Structural Studies of Rare Earth/Transition Metal Complex Ion Systems as a Basis for Understanding Their Thermal Decomposition to Mixed Oxides

Chloro-substituted dipicolinate vanadium complexes: Synthesis, solution, solid-state, and insulin-enhancing properties

“…Preparation of a range of substituted dipicolinato-vanadium complexes has been of interest in part because of the insulinenhancing effects of such vanadium compounds and applications of these ligands in supramolecular chemistry [35][36][37], and redox chemistry [38,39] However, most of this work has been carried out with the simple H 2 dipic and H 2 dipic-OH ligands that are commercially available. The H 2 dipic-Cl ligand is prepared via the chlorination of the H 2 dipic-OH ligand and much less information is available on this system.…”

Polyhedral Structures with an Odd Number of Vertices: Nine‐Coordinate Metal Compounds

“…In all of these complexes, the clamp ligands are arranged in a helical manner (13) as noted earlier by Drew, [3] each one decorating one of the square faces of the trigonal prism, as illustrated by the example shown in Figure 11. [44] In spite of the helical nature of these complexes, none has crystallized in an enantiomorphic space group and the two enantiomers are, therefore, present in achiral solids.…”

“…Figure 11. Coordination sphere of the lutetium atom in the [Lu(1,3-pyridinetricarboxylato) 3 ] 3À ion, [44] which shows the helical arrangement of the tridentate ligands, also represented by schematic version 13. ent branching schemes and denticities, with their topologies illustrated by 15. All of these compounds behave similarly to monodentate ligands and have structures close to the CSAPR and the TCTPR, but well separated from the interconversion path, most likely because of the constraints imposed by the chelate rings.…”

A new anion, [Hg2(SCN)7]3−: First synthesis, spectroscopic characterization and X-ray structure determination of [Co(NH3)6][Hg2(SCN)7]

“…The synthesis of hexaamminecobalt(III) salts has attracted a lot of attention because of their interesting structural chemistry [1][2][3][4][5][6][7]. Due to intrigue in the complex salts obtained by reacting hexaamminecobalt(III) chloride with various metal salts [8], we envisaged that octahedral hexaamminecobalt(III) complex ion should provide two triangular triammine faces with nine N-H bonds each that can act as potential hydrogen bond donors.…”