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Assembly of Dy60 and Dy30 cage-shaped nanoclusters.

ABSTRACT: Rapid kinetics, complex and diverse reaction intermediates, and difficult screening make the study of assembly mechanisms of high-nuclearity lanthanide clusters challenging. Here, we synthesize a double-cage dysprosium cluster [Dy60(H2L1)24(OAc)71(O)5(OH)3(H2O)27]·6H2O·6CH3OH·7CH3CN (Dy60) by using a multidentate chelate-coordinated diacylhydrazone ligand. Two Dy30 cages are included in the Dy60 structure, which are connected via an OAc- moiety. The core of Dy60 is composed of 8 triangular Dy3 and 12-fold linear Dy3 units. We further change the alkali added in the reaction system and successfully obtain a single cage-shaped cluster [Dy30(H2L1)12(OAc)36(OH)4(H2O)12]·2OH·10H2O·12CH3OH·13CH3CN (Dy30) with a perfect spherical cavity, which could be considered an intermediate in Dy60 formation. Time-dependent, high-resolution electrospray ionization mass spectrometry (HRESI-MS) is used to track the formation of Dy60. A possible self-assembly mechanism is proposed. We track the formation of Dy30 and the six intermediate fragments are screened.

SUBMITTER: Luo ZR 

PROVIDER: S-EPMC9814749 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature

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Assembly of Dy<sub>60</sub> and Dy<sub>30</sub> cage-shaped nanoclusters.

Luo Zhi-Rong ZR   Wang Hai-Ling HL   Zhu Zhong-Hong ZH   Liu Tong T   Ma Xiong-Feng XF   Wang Hui-Feng HF   Zou Hua-Hong HH   Liang Fu-Pei FP  

Communications chemistry 20200306 1

Rapid kinetics, complex and diverse reaction intermediates, and difficult screening make the study of assembly mechanisms of high-nuclearity lanthanide clusters challenging. Here, we synthesize a double-cage dysprosium cluster [Dy<sub>60</sub>(H<sub>2</sub>L<sup>1</sup>)<sub>24</sub>(OAc)<sub>71</sub>(O)<sub>5</sub>(OH)<sub>3</sub>(H<sub>2</sub>O)<sub>27</sub>]·6H<sub>2</sub>O·6CH<sub>3</sub>OH·7CH<sub>3</sub>CN (Dy<sub>60</sub>) by using a multidentate chelate-coordinated diacylhydrazone ligand  ...[more]

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