Use of bis-aminoalcohol benzoquinones and dihydroxybenzoquinones in the formation of mono and polymeric structures of diorganotin(IV) derivatives
作者:Victor Barba、Jonathan Zaragoza、Herbert Höpfl、Norberto Farfán、Hiram I. Beltrán、Luis S. Zamudio-Rivera
DOI:10.1016/j.jorganchem.2010.10.040
日期:2011.5
Reaction of three hexadentate ligands (L1–L3) derived from 1,4-benzoquinone bis(aminoalcohols) with diorganotin oxides (R2Sn-O)n (with R = Me, nBu, Ph) in 1:2 stoichiometric proportions lead to the formation of dinuclear tin compounds of the composition [(R2Sn)2(L)], wherein the five-coordinate metal centers are embedded in distorted trigonal-bipyramidal polyhedra. X-ray diffraction analysis revealed
midpoint potential values of the electron transport carriers at the reducing site of PSI. The strong reductant produced by PSI is really more accessible to the strong lipophilic electronacceptor. These lipophilic p-benzoquinone derivatives can reach the carriers inside the thylakoid membrane more easily than the ionic electronacceptor. The acceptingelectronproperties of these compounds at PSI are