Saha, S; Ghosh, A; Paululat, T; Schmittel, M in [Saha, Suchismita; Ghosh, Amit; Schmittel, Michael] Ctr Micro & Nanochem & Engn, Dept Chem Biol, Organ Chem 1, Adolf Reichwein Str 2, D-57068 Siegen, Germany; [Paululat, Thomas] Dept Chem Biol, Organ Chem 2, Adolf Reichwein Str 2, D-57068 Siegen, Germany published Allosteric regulation of rotational, optical and catalytic properties within multicomponent machinery in 2020, Cited 47. Safety of 4,4′-Dibromobiphenyl. The Name is 4,4′-Dibromobiphenyl. Through research, I have a further understanding and discovery of 92-86-4.
The reversible transformation of multicomponent nanorotors (ROT-1,k(298)= 44 kHz orROT-2,k(298)= 61 kHz) to the dimeric supramolecular structures (DS-1orDS-2,k(298)= 0.60 kHz) was triggered by a stoichiometric chemical stimulus. Simple coordination changes at the central phenanthroline of the molecular device by altering metal ions (Cu+-> Zn2+) or stoichiometry (Cu+, 1 equiv. -> 0.5 equiv.) affected the terminal zinc(ii) porphyrin units, the active sites within the machinery, changing rotational, catalytic and optical properties. In presence of added pyrrolidine, the nanorotorROT-1was inactive for catalysis whereas formation of the dimeric supramolecular structuresDS-1initiated a Michael addition reaction by releasing the organocatalyst from the porphyrin sites. This catalytic machinery (ROT-1 reversible arrow DS-1) proved to reproducibly work over two full cycles using allosteric OFF/ON control of catalysis.
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Reference:
Benzoxazole – Wikipedia,
,Benzoxazole | C7H5NO – PubChem