[Ru(bpy)(3)](2+) (bpy = 2,2'-bipyridine) ions were entrapped into the cavities of two-dimensional anionic sheet-like coordination polymeric networks of [M(dca)(3)](-) (dca = dicyanamide; M = Mn(II) and Fe(II)). The prepared compounds, {[Ru(bpy)(3)][Mn(dca)(3)](2)}(n) (1) and {[Ru(bpy)(3)][Fe(dca)(3)](2)}(n) (2), were structurally characterized by X-ray single crystal analysis. The spectroscopic...

Mn-apo Mn-apo+ ferritin 8μM Hepatocytes Mn-loaded apoferritin: a high sensitivity, biologically compatible MRI agent. S. Geninatti-Crich, F. Kalman, I. Szabo, S. Lanzardo, J. Cutrin, L. Conti, and S. Aime University of Torino, Torino, Italy Introduction: An innovative approach to the design of MRI Contrast Agents has been pursued through the entrapment of Mn(II) aqua ions inside the inner cavit...

Manganese(III) has been stabilized in weakly acidic solution by pyrophosphate and the complex formed was elucidated spectrophotometrically. Stoichiometry of manganese(III) oxidation of ampicillin in pyrophosphate medium was established in the pH range 2.0–3.0 by iodometric and spectrophotometric methods. The oxidation follows frst order kinetics in [Mn(III)]. The effect of varying [Mn(III)], [A...

The asymmetric unit of the title compound, [MnBr(2)(C(8)H(6)N(4))(2)]·CH(3)NO(2), contains one half of a neutral Mn(II) complex and one half of a nitro-methane solvent mol-ecule, the complete mol-ecules being generated by the application of twofold symmetry. In the complex, the Mn(II) ion has a distorted cis-Br(2)N(4) octa-hedral coordination geometry defined by four N atoms of the two chelatin...

It is a challenge to synthesize a porous tubular coordination polymer with magnetic properties. Utilizing [Fe(II)(bipy)(CN)4](2-) (bipy = 2,2'-bipyridine) as the building block to react with Mn(2+), we successfully synthesized a cyano-bridged tubular coordination polymer with dominant ferromagnetic interactions. The inner surface of the heterometallic tube is hydrophilic, whereas the outer surf...

Syntheses, crystal structures, magnetic properties and catechol oxidation behavior are presented for [Mn3] and [Mn4] aggregates, [MnMn(II)(O2CMe)4(dmp)2(H2O)2]·2H2O (1·2H2O), [MnMn(II)(O2CCH2Cl)4(dmp)2(H2O)2]·H2O·MeOH (2·H2O·MeOH), [Mn(μ3-O)(dmp)4(μ-DMSO)(N3)(DMSO)(H2O)]ClO4·DMSO (3·ClO4·DMSO), and [Mn(μ3-O)(dmp)4(μ-DMSO)(ClO4)(DMSO)(H2O)]ClO4·DMSO (4·ClO4·DMSO), developed with single type liga...

Transients of Mn internal 3d5 luminescence in ZnS/Mn nanowires are strongly non-exponential. This non-exponential decay arises from an excitation transfer from the Mn ions to so-called killer centers, i.e., non-radiative defects in the nanostructures and is strongly related to the interplay of the characteristic length scales of the sample such as the spatial extensions, the distance between ki...

The title compound, {[Mn(HCOO)(2)(C(12)H(8)N(2))(H(2)O)]·H(2)O}(n), consists of polymeric chains of the complex [Mn(HCOO)(2)(phen)(H(2)O)](∞) (phen is 1,10-phenanthroline) with solvent water mol-ecules. The chains contain six-coordinate Mn(II) ions bridged by formate anions. They are further extended into a three-dimensional network via O-H⋯O hydrogen-bonding inter-actions and inter-chain π-π s...

A novel class of derivatized acetylacetonate (acac) linkers for robust functionalization of TiO2 nanoparticles (NPs) under aqueous and oxidative conditions is reported. The resulting surface adsorbate anchors are particularly relevant to engineering photocatalytic and photovoltaic devices since they can be applied to attach a broad range of photosensitizers and photocatalytic complexes and are ...

Surface water contains a large number of pollutants, particularly human pathogens, organic toxicants and heavy metals. Due to the toxic nature of heavy metals towards marine organisms, its removal from the environment has been a growing issue. The biosorption of heavy metal ions from surface water using fish scales has emerged as an environmentally friendly technique. This study assessed the de...