Discrete Supramolecular Stacks Based on Multinuclear Tweezer- Type Rhodium Complexes
GX, Guo BB, Azam M, AlResayes SI, Lin YJ, YJ, Jin . 2020
: By taking advantage of self-complementary p–p stacking and CH–p interactions, a series of discrete quadruple stacks were constructed through the self-aggregation of U-shaped dirhodium metallotweezer complexes featuring various planar polyaromatic ligands. By altering the conjugate stacking strength and bridging ligands, assemblies with a range of topologies were obtained, including a binuclear D-shaped macrocycle, tetranuclear open-ended cagelike frameworks, and duplex metallotweezer stacking structures. Furthermore, a rare stacking interaction resulting in selective C@H activation was observed during the self-assembly process of these elaborate architecture
Herein, two metal–organic frameworks (MOFs), [Co4(μ3-OH)2(L)(BTB)2(H2O)3]·5.6H2O (1) and
[Cd3(L)2(BTB)2(μ2-H2O)]·7.4H2O (2), based on 1,3-di(1H-imidazol-4-yl)benzene (L) and 1,3,5-tri(4-…