title: Crystal-to-crystal transformations of a series of isostructural metal-organic frameworks with different sizes of ligated solvent molecules.
abstract: Isostructural 3D metal-organic frameworks (MOFs) [Zn2(BTC)(NO3)S3] [where BTC = 1,3,5-benzenetricarboxylate; S = EtOH (1), DMF (2), DMA (3), or DEF (4)] of a 3-connected srs net topology have been prepared in the presence of serine as a template. The MOFs show different framework stabilities depending on the sizes of the ligated solvent molecules and undergo a crystal-to-crystal transformation at ambient conditions into a 1D chain structure either directly or via different types of intermediates depending on the ligated solvent molecules and the sample handling conditions. A single crystal of the MOF with the ligated DMF molecules, [Zn2(BTC)(NO3)(DMF)3] (2), is stable in Mg(II)- and Co(II)-DMF solutions; however, it transforms into a single particle-like microcrystalline aggregate of Cu-HKUST-1 in a Cu(II)-DMF solution.
authors.affiliation: Interdisciplinary School of Green Energy, Ulsan National Institute of Science & Technology, Ulsan 689-798, Korea.
authors.forename: Minhak
authors.initials: M
authors.lastname: Oh
authors.forename: Lalit
authors.initials: L
authors.lastname: Rajput
authors.forename: Dongwook
authors.initials: D
authors.lastname: Kim
authors.forename: Dohyun
authors.initials: D
authors.lastname: Moon
authors.forename: Myoung Soo
authors.initials: MS
authors.lastname: Lah