synthesized. The crystal structure of [Cu6-tmen] has been determined by single-crystal X-ray diffraction. The structure consists of cationic [Cu(tmen)(H2O)]2[Cu(tmen)]2[Cu2L](H2O)}4+ hexanuclear units. The hexanuclear cation is made up of two symmetry-related oxamato-bridged trinuclear units connected through the central carbon atom C(6) of the L8– ligand. Variable-temperature magnetic susceptibility measurements
式 [Cu(tmen)(
H2O)]2[Cu(tmen)]2[Cu2L]( )}(
ClO4)4 · 2 [Cu6-tmen] [Cu( pmdien)]4[Cu2L]}( )4 · 4 [Cu6-pmdien] 和 [Ni(cyclam)]4[Cu2L]}( )4 · 4 [Cu2Ni4-cyclam] [H8L = tetrakis(
氨基亚甲基)
甲烷四(
草氨酸),tmen = N,N,N',N'-
四甲基乙二胺,pmdien = N,N,N',N',N"-五甲基
二亚乙基三胺,并且环菌素 =
1,4,8,11-四氮杂环十四烷]已合成。[Cu6-tmen] 的晶体结构已通过单晶 X 射线衍射确定。该结构由阳离子 [Cu(tmen)( )]2[Cu(tmen)]2[Cu2L]( )}4+ 六核单元组成。六核阳离子由通过 L8–
配体的中心碳原子