Treatment of [Cu2(dcpm)2]Y2 (dcpm = bis(dicyclohexylphosphino)methane, Y = ClO4-, BF4-, PF6-, CF3SO3-) with refluxing MeOH in the presence of KOH afforded hydride complexes [Cu3(dcpm)3(mu3-H)]Y2 (1) in about 85% yield. Refluxing [Cu2(dcpm)2](PF6)2 with MeOH in the presence of NH3.H2O and air gave a carboxylate complex [Cu2(dcpm)2(O2CCH2OH)]PF6 (2) in 40% yield. All of the complexes 1 and 2 have been characterized by X-ray crystallography. The Cu3 cores in 1 are almost perfectly shielded by the dcpm ligands. Intense photoluminescence was observed for 1 both in the solid state and in solution.
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http://dx.doi.org/10.1021/ja042335c | DOI Listing |
Inorg Chem
January 2025
Grupo NanoToxGen, Centro Interdisciplinar de Química y Biología (CICA), Departamento de Química, Facultade de Ciencias, Universidade da Coruña, A Coruna 15071, Spain.
Symmetrical bis(hydrazone)-based ligands, Hdar(bhz) (), Hdar(fah) (), Hdar(nah) (), and Hdar(inh) () obtained from 4,6-diacetylresorcinol (Hdar) and different hydrazides [benzoylhydrazide (Hbhz), isonicotinoylhydrazide (Hinh), nicotinoylhydrazide (Hnah), and 2-furoylhydrazide (Hfah)], were used to prepare potassium salts of binuclear -[VO] complexes, {K(HO)}[(VO)dar(bhz)] (), {K(HO)}[(VO)dar(fah)] (), {K(HO)}[(VO)dar(nah)] (), and {K(HO)}[(VO)dar(inh)] (), and binuclear [VO] complexes, [{VO(MeOH)}dar(bhz)] (), [{VO(MeOH)}dar(fah)] (), [{VO(MeOH)}dar(nah)] (), and [{VO(MeOH)}dar(inh)] (). In the presence of warm MeOH/DMSO (4:1), changed to {K(HO)}[(VO)Hdar(nah)]DMSO (·DMSO). Single crystal XRD studies of and confirm a binuclear structure along with a distorted square pyramidal geometry of each vanadium center where bis{ONO(2-)} ligands coordinate through phenolate-O, azomethine-N, and enolate-O atoms of each unit.
View Article and Find Full Text PDFInorg Chem
January 2025
Department of Chemistry, University College of Science, University of Calcutta, 92 A.P.C. Road, Kolkata 700009, India.
The well-known inhibitory strength of 3d metal Schiff base complexes against urease enzymes has long been acknowledged, but their untapped potential to act as ureolytic mimics of active metallobiosites remained unexplored. To break the new ground, we present pyrrolidine-based mononuclear Ni(II)-azide complex {[NiL(HL)(N)]·1.5(HO)} using the N,N,O donor ligand, namely ()-4-bromo-2-(((2-(pyrrolidin-1-yl)ethyl)imino)methyl)phenol.
View Article and Find Full Text PDFJ Pharm Biomed Anal
March 2025
Service of Clinical Pharmacology, Department of Medicine, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland.
Levosimendan is a positive inotrope and vasodilator used in patients with acute and chronic decompensated heart failure. It is metabolized into OR-1855 (inactive metabolite), which is further acetylated into OR-1896 (active metabolite having a prolonged half-life, hence a sustained effect). Levosimendan represents a valuable alternative to traditional inotropes with broad clinical applications in critically ill patients with cardiogenic shock, advanced heart failure and post-cardiac surgery.
View Article and Find Full Text PDFJ Chromatogr A
January 2025
Université de Lyon, Institut des Sciences Analytiques, UMR 5280 CNRS, 5 rue de la Doua, Villeurbanne 69100, France. Electronic address:
The online combination of reversed-phase liquid chromatography and supercritical fluid chromatography (online RPLC × SFC) is an attractive technique for the characterization of complex samples containing neutral compounds as the two techniques are highly complementary, especially with a polar stationary phase in supercritical fluid chromatography (SFC). However, the setup is challenging due to the presence of hydro-organic solvents in RPLC, which become injection solvent in SFC. In this study, numerous key experimental parameters were identified and found to have a major effect on peak shape under RPLC × SFC conditions.
View Article and Find Full Text PDFMolecules
October 2024
Laboratory of Pharmaceutical Biology and Biotechnology, Department and Division of Practical Cosmetology and Skin Diseases Prophylaxis, Poznan University of Medical Sciences, Collegium Pharmaceuticum, 3 Rokietnicka St., 60-806 Poznan, Poland.
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