Name: (4-(Pyridin-4-yl)phenyl)methanol. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: (4-(Pyridin-4-yl)phenyl)methanol, is researched, Molecular C12H11NO, CAS is 217192-22-8, about Regioselective Catenation of Dinuclear Palladium and Platinum Metallocycles Promoted by π···π Interactions. Author is Blanco, Victor; Abella, Dolores; Pia, Elena; Platas-Iglesias, Carlos; Peinador, Carlos; Quintela, Jose M..
Dinuclear metallocycles were assembled from an L-shaped bidentate ligand based on 4,4′-bipyridine and Pd or Pt square-planar cis complexes. The Pd (4a,b) or Pt (5a,b) square metallocycles, I6+ and II6+ (M = Pd, Pt, as NO3- (a) and PF6- (b) salts, resp.), were obtained as 1:1 regioisomeric mixtures depending on which pair of coordinative N atoms binds to the metal center. The squares display a π-deficient cavity suitable to incorporate two π-donor aromatic systems. Therefore, the reaction with macrocyclic polyethers (BPP34C10 or DN38C10) resulted in the regioselective self-assembly of the [3]catenanes 4a(BPP34C10 or DN38C10)2·6PF6 and 5a(BPP34C10 or DN38C10)2·6PF6 because only macrocycles 4a and 5a present the correct disposition of the π-deficient aromatic systems to maximize the π···π stacking interactions. Single-crystal x-ray analyses of [3]catenanes revealed that the structures are addnl. stabilized by [C-H···O], [N-H···O] bonds and [C-H···π] interactions. The 1:2 inclusion complexes of metallocycles were prepared by self-assembly of three components: the ligand 1-(4-(pyridin-4-yl)benzyl)-4,4′-bipyridin-1-ium, a square planar complex M(en)(NO3)2 (M = Pd or Pt, en = ethylenediamine), and a dioxoarom. guest in a 2:2:2 ratio. The comparative study of the formation of 1:2 inclusion complexes has allowed the authors to conclude that the π···π interactions between the host and guests are responsible for the observed regioselectivity.
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Quinoxaline – Wikipedia,
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