東北大学 · Materials Science
마사히로 야마시타 교수의 연구실은 주로 희토류 원소를 포함한 금속 복합체의 합성 및 기능화를 중심으로, 고분자 중합 촉매, 단일 분자 자성체(SMM), 광학적 및 자기적 기능을 가진 포르피린형 유사체의 설계에 중점을 두고 있습니다. 특히, 희토류 금속을 이용한 고분자 중합 촉매와 단일 분자 자성체의 표면 상호작용에 관한 연구를 통해 나노스케일 자기소재 및 스핀트로닉스 응용을 탐색하고 있습니다. 또한, 광학적 스위칭 기능을 가진 리간드를 활용한 자기 이완 및 스핀 코어스 전이 현상 연구도 진행 중입니다.
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.
Organolanthanide complexes such as SmMe(C5Me5)2(THF) and [SmH(C5M5)2]2 initiate the living polymerizations of ε-caprolactone and δ-valerolactone to give high molecular weight polyesters (Mn > 70 000) with extremely narrow molecular weight distributions, Mw/Mn < 1.08, while these initiators are completely inert for the polymerization of β-propiolactone. In contrast to lanthanide alkyl complexes, lanthanide alkoxides such as SmOEt(C5Me5)2(OEt2), [YOMe(C5H5)2]2, and YOMe(C5Me5)2(THF) exhibit fairly
We report three self-assembled iron complexes that comprised an anti-parallel open form (o-L<sub>anti</sub> ), a parallel open form (o-L<sub>syn</sub> ), and a closed form (c-L) of diarylethene conformers. Under kinetic control, Fe<sup>II</sup> <sub>2</sub> (o-L<sub>anti</sub> )<sub>3</sub> was isolated, which exhibited a dinuclear structure with diamagnetic properties. Under light-irradiation control, Fe<sup>II</sup> <sub>2</sub> (c-L)<sub>3</sub> was prepared and exhibited paramagnetism and sp
The unique properties of natural tetrapyrrolic compounds have inspired the rapid growth of research interest in the design and synthesis of artificial porphyrinoids and their metal complexes as a basis of modern functional materials. A special role in the design of such materials is played by sandwich complexes formed by tetrapyrrolic macrocycles with rare earth elements, especially lanthanides. The development of synthetic approaches to the functionalization of tetrapyrrolic compounds and their
Since 2003, terbium(iii) bis-phthalocyaninato complexes have been recognised as acting as single molecule magnets (SMMs), propitiating multiple studies with the aim of better understanding the single metal-ion based magnetism with unusually high blocking temperatures. In the quest for novel applications, it became clear that if spintronic devices were made from SMM molecules, their confinement in the proximity of surfaces or electrodes would become difficult to circumvent. In this perspective ar
