Syntheses and structures of dinuclear zinc(II) acetate-bridged coordination compounds with the aromatic Schiff base chelators N,N-dimethyl-2-[phenyl(pyridin-2-yl)methylidene]hydrazine-1-carbothioamide and N-ethyl-2-[phenyl(pyridin-2-yl)methylidene]hydrazine-1-carbothioamide
In the centrosymmetric title complexes, di-μ-acetato-bis({N,N-dimethyl-2-[phenyl(pyridin-2-yl)methylidene]hydrazine-1-carbothioamidato}zinc(II)), [Zn2(C15H15N4S)2(C2H3O2)2] (I), and di-μ-acetato-bis({N-ethyl-2-[phenyl(pyridin-2-yl)methylidene]hydrazine-1-carbothioamidato}zinc(II)), [Zn2(C16H17N4S)2(...
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International Union of Crystallography
2025-07-01
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| Series: | Acta Crystallographica Section E: Crystallographic Communications |
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| Online Access: | https://journals.iucr.org/paper?S2056989025005407 |
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| author | Christian S. Parry Alex R. Abraham Samuel K. Kwofie Michael D. Wilson Timothy R. Ramadhar Raymond J. Butcher |
| author_facet | Christian S. Parry Alex R. Abraham Samuel K. Kwofie Michael D. Wilson Timothy R. Ramadhar Raymond J. Butcher |
| author_sort | Christian S. Parry |
| collection | DOAJ |
| description | In the centrosymmetric title complexes, di-μ-acetato-bis({N,N-dimethyl-2-[phenyl(pyridin-2-yl)methylidene]hydrazine-1-carbothioamidato}zinc(II)), [Zn2(C15H15N4S)2(C2H3O2)2] (I), and di-μ-acetato-bis({N-ethyl-2-[phenyl(pyridin-2-yl)methylidene]hydrazine-1-carbothioamidato}zinc(II)), [Zn2(C16H17N4S)2(C2H3O2)2] (II), the zinc ions are chelated by the N,N,S-tridentate ligands and bridged by pairs of acetate ions. The acetate ion in (I) is disordered over two orientations in a 0.756 (6):0.244 (6) ratio, leading to different zinc coordination modes for the major (5-coordinate) and minor (6-coordinate) disorder components. Geometrical indices [τ5 = 0.32 and 0.30 for (I) (major component) and (II), respectively] suggest the zinc coordination in these phases to be distorted square pyramidal. This study forms part of our aim to discern the mechanism of metal binding in these chelators, their specificity and selectivity, and to gain insight into the role of cellular zinc in physiological processes such as infection, immunity and cancer. |
| format | Article |
| id | doaj-art-a70d4c4d478b43d89f24d4f74cf8aaff |
| institution | Kabale University |
| issn | 2056-9890 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | International Union of Crystallography |
| record_format | Article |
| series | Acta Crystallographica Section E: Crystallographic Communications |
| spelling | doaj-art-a70d4c4d478b43d89f24d4f74cf8aaff2025-08-20T03:30:28ZengInternational Union of CrystallographyActa Crystallographica Section E: Crystallographic Communications2056-98902025-07-0181763664110.1107/S2056989025005407hb8133Syntheses and structures of dinuclear zinc(II) acetate-bridged coordination compounds with the aromatic Schiff base chelators N,N-dimethyl-2-[phenyl(pyridin-2-yl)methylidene]hydrazine-1-carbothioamide and N-ethyl-2-[phenyl(pyridin-2-yl)methylidene]hydrazine-1-carbothioamideChristian S. Parry0Alex R. Abraham1Samuel K. Kwofie2Michael D. Wilson3Timothy R. Ramadhar4Raymond J. Butcher5Department of Microbiology, College of Medicine, Howard University, Washington, DC 20059, USADepartment of Chemistry, College of Arts and Science, Howard University, Washington, DC 20059, USADepartment of Biomedical Engineering, School of Engineering Sciences, College of Basic and Applied Sciences, University of Ghana, Legon, Accra, LG 77, GhanaDepartment of Parasitology, Noguchi Memorial Institute for Medical Research, College of Health Sciences, University of Ghana, Legon, Accra, LG 581, GhanaDepartment of Chemistry, College of Arts and Science, Howard University, Washington, DC 20059, USADepartment of Chemistry, College of Arts and Science, Howard University, Washington, DC 20059, USAIn the centrosymmetric title complexes, di-μ-acetato-bis({N,N-dimethyl-2-[phenyl(pyridin-2-yl)methylidene]hydrazine-1-carbothioamidato}zinc(II)), [Zn2(C15H15N4S)2(C2H3O2)2] (I), and di-μ-acetato-bis({N-ethyl-2-[phenyl(pyridin-2-yl)methylidene]hydrazine-1-carbothioamidato}zinc(II)), [Zn2(C16H17N4S)2(C2H3O2)2] (II), the zinc ions are chelated by the N,N,S-tridentate ligands and bridged by pairs of acetate ions. The acetate ion in (I) is disordered over two orientations in a 0.756 (6):0.244 (6) ratio, leading to different zinc coordination modes for the major (5-coordinate) and minor (6-coordinate) disorder components. Geometrical indices [τ5 = 0.32 and 0.30 for (I) (major component) and (II), respectively] suggest the zinc coordination in these phases to be distorted square pyramidal. This study forms part of our aim to discern the mechanism of metal binding in these chelators, their specificity and selectivity, and to gain insight into the role of cellular zinc in physiological processes such as infection, immunity and cancer.https://journals.iucr.org/paper?S2056989025005407crystal structuremobile zinclipophilicitymixed donor setcoordination chemistrycell biology |
| spellingShingle | Christian S. Parry Alex R. Abraham Samuel K. Kwofie Michael D. Wilson Timothy R. Ramadhar Raymond J. Butcher Syntheses and structures of dinuclear zinc(II) acetate-bridged coordination compounds with the aromatic Schiff base chelators N,N-dimethyl-2-[phenyl(pyridin-2-yl)methylidene]hydrazine-1-carbothioamide and N-ethyl-2-[phenyl(pyridin-2-yl)methylidene]hydrazine-1-carbothioamide Acta Crystallographica Section E: Crystallographic Communications crystal structure mobile zinc lipophilicity mixed donor set coordination chemistry cell biology |
| title | Syntheses and structures of dinuclear zinc(II) acetate-bridged coordination compounds with the aromatic Schiff base chelators N,N-dimethyl-2-[phenyl(pyridin-2-yl)methylidene]hydrazine-1-carbothioamide and N-ethyl-2-[phenyl(pyridin-2-yl)methylidene]hydrazine-1-carbothioamide |
| title_full | Syntheses and structures of dinuclear zinc(II) acetate-bridged coordination compounds with the aromatic Schiff base chelators N,N-dimethyl-2-[phenyl(pyridin-2-yl)methylidene]hydrazine-1-carbothioamide and N-ethyl-2-[phenyl(pyridin-2-yl)methylidene]hydrazine-1-carbothioamide |
| title_fullStr | Syntheses and structures of dinuclear zinc(II) acetate-bridged coordination compounds with the aromatic Schiff base chelators N,N-dimethyl-2-[phenyl(pyridin-2-yl)methylidene]hydrazine-1-carbothioamide and N-ethyl-2-[phenyl(pyridin-2-yl)methylidene]hydrazine-1-carbothioamide |
| title_full_unstemmed | Syntheses and structures of dinuclear zinc(II) acetate-bridged coordination compounds with the aromatic Schiff base chelators N,N-dimethyl-2-[phenyl(pyridin-2-yl)methylidene]hydrazine-1-carbothioamide and N-ethyl-2-[phenyl(pyridin-2-yl)methylidene]hydrazine-1-carbothioamide |
| title_short | Syntheses and structures of dinuclear zinc(II) acetate-bridged coordination compounds with the aromatic Schiff base chelators N,N-dimethyl-2-[phenyl(pyridin-2-yl)methylidene]hydrazine-1-carbothioamide and N-ethyl-2-[phenyl(pyridin-2-yl)methylidene]hydrazine-1-carbothioamide |
| title_sort | syntheses and structures of dinuclear zinc ii acetate bridged coordination compounds with the aromatic schiff base chelators n n dimethyl 2 phenyl pyridin 2 yl methylidene hydrazine 1 carbothioamide and n ethyl 2 phenyl pyridin 2 yl methylidene hydrazine 1 carbothioamide |
| topic | crystal structure mobile zinc lipophilicity mixed donor set coordination chemistry cell biology |
| url | https://journals.iucr.org/paper?S2056989025005407 |
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