![Sample our Physical Sciences journals, sign in here to start your FREE access for 14 days]({"type":"image" , "src" : "/sda/110819/TOC-Subject-Sample-2021-Physical-Sciences.jpg"})
Abstract
The water-soluble bisphosphines, 1,2-bis(bis(hydroxymethyl)phosphino)benzene (“HMPB”) (1) and 1,2-bis(bis(hydroxymethyl)phosphino)ethane (“HMPE”) (2) were synthesized in near quantitative yields by the catalytic hydroformylation of H2PC6H4PH2 and H2PCH2CH2PH2 in the presence of formaldehyde in aqueous media.1.2 The reactions of these chelating bisphosphines 1 and 2 with Pt(COD)Cl2 and Pd(PhCN)2Cl2 produced water-soluble Pt(II) and Pd(II) complexes M[(HOH2C)2PC6H4P(CH2OH)2]2Cl2 (M = Pt, 3; Pd, 4) and M[(HOH2C)2PCH2CH2P(CH2OH)2]2Cl2 (M = Pt, 5; Pd, 6) respectively. The reactions of 1 and 2 with Re(O2)I(Ph3)2 and Re(O)2(NHC5H5)4]Cl to produce new water-soluble Re(V) complexes are also described. All the new compounds were characterized by 1H and 31P NMR spectroscopy. X-ray structures of representative Pd(II) and Re(V) complexes as shown below confirmed the chemical constitution of this new generation of water-soluble metal complexes.