Single and selective transport of Zr(IV) ions with trioctyl amine dissolved in kerosene using a multidropped liquid membrane technique.

It is very important to develop a process for selectively extracting Zr(IV) ions from the solution medium to produce zirconium metal used in industry and nuclear reactors. In this study, the parameters affecting the extraction of Zr(IV) ions were investigated using a multidropped liquid membrane (MDLM) system. Trioctyl amine (TOA) dissolved in kerosene was used as a carrier ligand in the extraction of Zr(IV) ions by the MDLM technique.

The successful treatment of refractory autoimmune hemolytic anemia with rituximab in a patient with chronic lymphocytic leukemia.

The most frequent autoimmune complication in chronic lymphocytic leukemia (CLL) is autoimmune hemolytic anemia (AIHA). There are various treatment modalities; however, there is not much experience with the use of the chimeric anti-CD20 monoclonal antibody rituximab in the autoimmune complications of CLL. Here, we present our patient with CLL and AIHA whose AIHA was unresponsive to various treatment modalities.

[N-(2-Hydroxyethyl)ethylenediamine-kappa3N,N',O]-cis-bis(isothiocyanato-kappaN)copper(II).

In the novel transition metal isothiocyanate complex of N-(2-hydroxyethyl)ethylenediamine (hydet-en) with copper, [Cu(NCS)2(C4H12N2O)], the Cu atom lies in a distorted square-pyramidal environment, coordinated by four N atoms in the basal plane and an apical O atom. The hydet-en ligand is N,N,O-tridentate, in contrast to the disposition in previously studied complexes, while the isothiocyanate ions act as N-atom donor ligands. The monomeric units are linked to one another by hydrogen bonds.

Diaquabis(pyridine-2-carboxamide-kappa2N1,O2)nickel(II) disaccharinate tetrahydrate.

In the crystal structure of the title compound, [Ni(C6H6N2O)2(H2O)2](C7H4NO3S)2.4H2O or [Ni(pia)2(H2O)2](sac)2.4H2O (pia is picolinamide or pyridine-2-carboxamide, and sac is the saccharinate anion), the Ni2+ cation, located on a centre of symmetry, is coordinated by two symmetry-related aqua ligands together with a pair of symmetry-related bidentate pia molecules and exhibits a distorted octahedral environment.