Gumbau-Brisa, R.; Hayward, J. J.; Wallis, J. D.; Rawson, J. M.; Pilkington, M. published an article in 2016, the title of the article was Structural insights into the coordination chemistry and reactivity of a 3,3′-bis-imine-2,2′-bipyridine ligand.Recommanded Product: [2,2′-Bipyridine]-3,3′-diamine And the article contains the following content:
The coordination chem. of ligand L8 Schiff-base derived from 6,6′-diamine-2,2′-bipyridine and salicylaldehyde, with Lewis acidic metal ions affords mononuclear [Sn(L9)Cl4] (1) and two paramagnetic dimers [Cu(L9)(sal)]2(ClO4)2, (2) and [Mn(L9)Cl2(EtOH)]2 (3). The x-ray crystal structures of 1-3 reveal a propensity for L8 to undergo metal catalyzed hydrolysis and cyclization to the diazepine ligand L9. Theor. calculations on L8 and a model Sn(IV) complex reveal that coordination to a metal ion weakens the imine bonds, rendering them more susceptible to hydrolysis reactions and/or attack by nucleophiles. In contrast, reaction of L8 with FeCl3 in the presence of base affords the partial hydrolysis product [Fe(L10)2]Cl·CH3CN (4). Tuning the reaction conditions via the addition of a 2nd base slows down the hydrolysis of the ligand sufficiently to afford a few crystals of the μ2-oxo diferric complex (μ-O)[Fe(L8)]2·2CH3CN (5) in which intact L8 coordinates to the Fe(III) in a bis-bidentate manner through a deprotonated salicyl oxygen and a bis-imine nitrogen lone pair, with the nitrogen atoms of its 2,2′-bipyridine remaining uncoordinated. The experimental process involved the reaction of [2,2′-Bipyridine]-3,3′-diamine(cas: 75449-26-2).Recommanded Product: [2,2′-Bipyridine]-3,3′-diamine
The Article related to tin transition metal schiff diaminebipyridine salicylaldehyde diazepine complex preparation, crystal structure tin transition metal schiff diaminebipyridine salicylaldehyde diazepine and other aspects.Recommanded Product: [2,2′-Bipyridine]-3,3′-diamine