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41 results on '"Metal ions -- Research"'

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1. New insights into the visible-light-induced DNA cleavage activity of dipyridoquinoxaline complexes of bivalent 3d-metal ions

2. Structural diversity and supramolecular aggregation in calcium, strontium, and barium salicylates incorporating 1,10-phenanthroline and 4,4'-bipyridine: probing the softer side of group 2 metal ions with pyridinic ligands

3. Octacyanotungstate(V)-based magnetic complex consisting of dimeric [Mn.sub.2] and tetrameric [Mn.sub.2][W.sub.2]

4. Formation of metal-anion within layered perovskite hosts. preparation of a series of new metastable transition-metal oxyhalides, (MCI)LaNb(sub)2O(sub)7 (M = Cr, Mn, Fe, Co)

5. Platinum (IV)-assisted [2+3]cycloaddition of nitrones to coordinated organonitriles. Synthesis of delta4-1,2,4-oxadiazolines

6. Cation-directed structure changes in polyoxometalate chemistry. Equilibria between isomers of bis(9-tungstophosphatodioxouranate(VI)) complexes

7. Stability and structure of metal ion complexes formed in solution with acetyl phosphate and acetonylphosphate: quantification of isomeric equilibria

8. Barriers to inversion of nonplanar ferric prophyrin radical cations: comparison with the corresponding neutral complexes

9. Single-molecule magnet behavior of a tetranuclear iron(III) complex: the origin of slow magnetic relaxation in iron(III) clusters

10. Stable Ag(II) coordination complexes in the gas phase

11. Theoretical evidence for transannular metal-metal interactions in dinuclear coinage metal complexes

12. The structures of [24-pyrimidinium crown-6][Au(CN)2]4(NO3)2.2H20, [24-pyrimidinium crown-6][Au(CN)2]6.5H20 and [16-pyrimidinium crown-4][Au(CN)2]4.6.5 H20, in which aurophilic interactions produce trimers, tetramers, and chains of Au(CN)2- ions

13. Structural properties of silver(I) and mercury(II) complexes of D-lactiobionate: self-assembled coordination polymers

14. Disproportionation of nitric oxide promoted by a Mn topocoronand

15. Structural, spectroscopic, thermodynamic and kinetic properties of copper(II) complexes with tripodal tetraamines

16. Unusual metal ion catalysis in acyl-transferase ribozyme

17. Reactivity of osmium(VI) nitrides with the azide ion. A new synthetic route to osmium(II) polypyridyl complexes

18. Structural aspects of rubidium ion selectivity by tribenzo-21-crown-71a

19. Synthesis and X-ray crystallography of Rh(I) carbonyl complexes of amethyrin

20. The coordination chemistry of fluorocarbons: difluoro-m-cyclophane-based fluorocryptands and their group I and II metal ion complexes

21. Structures and spectral properties of iron(II), cobolt(II) and copper(II) complexes involving 2-(dimethylamino)-4(3H)-pteridinone

22. Structural flexibility of the hydrogen-free acceptor ligand octachloro-1,10-phenanthroline in its complexes with d10 metal ions

23. Stabilities and structures of metal ion complexes of adenosine 5'-O-thiomonophosphate (AMPS2-) in comparison with those of its parent nucleotide (AMP2-) in aqueous solution

24. Second coordination shell water exchange rate and mechanism: experiments and modeling on hexaaquachromium(III)

25. Collisionally activated dissociation of transition metal ion/polymer complexes in a quadrupole ion trap

26. High frequency (139.5 GHz) electron paramagnetic resonance characterization of Mn(II)-H2(17)O interactions in GDP and GTP forms of p21 ras

27. Comparison of the extent of macrochelate formation in complexes of divalent metal ions with guanosine (GMP2-), inosine (IMP2-), and adenosine 5'-monophosphate (AMP2-). The crucial role of N-7 basicity in metal ion-nucleic base recognition

28. Spectroscopic studies of Co(II)-reconstituted ribonucleotide reductase R2 from Escherichia coli

29. Electronic interactions in mixed-valence and mixed-metal ion clusters: inelastic neutron scattering spectra of the complexes (Fe(sub 2)(super III)M(II)O(OOCMe)6(py)3)(py), where M = Mn, Ni

30. Octahedral vs trigonal prismatic geometry in a series of catechol macrobicyclic ligand-metal complexes

31. The design and synthesis of chelators for the uranyl ion

32. Catalysis of ethylene dimerization by complexation with metal radical cations: an ab initio study

33. Stabilities of metal complexes of the meso and SS isomers of oxydisuccinic acid

34. Controlled synthesis of ternary II-II'-VI nanoclusters and the effects of metal ion distribution on their spectral properties

35. pH- and metal ion-linked stability of the hemopexin-heme complex

36. Photodissociation of solvated metal cation complexes Mg(super +1)(OCNC2H5)(Sub n) (n=1-3)

37. Novel lanthanide coordination polymers with a flexible disulfoxide ligand, 1,2-Bis(ethylsulfinyl)ethane: structures, stereochemistry, and the influences of counteranions on the framework formations

38. Metal string complexes: synthesis and crystal structure of [Ni4(mu4-phdpda)4] = [Ni7-(mu7-teptra)4Cl2] (H2phdpda = N-phenyldipyridyldiamine and H3teptra = tetrapyridyltriamine)

39. The first fused dimer metallacrown Ni(super II)(subscript 2)(mcpa)2(CH3OH)3(H2O)(12-MC(subscript Ni)(super II)(subscript N)(subscript shi)(subscript 2)(subscript pko)(subscript 2)-4)(12-MC(subscript Ni)(super II)(subscript N)(subscript shi)(subscript 3)(subscript pko)-4)

40. Infrared multiphoton chemistry of transition metal/ethanol ion complexes

41. Synthesis and characterization of rhodium complexes containing 2,4,6-tris(2-pyridyl)-1,3,5-triazine and its metal-promoted hydrolytic products: potential uses of the new complexes in electrocatalytic reduction of carbon dioxide

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