인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
DBpia AI
AI 에이전트
AI 아이디어
AI 리더
AI 뷰어
Citeasy
크롬 서지관리 다운로드
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
Reaction of chelating cationic germylene ligand [<sup>PhiP</sup>DipGe]<sup>+</sup> (1; <sup>PhiP</sup>Dip = {[Ph<sub>2</sub>PCH<sub>2</sub>Si(<sup>i</sup>Pr)<sub>2</sub>](Dip)N}; Dip = 2,6-<sup>i</sup>Pr<sub>2</sub>C<sub>6</sub>H<sub>3</sub>) with the NHC-stabilised Co<sup>0</sup> system [IPr·Co(η<sub>2</sub>-vtms)<sub>2</sub>] (IPr = [(H)CN(Dip)C:]; vtms = C<sub>2</sub>H<sub>3</sub>(SiMe<sub>3</sub>) gives ready access to the first example of an open-shell metallo-germylene in high yields, in T-shaped Co complex 2. The Co centre in 2 is found to have a low-spin d<sup>7</sup> electronic structure which bears a high-spin density of the single unpaired electron in this complex, corroborated by SQUID magnetometry, EPR spectroscopy, and quantum-chemical calculations. Detailed analysis of the electronic structure of 2 establishes the electron-sharing covalent nature of the germanium cobalt interaction. Still, the pathway to 2 is not trivial: at first glance, it seems as though complex 2 is formed <i>via</i> a simple insertion of Co<sup>0</sup> into the P-Ge bond in 1. However, modifying reaction conditions leads to the isolation of fragments of complex 2 (<i>viz</i>. 3, 4, and 5), all of which are fully characterised. It is ultimately found that these arise from the initial formation of dimeric germanium(i) species 7, formed by reduction of 1 by Co<sup>0</sup>. Depending on stoichiometry, 7 reacts with intermediary Co<sup>I</sup> species forming fragments 3-5, or the target cobalto-germylene 2. These results thus demonstrated that 2 is in fact formed <i>via</i> the homolytic metathesis of a Ge<sup>I</sup>-Ge<sup>I</sup> bond at Co<sup>I</sup>, so opening an unprecedented route to such metallo-tetrylenes.
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
최근 본 자료 전체보기
