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Ring rotation of ferrocene in interlocked molecules in single crystals.

ABSTRACT: This work describes unique molecular motions of ferrocene-containing interlocked molecules observed by single-crystal X-ray crystallography. The rotational flexibility of ferrocene is achieved using combinations of ferrocene-tethered ammonium and 30-membered ring dibenzo-crown ether. By contrast, ferrocene was locked in the complex with an 18-membered ring dibenzo-crown ether and CH₂Cl₂. When the complex was heated at 358 K, CH₂Cl₂ was removed from the complex, which led to drastic structural changes, including a semieclipsed-to-disordered transition of ferrocene and flipping of the dibenzo-crown ether.

SUBMITTER: Wang CH

PROVIDER: S-EPMC8179491 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature

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Ring rotation of ferrocene in interlocked molecules in single crystals.

Wang Chi-Hsien CH Chen Kai-Jen KJ Wu Tsung-Huan TH Chang Hung-Kai HK Tsuchido Yoshitaka Y Sei Yoshihisa Y Chen Pei-Lin PL Horie Masaki M

Chemical science 20210122 11

This work describes unique molecular motions of ferrocene-containing interlocked molecules observed by single-crystal X-ray crystallography. The rotational flexibility of ferrocene is achieved using combinations of ferrocene-tethered ammonium and 30-membered ring dibenzo-crown ether. By contrast, ferrocene was locked in the complex with an 18-membered ring dibenzo-crown ether and CH2Cl2. When the complex was heated at 358 K, CH2Cl2 was removed from the ...[more]

PMID: 34163655

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