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Updated: Jul 31, 2025
Preparation of SNS CobaltII Pincer Model Complexes of Liver Alcohol Dehydrogenase
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Secondary hierarchical complexity in double-stranded cluster helicates covered by NNNNN type pincer ligands
Wang-Chuan Xiao1, Qing-Bin Nie2, Geng-Geng Luo3,4
1School of Resources and Chemical Engineering, Sanming University, Sanming, 365004, P. R. China.
Abstract:
We designed and synthesized a new tripyridine dipyrrolide pincer ligand, which could be doubly deprotonated to provide five-nitrogen-donor sites and then utilized to prepare a subnanometric chiral silver cluster. The cluster belongs to an S4 point group and shows a double-stranded helicate. DFT calculations were performed to analyze the electronic structure of the cluster. Interestingly, through hierarchical intercluster interactions, the cluster helicates evolve into complex secondary structures including a right-handed helix and a folded sheet, both of which are reminiscent of secondary structures of proteins, i.e., an α-helix and an antiparallel β-sheet.
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