Structure and magnetic characterization of some bicompartmental [N 6 O 2 ] divalent metal( ii ) complexes using bis(phenolato) ligands bearing two pendant bis(pyridyl) amine arms
Structure and magnetic characterization of some bicompartmental [N 6 O 2 ] divalent metal( ii ) complexes using bis(phenolato) ligands bearing two pendant bis(pyridyl) amine arms
复制标题
使用带有两个双（吡啶基）胺臂的双（酚）配体的一些双室[N 6 O 2 ]二价金属（ii）配合物的结构和磁性表征
DOI：
10.1039/d3nj02380j
复制
发表时间：
2023
影响因子：
3.3
通讯作者：
Louka, Febee R.
中科院分区：
文献类型：
--
作者：
Mautner, Franz A.;Fischer, Roland C.;Torvisco, Ana;Nakashima, Kai;Handa, Makoto;Mikuriya, Masahiro;Salem, Nahed M.;Overby, Gabriel J.;Maier, Madison R.;Louka, Febee R.
双室双（酚）化合物6,6′-亚甲基双（2-（双（吡啶-2-甲基）氨基）-4-氯苯酚）半水合（H2L½H2O）与三维金属（II）离子反应，得到了结构完整表征的新型桥接乙酰双核配合物[Mn2(HL)(μ1,2-OAc) (H2O)0.75(MeOH)0.25](PF6)2·0.45(H2O)(5)和[Cd2(HL)(μ1,1,2-OAc)(OAc)(H2O))]PF6·H2O(6)以及聚合物桥接-叠氮四核链-[Cu4(HL)2(μ1,1- n3)2(μ1,3- n3)2](NO3)2·5H2O(4)。对配合物[Cu4(HL)2(ClO4)3(H2O)5](ClO4)3·5H2O(2)进行了部分表征。此外，还分离到3个双核配合物[Cu2(H2L)(NO3)2(H2O)2](NO3)2(3)、[Cu2(HL)(OAc)(CH3OH)](PF6)2(7)和[Cu2(HL)(NCS)2]NO3·2H2O(8)]。通过CHN元素分析、IR和UV-Vis光谱、ESI-MS、电导率测量和x射线单晶晶体学对化合物1、4、5和6进行了表征，其中双（酚）配体表现出不同的去质子化（H2L、HL−和L2−）。在2 - 300 K温度范围内的磁化率测量表明，二锰（II） 1中的反铁磁耦合非常弱（J = - 1.64(1) cm−1），而二铜（II） 2中的磁相互作用几乎可以忽略不计（J = 0(3) cm−1）。在叠氮络合物-[Cu4(HL)2(μ1,1- n3)2(μ1,3- n3)2](NO3)2·5H2O(4)配合物中，通过di μ1,3- n3桥接的diccopper （II）单元进行中强反铁磁耦合，得到了−133(3)cm−1的J值，而di μ1,1- n3桥接单元中的两个铜（II）离子之间没有磁相互作用。
Reactions of the bicompartmental bis(phenolato) compound 6,6′-methylenebis(2-((bis(pyridin-2-ylmethyl)amino)methyl)-4-chlorophenol)hemihydrate (H2L ½H2O) with 3d metal(II) ions afforded novel fully structurally characterized bridged acetato dinuclear complexes [Mn2(HL)(μ1,2-OAc)2]PF6 (1) [Zn2(HL)(μ1,2-OAc)(H2O)0.75(MeOH)0.25](PF6)2·0.45(H2O) (5) and [Cd2(HL)(μ1,1,2-OAc)(OAc)(H2O)]PF6·H2O (6) as well as the polymeric bridged-azido tetranuclear catena-[Cu4(HL)2(μ1,1-N3)2(μ1,3-N3)2](NO3)2·5H2O (4). The complex [Cu4(HL)2(ClO4)3(H2O)5](ClO4)3·5H2O (2) was partially characterized. In addition, three more dinuclear complexes [Cu2(H2L)(NO3)2(H2O)2](NO3)2 (3), [Cu2(HL)(OAc)(CH3OH)](PF6)2 (7) and [Cu2(HL)(NCS)2]NO3·2H2O (8) were also isolated. All complexes were characterized by CHN elemental analysis, IR and UV-Vis spectroscopy, ESI-MS, conductivity measurements and X-ray single crystal crystallography for compounds 1, 4, 5 and 6, where the bis(phenolato) ligand displayed different deprotonation (H2L, HL− and L2−). The magnetic susceptibility measurements over the temperature range 2–300 K revealed very weak antiferromagnetic coupling in dimanganese(II) 1 (J = −1.64(1) cm−1) and almost negligible magnetic interaction in dicopper(II) 2 (J = 0(3) cm−1). In the azido catena-[Cu4(HL)2(μ1,1-N3)2(μ1,3-N3)2](NO3)2·5H2O (4) complex, the J value of −133(3) cm−1 was obtained upon moderate-to-strong antiferromagnetic coupling through the di-μ1,3-N3-bridged dicopper(II) unit with no magnetic interaction between the two copper(II) ions in the di-μ1,1-N3-bridged unit.