Structural Variety in Transition Metal Complexes of Tripodal Ligands Containing Mixed Quinolyl and Pyridyl Donors
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(pyr...
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Wiley-VCH
2025-01-01
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| Online Access: | https://doi.org/10.1002/open.202400304 |
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| author | Bronte Carr Timothy D. Christopher Tilo Söhnel Lawrence R. Gahan Cassandra L. Fleming Allan G. Blackman |
| author_facet | Bronte Carr Timothy D. Christopher Tilo Söhnel Lawrence R. Gahan Cassandra L. Fleming Allan G. Blackman |
| author_sort | Bronte Carr |
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| description | 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. |
| format | Article |
| id | doaj-art-3dbb72ad79064a6bab742978b652e471 |
| institution | Kabale University |
| issn | 2191-1363 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Wiley-VCH |
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| series | ChemistryOpen |
| spelling | doaj-art-3dbb72ad79064a6bab742978b652e4712025-01-11T07:54:11ZengWiley-VCHChemistryOpen2191-13632025-01-01141n/an/a10.1002/open.202400304Structural Variety in Transition Metal Complexes of Tripodal Ligands Containing Mixed Quinolyl and Pyridyl DonorsBronte Carr0Timothy D. Christopher1Tilo Söhnel2Lawrence R. Gahan3Cassandra L. Fleming4Allan G. Blackman5Department of Chemistry Auckland University of Technology Private Bag 92006 Auckland 1142 New ZealandSchool of Chemical Sciences University of Auckland Private Bag 92019 Auckland 1142 New ZealandSchool of Chemical Sciences University of Auckland Private Bag 92019 Auckland 1142 New ZealandSchool of Chemistry and Molecular Biosciences The University of Queensland Brisbane, Queensland 4072 AustraliaDepartment of Chemistry Auckland University of Technology Private Bag 92006 Auckland 1142 New ZealandDepartment of Chemistry Auckland University of Technology Private Bag 92006 Auckland 1142 New ZealandAbstract 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.https://doi.org/10.1002/open.202400304TripodalQuinolineX-ray structureDimerCalculations |
| spellingShingle | Bronte Carr Timothy D. Christopher Tilo Söhnel Lawrence R. Gahan Cassandra L. Fleming Allan G. Blackman Structural Variety in Transition Metal Complexes of Tripodal Ligands Containing Mixed Quinolyl and Pyridyl Donors ChemistryOpen Tripodal Quinoline X-ray structure Dimer Calculations |
| title | Structural Variety in Transition Metal Complexes of Tripodal Ligands Containing Mixed Quinolyl and Pyridyl Donors |
| title_full | Structural Variety in Transition Metal Complexes of Tripodal Ligands Containing Mixed Quinolyl and Pyridyl Donors |
| title_fullStr | Structural Variety in Transition Metal Complexes of Tripodal Ligands Containing Mixed Quinolyl and Pyridyl Donors |
| title_full_unstemmed | Structural Variety in Transition Metal Complexes of Tripodal Ligands Containing Mixed Quinolyl and Pyridyl Donors |
| title_short | Structural Variety in Transition Metal Complexes of Tripodal Ligands Containing Mixed Quinolyl and Pyridyl Donors |
| title_sort | structural variety in transition metal complexes of tripodal ligands containing mixed quinolyl and pyridyl donors |
| topic | Tripodal Quinoline X-ray structure Dimer Calculations |
| url | https://doi.org/10.1002/open.202400304 |
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