{"title":"两种六配位三足苯并咪唑镍配合物的合成、晶体结构和磁性研究","authors":"Yuhang He, Jingwen Chen, Xinran Yu, Hongming Kao, Jing Chen","doi":"10.1134/S0036023622080162","DOIUrl":null,"url":null,"abstract":"<p>Herein, two nickel(II) complexes [Ni(ntb)(chdc)(CH<sub>3</sub>OH)]⋅CH<sub>3</sub>OH⋅3.5H<sub>2</sub>O (<b>1</b>) and [Ni<sub>2</sub>(ntb)<sub>2</sub>(btc)(CH<sub>3</sub>OH)R]⋅Cl⋅4CH<sub>3</sub>OH⋅H<sub>2</sub>O (<b>2</b>) (chdc is <i>trans</i>-1,4-cyclohexanedicarboxylate, btc is 1,3,5-benzenetricarboxylate, ntb is tris(2-benzimidazolylmethyl)amine, R = CH<sub>3</sub>OH/H<sub>2</sub>O) containing tetradentate poly-benzimidazole ligand have been synthesized and characterized by FT-IR spectroscopy, UV-Vis spectroscopy, elemental analysis, single‑crystal X‑ray diffraction, and magnetic analysis. X-ray crystallographic analysis shows that the Ni(II) ions in <b>1</b> and <b>2</b> have distorted octahedral geometries with four nitrogen atoms of ntb, one oxygen atom of carboxylate and one oxygen atom of H<sub>2</sub>O or CH<sub>3</sub>OH. Complex <b>1</b> is mononuclear with <i>trans</i>-1,4-cyclohexanedicarboxylate coordinated by Ni(II) in monodentate bonding fashion, and complex <b>2</b> consists of 1,3,5-benzenetricarboxylato-bridged nickel(II) centers in bis(monodentate) bonding mode. Hydrogen bonds and π–π interactions are important in stabilization of the crystal structures. The variable temperature magnetic susceptibilities of complexes <b>1</b> and <b>2</b> indicate that there are antiferromagnetic interactions.</p>","PeriodicalId":762,"journal":{"name":"Russian Journal of Inorganic Chemistry","volume":"67 8","pages":"1264 - 1273"},"PeriodicalIF":1.8000,"publicationDate":"2022-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Synthesis, Crystal Structures, and Magnetic Studies of Two Six-Coordinate Nickel(II) Complexes with Tripodal Benzimidazole Ligands\",\"authors\":\"Yuhang He, Jingwen Chen, Xinran Yu, Hongming Kao, Jing Chen\",\"doi\":\"10.1134/S0036023622080162\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Herein, two nickel(II) complexes [Ni(ntb)(chdc)(CH<sub>3</sub>OH)]⋅CH<sub>3</sub>OH⋅3.5H<sub>2</sub>O (<b>1</b>) and [Ni<sub>2</sub>(ntb)<sub>2</sub>(btc)(CH<sub>3</sub>OH)R]⋅Cl⋅4CH<sub>3</sub>OH⋅H<sub>2</sub>O (<b>2</b>) (chdc is <i>trans</i>-1,4-cyclohexanedicarboxylate, btc is 1,3,5-benzenetricarboxylate, ntb is tris(2-benzimidazolylmethyl)amine, R = CH<sub>3</sub>OH/H<sub>2</sub>O) containing tetradentate poly-benzimidazole ligand have been synthesized and characterized by FT-IR spectroscopy, UV-Vis spectroscopy, elemental analysis, single‑crystal X‑ray diffraction, and magnetic analysis. X-ray crystallographic analysis shows that the Ni(II) ions in <b>1</b> and <b>2</b> have distorted octahedral geometries with four nitrogen atoms of ntb, one oxygen atom of carboxylate and one oxygen atom of H<sub>2</sub>O or CH<sub>3</sub>OH. Complex <b>1</b> is mononuclear with <i>trans</i>-1,4-cyclohexanedicarboxylate coordinated by Ni(II) in monodentate bonding fashion, and complex <b>2</b> consists of 1,3,5-benzenetricarboxylato-bridged nickel(II) centers in bis(monodentate) bonding mode. Hydrogen bonds and π–π interactions are important in stabilization of the crystal structures. The variable temperature magnetic susceptibilities of complexes <b>1</b> and <b>2</b> indicate that there are antiferromagnetic interactions.</p>\",\"PeriodicalId\":762,\"journal\":{\"name\":\"Russian Journal of Inorganic Chemistry\",\"volume\":\"67 8\",\"pages\":\"1264 - 1273\"},\"PeriodicalIF\":1.8000,\"publicationDate\":\"2022-06-13\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Russian Journal of Inorganic Chemistry\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://link.springer.com/article/10.1134/S0036023622080162\",\"RegionNum\":3,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CHEMISTRY, INORGANIC & NUCLEAR\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Russian Journal of Inorganic Chemistry","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1134/S0036023622080162","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}
Synthesis, Crystal Structures, and Magnetic Studies of Two Six-Coordinate Nickel(II) Complexes with Tripodal Benzimidazole Ligands
Herein, two nickel(II) complexes [Ni(ntb)(chdc)(CH3OH)]⋅CH3OH⋅3.5H2O (1) and [Ni2(ntb)2(btc)(CH3OH)R]⋅Cl⋅4CH3OH⋅H2O (2) (chdc is trans-1,4-cyclohexanedicarboxylate, btc is 1,3,5-benzenetricarboxylate, ntb is tris(2-benzimidazolylmethyl)amine, R = CH3OH/H2O) containing tetradentate poly-benzimidazole ligand have been synthesized and characterized by FT-IR spectroscopy, UV-Vis spectroscopy, elemental analysis, single‑crystal X‑ray diffraction, and magnetic analysis. X-ray crystallographic analysis shows that the Ni(II) ions in 1 and 2 have distorted octahedral geometries with four nitrogen atoms of ntb, one oxygen atom of carboxylate and one oxygen atom of H2O or CH3OH. Complex 1 is mononuclear with trans-1,4-cyclohexanedicarboxylate coordinated by Ni(II) in monodentate bonding fashion, and complex 2 consists of 1,3,5-benzenetricarboxylato-bridged nickel(II) centers in bis(monodentate) bonding mode. Hydrogen bonds and π–π interactions are important in stabilization of the crystal structures. The variable temperature magnetic susceptibilities of complexes 1 and 2 indicate that there are antiferromagnetic interactions.
期刊介绍：
Russian Journal of Inorganic Chemistry is a monthly periodical that covers the following topics of research: the synthesis and properties of inorganic compounds, coordination compounds, physicochemical analysis of inorganic systems, theoretical inorganic chemistry, physical methods of investigation, chemistry of solutions, inorganic materials, and nanomaterials.
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