Details

Autor(en) / Beteiligte

• Sturner, Michelle A
• Thomas, Isla D
• Owusu-Koramoah, Joshua E
• Reynolds, Todd M
• Berry, Steven M
• Butcher, Raymond J
• Bebout, Deborah C

Titel

Aggregation behavior of group 12 complexes of a tripodal mixed NS(thiolato) donor ligand

Ist Teil von

• New journal of chemistry, 2024-02, Vol.48 (6), p.2547-2557

Ort / Verlag

Cambridge: Royal Society of Chemistry

Erscheinungsjahr

2024

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Despite the concurrence of histidine and cysteine in the active sites of proteins associated with Zn 2+ , Cd 2+ and Hg 2+ , coordination studies of these metal ions with chelating ligands containing a combination of aromatic amine and alkylthiolate (N A x S y − ) donors have been rare. The potentially tetradentate ligand 2-[bis(2-pyridinylmethyl)amino]ethanethiol ( LH ) and chloride salts were used to prepare new complexes of Cd 2+ and Hg 2+ for comparison with the known Zn 2+ complex. Solution NMR studies revealed concentration-dependent equilibria between aggregate forms of the new complexes in CD 3 CN. Trends in homonuclear and heteronuclear coupling provided additional insight regarding solution equilibria. ESI-MS from acetonitrile solutions supported differences in preferred aggregation states consistent with the solution NMR studies. Group 12 complexes incorporating chelating mixed aromatic amine-alkylthiolate ligands have rarely been investigated; metal ion dependent differences in solid, solution, and gas phase aggregation are reported.