136667-95-3Relevant academic research and scientific papers
A convenient new route to tetradentate and pentadentate macrocyclic tetraamide ligands
Rorrer, Leonard C.,Hopkins, Stephen D.,Connors, Michele K.,Lee III, Daniel W.,Smith, Matthew V.,Rhodes, Hilary J.,Uffelman, Erich S.
, p. 1157 - 1159 (1999)
(matrix presented) A crucial diamide diamine intermediate in the synthesis of tetradentate macrocyclic tetraamide ligands protected against oxidative decomposition has been synthesized without the use of potentially hazardous organic azide intermediates.
Synthesis of a tetraamido macrocycle ligand
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, (2008/06/13)
An improved synthesis for preparing a tetraamido-macrocyclic ligand, such as 5,6-Benzo-3,8,11,13-tetraoxo-2,2,9,9-tetramethyl-12,12-diethyl-1,4,7,10-tetraazacyclotridecane, H4, in greatly improved yield and in a commercially viable manner, comprising the
Der erste stabile Kupfer(III)-Komplex mit aliphatischen Thiolaten als Liganden: struktureller und spektroskopischer Nachweis von Cu(II)- und Cu(III)-Ionen in Komplexen mit quadratisch-planaren CuN2S2-Koordinationssphaeren
Hanss, Jan,Krueger, Hans-Joerg
, p. 2989 - 2991 (2007/10/03)
Keywords: Kupferverbindungen; Thiolatkomplexe
Stable highly oxidizing cobalt complexes of macrocyclic ligands
Collins, Terrence J.,Powell, Richard D.,Slebodnick, Carla,Uffelman, Erich S.
, p. 8419 - 8425 (2007/10/02)
The first crystallographically characterized neutral square-planar complex of cobalt in an oxidation state higher than 2+, Co(η44-1), is reported. Structural data for this new class of compounds indicate that the macrocycle in Co(η4-1) is Equation Presented X = Cl, Co(η4-1) X = H, Co(η4-2) X = MeO, Co(η4-3) noninnocent; however, EPR data in toluene at 5.9 K (S = 1/2; g1 = 2.558, g2 = 2.170, g3 = 2.017; A2 ≈ 15 G) show that the metal center is the primary reisdence site of the unpaired electron. Co(η4-1) is a stable, yet potent, oxidant which is soluble in benzene and slightly soluble in pentane. The Co(η4-1)/[CoIII(η4-1)]- couple is reversible and found at 0.550 V vs Fc+/Fc in CH2Cl2 (ca. 1.26 V vs NHE). Co(η4-1) slowly oxidized water, yielding H[CoIII(η4-1)], which may also be prepared by the reaction of [CoIII(η4-1)]- with HBF4. Both the redox and the acid/base chemistries of [CoIII(η4-1)]- are reversible. Electrochemical and EPR data are also presented for Co(η4-2) and Co(η4-3).
