The application of single-crystal-to-single-crystal transformation towards adjustable SMM properties

Abstract

Reversible single-crystal-to-single-crystal transformation (SCSC) was for the first time observed between 4f-based molecular magnets.

Metal-Organic Framework of Lanthanoid Dinuclear Clusters Undergoes Slow Magnetic Relaxation

“…In the Tb(III) dinuclear units of 2 , an oxygen atom from two of the bridging carboxylato ligands bridge both Tb(III) ions, giving them a 9-fold distorted monocapped square-antiprismatic coordination geometry (Figure S7). Completing the 9-fold C 4h symmetry structure, a μ 2 bridging O2 ligand acts as a cap, and the Dy-O2 bond length of 2.795(4) Å is much longer than others in the range of 2.316(3)–2.447(3) Å similar to the other Ln-Ln complexes, which have a 9-fold monocapped square-antiprismatic coordination geometries [18]. The structures of 1 and 2 are totally different from those of other reported Ln-MOFs containing H 3 TATB [16,19,20].…”

“…The crystal data for 1 and 2 are summarized in Table S1. We thought that these Ln-MOFs would exhibit SMM-like behaviour from the viewpoint of the structure because many Ln complexes exhibit SMM properties when they have square-antiprismatic [2,5,6,21,22] or monocapped square-antiprismatic [18,23,24] coordination geometries or when they have carboxylato-bridged dinuclear structures [18,25,26,27]. …”

Construction Of Two New 6‐connected Manganese(II) Metal Organic Frameworks via Isomeric Biphenyldicarboxylates Based on the Dinuclear Secondary Building Unit

“…To better understand the structure of complex 2, topological analysis was performed. If the dinuclear Mn II units and organic ligands are simplified as nodes and connectors, this structure can be described as a 6-connected pcu net with point symbol (4 12 . 6 3 ).…”

“…[10][11][12] Although rapid progress in CPs has been made, it is also a great challenge to rationally prepare and control the structures and composition of target products in crystal engineering. It has been recognized that the construction of CPs is influenced by both structural and experimental factors, such as organic ligands, pH values, temperature, solvents, and so on.…”

Three d10 metal coordination compounds based on pyrazole-3-carboxylic acid showing mixed-ligand characteristic: Syntheses, crystal structures, and photoluminescent properties

“…The ever-increasing interest in metal-organic coordination compounds (MOCCs) arises not only from their intriguing structures [1][2][3][4], but also as a result of their promising applications in catalysts [5,6], storage [7][8][9][10], separation [11,12], molecular magnetism [13][14][15], sensor [16,17], ion exchange (including dye exchange) [18] and optical device [19,20]. Up to now, many MOCCs with intriguing topologies and useful properties have been isolated with well-designed synthesis strategies [21][22][23][24].…”