103860-60-2Relevant articles and documents
Self-assembly of non-macrocyclic triangular Ni3Ln clusters
Dais, Tyson N.,Ishida, Takayuki,Plieger, Paul G.,Takano, Rina
, p. 1446 - 1453 (2022/02/03)
The synthesis and structural characterisation of four new heterometallic tetranuclear complexes is reported. Three L3Ni3Ln type complexes, where Ln = La (C1), Eu (C2), and Gd (C3), have been fully characterised including DC and AC magnetic measurements. A fourth complex featuring a diamagnetic BaII ion at its centre is also reported with structural characterisation. Structural elucidation showed that all four complexes successfully self-assembled from a stoichiometric mixture of the acyclic ligand, 1,4-diformylnaphthalene-2,3-diol, with nickel(ii) nitrate and the appropriate heavy metal salt to produce the same near planar Ni3MO12 core. Ferromagnetic interactions were found to dominate the ground state of C3, exhibiting a maximal spin ground state of 13/2. The exchange coupling is quantitatively discussed along with the nickel(ii) zero-field splitting effect. AC magnetic susceptibility experiments were carried out, but no frequency dependent signals were observed and thus no observable slow relaxation of magnetisation.
Structure-Activity Relationship Studies of Coumarin-like Diacid Derivatives as Human G Protein-Coupled Receptor-35 (hGPR35) Agonists and a Consequent New Design Principle
Wei, Lai,Hou, Tao,Li, Jiaqi,Zhang, Xiuli,Zhou, Han,Wang, Zhenyu,Cheng, Junxiang,Xiang, Kaijing,Wang, Jixia,Zhao, Yaopeng,Liang, Xinmiao
supporting information, p. 2634 - 2647 (2021/04/02)
A series of coumarin-like diacid derivatives were designed and synthesized as novel agonists of human G-protein-coupled receptor 35 (hGPR35). Active compounds were characterized to possess one acidic group on both sides of a fused tricyclic aromatic scaff
Self-assembly properties of Salamo-type trinuclear Cu(II) and Co(II) complexes based on the regulation of H+/OHˉ
Dong, Xiu-Yan,Wang, Bao-Jun,Kang, Quan-Peng,Dong, Wen-Kui
, (2018/04/30)
A novel naphthalenediol-based bis(salamo)-type tetraoxime compound (H4L) was designed and synthesized. Two new supramolecular complexes, [Cu3(L)(μ-OAc)2] and [Co3(L)(μ-OAc)2(MeOH)2]·4CHCl3 were synthesized by the reaction of H4L with Cu(II) acetate dihydrate and Co(II) acetate dihydrate, respectively, and were characterized by elemental analyses and X-ray crystallography. In the Cu(II) complex, Cu1 and Cu2 atoms located in the N2O2 sites, and are both penta-coordinated, and Cu3 atom is also penta-coordinated by five oxygen atoms. All the three Cu(II) atoms have geometries of slightly distorted tetragonal pyramid. In the Co(II) complex, Co1 and Co3 atoms located in the N2O2 sites, and are both penta-coordinated with geometries of slightly distorted triangular bipyramid and distorted tetragonal pyramid, respectively, while Co2 atom is hexa-coordinated by six oxygen atoms with a geometry of slightly distorted octahedron. These self-assembling complexes form different dimensional supramolecular structures through inter- and intra-molecular hydrogen bonds. The coordination bond cleavages of the two complexes have occurred upon the addition of the H+, and have reformed again via the neutralization effect of the OH?. The changes of the two complexes response to the H+/OH? have observed in the UV–Vis and 1H NMR spectra.
