Substituent-Induced Control of fac/mer Isomerism in Azine-NHC Fe(II) Complexes

IF 3.3 Q2 CHEMISTRY, MULTIDISCIPLINARY
Ulises Carrillo, Antonio Francés-Monerris, Anil Reddy Marri, Cristina Cebrián* and Philippe C. Gros*, 
{"title":"Substituent-Induced Control of fac/mer Isomerism in Azine-NHC Fe(II) Complexes","authors":"Ulises Carrillo,&nbsp;Antonio Francés-Monerris,&nbsp;Anil Reddy Marri,&nbsp;Cristina Cebrián* and Philippe C. Gros*,&nbsp;","doi":"10.1021/acsorginorgau.2c00038","DOIUrl":null,"url":null,"abstract":"<p >The stereoselective synthesis of geometrical iron(II) complexes bearing azine-NHC ligands is described. Facial and meridional selectivity is achieved as a function of the steric demand of the azine unit, with no remarkable influence of the carbene nature. More specifically, meridional complexes are obtained upon selecting bulky 5-mesityl-substituted pyridyl coordinating units. Unexpectedly, increase of the steric hindrance in the α position with respect to the N coordinating atom results in an exclusive facial configuration, which is in stark contrast to the meridional selectivity induced by other reported α-substituted bidentate ligands. Investigation of the structure and the optical and electrochemical properties of the here-described complexes has revealed the non-negligible effect of the <i>fac</i>/<i>mer</i> ligand configuration around the metal center.</p>","PeriodicalId":29797,"journal":{"name":"ACS Organic & Inorganic Au","volume":null,"pages":null},"PeriodicalIF":3.3000,"publicationDate":"2022-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acsorginorgau.2c00038","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Organic & Inorganic Au","FirstCategoryId":"1085","ListUrlMain":"https://pubs.acs.org/doi/10.1021/acsorginorgau.2c00038","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0

Abstract

The stereoselective synthesis of geometrical iron(II) complexes bearing azine-NHC ligands is described. Facial and meridional selectivity is achieved as a function of the steric demand of the azine unit, with no remarkable influence of the carbene nature. More specifically, meridional complexes are obtained upon selecting bulky 5-mesityl-substituted pyridyl coordinating units. Unexpectedly, increase of the steric hindrance in the α position with respect to the N coordinating atom results in an exclusive facial configuration, which is in stark contrast to the meridional selectivity induced by other reported α-substituted bidentate ligands. Investigation of the structure and the optical and electrochemical properties of the here-described complexes has revealed the non-negligible effect of the fac/mer ligand configuration around the metal center.

Abstract Image

取代基诱导的氮- nhc铁(II)配合物的面/聚异构控制
本文报道了带有氮杂氮NHC配体的几何铁(II)配合物的立体选择性合成。面选择性和经向选择性是根据嗪单元的空间需求实现的,而不受卡宾性质的显著影响。更具体地,经向配合物是通过选择体积庞大的5-甲基取代吡啶基配位单元而获得的。出乎意料的是,相对于N配位原子,α位置的空间位阻的增加导致了排他性的面构型,这与其他报道的α-取代的双齿配体诱导的经向选择性形成了鲜明对比。对本文所述配合物的结构、光学和电化学性质的研究揭示了金属中心周围fac/mer配体构型的不可忽略的影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
ACS Organic & Inorganic Au
ACS Organic & Inorganic Au 有机化学、无机化学-
CiteScore
4.10
自引率
0.00%
发文量
0
期刊介绍: ACS Organic & Inorganic Au is an open access journal that publishes original experimental and theoretical/computational studies on organic organometallic inorganic crystal growth and engineering and organic process chemistry. Short letters comprehensive articles reviews and perspectives are welcome on topics that include:Organic chemistry Organometallic chemistry Inorganic Chemistry and Organic Process Chemistry.
文献相关原料
公司名称 产品信息 采购帮参考价格
×
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
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
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 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信