Synthesis, Structure and Luminescence of Cd₃Cu₂ and Cd₂Ni₄ Heteronuclear Complexes with Macrocyclic Oxamide and 5‐Sulfosalicylicate

Abstract

Two novel heteronuclear complexes [Cd3(SSAL)2(CuL)2(H2O)4]n (1) and [Cd2(HSSAL)2(NiL)4]·4H2O (2) were synthesized and structurally determined, where SSAL is the fully deprotonated 5‐sulfosalicylic ion (CuL and NiL, H2L = 2,3‐dioxo‐5,6,14,15‐dibenzo‐1,4,8,12‐tetraazacyclopentadeca‐7,13‐diene). Compound 1 displays a 1D ladder‐like chain and all these chains are further interlinked through hydrogen bonds resulting in a 2D architecture. The structure of 2 consists of 5‐sulfosalicylates and an oxamido‐bridge and is arranged in butterfly‐like hexanuclear molecules. The luminescent properties of compounds 1 and 2 are also discussed.

Coordination polymer {[Cd2(NiL)2(Btca)2] · H2O}n of macrocyclic oxamide with benzotriazole-5-carboxylate: Syntheses, crystal structures, and fluorescence properties

“…The results reported here and previous ly reported [17,25] show that the complex was obtained at relatively high er pH (7)(8). Complex I is stable under the ambient conditions and insoluble in common solvents, such as water, alcohol, and acetonitrile.…”

“…However, hetero metallic coordination polymers remain relatively scarce because of the coordinative complexity of the heterometallic ions involved in the self assembly pro cess [11][12][13][14][15][16]. Recently, some aromatic multicarboxy late as co ligands were chosen to design and construct diverse oxamido bridged heteropolynuclear networks [17][18][19][20]. However, those containing oxamide and het erocyclic carboxylate mix bridged polynuclear com plexes have been made rarely [17][18][19][20][21].…”

“…Recently, some aromatic multicarboxy late as co ligands were chosen to design and construct diverse oxamido bridged heteropolynuclear networks [17][18][19][20]. However, those containing oxamide and het erocyclic carboxylate mix bridged polynuclear com plexes have been made rarely [17][18][19][20][21].…”

Syntheses, Structures, and Luminescent Properties of Two Novel Coordination Polymers with Mixed Ligands

“…The results of luminescence suggest the emission bands of the complex 2 are the result of poly-carboxylate and N-heterocyclic ligands interact on each other. Compared to the similar Cd(II) complexes [33,34], our complex 2 exhibits more strong emissions, which may be attributed to the higher dimension and rigidity of complex 2. The rigidity is favor of energy transfer and reduces the loss of energy through a radiationless pathway.…”

Two 3d-4f Heterometallic Coordination Polymers of Macrocyclic Oxamide with Benzotriazole-5-carboxylate Co-ligand: Syntheses, Crystal Structures and Magnetic Properties

“…Especially, benzotriazole‐5‐carboxylate has five coordination atoms and different bonding modes, which makes it easy to design and construct extended frameworks . In our previous work, although some 3d‐3d′ heterometallic coordination polymers based on macrocyclic oxamide and aromatic multicarboxylate have been obtained, those containing 3d‐4f have been prepared rarely.…”