Das 1,3‐Dimethylcyanurat‐Ion als ambidenter Ligand

Abstract

The 1,3‐Dimethylcyanurate Ion as an Ambident Ligand1,3‐Dimethyl‐2,4,6‐trioxo‐1,3,5‐triazin (7), (1,3‐dimethylcyanuric acid, DMCH), obtained from the thermolysis of methyl urea, is deprotonated with lithium ethylate. In the resulting dinuclear complex [(DMCLi)2·4 H2O] (8), the heterocyclic anions are linked to the lithium centres with oxygen atoms as its enolate form. In the corresponding silver complex [(DMCAg)2·en] (10), (en = ethylendiamine), N‐coordination of the ligand is observed. The crystal structures of 7, 8, and 10 reveal the presence of intermolecular hydrogen bonds.

[Ph4P][(C5H6N3O3)M(CO)5] (M = Cr, Mo, W; C5H7N3O3 = 1,3‐Dimethyl‐cyanuric Acid). Organometallic Complexes of the 1,3‐Dimethylcyanurate Ligand

“…All experiments were performed in purified solvents under argon. Li[DMC] was obtained according to a published procedure [1].…”

“…The coordination of the 1,3-dimethylcyanurate ligand (1, C 5 H 6 N 3 O 3 ϭ DMC) at metal centres has been reported by us recently [1,2]. The marked interest in organometallic complexes of pyrimidine [3,4] and uracil [5Ϫ7] ligands prompted us to investigate the syntheses and properties of its pentacarbonylmetalate complexes.…”

Bis[(4-chlorophenoxy)acetato-κO](ethylenediamine-κ2 N,N′)zinc

“…pCPA ligands can also show bridging properties (Liwporncharoenvong & Luck, 2005;Li et al, 2013;Jin et al, 2015;An et al, 2002) and form chain structures (Wang et al, 2006(Wang et al, , 2008Li et al, 2013). Ethylenediamine (EDA) ligands can coordinate to metal ions in a monodentate fashion (Xue et al, 2016;Mitzinger et al, 2016;Zhang et al, 2009;Fanizzi et al, 1984;Saidi et al, 2013) and in some complexes behave as bridging ligands (Binnemans et al, 2013;House & Steel, 1999;Bratsos et al, 2011;Doring & Jones, 2013;Kuhn et al, 2008). In many cases, EDA data reports demonstrates a chelating property.…”