Isophthalic acid ligands

In the unique 2D bilayered CP, [Mn2L2(H20)2] 3H2O (39) (L = E-5-(2-(pyridin-4-yl)vinyl)isophthalic acid ligand), each distorted octahedral Mn(II) is coordinated to a chelated carboxylate O atoms, two syn and anti bridging O atoms from two different ligands, one N atom from fourth ligand, and a water molecule. The ID chain... 

Polymerizations of S and MMA with in situ catalyst formation have also been carried out. Matyjaszewski et a ..355 reported on the use of FeBr2 together with various ligands such as PfQHs). , NiCiIIo. and 133 alone or in combination. The use of diearboxylic acid (iminodiacetic acid, isophthalic acid)356 and methanimine ligands " for MMA polymerization has also been reported. 

Turning to 2-D systems, Fig. 5(a) shows a very simple example in which nickel ions are connected via square planar coordination by imidazolate anions to form a very simple neutral layered structure.16 A more complex case based upon a combination of rare-earth ions with isophthalic acid is shown in Fig. 5(b) the thiophene derivatized version of the same ligand combined with Tb3+ yields a product with enhanced... 

A multidentate ligand incorporating aromatic carboxylate and pyridine donors separated by a flexible spacer (Lg = 5-[(Pyridin-4-ylmethyl)-amino]-isophthalic acid) forms the coordination polymer, Mn(Lg)(H20)](H20)1.5(DMF) [57] in aqueous DMF under solvothermal condition. Each Mn(II) ion shows a distorted octahedral geometry with one water molecule bound to the metal (Figure 53). 

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