含喹啉基和吡啶基混合供体的三脚架配体过渡金属配合物的结构多样性
Structural Variety in Transition Metal Complexes of Tripodal Ligands Containing Mixed Quinolyl and Pyridyl Donors.
作者信息
Carr Bronte, Christopher Timothy D, Söhnel Tilo, Gahan Lawrence R, Fleming Cassandra L, Blackman Allan G
机构信息
Department of Chemistry, Auckland University of Technology, Private Bag 92006, Auckland, 1142, New Zealand.
School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand.
出版信息
ChemistryOpen. 2025 Jan;14(1):e202400304. doi: 10.1002/open.202400304. Epub 2024 Oct 23.
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))O ⋅ (CHCN), Cu(DQPEA)NCCH, Zn(DQPEA)NCCH, [Pd(DQEPEA)Cl]Cl ⋅ 11HO are detailed, with four, five, and six-coordination observed. In addition, the dimeric complex (DPEA)Co(μ-OH)Co(DPEA) ⋅ 0.5HO ⋅ 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.
报道了含喹啉基和吡啶基混合部分的三脚架四胺配体2-(吡啶-2-基)-N,N-双(喹啉-2-基甲基)乙-1-胺(DQPEA)、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,N-双(吡啶-2-基甲基)-2-(喹啉-2-基)乙-1-胺(QEDPMA)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)的合成，其中2-乙烯基喹啉用于将喹啉基乙基臂连接到脂肪族N原子上。详细报道了(Mn(DQPEA))O⋅(CHCN)、Cu(DQPEA)NCCH、Zn(DQPEA)NCCH、[Pd(DQEPEA)Cl]Cl⋅11HO的X射线晶体结构，观察到四配位、五配位和六配位情况。此外，还报道了由QEDPEA的N-脱烷基化形成的含三齿DPEA配体的二聚配合物(DPEA)Co(μ-OH)Co(DPEA)⋅0.5HO⋅MeCN。计算表明，该配合物中2.5946(6) Å的极短Co…Co距离不太可能归因于Co-Co键。
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