Structures of the silver(I) complexes with maleic and fumaric acids: silver(I) hydrogen maleate, silver(I) maleate and silver(I) fumarate

Abstract

A series of silver(I) complexes with the unsaturated isomeric dicarboxylic acids, maleic and fumaric, has been prepared and the structures of three of these, silver(I) hydrogen maleate, (1), silver(I) maleate, (2) and silver(I) fumarate, (3), were determined by X-ray diffraction. All three structures are polymeric, with (1) and (2) based on bis(carboxylato-

Self assembly of sandwich-layered 2D silver(I) coordination polymers stabilized by argentophilic interactions: Synthesis, crystal structures and ab initio intramolecular energetics

“…The Ag-O bond lengths and O-Ag-O bond angles are well-matched to those observed in the previously reported silver(I) maleate complexes [26][27][28]. The each carboxylate group has l 5 -g 3 :g 2 fashion, which combines with Ag1 and Ag2 ions into 2D polymeric layer along the crystallographic ac plane (Fig.…”

“…Two Ag(I) maleate [Ag 2 (cis-C 4 H 2 O 4 )] n complexes (CSD refcode: ZAMBIY and ZAMBIY01), arising from the different reaction conditions, have been reported [26,28]. ZAMBIY was obtained by interaction of maleic acid and AgNO 3 in aqueous NaOH solution while ZAMBIY01 was prepared in the stoichiometric amounts (1:2) in dilute ammonia solution.…”

“…Symmetry transformations used to generate equivalent atoms: (#1) x, y À 1, z (#2) x, y + 1, z (#3) Àx + 1, y À 1/2, Àz + 1/2 (#4) Àx + 1, y + 1/2, Àz + 1/2 (#5) x, Ày À 1/2, z À 1/2 (#6) x, Ày À 1/2, z + 1/2 (#7) x, Ày + 1/2, z À 1/2 (#8) x, Ày + 1/2, z + 1/2. RUMQIZ, YUDVAU, ZAMBIY, and ZAMBIY01) [26][27][28] about silver complexes of maleic acid (H 2 ma) itemized in the CSD. It is worth noting that l 8 -g 3 :g 3 :g 2 :g 2 coordination mode of ma ligand with Ag(I) atom is observed for the first time (Scheme 3).…”

Crystal structure determination of the silver carboxylate dimer [Ag(O2C22H43)]2, silver behenate, using powder X-ray diffraction methods

“…The solid-state structures of many silver carboxylates have been published in the last 20 years, which has established the trend of these complexes to be commonly comprised of dimeric, 8-membered ring systems (Jaber et al , 1996; Smith et al , 1995; Mehrotra and Bohra, 1983; Chen and Mak, 1991a; Chen and Mak, 1991b; Olson et al , 2006; Whitcomb and Rajeswaran, 2003; Whitcomb and Rajeswaran, 2006) schematically illustrated in Figure 1 (Wu and Mak, 1995). The driving forces for this basic building block seem to be the inherent bridging nature of the carboxylate ligand along with the propensity of the silver to achieve four coordinate status.…”

Synthesis and Crystal Structure of [Ni(H2O)6][Ni(H2O)2(C4H2O4)]·4H2O

“…As one of the lower members in the family of unsaturated ,!-dicarboxylates, maleic acid is of particular interest. The partially deprotonated hydrogen maleato ligands can be viewed as a rigid bridging spacer [16] and fully deprotonated maleato ligands exhibit versatile coordination modes [17][18][19][20][21][22][23][24]. Up to now, however, no example has been reported of maleate anions acting as bidentate chelating ligands.…”