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Your search keyword '"Pyridazine -- Chemical properties"' showing total 6 results
Start Over Descriptor "Pyridazine -- Chemical properties" Topic coordination compounds -- chemical properties
6 results on '"Pyridazine -- Chemical properties"'

1. Self-assembled metallacycles with pyrazine edges: a new example in which the unexpected molecular triangle prevails over the expected molecular square

Author

Derossi, Sofia, Casanova, Massimo, Iengo, Elisabetta, Zangrando, Ennio, Stener, Mauro, and Alessio, Enzo

Subjects
Pyridazine -- Research, Pyridazine -- Chemical properties, Pyridazine -- Structure, Coordination compounds -- Research, Coordination compounds -- Chemical properties, Coordination compounds -- Structure, Ruthenium -- Research, Ruthenium -- Chemical properties, Chemistry
Abstract

The treatment of the 90 degree angular precursor trans-[Ru[Cl.sub.2][(dmso-S).sub.4]] with an equivalent amount of the linear and rigid pyrazine (pyz) linker has produced the molecular triangle [[{trans,cis-Ru[Cl.sub.2][(dmso-S).sub.2]([mu]-pyz)}.sub.3]] instead of the molecular squares. The results have shown that the entropically favored molecular triangles are preferred over the expected molecular squares with metal corner fragments that have favored [N.sub.pyz]-M-[N.sub.pyz] angles narrower than 90 degrees due to the presence of ancillary ligands.

Published
2007

3. Polypyridyl ruthenium(II) complexes with tetrazolate-based chelating ligands: synthesis, reactivity and electrochemical and photophysical pfroperties

Author

Stagni, Stefano, Orselli, Enrico, Palazzi, Antonio, Cola, Luisa De, Zacchini, Stefano, Femoni, Cristina, Marcaccio, Massimo, Paolucci, Francesco, and Zanarini, Simone

Subjects
Coordination compounds -- Chemical properties, Nuclear magnetic resonance spectroscopy -- Technology application, Pyridazine -- Chemical properties, Pyridazine -- Electric properties, Ruthenium -- Chemical properties, Technology application, Chemistry
Abstract

The studies of pyridyl-tetrazolate or pyrazinyl-tetrazolates as anionic bpy-type ligands for Ru(II) polypyridyl complexes where (pby = 2,2'-bipyridyl) is reported.

Published
2007

4. Bivalent and trivalent iron complexes of acyclic hexadentate ligands providing pyridyl/pyrazine-amide-thioether coordination

Author

Singh, Akhilesh Kumar and Mukherjee, Rabindranath

Subjects
Iron compounds -- Chemical properties, Pyridazine -- Chemical properties, Coordination compounds -- Chemical properties, Chemistry
Abstract

The synthesis and characterization of a family of complexes [Fe(super II)(bpctb)], [Fe(super III)(bpctb)][PF6], [Fe(super III)(bpctb)][NO3].H2O, [Fe(super II)(bpzctb)].Ch2Cl2, and [Fe(super III)(bpzctb)][NO3].H2O is reported. The structural and redox properties of Fe(II)/Fe(III) complexes of pseudooctahedral MN2(pyridine)N'(sub 2-)(amide)S2(thioether) coordination are compared with that of the corresponding MN2(pyridine)N'(sub 2)(amide)S2(thiolate) coordination environment.

Published
2005

5. Metal-centered ferrocene clusters from 5-ferrocenylpyrimidine and ferrocenylpyrazine

Author

Horikoshi, Ryo, Nambu, Chisato, and Mochida, Tomoyuki

Subjects
Chemistry, Inorganic -- Research, Inorganic compounds -- Chemical properties, Inorganic compounds -- Composition, Inorganic compounds -- Structure, Iron compounds -- Chemical properties, Coordination compounds -- Chemical properties, Coordination compounds -- Composition, Coordination compounds -- Structure, Polymers -- Chemical properties, Polymers -- Composition, Pyridazine -- Chemical properties, Pyrimidines -- Chemical properties, Salts -- Chemical properties, Salts -- Composition, Transition metals -- Chemical properties, Transition metals -- Composition, Transition metals -- Structure, Chemistry
Abstract

Research has been conducted on metal-centered ferrocene compounds. The authors report that these compounds have been designed via the use of 5-ferrocenylpyrimidine and ferrocenylpyrazine, and that when combined with transition metal salts they produce structurally diverse mixed-metal polynuclear complexes.

Published
2003

6. Solid state coordination chemistry: one-, two-, and three-dimensional materials constructed from molybdophosphonate subunits linked through binuclear copper tetra-2-pyridylpyrazine groups

Author

Burkholder, Eric, Golub, Vladimir, O'Connor, Charles J., and Zubieta, Jon

Subjects
Chemistry, Inorganic -- Research, Complex compounds -- Chemical properties, Complex compounds -- Composition, Complex compounds -- Structure, Coordination compounds -- Chemical properties, Coordination compounds -- Composition, Coordination compounds -- Structure, Copper -- Chemical properties, Inorganic compounds -- Chemical properties, Inorganic compounds -- Composition, Inorganic compounds -- Structure, Molybdenum -- Chemical properties, Phosphonates -- Chemical properties, Phosphoric acid -- Chemical properties, Pyridazine -- Chemical properties, Solid state chemistry -- Research, Water chemistry -- Analysis, Chemistry
Abstract

Research has been conducted on organic-inorganic hybrid materials of the copper-molybdophosphonate family. The authors describe the production of these materials via hydrothermal reactions of Cu(II) source, MoO (sub)3, tetra-2-pyridylpyrazine, phosphoric acid and organophosphonate.

Published
2003

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