Structural Diversity in a New Series of Halogenated Quinolyl Salicylaldimides-Based Fe<sup>III</sup> Complexes Showing Solid-State Halogen-Bonding/Halogen···Halogen Interactions
作者:Suchithra Ashoka Sahadevan、Enzo Cadoni、Noemi Monni、Cristina Sáenz de Pipaón、José-Ramon Galan Mascaros、Alexandre Abhervé、Narcis Avarvari、Luciano Marchiò、Massimiliano Arca、Maria Laura Mercuri
DOI:10.1021/acs.cgd.8b00753
日期:2018.7.5
mediated by the alkoxy bridges. 2b and 3b show the same magnetic behavior since they contains analogous bridges between paramagnetic centers, but for a linear tetramer. Density functional theory (DFT) calculations, based on hybrid functional mPW1PW paralleled by the Def2SVP all-electron split-valence basis sets, support the experimental results, showing that monomers could possibly show a spin crossover
新系列的三齿N -8-喹啉基-水杨醛亚胺配体Hqsal-5,7-X 2 [X = Cl(1),Br(2),I(3)],在5,7位上被卤素取代合成了氨基喹啉部分的一部分及其与Fe III的配合物,并配制为[Fe(qsal-5,7-X 2)(NCS)(MeO)] 2 ·solv。(X =氯(1A),溴(图2a),I(图3a,SOLV = 1 / 2的MeOH),[铁4(qsal -5,7--X 2)4(NCS)2(MEO)2 ]·SOLV 。(X = Br(2b),I(3b; solv = 4CH 2 Cl 2))通过单晶X射线衍射分析。1a和2a是同构二聚体,其中每个Fe III金属离子(显示扭曲的八面体环境)都由N,N,O三齿形(qsal-5,7-X 2)-(X = Cl和Br)配体结合, N配位的SCN –阴离子,和桥接的甲醇盐阴离子。2b和3b是中心对称四聚体,其中每个Fe III均由三个齿状三齿(qsal-5