Research paperSynthesis, characterization, and reactivity of the first uranium metallocene 1,2-bis(diphenylphosphino)acetylene complexes

Add time:08/28/2019    Source:sciencedirect.com

Two new uranium metallacyclopropenes, (C5Me4R)2U(η2-Ph2PCCPPh2) (R = Me, Et) were prepared by reducing the corresponding (C5Me4R)2UCl2 complexes with KC8 in the presence of 1,2-bis(diphenylphosphino)acetylene (Ph2PCCPPh2). Both compounds were fully characterized by a combination of elemental analysis and multinuclear NMR, UV–visible–NIR, and IR spectroscopies. Differences in the electronic spectra of these novel compounds and the known (C5Me5)2U(η2-Me3SiCCSiMe3) are discussed. Also presented is the solid-state structure of (C5Me4Et)2U(η2-Ph2PCCPPh2), which reveals significant distortions of the coordinated 1,2-bis(diphenylphosphino)acetylene (Ph2PCCPPh2) ligand.

We also recommend Trading Suppliers and Manufacturers of (-)-PHENYL-4,6-O-(R)-BENZYLIDENE-2,3-O-BIS-(DIPHENYLPHOSPHINO)-BETA-D-GLUCOPYRANOSIDE (cas 111137-94-1). Pls Click Website Link as below: cas 111137-94-1 suppliers

Prev:Research paper{μ-Bis(diphenylphosphino)methane}(1-alkyl-2-(arylazo)imidazole) copper(I) perchlorate: Synthesis, structure and photochromism
Next:Research paperPd(II) and Pt(II) saccharinate complexes of bis(diphenylphosphino)propane/butane: Synthesis, structure, antiproliferative activity and mechanism of action)