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Synthesis of Triple‐Stranded Diruthenium(II) Compounds
Author(s) -
Flint Kate L.,
Huang David M.,
LinderPatton Oliver M.,
Sumby Christopher J.,
Keene F. Richard
Publication year - 2022
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.202200225
Subject(s) - chemistry , diastereomer , enantiomer , ligand (biochemistry) , stereochemistry , ruthenium , combinatorial chemistry , organic chemistry , catalysis , biochemistry , receptor
A series of ligands containing a 1,4‐disubstituted 1,2,3‐triazole unit have been used for the formation of triple‐stranded dinuclear Ru(II) complexes. In contrast to the previously reported complexes of labile metals, the use of inert Ru(II) enabled stereoisomeric mixtures of triple‐stranded diruthenium(II) complexes to be accessed. The chromatographic resolution of the enantiomers of a reported helicate containing a more rigid 1,4‐xylyl spacer was carried out on cellulose. The ligand spacer was modified and as the flexibility increased the production of isomeric mixtures was detected; the mesocate and helicate forms were separated when an n ‐propyl spacer was used. This pair of diastereomers was found to exhibit photoconversion, a unique observation for Ru(II) compounds of this type. Partial separation via chromatographic resolution was achieved for compounds containing an n ‐butyl spacer, and the presence of a mesocate/helicate pair confirmed.