A new three dimensional proton transfer compound including citric acid and 2,4,6-triamine-1,3,5-triazine: synthesis, characterization and X-ray crystal structure

Bis(2,4,6-triamino-1,3,5-triazin-1-ium) 2-[bis(carboxylatomethyl)azaniumyl]acetate trihydrate

“…Several examples with simple alkyl carboxylic acids (see for example Perpétuo & Janczak, 2002) and dicarboxylic acids are known (such as Froschauer andWeil, 2012 &Eppel andBernstein, 2009). Those with three carboxylic acid groups are less common (Huczynski et al, 2009;Eshtiagh-Hosseini et al, 2010;Perpetuo and Janczak, 2003). We set out to explore the effect of introducing multiple carboxylic acid groups with a flexible geometry through the use of nitrilotriacetic acid, N(CH 2 COOH) 3 .…”

Syntheses, crystal, molecular structures, and solution studies of Cu(II), Co(II), and Zn(II) coordination compounds containing pyridine-2,6-dicarboxylic acid and 1,4-pyrazine-2,3-dicarboxylic acid: comparative computational studies of Cu(II) and Zn(II) complexes

“…Functional groups are widely employed to construct crystalline edifice [14,15]. In this work, a systematic study was employed for proton-transfer process from carboxylic acids to amines [16][17][18][19][20][21][22][23][24][25][26][27][28][29]. PydcH 2 and pyzdcH 2 were used as ligands in designing coordination compounds with various dimensionalities and inducing selfassembly processes [30][31][32][33][34][35][36][37][38][39][40][41][42].…”

“…As valuable characters are: (a) heterocyclic acid with two carboxyl groups, (b) form hydrogen bonding and aromatic-aromatic stacking interactions, (c) contain N-or O-donor atoms, these leads to new structures with diverse dimensional. Previously, the syntheses and structural characterization of some coordination compounds via proton-transfer methodology were described [16][17][18][19][20][21][22][23][24][25][26][27][28][29]. Herein, the syntheses and potentiometric studies of three new Cu(II), Co(II), and Zn(II) coordination compounds involving abovementioned dicarboxylic acids as proton donors, and Acr and 2a-4mpy heterocyclic amines as proton acceptors are reported.…”