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SATO N, YONEDA K, YAMADA Y, KOIKAWA M. Synthesis and Crystal Structure of a Mononuclear Cobalt(III) Complex with 2-[(2-Hydroxymethylphenyl)iminomethyl]phenol and Dimethylaminopyridine. X-RAY STRUCTURE ANALYSIS ONLINE 2022. [DOI: 10.2116/xraystruct.38.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Naoko SATO
- Department of Chemistry and Applied Chemistry, Faculty of Science and Engineering, Saga University
| | - Ko YONEDA
- Department of Chemistry and Applied Chemistry, Faculty of Science and Engineering, Saga University
| | - Yasunori YAMADA
- Department of Chemistry and Applied Chemistry, Faculty of Science and Engineering, Saga University
| | - Masayuki KOIKAWA
- Department of Chemistry and Applied Chemistry, Faculty of Science and Engineering, Saga University
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KANEGAE F, YONEDA K, KOIKAWA M. Crystal Structure of Dichloro{2-(quinolin-2-yl)-4H-benzo[d][1,3]oxazine}cobalt(II). X-RAY STRUCTURE ANALYSIS ONLINE 2022. [DOI: 10.2116/xraystruct.38.13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Fumiya KANEGAE
- Department of Chemistry and Applied Chemistry, Faculty of Science and Engineering, Saga University
| | - Ko YONEDA
- Department of Chemistry and Applied Chemistry, Faculty of Science and Engineering, Saga University
| | - Masayuki KOIKAWA
- Department of Chemistry and Applied Chemistry, Faculty of Science and Engineering, Saga University
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Formation of Tetranuclear Nickel(II) Complexes with Schiff-Bases: Crystal Structures and Magnetic Properties. CRYSTALS 2020. [DOI: 10.3390/cryst10070592] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The cubane-type structure is a typical representative of tetranuclear coordination compounds. In this work, two anionic Schiff-base ligands, (L1)2− and (L2)2−, each offering an O^N^O coordination pocket, ligate four NiII ions into a [Ni4O4] cubane core. The ligands are H2L1 = 2−[[(3-ethoxy-2−hydroxyphenyl) methylene]amino]benzenemethanol and H2L2 = 2−[[(5-fluoro-2−hydroxyphenyl)methylene]amino]benzenemethanol. In both compounds, [Ni4(L1)4(EtOH)4] (1) and [Ni4(L2)4(MeOH)4] (2), alkoxy oxygens of the ligands act in a bridging μ3-O binding mode. Magnetic susceptibility and magnetization data for compounds 1 and 2 are presented. The Ni–O–Ni bond angles of the cubane core determined from single crystal X-ray diffraction data play a key role for a magneto-structural correlation. Dominant intracube ferromagnetic behavior is observed, and the coupling parameters were determined for both compounds, leading to nonzero spin ground states in accordance with the broadly accepted bond angle guideline.
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Synthesis of novel Cl2Co4L6 clusterusing 1-hydroxymethyl-3,5-dimethylpyrazole (LH) ligand: Crystal structure, spectral, thermal, Hirschfeld surface analysis and catalytic oxidation evaluation. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.126995] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Shalini C, Vignesh A, Kaminsky W, Dharmaraj N. Mixed valent/geometry, linear, tetranuclear nickel complex bearing ONO pincer ligand exhibiting hitherto unknown ligation mode. Polyhedron 2018. [DOI: 10.1016/j.poly.2017.09.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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