James Young and T S Andy Hor

Inorganic Chemistry Frontiers, Vol.2(11), pp.1011-1018

2015

DOI: https://doi.org/10.1039/c5qi00030k

Files and links (1)

url

https://doi.org/10.1039/c5qi00030kView

Published Version

Abstract

Three new 1,2,3-triazole-based NS ligands, 2-((4-((benzylthio)methyl)-1H-1,2,3-triazol-1-yl)methyl)pyridine (L1), 2-((4-(2-(cyclopentylthio)ethyl)-1H-1,2,3-triazol-1-yl)methyl)pyridine (L2) and 2-((4-(2-(cyclopentylthio)ethyl)-1H-1,2,3-triazol-1-yl)methyl)quinoline (L3) and the corresponding copper(I)-iodide complexes [Cu4I4(L1)2] (1), [Cu6I6(L2)2] (2) and [Cu6I6(L3)2] (3A) have been prepared and characterized by single-crystal X-ray diffraction (XRD), powder XRD, photoluminescence spectroscopy and thermogravimetric analysis. Complexes 1, 2 and 3A exhibit stair-step [CunIn] (n = 4 and 6) cluster structures with supporting ligands L1, L2 and L3, respectively. Ligand L1 coordinates with a bidentate/monodentate binding mode in the [Cu4I4] cluster complex 1 using the pyridyl-triazole moiety and with a pendant -CH2SCH2Ph group. Increasing the length of the bridge from -CH2- in L1 to -C2H4- in L2 and L3 engages the S donor and these ligands coordinate using a bidentate/monodentate/monodentate mode supporting larger [Cu6I6] cluster complexes 2 and 3A. A kinetic product [Cu8I8(L3)2(CH3CN)2] (3B) was isolated from the reaction of L3 with CuI in CH3CN and the single-crystal X-ray structure indicates a rare discrete stair-step [Cu8I8] core supported by two L3 and two coordinated CH3CN solvates. The structure is further stabilized by intermolecular πâ‹¯π stacking interactions in the lattice. Isolation of 1-3 provides a good demonstration of the use of multidentate and multifunctional hybrid ligands in supporting [CunIn] clusters of different sizes (n = 4, 6, 8). Ligands L1-L3 are blue emissive molecules. The corresponding complexes display strong blue (1 and 2) or remarkable yellow (3A) emissions between 500 and 700 nm in the solid state. The structures of sulfur-containing ligands and their copper-iodide complexes are described and discussed.

Details

Title: Assembly of photoluminescent [CunIn] (n = 4, 6 and 8) clusters by clickable hybrid [N,S] ligands
Authors: Shi-Qiang Bai (Author) - Institute of Materials Research and Engineering, Singapore
Lu Jiang (Author) - Institute of Materials Research and Engineering, Singapore
Ai Lin Tan (Author) - National University of Singapore, Singapore
Sing Chen Yeo (Author) - National University of Singapore, Singapore
David James Young (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
T S Andy Hor (Author) - National University of Singapore, Singapore
Publication details: Inorganic Chemistry Frontiers, Vol.2(11), pp.1011-1018
Publisher: Royal Society of Chemistry (R S C) Publications
Date published: 2015
DOI: 10.1039/c5qi00030k
ISSN: 2052-1553
Organisation Unit: University of the Sunshine Coast, Queensland
Language: English
Record Identifier: 99449289902621
Output Type: Journal article

Metrics

24 File views/ downloads

678 Record Views

27 Times Cited - Web of Science

InCites Highlights

These are selected metrics from InCites Benchmarking & Analytics tool, related to this output

Collaboration types: Domestic collaboration; International collaboration
Web Of Science research areas: Chemistry, Inorganic & Nuclear