Structural Variety in Transition Metal Complexes of Tripodal Ligands Containing Mixed Quinolyl and Pyridyl Donors.

IF 2.5 4区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

ChemistryOpen Pub Date : 2024-10-23 DOI:10.1002/open.202400304

Bronte Carr, Timothy D Christopher, Tilo Söhnel, Lawrence R Gahan, Cassandra L Fleming, Allan G Blackman

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引用次数: 0

Abstract

The syntheses of the tripodal tetraamine ligands 2-(pyridin-2-yl)-N,N-bis(quinolin-2-ylmethyl)ethan-1-amine (DQPEA), N-(pyridin-2-ylmethyl)-2-(quinolin-2-yl)-N-(2-(quinolin-2-yl)ethyl)ethan-1-amine (DQEPMA), 2-(pyridin-2-yl)-N,N-bis(2-(quinolin-2-yl)ethyl)ethan-1-amine (DQEPEA), N,N-bis(pyridin-2-ylmethyl)-2-(quinolin-2-yl)ethan-1-amine (QEDPMA), and 2-(pyridin-2-yl)-N-(2-(pyridin-2-yl)ethyl)-N-(2-(quinolin-2-yl)ethyl)ethan-1-amine (QEDPEA) containing mixed quinolyl and pyridyl moieties are reported, with 2-vinylquinoline being used to attach quinolylethyl arms to the aliphatic N atom. X-ray crystal structures of [(Mn(DQPEA))₂O₂](ClO₄)₂ ⋅ (CH₃CN)₂, [Cu(DQPEA)NCCH₃](ClO₄)₂, [Zn(DQPEA)NCCH₃](ClO₄)₂, [Pd(DQEPEA)Cl]Cl ⋅ 11H₂O are detailed, with four, five, and six-coordination observed. In addition, the dimeric complex [(DPEA)Co(μ-OH)₃Co(DPEA)](ClO₄)₃ ⋅ 0.5H₂O ⋅ MeCN containing the tridentate DPEA ligand formed by N-dealkylation of QEDPEA is reported. Calculations suggest that the very short Co…Co distance of 2.5946(6) Å in this complex is unlikely to be due to a Co-Co bond.

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含混合喹啉基和吡啶基配体的三足配体过渡金属配合物的结构变化。

三元四胺配体 2-(吡啶-2-基)-N,N-双(喹啉-2-基甲基)乙-1-胺 (DQPEA) 的合成、N-(吡啶-2-基甲基)-2-(喹啉-2-基)-N-(2-(喹啉-2-基)乙基)乙-1-胺 (DQEPMA)、2-(吡啶-2-基)-N,N-双(2-(喹啉-2-基)乙基)乙-1-胺 (DQEPEA)、N、报告了含有喹啉基和吡啶基混合分子的 2-(吡啶-2-基)-N-(2-(吡啶-2-基)乙基)-N-(2-(喹啉-2-基)乙基)乙-1-胺 (QEDPEA) 和 2-(吡啶-2-基)-N-(2-(吡啶-2-基)乙基)-N-(2-(喹啉-2-基)乙基)乙-1-胺 (QEDPEA)。详细介绍了[(Mn(DQPEA))2O2](ClO4)2 ⋅ (CH3CN)2、[Cu(DQPEA)NCCH3](ClO4)2、[Zn(DQPEA)NCCH3](ClO4)2、[Pd(DQEPEA)Cl]Cl ⋅ 11H2O 的 X 射线晶体结构，观察到四配位、五配位和六配位。此外，还报道了二聚配合物 [(DPEA)Co(μ-OH)3Co(DPEA)](ClO4)3⋅0.5H2O⋅MeCN，其中含有 QEDPEA N-脱烷基化形成的三叉 DPEA 配体。计算表明，该复合物中 2.5946(6)埃的极短 Co...Co 间距不太可能是 Co-Co 键造成的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

ChemistryOpen CHEMISTRY, MULTIDISCIPLINARY-

CiteScore

4.80

自引率

4.30%

发文量

143

审稿时长

1 months

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