Novel Dinucleating Poly(oxime) Amine Ligands and Their Nickel and Zinc Complexes PDF Download
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Author: Elizabeth Ann Deters
Publisher:
ISBN:
Category :
Languages : en
Pages : 120
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Book Description
A series of mononuclear poly(oxime) amine nickel(II) complexes has been shown to catalyze the oxidation of various substances. To further this work, a series of novel dinucleating ploy(oxime) amine ligands and their nickel complexes were synthesized. During this synthesis, a novel anion dependence on the nuclearity of the complex was discovered and investigated for two of the ligands. All of the dinuclear complexes were shown to catalyze the oxidation of various substances, including methanol, benzyl alcohol, and benzylamine. In addition to the oxygen reactivity, zinc complexes of the poly(oxime) amine ligands were shown to have hydrolysis reactivity. These complexes successfully catalyzed the hydrolysis of p-nitrophenyl acetate. Some preliminary kinetic data for the reaction was also obtained.
Author: Elizabeth Ann Deters
Publisher:
ISBN:
Category :
Languages : en
Pages : 120
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Book Description
A series of mononuclear poly(oxime) amine nickel(II) complexes has been shown to catalyze the oxidation of various substances. To further this work, a series of novel dinucleating ploy(oxime) amine ligands and their nickel complexes were synthesized. During this synthesis, a novel anion dependence on the nuclearity of the complex was discovered and investigated for two of the ligands. All of the dinuclear complexes were shown to catalyze the oxidation of various substances, including methanol, benzyl alcohol, and benzylamine. In addition to the oxygen reactivity, zinc complexes of the poly(oxime) amine ligands were shown to have hydrolysis reactivity. These complexes successfully catalyzed the hydrolysis of p-nitrophenyl acetate. Some preliminary kinetic data for the reaction was also obtained.
Author: Michael Joseph Goldcamp
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Ligands containing two oxime donor groups with a variable third group in a tripodal amine motif have been designed and synthesized. Their Ni(II) complexes, and some Zn(II), Cu(II), and Fe(III) complexes, have been structurally and spectroscopically characterized. Deprotonation of the oxime groups gives Ni(II)--Polyoximate complexes that form bis(N-O) oximate bridged dimers with significantly low oxidation potentials for Ni(II). These Ni(II)-polyoximate complexes react with dioxygen, consuming multiple equivalents. This is unusual chemistry for Ni(II), especially in the absence of ligand oxidation. The Ni(II) / O 2 reaction system promotes oxidation of triphenyl phosphine, with oxygen atom transfer, benzyl alcohol, and 3,5-di-tert-butylcatechol. Reaction of the Ni(II)-polyoximate complexes with o-quinones causes the formation of high-valent nickel complexes of the reduced dioxolenes, semiquinones and catecholates.
