Ternary complexes of copper(I) with 2,9-dimethyl-1,10-phenanthroline and some oxygen-donor ligands

1981 ◽  
pp. 452 ◽  
Author(s):  
Whei-Lu Kwik ◽  
Kok-Peng Ang
Keyword(s):  
Ternary Complexes ◽  
Donor Ligands ◽  
Oxygen Donor

Preparation and characterization of some ternary complexes of copper(II) with o-phenanthroline and oxygen donor ligands

1978 ◽  
Vol 31 (2) ◽  
pp. 459 ◽  
Author(s):  
WL Kwik ◽  
KP Ang
Keyword(s):  
Chelate Ring ◽  
Ternary Complexes ◽  
Donor Ligands ◽  
Ring Size ◽  
Spectral Measurements ◽  
Absorption Bands ◽  
Donor Ligand ◽  
Oxygen Donor ◽  
Infrared Spectral

A series of eight ternary complexes, viz. [Cu(phen)(acac)] Cl and Cu(phen)L(H2O)n(phen = o-phenanthroline; L = a bidentate oxygen donor ligand; n = 0, 1 or 2), have been prepared and characterized by microanalysis, infrared spectral and electronic spectral measurements. The results indicate that the Cu(phen)2+ species has a great affinity for oxygen donor ligands resulting in chelate rings of varying sizes. Infrared spectral data indicate that the Cu-O bond weakens as the oxygen donor chelate ring increases in size; the Cu-N bond appears to be less sensitive to ring size. Tentative assignments for the electronic absorption bands have also been made.

Synthesis and molecular structure of Cd9(OC2H4OMe)18,2HOC2H4OMe, the first cadmium aggregate based on oxygen donor ligands

Polyhedron ◽  
1992 ◽  
Vol 11 (11) ◽  
pp. 1331-1336 ◽  
Author(s):  
Souad Boulmaaz ◽  
Renée Papiernik ◽  
Liliane G. Hubert-Pfalzgraf ◽  
Jacqueline Vaissermann ◽  
Jean-Claude Daran
Keyword(s):  
Molecular Structure ◽  
Donor Ligands ◽  
Oxygen Donor

Structural and Spectroscopic Comparisons between (μ-Oxo)- and (μ-Hydroxo)bis(μ-carboxylato)diiron(III) Complexes That Contain All-Oxygen-Donor Ligands

1999 ◽  
Vol 38 (18) ◽  
pp. 4098-4103 ◽  
Author(s):  
Tadashi J. Mizoguchi ◽  
Roman M. Davydov ◽  
Stephen J. Lippard
Keyword(s):  
Donor Ligands ◽  
Oxygen Donor

Samarium(II) Surrounded by Only Oxygen Donor Ligands: [KSm(.mu.-OC6H2But2-2,6-Me-4)3(THF)]n

1995 ◽  
Vol 34 (1) ◽  
pp. 5-6 ◽  
Author(s):  
William J. Evans ◽  
Reiner Anwander ◽  
Mohammad A. Ansari ◽  
Joseph W. Ziller
Keyword(s):  
Donor Ligands ◽  
Oxygen Donor

Polyoxometalate-Supported Lanthanoid Single-Molecule Magnets

2014 ◽  
Vol 67 (11) ◽  
pp. 1542 ◽  
Author(s):  
Michele Vonci ◽  
Colette Boskovic
Keyword(s):  
Single Molecule ◽  
Energy Barrier ◽  
Magnetic Relaxation ◽  
Donor Ligands ◽  
Single Molecule Magnets ◽  
Single Molecule Magnet ◽  
Coordination Numbers ◽  
Oxygen Donor ◽  
Slow Magnetic Relaxation

Polyoxometalates are robust and versatile multidentate oxygen-donor ligands, eminently suitable for coordination to trivalent lanthanoid ions. To date, 10 very different structural families of such complexes have been found to exhibit slow magnetic relaxation due to single-molecule magnet (SMM) behaviour associated with the lanthanoid ions. These families encompass complexes with between one and four of the later lanthanoid ions: Tb, Dy, Ho, Er, and Yb. The lanthanoid coordination numbers vary between six and eleven and a range of coordination geometries are evident. The highest energy barrier to magnetisation reversal measured to date for a lanthanoid–polyoxometalate SMM is Ueff/kB = 73 K for the heterodinuclear Dy–Eu compound (Bu4N)8H4[DyEu(OH)2(γ-SiW10O36)2].

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