Coordination-Driven Self-Assembly of Heterotrimetallic Barrel and Bimetallic Cages Using a Cobalt Sandwich-Based Tetratopic Donor
| Autor: | Ki-Whan Chi, Eun-Hee Kim, Dongwook Kim, Jatinder Singh, Dong Hwan Kim, Nem Singh, Myoung Soo Lah |
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| Rok vydání: | 2018 |
| Předmět: |
010405 organic chemistry
chemistry.chemical_element 010402 general chemistry 01 natural sciences Acceptor Oxalate 0104 chemical sciences Inorganic Chemistry chemistry.chemical_compound Crystallography Ferrocene chemistry Cyclopentadienyl complex Diimide Moiety Physical and Theoretical Chemistry Bimetallic strip Cobalt |
| Zdroj: | Inorganic Chemistry. 57:3521-3528 |
| ISSN: | 1520-510X 0020-1669 |
| DOI: | 10.1021/acs.inorgchem.7b02653 |
| Popis: | Three-dimensional molecular architectures self-assembled with tripodal and tetratopic donors are valuable because of their encapsulation properties. Here, we present Co(I)–Fe(II)–Pd(II) heterotrimetallic trifacial barrel 1, which was self-assembled using a newly synthesized tetratopic donor [CpCo(CbR4)] [L; Cp = cyclopentadienyl, Cb = cyclobudiene, and R = 4-(4-pyridylphenyl)] and a 90° acceptor [cis-(dppf)Pd(OTf)2] (A1; dppf = (diphenylphosphino)ferrocene and OTf = CF3SO3–). The heterotrimetallic barrel 1 exhibited selective 1:1 interaction with a N,N′-dimethyl-1,4,5,8-naphthalenetetracarboxylic diimide guest, as revealed by 1H NMR analysis. The self-assembly of donor L with two other Ru(II)-based 180° acceptors [(p-cymene)2Ru2(OO∩OO)(OTf)2] [OO∩OO = 6,11-dioxido-5,12-naphthacenedione (A2) and oxalate (A3)] resulted in tetragonal-prismatic cages. Self-assembly using the longer acceptor A2 provided rare isomers of a tetragonal-prismatic cage by varying the orientation of the cyclopentadienyl moiety out–ou... |
| Databáze: | OpenAIRE |
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