Dicatechol-diimines: easily accessible ligands for the self-assembly of dinuclear triple-stranded helicates

Dalton Transactions : an International Journal of Inorganic Chemistry
Markus AlbrechtRoland Fröhlich

Abstract

Dicatechol ligands 3b-g-H4 are simply prepared by imine formation of 2,3-dihydroxybenzaldehyde 2 with a series of different diamines 1b-g . An X-ray structural analysis was obtained for the butyl-bridged compound 3e-H4, showing an intramolecular proton transfer and the formation of a chinoidic "keto-amine" structure. The dicatechol derivatives 3b-g-H4 form dinuclear triple-stranded helicates M4[(3)3Ti2] with titanium(IV) ions in the presence of alkali-metal carbonate. For the phenyl- and the trans-1,4-cyclohexyl-bridged complexes, K4[(3b)3Ti2] and Na4[(3f)3Ti2], X-ray structures were obtained.

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Citations

Jul 8, 2014·Inorganic Chemistry·Paula CucosMarius Andruh
Dec 14, 2004·Angewandte Chemie·Markus AlbrechtRoland Fröhlich
Feb 23, 2005·Chemical Communications : Chem Comm·Markus AlbrechtRoland Frohlich
Nov 20, 2016·Dalton Transactions : an International Journal of Inorganic Chemistry·Georges KhalilPierre Mobian
Nov 6, 2014·Chemistry : a European Journal·Chaolu EerdunJun-Ichiro Setsune
Aug 15, 2006·Angewandte Chemie·Shuichi HiraokaMitsuhiko Shionoya
Nov 26, 2008·Dalton Transactions : an International Journal of Inorganic Chemistry·Marylène Chollet-KruglerPierre van de Weghe
Jun 6, 2006·Dalton Transactions : an International Journal of Inorganic Chemistry·Markus AlbrechtPatrick Weis
Mar 20, 2014·Chemistry : a European Journal·David Michael WeekesMarc Henry
Oct 12, 2012·Organic & Biomolecular Chemistry·Meiying WeiXiao-Juan Yang
Oct 8, 2013·Acta Crystallographica. Section E, Structure Reports Online·Max ArsenyevGleb Abakumov
Sep 16, 2011·Dalton Transactions : an International Journal of Inorganic Chemistry·Suzanne E Howson, Peter Scott
Jan 26, 2005·Chemistry : a European Journal·Carsten UerpmannMichael J Hannon
Oct 23, 2009·Inorganic Chemistry·Lea T DulatasMatthew M Wopperer
Nov 6, 2021·Dalton Transactions : an International Journal of Inorganic Chemistry·L BarloyP Mobian

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