Showing papers by "Ji Yeon Ryu published in 2015"
TL;DR: The self-assembly of C(s)-symmetric tetrapyridyl cobalt-metalloligand 2 with three half-sandwich diruthenium acceptors led to the formation of A4D2 metallacages 6-8, as shown by ESI mass spectrometry, NMR spectroscopy, and X-ray crystallography.
Abstract: The self-assembly of Cs-symmetric tetrapyridyl cobalt–metalloligand 2 with three half-sandwich diruthenium acceptors, 3–5, led to the formation of A4D2 (A = acceptor, D = donor) metallacages 6–8, as shown by ESI mass spectrometry, NMR spectroscopy, and X-ray crystallography. The solid-state structures of 6–8 revealed that the length of the acceptor unit greatly influences the molecular packing of these metallacages. Hence, in the solid state, 6–8 can be considered to have waterwheel-shaped, tweezer-shaped, and butterfly-like architectures, respectively.
24 citations
TL;DR: Stoichiometric control of Ru, Ag, and tetrazolyl ligands resulted in the formation of different heterometallic Ru-Ag supramolecular architectures.
Abstract: Stoichiometric control of Ru, Ag, and tetrazolyl ligands resulted in the formation of different heterometallic Ru–Ag supramolecular architectures. Although the reaction of Ru and 5-(2-hydroxyphenyl)-1H-tetrazolyl (LH2) in a molar ratio of 2:1 or 6:4 resulted in the formation of dimeric or hexameric Ru complexes, Ag metal ions caused the Ru complexes to form three-dimensional cylindrical Ru6Ag6L6 and double-cone-shaped Ru6Ag8L6 complexes by occupying vacant coordination sites.
19 citations
TL;DR: The title compound, C5H11N5O, crystallized with two independent molecules in the asymmetric unit, with the hydroxy H atoms pointing in opposite directions.
Abstract: The title compound, C5H11N5O, crystallized with two independent molecules in the asymmetric unit. The two molecules differ in the orientation of the 2-methylpropan-2-ol unit, with the hydroxy H atoms pointing in opposite directions. In the crystal, molecules are linked via O—H⋯O and N—H⋯O hydrogen bonds, forming ribbons propagating along [10-1]. The ribbons are linked via N—H⋯N hydrogen bonds, forming a three-dimensional structure.
2 citations