Sakata, Yoko published the artcileMetallonanobelt: A Kinetically Stable Shape-Persistent Molecular Belt Prepared by Reversible Self-Assembly Processes, Computed Properties of 68569-14-2, the publication is Inorganic Chemistry (2018), 57(24), 15500-15506, database is CAplus and MEDLINE.
A triptycene-based shape-persistent belt-shaped macrocycle, metallonanobelt, was synthesized by the self-assembly of 2,3,6,7-tetraaminotriptycene L and square planar Pd2+. The pentamer was selectively formed by the complexation of L with Pd2+ in the presence of the pillar[6]arene derivative P6 having triethylene glycol pendant as a template, whereas a mixture of a trimer, tetramer, and pentamer was obtained in the absence of the template. The pentamer was successfully isolated based on the solubility difference between the metallonanobelt and the template. Also the isolated pentamer was remarkably stable in solutions such as acetonitrile or methanol thanks to the relatively inert planar chelate metal complex, [Pd(o-phenylenediamine)2] unit. Thus, the authors can handle the metallonanobelt almost as a static organic nanobelt that was synthesized covalently.
Inorganic Chemistry published new progress about 68569-14-2. 68569-14-2 belongs to nitriles-buliding-blocks, auxiliary class Palladium, name is Tetrakis(acetonitrile)palladium(II) Ditriflate, and the molecular formula is C10H12F6N4O6PdS2, Computed Properties of 68569-14-2.
Referemce:
https://en.wikipedia.org/wiki/Nitrile,
Nitriles – Chemistry LibreTexts