A hybrid strategy for solar water splitting is exploited here based on a dye-sensitized photoelectrosynthesis cell (DSPEC) with a mesoporous SnO2/TiO2 core/shell nanostructured electrode derivatized with a surface-bound Ru(II) polypyridyl-based chromophore-catalyst assembly. The assembly, [(4,4'-(PO3H2)2bpy)2Ru(4-Mebpy-4'-bimpy)Ru(tpy)(OH2)](4+) ([Ru(a) (II)-Ru(b) (II)-OH2](4+), combines both a...

Rate (k) and equilibrium (K) constants for the reaction of tetrahydrofuranol with a series of Mg(2+) complexes of methyl triphosphate analogues, CH3O-P(O2)-O-P(O2)-X-PO3(4-), X = O, CH2, CHCH3, C(CH3)2, CFCH3, CHF, CHCl, CHBr, CFCl, CF2, CCl2, and CBr2, forming phosphate diester and pyrophosphate or bisphosphonate in aqueous solution were evaluated by B3LYP/TZVP//HF/6-31G* quantum chemical calc...

By introducing the second organic N-heterocyclic ligands 2,2'-bipyridine (2,2'-bipy)/1,10-phenanthroline (phen), two mono-/bi-nuclear examples of Cu(II)-diphosphonate coordination polymers based on 1-hydroxyethylidenediphosphonic acid (H5L=CH3C(OH)(PO3H2)2), [Cu(H4L)2(2,2'-bipy)]·H2O 1 and [Cu(H3L)(phen)]2·(HOCH2CH2OH)0.52, have been solvothermally obtained and characterized by powder X-ray dif...

Currently, the functional monomer 10-methacryloyloxy-decyl-dihydrogen-phosphate (10-MDP) was documented to chemically bond to zirconia ceramics. However, little research has been conducted to unravel the underlying mechanisms. This study aimed to assess the chemical interaction and to demonstrate the mechanisms of coordination between 10-MDP and zirconium oxide using 1H and 31P magic angle spin...

Hexaniobate nanoscrolls (NS-H4Nb6O17) and acid-restacked calcium niobate nanosheets (R-HCa2Nb3O10) were compared as oxide semiconductors in photocatalytic assemblies for H2 production using ethylenediaminetetraacetic acid (EDTA) as a sacrificial electron donor and platinum (Pt) nanoparticles as catalysts. Ru(bpy)3 and Ru(bpy)2(4,4′-(PO3H2)2bpy) (bpy ) 2,2′-bipyridine) were employed as visible l...

Cyclophosphamide (CP) is an alkylating agent and its tumor cell-killing activity is mainly due to its DNA alkylation. Phosphoramide mustard and acrolein are the two active metabolites of CP. CP metabolites can react with carboxyl (-C[O]OH), mercapto (-SH), amino (-NH2), phosphate (-PO3H2) and hydroxyl (-OH) groups, and can form cross-links with DNA and proteins (Todorova et al., 2009). The prec...

The Dion-Jacobson phase niobate perovskite, KCa2Nb3O10, was prepared by the polymerized complex (PC) method. The corresponding proton-exchanged material, HCa2Nb3O10, was then exfoliated by reaction with tetra(n-butyl)ammonium hydroxide (TBAOH), yielding unilamellar colloidal nanosheets whose lateral dimensions increased with the final calcination temperature in the PC synthesis. By restacking t...

Splitting water into hydrogen and oxygen by dye-sensitized photoelectrochemical cell (DSPEC) is a promising approach to solar fuels production. In this study, series of pyridine derivatives as surface additives were modified on molecular chromophore oxidation catalyst co-loaded TiO2 photoanode, TiO2|RuP, 1 (RuP = Ru(4,4?-(PO3H2)2-2,2?-bipyridine)(2,2?-bipyridine)2, Ru(bda)(L)2, (bda 2,2?-bipyri...