Novel Lanthanide(III) Coordination Polymers with 1,4-Bis(phenyl-sulfinyl)butane Forming Unique Lamellar Square Array:  Syntheses, Crystal Structures, and Properties

Abstract

The syntheses, characterization, structures, and properties of a series of LnIII coordination polymers with a flexible bis(sulfinyl) ligand, 1,4-bis(phenylsulfinyl)butane (L), are reported. Unique noninterpenetrated two-dimensional (4,4) nets are formed in these complexes. The coordination number of the LnIII ions across the whole LnIII series remains unchanged, and all the complexes of this series are isomorphous and isostructural. The perchlorate anions may set as a template in the formation of these unique square arrays, and the counteranions may be a key factor in controlling the structures of such complexes.

Structures, Photoluminescence, Up-Conversion, and Magnetism of 2D and 3D Rare-Earth Coordination Polymers with Multicarboxylate Linkages

“…It is seen that each Eu III center is coordinated by nine O atoms from six NDC anions (O1, O2, O5, O4A, O3A, O3B, and O6A) and two DMF molecules (O7 and O8). The Eu−O(carboxylate) bond distances ranging from 2.371 to 2.654 Å and the Eu−O(DMF) bond distances from 2.447 to 2.460 Å are similar to previously reported Eu−O lengths . It is well-known that the two possible ground-state geometries for a nine-coordination polyhedron are the symmetrical tricapped trigonal prism with D 3 h symmetry and the monocapped square antiprism with C 4 v symmetry .…”

Enhancing Enantioselectivity and Productivity of P450-Catalyzed Asymmetric Sulfoxidation with an Aqueous/Ionic Liquid Biphasic System

“…Several sulfoxidation reactions and chiral sulfoxides were chosen as the target reactions and products, respectively (Scheme ). ( R )-Phenyl methyl sulfoxide 2 is an intermediate for the synthesis of antiobesity drug Tetrahydrolipstatin; ( R )-ethyl phenyl sulfoxide 6 is useful for preparing luminescent materials; − ( R )-methyl p -tolyl sulfoxide 8 is used for synthesizing glucocorticoid receptor ligands and the drugs such as Compactin, Mevinolin and Provastatin; , and ( R )-methyl p -methoxyphenyl sulfoxide 10 is an intermediate to produce antihypertensive agent for lowing blood pressure . Cyclohexanone monooxygenase (CHMO) was reported to catalyze the sulfoxidation of thioanisole 1 to give ( R )- 2 in 99% ee by using an in vitro oxidation system with two coupled enzymes; however, no product concentration was mentioned, and the number of NADPH recycling was low.…”

Synthesis, Crystal Structure, and Porosity Estimation of Hydrated Erbium Terephthalate Coordination Polymers

“…Actually, the design of nanoporous open frameworks is a factor of this revival because these compounds are anticipated to exhibit good efficiency as far as size selective separation, catalysis, and gas storage are concerned. ,− As compared to the reports of d-block transition metal coordination polymers, lanthanide polymeric complexes are less common because, unlike the d orbitals of the transition elements, the f orbitals of the lanthanide ions do not contribute significantly to complex formation. Actually, bonding between lanthanide ions and coordinating ligands depends essentially on the electronegativity of the bonding atoms of the ligands, and the lanthanide ions show very little structuring effect. , However, there has been an upsurge in the synthesis of lanthanide-based polymeric complexes becaue of their fascinating coordination geometry and their unique physical properties. ,− Benzene-polycarboxylate ligands, especially, have drawn much attention 33,35-45 because these ligands are chemically and thermally reasonably stable, present a structuring effect thanks to π-stacking, and their carboxylato functional groups allow one to expect a structural diversity resulting from their numerous possible coordination modes (see Scheme ).

1 Coordination Modes Presented by the Carboxylato Groups

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