Pilichos Evangelos, Font-Bardia Mercè, Cano Joan, Escuer Albert, Mayans Júlia
Departament de Química Inorgànica i Orgànica, Secció Inorgànica and Institute of Nanoscience (IN2UB) and Nanotecnology, Universitat de Barcelona, Marti i Franques 1-11, Barcelona-08028, Spain.
Departament de Mineralogia, Cristal lografia i Dipòsits Minerals and Unitat de Difracció de R-X, Centre Científic i Tecnològic de la Universitat de Barcelona (CCiTUB), Universitat de Barcelona, Solé i Sabarís 1-3, 08028 Barcelona, Spain.
Dalton Trans. 2022 Jun 13;51(23):8986-8993. doi: 10.1039/d2dt00880g.
A new family of magnetically mononuclear cobalt(II) complexes with formula {Ni(L)Co(HO)(MeOH)}{Ni(L)} where HL1 = bis(,'-bis(3-methoxysalicylidene)ethylene-1,2-diamine) (1), HL2 = bis(,'-bis(3-methoxysalicylidene)propane-1,2-diamine) (2) and {Cu(L4)}Co (3) where HL4 = bis(,'-bis(3-ethoxysalicylidene)cyclohexane-1,2-diamine) have been obtained employing non chiral or enantiomerically pure Schiff bases. The structural studies have been carried out by single crystal X-ray and powder diffraction. Dynamic magnetic studies indicate that some members of this family present field induced slow relaxation of the magnetization and its response has been compared with the magnetically diluted [ZnCo] complex 1D. Ultra-low frequency Raman spectroscopy has been used to relate the slow relaxation with lattice vibrations.
通过使用非手性或对映体纯的席夫碱，已获得了一个新的磁性单核钴（II）配合物家族，其化学式为{Ni(L)Co(HO)(MeOH)}{Ni(L)}，其中HL1 = 双（,'-双（3-甲氧基水杨醛）乙烯-1,2-二胺）（1），HL2 = 双（,'-双（3-甲氧基水杨醛）丙烷-1,2-二胺）（2），以及{Cu(L4)}Co（3），其中HL4 = 双（,'-双（3-乙氧基水杨醛）环己烷-1,2-二胺）。结构研究通过单晶X射线和粉末衍射进行。动态磁性研究表明，该家族的一些成员呈现出磁场诱导的磁化缓慢弛豫，并且已将其响应与磁性稀释的[ZnCo]配合物1D进行了比较。超低频拉曼光谱已被用于将缓慢弛豫与晶格振动联系起来。
