Cheng, Ho Fung published the artcileElectron-Equivalent Valency through Molecularly Well-Defined Multivalent DNA, Related Products of quinuclidine, the publication is Journal of the American Chemical Society (2021), 143(4), 1752-1757, database is CAplus and MEDLINE.
Oligonucleotide-functionalized nanoparticles (NPs), also known as “programmable atom equivalent” (PAEs), have emerged as a class of versatile building blocks for generating colloidal crystals with tailorable structures and properties. Recent studies have shown that, at small size and low DNA grafting d., PAEs can also behave as “electron equivalent” (EEs), roaming through and stabilizing a complementary PAE sublattice. However, it has been challenging to obtain a detailed understanding of EE-PAE interactions and the underlying colloidal metallicity because there is inherent polydispersity in the number of DNA strands on the surfaces of these NPs; thus, the structural uniformity and tailorability of NP-based EEs are somewhat limited. Herein, we report a strategy for synthesizing colloidal crystals where the EEs are templated by small mols., instead of NPs, and functionalized with a precise number of DNA strands. When these molecularly precise EEs are assembled with complementary NP-based PAEs, X-ray scattering and electron microscopy reveal the formation of three distinct “metallic” phases. Importantly, we show that the thermal stability of these crystals is dependent on the number of sticky ends per EE, while lattice symmetry is controlled by the number and orientation of EE sticky ends on the PAEs. Taken together, this work introduces the notion that, unlike conventional electrons, EEs that are mol. in origin can have a defined valency that can be used to influence and guide specific phase formation.
Journal of the American Chemical Society published new progress about 1353016-70-2. 1353016-70-2 belongs to quinuclidine, auxiliary class Other Aromatic Heterocyclic,Carboxylic acid,Amide,Inhibitor,Inhibitor, name is Dbco-acid, and the molecular formula is C19H15NO3, Related Products of quinuclidine.
Referemce:
https://en.wikipedia.org/wiki/Quinuclidine,
Quinuclidine | C7H13N | ChemSpider