Unsymmetric dinuclear Ir(I) complexes, [IrCl(L)(-dpmppp)] (L = XylNC (), BuNC (), CO ()), were synthesized using -PhPCHP(Ph)(CH)P(Ph)CHPPh (-dpmppp), which supports - (M) and (M) metal sites, and exhibited high reactivity for O, H, and HCl. The IrRh heterodinuclear complexes, [MMCl(L)(-dpmppp)] () (MM = IrRh, RhIr; L = XylNC, CO ( = , )), were also synthesized and used together with the Rh complexes () to elucidate the role of each metal site. For the reactions of O, and showed higher reactivity than those of and , giving η-peroxide complexes [{MCl}{M(η-O)(XylNC)}(-dpmppp)] (, ), from which O would not dissociate.
View Article and Find Full Text PDFFragility fractures associated with glucocorticoid-induced osteoporosis (GIO) can markedly impair quality of life. However, only 20% of patients are treated in compliance with the relevant management guidelines, and bone mineral density analysis with dual-energy X-ray absorptiometry (DXA) is only rarely performed. We report the intervention methods suggested by pharmacists and describe their efficacy.
View Article and Find Full Text PDFThe dynamical functions of molecular metal chains, that could be derived from unique physical and chemical properties coupled with self-assembly of metal chain components, have largely been unexplored, and this review paper focuses on the dynamic behaviours of Pd chains supported by linear tetraphosphines, - and -PhPCHP(Ph)CHP(Ph)CHPPh recently reported, and the current development on fine-tuning of metal chains by introducing heterometal atoms, heterometallic molecular metal chains, that are considered as promising dynamical components in the next generation.
View Article and Find Full Text PDFThe permanent risk of splenectomized patients to infectious complications, the most severe being overwhelming post splenectomy infection (OPSI), determined the search for solutions in order to diminish these evolutionary possibilities. Therefore, intraomental developsplenic autotransplantation seems to be a viable option which, according to some authors, would have beneficial effects by restoring (at least partially) the functions of the spleen. The article presents the current experience related to this procedure (principles of surgical technique, implant location, complications, post-procedural evaluation) in an attempt to bring it back to the attention of trauma / general surgery surgeons.
View Article and Find Full Text PDFTwo linear tetradentate phosphine ligands, -PhPCHP(Ph)CHCHP(Ph)CHPPh ( = CH (-dpmppp), NBn (-dpmppmNBn; Bn = benzyl)) were utilized to synthesize unsymmetrical dinuclear Rh complexes, [RhCl(-dpmppp)(L)] (L = XylNC (), CO ()) and [RhCl(-dpmppmNBn)(L)] (L = XylNC (), CO ()), where electron-deficient Rh → Rh centers with 30 valence electrons are supported by a tetraphosphine in an unusual /- coordination mode. The Rh dimers of - were treated with HCl under air to afford the Rh → Rh dimers with 32 e, [RhCl(-dpmppp)(L)] (L = XylNC (), CO ()) and [RhCl(-dpmppmNBn)(L)] (L = XylNC (), CO ()), via intermediate hydride complexes, [{RhCl(μ-H)RhCl(L)}(-dpmppp)] (L = XylNC (), CO ()) and [{RhCl(μ-H)RhCl(L)}(-dpmppmNBn)] (L = XylNC (), CO ()), and [{Rh(H)Cl(μ-Cl)Rh(L)}-dpmppp)] (L = XylNC (), CO ()) and [{Rh(H)Cl(μ-Cl)Rh(L)}-dpmppmNBn)] (L = XylNC (), CO ()). The hydride intermediates and were monitored under nitrogen by H{P} and P{H} NMR techniques to reveal two reaction pathways depending on the terminal auxiliary ligand L.
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