Crystals of Ni6L12 Ellipsoidal Tubes as Single-Crystal-to-Single-Crystal Adsorption Matrix: Penetrative Study of Self-Assembled Crystals vs Guest-Exchanged Crystals

Seonghyeon An; Dongwon Kim; Jihun Han; Haeri Lee; Ok-Sang Jung

doi:10.1021/acs.inorgchem.3c02964

Crystals of Ni₆L₁₂ Ellipsoidal Tubes as Single-Crystal-to-Single-Crystal Adsorption Matrix: Penetrative Study of Self-Assembled Crystals vs Guest-Exchanged Crystals

Inorg Chem. 2023 Oct 23;62(42):17057-17061. doi: 10.1021/acs.inorgchem.3c02964. Epub 2023 Oct 12.

Authors

Seonghyeon An¹, Dongwon Kim¹, Jihun Han¹, Haeri Lee², Ok-Sang Jung¹

Affiliations

¹ Department of Chemistry, Pusan National University, Busan 46241, Republic of Korea.
² Department of Chemistry, Hannam University, Daejun 34054, Republic of Korea.

PMID: 37823553
DOI: 10.1021/acs.inorgchem.3c02964

Abstract

Informative similarities/differences between self-assembled and single-crystal-to-single-crystal (SCSC) guest-exchanged crystals based on both the molecular structure and adsorption nature are observed. The self-assembly of Ni(ClO₄)₂ with a dicyclopentyldi(pyridine-3-yl)silane bidentate ligand (L) in a mixture of toluene and acetonitrile gives rise to purple crystals consisting of double-stranded ellipsoidal tubes, [Ni₆(ClO₄)₄(CH₃CN)₈L₁₂]·8ClO₄·4CH₃CN·5C₇H₈. The coordinated acetonitriles as well as the solvates are removed at 170 °C to transform the purple crystals into blue crystals of [Ni(ClO₄)₂L₂]_n that return to the original crystals in the mixture of toluene and acetonitrile. Further, the toluene and acetonitrile solvates of the original crystals are replaced by o-, m-, and p-xylene isomers within 5 min in a SCSC manner. In the present study, SCSC xylene-exchanged crystals were compared with crystals obtained from direct self-assembly in a mixture of each xylene isomer and acetonitrile.