Relaying Isomerism from Ligands to Metal Complexes: Synthesis and Structures of Four Isomeric Binary Silver(I) 3,5-Dibutyl-1,2,4-triazolates

Abstract

Four isomers of 3,5-dibutyl-1H-1,2,4-triazole (3,5-R 2 tzH, R = butyl (nBu), isobutyl (iBu), secondary butyl (sBu), and tertiary butyl (tBu)) have been synthesized by condensation of the corresponding organic acids and hydrazine, followed by a deamination reaction. Their binary silver complexes have been prepared and structurally characterized by X-ray diffraction.[Ag(3,5-nBu 2 tz)] n and [Ag(3,5-iBu 2 tz)] n exhibit 3D structures of cds and dia topologies, respectively, while [Ag(3,5-sBu 2 tz)] n displays a 2D sql net and [Ag(3,5-tBu 2 tz)] 4 is a 0D tetranuclear complex. Having the same empirical formula, these four binary silver triazolates are true isomers, differing in their linkage and triazole coordination modes. This work represents an interesting case in which ligand isomerism is manifested in the structures of the corresponding metal complexes.

1,2,4-Triazolyl-4-acetate: a ditopic ligand combining soft and hard donor sites in homometallic (AgI) and heterometallic (AgI/UVI) coordination polymers

“…The known structural chemistry of Ag(I) complexes of 1,2,4-triazole derivatives displays considerable variety. A basic motif is a binuclear unit with a triazole N,N′-double bridge 9,10 which can be extended by further such bridging to give species varying from a binuclear complex to higher oligomers, [11][12][13][14][15] cyclo-oligomers 15,16 and true polymers [10][11][12][13][17][18][19] (Scheme 1a, Table S1 †). These structures in some cases are reinforced by argentophilic interactions.…”

Exploring amine-rich supramolecular silver(i) metallogels for autonomous self-healing and as catalysts for a three component coupling reaction

“…S4 and S5†). 31,32 Triazole ring nitrogen atoms participate in metal coordination, 31,32 while the primary –NH 2 groups remain uncoordinated and participate in hydrogen bond formation, to favour gelation.…”

Cadmium–Organic Coordination Polymers Based on N-Donor Ligands and Small Anions: Syntheses, Crystal Structures, and Photoluminescent Properties

“…Therefore, the short Schläfli vertex notation of the net can be represented as indicated {4.6 2 } 2 {4 2 .6 2 .8 2 } by TOPOS software . As we know, the most common topologies of 2D coordination networks are square lattice, honeycomb, hexagonal lattice, kagomé dual, kagomé, and so on. Nevertheless, coordination polymers having the topology of 2 are extremely rare.…”