Mn(ii) metal–organic frameworks based on Mn3 clusters: from 2D layer to 3D framework by the “pillaring” approach

Synthesis, Structure, Photoluminescence, and Theoretical ­Calculation of an rtl‐type Zinc(II) Compound with Linear Trinuclear [Zn3(COO)4(μ2‐H2O)2] Subunits

“…The carboxylate groups of each BPT 3-ligand show two kinds of coordination modes: two are in bridging mode and the third in monodentate mode. In the framework of 1, each BPT 3-ligand connects three different trinuclear [Zn 3 (COO) 4 2 ] subunits can be viewed as 3-, 6-connected nodes, respectively, the complicate framework of 1 can be simplified into a (3,6)-connected rtl topological network with the Schläfli symbol of {4.6 2 } 2 {4 2 .6 10 .8 3 } (Figure 2c). …”

“…In the past few years, several synthetic strategies (such as mixed-ligand self-assembly strategy, pillaring strategy, post-synthetic modification, building block method and so on) have been established. [4][5][6][7] Among these strategies, the building block method is one of the most effective methods to synthesize new materials with predictable structures. Studies have proven that the versatile coordination modes and strong coordination abilities of polycarboxylate ligands make them easily link metal ions into variety of building subunits (such as di-, tri-, tetra-, hexa-nuclear clusters, rodshaped chains and so on).…”

Organic Carboxylate Ligands Tuned Structural Variations of Three New Cd(II) Coordination Polymers with Guanazole as Co-ligand

“…It is well known that the molecular frameworks of coordination polymers can be carefully manipulated by deliberate changing some external factors, such as solvent, pH value, reaction temperature, the ratio of reactants, auxiliary ligands, uncoordinated counter ions, and templates [6][7][8][9]. In addition to the influence of external factors, the synthetic strategy also plays a crucial role in the design and construction of desirable frameworks [5,10,11]. Therefore, it is necessary not only for us to understand the relationship between the structure and external stimuli but also for us to select an appropriate synthetic strategy.…”

“…Recently, much interest has been put on the design and syntheses of coordination polymers owing to their intriguing topological architectures as well as their huge potential applications in the fields of luminescence, molecular recognition, catalysis, magnetism and gas storage [1][2][3][4][5]. It is well known that the molecular frameworks of coordination polymers can be carefully manipulated by deliberate changing some external factors, such as solvent, pH value, reaction temperature, the ratio of reactants, auxiliary ligands, uncoordinated counter ions, and templates [6][7][8][9].…”

Construction of three new metal-organic frameworks with distinct SBUs: trinuclear {Cd3(COO)6} clusters, inorganic -Cd-O-Cd- chains, and heterometallic trinuclear {Cd2Ba(COO)4} clusters

“…in order to obtain the isolated rigid clusters or rod-shaped chains, organic linkers with carboxylate functionalities are essential because the carboxylate groups can chelate the central metal ions and locate them into rigid and directional metal-carboxylate clusters or rod-shaped metal-carboxylate chains. For example, aromatic multicarboxylate ligands (such as terephthalic acid, 1,3,5-benzenetricarboxylic acid, 1,2,4,5-benzenetetracarboxylic acid) with excellent coordination abilities and abundant coordination modes have been used for construction of MOFs through SBUs strategy [18][19][20]. Compared to the above-mentioned multicarboxylate ligands, H 3 OABDC not only has two rigid carboxylate groups, but also has one flexible carboxylate group with appropriate length (-OCH 2 COOH), moreover, the "O" in -OCH 2 − also can participate in coordination under suitable conditions, consequently it may have more coordination modes in the self-assembly process.…”