Magnetoactive binuclear copper(II) complexes based on β-aminovinylimines
摘要:
beta-Aminovinylimines containing bulky substituents at the donor nitrogen atoms and copper(II) chelates based on them were synthesized. The compounds were studied by single crystal and powder X-ray diffraction, EXAFS, NMR, EPR, and UV/Vis spectroscopy, and magnetochemistry. The complexes with halide bridges exhibit a ferromagnetic type of spin-spin interaction. The metal chelate containing a phenyl substituent in the gamma-position of the aminovinylimino ligand absorbs atmospheric oxygen in a methylene dichloride solution, which gives rise to a dimer with oxygen bridges exhibiting an anti ferromagnetic type of spin-spin interaction.
The First β-Diketiminate−Ag(I) Complexes. Macrocyclic Dinuclear and Tetranuclear Ag(I)-Complexes and Linear Coordination Polymer Ag(I)-Complex
作者:Chizu Shimokawa、Shinobu Itoh
DOI:10.1021/ic0501014
日期:2005.5.1
Reactions of Ag(l) and a series of beta-diketiminate ligands have been investigated to demonstrate that unique macrocyclic dinuclear and tetranuclear Ag(l)-complexes and a linear coordination polymer Ag(l)-complex as well as oxidative C-C coupling dimer products of the ligands were obtained depending on the substituents on the carbon framework of beta-diketiminate ligands.