In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called A porous metal-organic cage constructed from dirhodium paddle-wheels: synthesis, structure and catalysis, published in 2015, which mentions a compound: 67929-86-6, mainly applied to rhodium phenylenebisethynediyldibenzoate cage complex preparation structure cycloamination catalyst; crystal structure rhodium phenylenebisethynediyldibenzoate tetranuclear cage complex, Product Details of 67929-86-6.
Self-assembly of dirhodium(II) tetraacetate (Rh2(OAc)4) with a dicarboxylic acid 3,3′-(1,3-phenylenebis(ethyne-2,1-diyl))dibenzoic acid (H2pbeddb) gives rise to a metal-organic cage (MOC) containing Rh-Rh bonds with the formula of [Rh4(pbeddb)4(H2O)2(DMA)2] (MOC-Rh-1). Single-crystal x-ray diffraction anal. reveals that MOC-Rh-1 shows a lantern-type cage structure, in which a pair of Rh2(CO2)4 paddlewheels is linked by four diacid ligands. The dimensions of the inner cavity of MOC-Rh-1 are 9.5 × 14.8 Å2 (atom-to-atom distances across opposite metal and Ph groups of pbeddb2-). In the solid phase, the cages are aligned by π-π stacking to form one-dimensional channels (9.5 × 11.1 Å2) through cage windows. Therefore, the crystalline samples of MOC-Rh-1 are porous with the inner and outer cavities of the cages accessible under the heterogeneous condition. MOC-Rh-1 was fully characterized by EA, TGA, PXRD, IR, UV-visible and XPS measurements. The catalytic tests disclose that activated MOC-Rh-1 is effective in the intramol. C-H amination of vinyl, dienyl and biaryl azides, giving indoles, pyrroles and carbazoles, resp., and the porous catalyst can be recycled easily and used for at least nine runs without significant loss of activity. In the nine runs, the conversions were at 93-99%, whereas in the tenth run, the conversion was reduced to 78%.
《A porous metal-organic cage constructed from dirhodium paddle-wheels: synthesis, structure and catalysis》 provides a strategy for the preparation of materials with excellent comprehensive properties, which is conducive to broaden the application field of this compound(Methyl 5-methoxyindole-2-carboxylate)Product Details of 67929-86-6.
Reference:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem