Dinitrogen fixation with low-valent iron and cobalt complexes bearing phosphinidenides

含磷酰亚胺的低价铁和钴络合物的二氮固定

• 批准号: 503904467
• 负责人: Dr. Luong Phong Ho
• 金额: --
• 依托单位国家: 德国
• 项目类别: WBP Position
• 财政年份: 2022
• 资助国家: 德国
• 起止时间: 2021-12-31 至 无数据
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/503904467?language=en
• 关键词: Dinitrogen; fixation; low; valent; iron

The general strategy for this project involves the use of NHC/CAAC-phosphinidenes and NHC/CAAC-phosphinidenidesfor the synthesis of iron and cobalt complexes and the subsequent examination of their abilities to fixate dinitrogen under reductive conditions. By merging the expertise of the applicant in NHC-main group element chemistry with the experience of the host institution in iron- and cobalt-chemistry, the isolation of several novel complexes are envisaged. Especially the N2 activation with di- or- tri-nuclear complexes can be regarded as the main target of this investigation. Despite the recent popularity of NHC-phosphinidenes and NHC-phosphinidenides, only few corresponding iron or cobalt complexes were established. Furthermore, the fact that many dinitrogen-iron and -cobalt complexes rely on phosphane based ligands, the investigation of such phosphinidene or phosphinidenide based complexes regarding the change of activity is certainly of interest. In analogy to the (NHC)P– ligand, related CAAC ligands can also be used, since (CAAC)P– ligands in transition metal complexes are not reported yet. The work program is formulated along the following objectives: -Synthesis and characterization of NHC/CAAC-phosphinidenes as ligands as well as transfer reagents for the NHC/CAAC-phosphinidenide moieties -Synthesis and characterization of low valent iron- and cobalt-complexes bearing NHC/CAAC-phosphinidene and -phosphinidenide ligands -Investigation of these complexes regarding dinitrogen fixation and dinitrogen activation under reductive conditions -Investigation of the potential dinitrogen complexes regarding ammonia and N–C/Si bond formation.

该项目的一般策略涉及使用NHC/CAAC-磷酸烯和NHC/CAAC-Chosphinidenides，用于合成铁和钴络合物，以及随后检查其在还原条件下固定Dinitrogen的能力。 NHC-MAIN群体在铁和钴化学中的寄托学尤其是di-或三核复合物的N2激活。建立了磷酸化的事实。由于尚未沿着以下目标制定了过渡金属配合物中的（CAAC）配体（CAAC）配体。 - 具有NHC /CAAC-磷化物和 - 磷酸化的配体的低度瓦伦铁和钴复合物的伴生和表征 - 这些复合物在二氮固定和Dinitorent of Dinitoregent contive ctive ctigative contigation dinitrogentigation -dinitoregent contigative contigation -Intogention -dinitoregent contigation -dinitoregent contigation -n -c /c /c /c /c /c /ch SI键形成。