title: Cd2+ complexation with P(CH2OH)3, OP(CH2OH)3, and (HOCH2)2PO2(-): coordination in solution and coordination polymers.
abstract: The coordination of Cd(2+) with P(CH(2)OH)(3) (THP) in methanol was followed by (31)P and (111)Cd NMR techniques. A cadmium-to-phosphine coordination ratio of 1:3 has been established, and effective kinetic parameters have been calculated. Air oxidation of THP in the presence of CdCl(2) at room temperature produces coordination polymer (3)(∞)[Cd(3)Cl(6)(OP(CH(2)OH)(3))(2)] (1). The same oxidation reaction at 70 °C gives another coordination polymer, (∞)[CdCl(2)(OP(CH(2)OH)(3))] (2). Complexes 1 and 2 are the first structurally characterized complexes featuring OP(CH(2)OH)(3) as a ligand that acts as a linker between Cd atoms. The addition of NaBPh(4) to the reaction mixture gives coordination polymer (∞)[Na(2)CdCl(2)(O(2)P(CH(2)OH)(2))(2)(H(2)O)(3)] (3) with (HOCH(2))(2)PO(2)(-) as the ligand. Coordination polymers 1-3 have been characterized by X-ray analysis, elemental analysis, and IR spectroscopy.
authors.affiliation: Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Science, Novosibirsk 630090, Russia.
authors.forename: Alexander V
authors.initials: AV
authors.lastname: Anyushin
authors.forename: Dmitry A
authors.initials: DA
authors.lastname: Mainichev
authors.forename: Nikolay K
authors.initials: NK
authors.lastname: Moroz
authors.forename: Pavel A
authors.initials: PA
authors.lastname: Abramov
authors.forename: Dmitry Yu
authors.initials: DY
authors.lastname: Naumov
authors.forename: Maxim N
authors.initials: MN
authors.lastname: Sokolov
authors.forename: Vladimir P
authors.initials: VP
authors.lastname: Fedin