以卤化物、酰胺和氢化物作为铝的进一步配体的哌啶烷结构研究

Michael Veith, Tatjana Kirs, Bernd Morgenstern, Volker Huch
{"title":"以卤化物、酰胺和氢化物作为铝的进一步配体的哌啶烷结构研究","authors":"Michael Veith, Tatjana Kirs, Bernd Morgenstern, Volker Huch","doi":"10.1002/zaac.202400090","DOIUrl":null,"url":null,"abstract":"Nine different derivatives of piperidino alanes of the general formula (CH2)5N‐AlXY [X=Y= Cl (1), Br (2), I (3); X= (CH2)5N, Y= Cl (4), Br (5), I (6); X=H, Y= Cl (7), Br (8), I (9)] have been synthesized and compared with respect to their structures. All molecules form dimers with an Al2N2 central cycle and aluminum and nitrogen atoms in distorted tetrahedral environments as determined from X‐ray diffraction. The three dihalide derivatives 1, 2 and 3 have C2h (2/m) symmetries in solution of which they maintain the Centro symmetry in the crystal lattice. The bis(piperidino) derivatives 4, 5 and 6 have either C1 (1) symmetry with the bridging piperidino cycles oriented in the same direction (4, 5) or Ci (ī) point symmetry as found for 6 (in solution at least one other isomer is present). Whereas the chlorine derivative 7 has crystallographic Ci (ī) symmetry, the bromine 8 has almost C2 and the iodine 9 crystallographic C2 (2) point symmetry. In solution all derivatives 7, 8, 9 show equilibria between cis (C2) and trans (Ci) isomeric forms (27Al NMR). The longest Al‐N bond lengths within the rings are found for 5 (1.969(4) Å) and the shortest for 8 (1.940(4) Å).","PeriodicalId":23934,"journal":{"name":"Zeitschrift für anorganische und allgemeine Chemie","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Structural Studies of Piperidino‐Alanes with Halide, Amide and Hydride as further Ligands at Aluminum\",\"authors\":\"Michael Veith, Tatjana Kirs, Bernd Morgenstern, Volker Huch\",\"doi\":\"10.1002/zaac.202400090\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Nine different derivatives of piperidino alanes of the general formula (CH2)5N‐AlXY [X=Y= Cl (1), Br (2), I (3); X= (CH2)5N, Y= Cl (4), Br (5), I (6); X=H, Y= Cl (7), Br (8), I (9)] have been synthesized and compared with respect to their structures. All molecules form dimers with an Al2N2 central cycle and aluminum and nitrogen atoms in distorted tetrahedral environments as determined from X‐ray diffraction. The three dihalide derivatives 1, 2 and 3 have C2h (2/m) symmetries in solution of which they maintain the Centro symmetry in the crystal lattice. The bis(piperidino) derivatives 4, 5 and 6 have either C1 (1) symmetry with the bridging piperidino cycles oriented in the same direction (4, 5) or Ci (ī) point symmetry as found for 6 (in solution at least one other isomer is present). Whereas the chlorine derivative 7 has crystallographic Ci (ī) symmetry, the bromine 8 has almost C2 and the iodine 9 crystallographic C2 (2) point symmetry. In solution all derivatives 7, 8, 9 show equilibria between cis (C2) and trans (Ci) isomeric forms (27Al NMR). The longest Al‐N bond lengths within the rings are found for 5 (1.969(4) Å) and the shortest for 8 (1.940(4) Å).\",\"PeriodicalId\":23934,\"journal\":{\"name\":\"Zeitschrift für anorganische und allgemeine Chemie\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-07-22\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Zeitschrift für anorganische und allgemeine Chemie\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1002/zaac.202400090\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Zeitschrift für anorganische und allgemeine Chemie","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1002/zaac.202400090","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

摘要

我们合成了通式为 (CH2)5N-AlXY [X=Y= Cl (1)、Br (2)、I (3);X= (CH2)5N,Y= Cl (4)、Br (5)、I (6);X=H,Y= Cl (7)、Br (8)、I (9)]的九种不同的哌啶烷衍生物,并对它们的结构进行了比较。根据 X 射线衍射测定,所有分子都形成二聚体,具有 Al2N2 中心循环,铝原子和氮原子处于扭曲的四面体环境中。三种二卤化物衍生物 1、2 和 3 在溶液中具有 C2h (2/m) 对称性,它们在晶格中保持了 Centro 对称性。双(哌啶基)衍生物 4、5 和 6 要么具有 C1 (1) 对称性,桥接的哌啶基循环方向相同(4、5),要么像 6 一样具有 Ci (ī) 点对称性(在溶液中至少存在另一种异构体)。氯衍生物 7 具有晶体学上的 Ci (ī) 点对称性,溴衍生物 8 几乎具有 C2 点对称性,碘衍生物 9 具有晶体学上的 C2 (2) 点对称性。在溶液中,所有衍生物 7、8 和 9 都显示出顺式(C2)和反式(Ci)异构体之间的平衡(27Al NMR)。环内 Al-N 键长度最长的是 5(1.969(4) Å),最短的是 8(1.940(4) Å)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
Structural Studies of Piperidino‐Alanes with Halide, Amide and Hydride as further Ligands at Aluminum
Nine different derivatives of piperidino alanes of the general formula (CH2)5N‐AlXY [X=Y= Cl (1), Br (2), I (3); X= (CH2)5N, Y= Cl (4), Br (5), I (6); X=H, Y= Cl (7), Br (8), I (9)] have been synthesized and compared with respect to their structures. All molecules form dimers with an Al2N2 central cycle and aluminum and nitrogen atoms in distorted tetrahedral environments as determined from X‐ray diffraction. The three dihalide derivatives 1, 2 and 3 have C2h (2/m) symmetries in solution of which they maintain the Centro symmetry in the crystal lattice. The bis(piperidino) derivatives 4, 5 and 6 have either C1 (1) symmetry with the bridging piperidino cycles oriented in the same direction (4, 5) or Ci (ī) point symmetry as found for 6 (in solution at least one other isomer is present). Whereas the chlorine derivative 7 has crystallographic Ci (ī) symmetry, the bromine 8 has almost C2 and the iodine 9 crystallographic C2 (2) point symmetry. In solution all derivatives 7, 8, 9 show equilibria between cis (C2) and trans (Ci) isomeric forms (27Al NMR). The longest Al‐N bond lengths within the rings are found for 5 (1.969(4) Å) and the shortest for 8 (1.940(4) Å).
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
自引率
0.00%
发文量
0
期刊最新文献
Oxygen redox activity in battery cathodes and the role of underbonded oxygen High‐Pressure Synthesis and Crystal Structure of the Inoborate Ni[B2O2(OH)4] Synthesis and Single Crystal X‐ray Characterization of [Sn5Bi3]3− Chiral Homodinuclear Dysprosium Macrocyclic Complexes with Single‐molecule Magnetic Behaviours From tin(II) to tin(IV): Following solid‐liquid reactions by microscopy
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1