Kasai Kayoko, Fujita Makoto
Miyagi University of Education, 149 Aoba, Aramaki, 980-0845 Sendai, Japan.
Chemistry. 2007;13(11):3089-105. doi: 10.1002/chem.200501067.
Guest-dependent flexible coordination networks are formed from 1,4-bis(4-pyridylmethyl)tetrafluorobenzene (bpf), 4,4'-bis(4-pyridylmethyl)octafluorobiphenyl (bpfb), 2,6-bis(4-pyridylmethyl)hexafluoronaphthalene (2,6-bpfn), and 2,7-bis(4-pyridylmethyl)hexafluoronaphthalene (2,7-bpfn) with Cd(NO3)2 in the presence of various organic compounds. The reaction of bpf affords one-dimensional cyclic chains, two-dimensional rhombus grid sheets, and three-dimensional diamond frameworks with threefold interpenetration. The reaction of bpfb mainly affords two-dimensional rhombus grid sheets with twofold parallel interpenetration. The reaction of 2,6-bpfn affords a one-dimensional ladder and two-dimensional rhombus grid, twisted grid, and herringbone sheets. The reaction of 2,7-bpfn affords two-dimensional rhombus grid sheets and grid sheets with dumbbell-shaped cavities. This diversity of network topologies is induced by interactions between the guest molecules and the flexible ligand frameworks.
在各种有机化合物存在的情况下，客体依赖的柔性配位网络由1,4-双(4-吡啶基甲基)四氟苯(bpf)、4,4'-双(4-吡啶基甲基)八氟联苯(bpfb)、2,6-双(4-吡啶基甲基)六氟萘(2,6-bpfn)和2,7-双(4-吡啶基甲基)六氟萘(2,7-bpfn)与硝酸镉反应形成。bpf的反应产生一维环状链、二维菱形网格片和具有三重互穿的三维金刚石骨架。bpfb的反应主要产生具有双重平行互穿的二维菱形网格片。2,6-bpfn的反应产生一维梯状结构以及二维菱形网格、扭曲网格和人字形片。2,7-bpfn的反应产生二维菱形网格片和具有哑铃形空腔的网格片。这种网络拓扑结构的多样性是由客体分子与柔性配体骨架之间的相互作用引起的。
