Premium
Planar 2‐Pyridyl‐1,2,3‐triazole Derived Metallo‐ligands: Self‐assembly with PdCl 2 and Photocatalysis
Author(s) -
Lagesse Natalie R.,
Tan Kelvin Y. L.,
Crowley James D.,
Findlay James A.
Publication year - 2020
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.202000284
Subject(s) - chemistry , denticity , electrospray ionization , palladium , aryl , triazole , cycloaddition , linker , crystallography , anthracene , click chemistry , singlet oxygen , photochemistry , stereochemistry , combinatorial chemistry , mass spectrometry , crystal structure , catalysis , organic chemistry , oxygen , alkyl , operating system , chromatography , computer science
Self‐assembled metallosupramolecular architectures (MSAs) with built‐in functionalities such as light‐harvesting metal centers are a promising approach for developing emergent properties within discrete molecular systems. Herein we describe the synthesis of two new but simple “click” ligands featuring a bidentate 2‐pyridyl‐1,2,3‐triazole chelate pocket linked to a monodentate pyridyl (either 3‐ or 4‐substituted, L1 and L2 ) unit. The ligands and the corresponding four Pd II and Pt II metallo‐ligands ( Pd1 , Pd2 , Pt1 and Pt2 ) were synthesized and characterized using nuclear magnetic resonance (NMR) spectroscopy, electrospray ionization mass spectrometry (ESI‐MS), and X‐ray crystallography. Solid‐state characterization of the series of ligands and metallo‐ligands revealed that these compounds display a co‐planar conformation of all the aryl units. The Pt II containing metallo‐ligands ( Pt1 and Pt2 ) were found to assemble into square ( Sqr ) and triangular ( Tri ) shaped architectures when combined with neutral PdCl 2 linker units. Additionally, the ability of the Pt II metallo‐ligands and Tri to photocatalyze the cycloaddition of singlet oxygen to anthracene was investigated.