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Accessing Valuable Ligand Supports for Transition Metals: A Modified, Intermediate Scale Preparation of 1,2,3,4,5-Pentamethylcyclopentadiene
Published on: March 20, 2017
Side-Chain-Type Metallo-Macrocycles: η5-Cyclopentadienylcobalt-η4-cyclobutadiene-Incorporated Conjugated Macrocycle
Lingyun Zhu1, Gang Xu1, Jianwei Liang2
1Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University), College of Chemistry, Fuzhou University, Fuzhou 350108, China.
Abstract:
This work reports the synthesis of a 1,3-linked tetracyclopentadienylcobalt-cyclobutadiene macrocycle ([CpCoCb]4) via Pt-templated cyclization. Structural characterization by SCXRD confirms a Ci-symmetric nanohoop (1.5 nm diameter). Unique CH-π interactions drive the 1D channel packing. Electrochemical studies reveal multiredox activity. This work establishes a new paradigm for strained organometallic architectures with potential applications in multistate molecular electronics and host-guest systems.
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