In the title complex, [Co(C(22)H(18)N(2)O(4))(CN)(H(2)O)]·0.5CH(3)CN, the Co(III) cation is N,N',O,O'-chelated by a 6,6'-dimeth-oxy-2,2'-[1,2-phenyl-enebis(nitrilo-methanylyl-idene)]diphenolate dianion, and is further coordinated by a cyanide anion and a water mol-ecule in the axial sites, completing a distorted octa-hedral coordination geometry. In the crystal, pairs of bifurcated O-H⋯(O,O) hy...

The title compound, Cd(2)P(4)O(12), dicadmium cyclo-tetra-phosphate, crystallizes isotypically with the members of the series M(II) (2)P(4)O(12), where M = Mg, Mn, Fe, Co, Ni or Cu. Two CdO(6) octa-hedra, one with 2 and one with symmetry, share corners with the centrosymmetric P(4)O(12) (4-) ring anion that is built up from four corner-sharing PO(4) tetra-hedra. The isolated ring anions are arr...

By using laser ablation of the mixtures of a transition metal (M: Ti, Cr, Mn, Fe, Co, Ni, Cu, Zn, Pd, Ag) plus lead, M/Pb binary cluster anions were observed except for Zn, and the number of transition metal atoms contained in the binary clusters is at most 4. This behavior is different from that reported previously for M/Ge binary clusters. The experiments indicate that it is also very difficu...

The effects of inorganic anions such as chloride, sulfate, and phosphate on the adsorption of non ionic polyacrylamide on hematite are studied. Adsorption of the polymer is reduced in all cases, with complete depression by phosphate. The relative eff«tiveness of these anions in reducing polymer adsorption in~ in the order chloride < sulfate < phosphate. a trend which corresponds to the relative...

A dinuclear ruthenium(II) complex linked via a reducible azo group [Ru(bpy)2(azobpy)Ru(bpy)2]Cl4 (Ru2azo, bpy=2,2'-bipyridine, azobpy=4,4″-azobis (2,2'-bipyridine)) was adopted as a probe for thiols. Results showed that Ru2azo could selectively and effectively react with biological thiols (such as cysteine, homocysteine and glutathione) with a 10(-7)M detection limit. After it reacted with thio...

In water treatment, adsorption & ion exchange are usually used on the stage of deep purification when higher selectivity to toxic molecules and ions is needed. Inorganic ion exchangers are that class of the adsorptive materials which, if developed by the advanced synthesis approaches, are capable to lower the concentrations of target anions up to the level requesting by World Health Organizatio...

In the title dinuclear complex, [Cu(2)(C(5)H(10)NO(2))(2)(C(10)H(8)N(2))(3)(H(2)O)(2)](NO(3))(2)·2H(2)O, each of the two l-valinate anions chelates a Cu(II) center through the amino N and carboxyl-ate O atom, forming a five-membered ring. A 4,4'-bipyridine mol-ecule bridges two water-coordinated Cu atoms, each of which is connected to another 4,4'-bipyridine, giving rise to a square-pyramidal c...

Coupled cluster (CC) methods provide highly accurate predictions of molecular properties, but their high computational cost has precluded their routine application to large systems. Fortunately, recent computational developments in the ACES III program by the Bartlett group [the OED∕ERD atomic integral package, the super instruction processor, and the super instruction architecture language] pe...

Reactions of 3,6-bis(2-pyridyl)-1,2,4,5-tetrazine (bptz) with solvated first-row transition metals M(II) (M(II) = Ni, Zn, Mn, Fe, Cu) have been explored with emphasis on the factors that influence the identity of the resulting cyclic products for Ni(II) and Zn(II). The relatively small anions, namely [ClO4]- and [BF4]-, lead to the formation of molecular squares [{M4(bptz)4(CH3CN)8} subsetX][X]...

This study focused upon the determination of physicochemical and microbial properties, including metals, selected anions and coliform bacteria in drinking water samples from hand-dug wells in the Kumasi metropolis of the Republic of Ghana. The purpose was to assess the quality of water from these sources. Ten different water samples were taken from different parts of Kumasi, the capital of the ...