Apr 5, 2004 · The reactions of CoCl 2 salt and piperazine (L) in the presence of different organic acid mediums afford a series of cobalt (II) complexes, the solid structures (determined by X-ray diffraction techniques) of which are controlled by the nature of the specific acid.

Jun 26, 2024 · The study investigates the effect of pH, piperazine concentration and membrane properties on cobalt extraction efficiency using D 2 EHPA and ceramic supported polymer membrane. The optimum pH...

Jan 1, 2024 · A melamine resin-cobalt@piperazine pyrophosphate microcapsule was prepared. Flame retardancy and mechanical performance of RPUF was improved with MF-Co@PAPP. Smoke suppression achieved by the synergic effect of the components of MF-Co@PAPP.

Nov 15, 2021 · Synthesis, structural, spectroscopic and electrochemical characterization of two new cobalt(II) piperazine meso-arylporphyrins (Complexes 1 and 2). These two compounds were used as efficient absorbents.

As a basic amine, piperazine forms a variety of coordination complexes, usually binding to metals as a unidentate ligand (bidentate binding would require the boat conformation). One example is the polymer [CoCl 2 (piperazine)] n, which features tetrahedral cobalt centers linked by bridging piperazine ligands. [12] Piperazine is easily N-alkylated.

Zn xPDC (x represents the molar ratio of cobalt salts to piperazine, normalized 1 for piperazine segments) MOF prepared by different ratios of metal salts and piperazine ligands. Characterization

The reactions of CoCl 2 salt and piperazine ( L) in the presence of different organic acid mediums afford a series of cobalt (II) complexes, the solid structures (determined by X-ray diffraction techniques) of which are controlled by the nature of the specific acid.

Abstract: This paper reports two ligands based on piperazine rings and their cobalt, copper, and zinc complexes, along with synthesis and characterization. Ligands were synthesized by direct condensation of chloroethanol and the ring-opening reaction of styrene oxide with piperazine and characterized by

Sep 22, 2021 · Two new cobaltous-porphyrin complexes, namely (μ-piperazine)-bis [ (meso-tetra (para-methoxyphenyl)porphyrinato)]cobalt (II) and (piperazine) [meso-tetra (para-chlorophenyl)porphyrin]cobalt...

Mar 15, 2019 · In this study, two novel cobalt N-coordinated compounds were obtained from 1-(2-pyrimidyl)piperazine as the organic molecule, cobalt as the metal and two different thiocyanate sources. The first compound was obtained from the KSCN salt.