Synthesis and Characterization of Extremely Bulky Aminopyridinate Ligands and a Series of Their Groups 1 and 2 Metal Complexes DOI Creative Commons

Arif Mahammad Earsad,

Albert Paparo, Matthew J. Evans

et al.

Inorganics, Journal Year: 2024, Volume and Issue: 12(10), P. 270 - 270

Published: Oct. 15, 2024

High-yielding synthetic routes to five new extremely bulky aminopyridine pro-ligands were developed, viz. (C5H3N-6-Ar1)N(H)Ar2-2; Ar1 = Trip, Ar2 TCHP (HAmPy1), Ar* (HAmPy2) or Ar† (HAmPy3); TCHP, (HAmPy4) (HAmPy5) (Trip 2,4,6-triisopropylphenyl, 2,4,6-tricyclohexylphenyl, C6H2(CHPh2)2Me-2,6,4, C6H2(CHPh2)2Pri-2,6,4. Four of these deprotonated with LiBun in diethyl ether give lithium aminopyridinate complexes which dimeric for the least ligand, [{Li(AmPy1)}2] monomeric bulkier aminopyridinates, i.e., [Li(AmPy2−4)(OEt2)]. One was MeMgI [Mg(AmPy3)I(OEt2)2]. When treated sodium potassium mirrors 5% w/w Na/NaCl, over-reduction occurred, leading alkali metal [M(AmPy3)(η6-toluene)] (M Na K) [{Na(AmPy3)}∞]. An attempted reduction [Mg(AmPy3)I(OEt2)2] a dimagnesium(I) compound led only partial loss and formation [(AmPy3)Mg(μ-I)2Mg(AmPy3)(OEt2)]. All prepared have potential as ligand transfer reagents salt metathesis reactions halide complexes.

Language: Английский

Synthesis and Characterization of Extremely Bulky Aminopyridinate Ligands and a Series of Their Groups 1 and 2 Metal Complexes DOI Creative Commons

Arif Mahammad Earsad,

Albert Paparo, Matthew J. Evans

et al.

Inorganics, Journal Year: 2024, Volume and Issue: 12(10), P. 270 - 270

Published: Oct. 15, 2024

High-yielding synthetic routes to five new extremely bulky aminopyridine pro-ligands were developed, viz. (C5H3N-6-Ar1)N(H)Ar2-2; Ar1 = Trip, Ar2 TCHP (HAmPy1), Ar* (HAmPy2) or Ar† (HAmPy3); TCHP, (HAmPy4) (HAmPy5) (Trip 2,4,6-triisopropylphenyl, 2,4,6-tricyclohexylphenyl, C6H2(CHPh2)2Me-2,6,4, C6H2(CHPh2)2Pri-2,6,4. Four of these deprotonated with LiBun in diethyl ether give lithium aminopyridinate complexes which dimeric for the least ligand, [{Li(AmPy1)}2] monomeric bulkier aminopyridinates, i.e., [Li(AmPy2−4)(OEt2)]. One was MeMgI [Mg(AmPy3)I(OEt2)2]. When treated sodium potassium mirrors 5% w/w Na/NaCl, over-reduction occurred, leading alkali metal [M(AmPy3)(η6-toluene)] (M Na K) [{Na(AmPy3)}∞]. An attempted reduction [Mg(AmPy3)I(OEt2)2] a dimagnesium(I) compound led only partial loss and formation [(AmPy3)Mg(μ-I)2Mg(AmPy3)(OEt2)]. All prepared have potential as ligand transfer reagents salt metathesis reactions halide complexes.

Language: Английский

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