Significant Positional Isomeric Effect on Structural Assemblies of Zn(II) and Cd(II) Coordination Polymers Based on Bromoisophthalic Acids and Various Dipyridyl-Type Coligands

Abstract

Seven new coordination polymers have been hydrothermally synthesized by using 4-Br-H 2 ip or 5-Br-H 2 ip, Zn(II) or Cd(II) salt, together with different dipyridyl co-ligands. The results reveal that the different dispositions of the -Br substituent of the isophthalate building blocks play a critical role to direct the resulting diverse coordination networks, which will also be affected by the metal ions and the dipyridyl co-ligands.

Crystal structure of catena-poly[hexakis(μ2-chlorido)-hexakis(4-(1H-pyrazol-5-yl)pyridine-κN)tricadmium(II)], Cd3C48H42Cl6N18

“…However, it is still a challenge to exactly predict the structure of CPs. The selfassembly processes of CPs are influenced by many factors, such as organic ligands [8-10], pH value [11], solvent, temperature, and reagent concentration [12][13][14][15]. In recent years, noncovalent interactions, such as hydrogen-bonding and ionic interactions between building units are also considered as important factors in the self-organization of the frameworks.…”

Crystal structure of catena-bis(µ3-5-methoxyisophthalato)-bis(µ2-1,6- bis(imidazol-1-yl)-hexane)nickel(II), [Ni2(CH3OC8H3O4)2(C12H18N4)2], C42H48N8Ni2O10

“…Aromatic multicarboxylate ligands, such as isophthalic acid (H 2 ip), and its derivatives which not only bind several metal centers of specific coordination geometry but also can transmit the magnetic interactions, are widely employed to construct such extended architectures [7][8][9][10]. In contrast to isophthalic acid, 5-methoxyisophthalic acid (CH 3 O-H 2 ip) not only contains two bridging carboxylate moieties but also possesses the -CH 3 O substituents, which can generate distinct complexes to those of isophthalate.…”

Crystal structure of catena-(μ2-4,4´-bipyridine)sil ver(I)hydrogen-bis-(5- nitro-1,2-carboxybenzene-3-carboxylato)tetrahydrate, [Ag(C10H8N2)]·(C18H9O16N2)·4H2O, C28H25AgN4O20

“…The design and construction of metal-organic coordination polymers has been shown to be apromising field, not only because of their potential applications as functional solid materials in ion exchange,catalysis,luminescence, magnets, nonlinear optics, and gass eparation/storage [1][2][3][4][5][6]…”

“…The design and construction of metal-organic coordination polymers has been shown to be apromising field, not only because of their potential applications as functional solid materials in ion exchange,catalysis,luminescence, magnets, nonlinear optics, and gass eparation/storage [1][2][3][4][5][6].A mong various organic ligands, rodlike N,N'-donor building blocks, such as the conventionally employed 4,4'-bipyridine (bipy),a re widely employed to construct such coordination polymers [3,[7][8][9][10][11]. [Ag(m 2 -bipy)] + complexes have been extensively studied in coordination chemistry [12][13][14][15].…”