molecular structures in their crystalline states were determined by X-ray diffraction to be 1 ⋅ (H2 O)2 , 1 ⋅ (MeCN)2 , 2 ⋅ (MeCN)2 , and 3 ⋅ (DMF)2 , which were coordinated with the crystallization solvent at the axial positions. Among these, the crystal packing of 1 ⋅ (H2 O)2 , 1 ⋅ (MeCN)2 , and 3 ⋅ (DMF)2 revealed the formation of one-dimensional stacked chains nearly along the axial direction and
通过使Rh2(OAc)4分别与
愈创木烯-2-
羧酸,azulene-2-
羧酸和azulene-1-
羧酸反应,得到具有以azulene部分为赤道
配体的
铑双核配合物(1-3)。通过X射线衍射确定其晶体状态的分子结构为1⋅(H2 O)2、1⋅(MeCN)2、2⋅(MeCN)2和3⋅(
DMF)2,它们与轴向位置的结晶溶剂。其中,1⋅(H2 O)2、1⋅(MeCN)2和3⋅(
DMF)2的晶体堆积显示出几乎沿轴向方向形成一维堆积链和二维堆积片材沿赤道方向。此外,发现1⋅(H2 O)2包含可吸附
CO2的空腔,从而引起结构变化。此外,氧化还原测量揭示了这些配合物的逐步单电子氧化还原行为,表明了z烯单元之间的分子内相互作用。此外,瞬态吸收测量表明存在由于
铑的重原子效应而导致的超快速系统间交叉,并且由于
三氮烯配体之间的能量迁移而延长了三重态的寿命。