Influence of the 5-substituent of uracils and uridines on .eta.2 coordination of [ethylenediaminetetraacetato(3-)]ruthenate(1-) at the C-5 C-6 bonds

Relative reactivity of N- and S-donor ligands in substitution reactions of aquaethylenedinitrilotetraacetatoruthenium(III) in aqueous solution *

“…Since at this pH only reaction (8) has any significance, this second-order rate constant can be presented as k 1 . Thus these observations agree well with the proposed rate equation (15).…”

“…The chemistry of aminopolycarboxylate complexes of Ru II ,Ru III is also of continued interest due to their biochemical importance [14][15][16][17] and catalytic activity in oxidation reactions. [18][19][20] On dissolution of K[Ru(Hedta)Cl]ؒ2H 2 O the complex undergoes rapid aquation to produce [Ru(edta)(H 2 O)] Ϫ .…”

Uracilato and 5-halouracilato complexes of Cu(II), Zn(II) and Ni(II). X-ray structures of [Cu(uracilato-N1)2(NH3)2]·2(H2O), [Cu(5-chlorouracilato-N1)2(NH3)2](H2O)2, [Ni(5-chlorouracilato-N1)2(en)2]·2H2O and [Zn(5-chlorouracilato-N1)(NH3)3]·(5-chlorouracilato-N1)·(H2O)

“…A similar d Hð6Þ value of [Zn(Cl-ura)(NH 3 ) 3 ] Á (Clura) Á (H 2 O) (3) (7.72 ppm) and free 5-chlorouracil (7.77 ppm) [23] show that the Zn(II) complex is not stable in DMSO and only the signal assigned to 5-chlorouracil is observed [24]. In other typical NMR solvents (D 2 O and CDCl 3 ) this complex is not soluble.…”

Quaternized Chitosan-Coated Montmorillonite Interior Antimicrobial Metal–Antibiotic in Situ Coordination Complexation for Mixed Infections of Wounds

“…Then, the obtained copper-based montmorillonite (Cu-MMT) and 5-FC (20 mg) were sequentially added to water (16 mL). The reaction mixture was kept under nitrogen in the glovebox and stirred at medium speed for 24 h under ice-bath conditions . The sign of the completion of the coordination was that the white ligand was completely dissolved.…”