Open-Framework Cadmium Succinates of Different Dimensionalities

Abstract

Open-framework cadmium succinates, [CN(3)H(6)](2)[Cd(2)(C(4)H(4)O(4))(Cl)(2)], I; [CN(3)H(6)](2)[Cd(C(4)H(4)O(4))(2)], II; Cd(2)(C(4)H(4)O(4))(2)(C(4)N(2)H(8))(H(2)O)(3), III; [C(4)N(2)H(12)][Cd(2)(C(4)H(4)O(4))(3)].4H(2)O, IV; Cd(C(4)H(4)O(4))(H(2)O)(2), V; and Cd(3)(C(4)H(4)O(4))(2)(OH)(2)], VI, of different dimensionalities have been synthesized by hydrothermal procedure by employing two different strategies, one involving the reaction of Cd salts with organic-amine succinates and the other involving the hydrothermal reaction of Cd salts with a mixture of succinic acid and the organic amine. While the latter procedure yields structures without any amine in them, the former gives rise to amine templated cadmium succinates with open architectures. By employing guanidinium succinate we have obtained I and II, and with piperazinium succinate we obtained III and IV. Of these I has a one-dimensional chain structure, IV has a layered structure, and II and III have three-dimensional architectures. The two cadmium succinates without incorporation of amine, V and VI, possess layered and three-dimensional structures, respectively. The three-dimensional structures II and III exhibit interpenetration similar to that in diamondoid and alpha-polonium type structures, respectively.

An acentric luminescent cadmium dimethylsuccinate/bipyridine coordination polymer with an uncommon three-dimensional CdSO4 topology

“…3), which marks the c lattice parameter. It is plausible that the steric hindrance imparted by the gem-dimethyl substituents exerts a structure directing role in this case, preventing the occurrence of cadmium-carboxylate 2-D layer motifs seen in the iminefree hydrated phase [Cd(succinate)(H 2 O) 2 ] n [16] and in the 3-D doubly interpenetrated solid [Cd(succinate)(4,4 0 -dipyridylamine)] n [17]. The [Cd(dms)(H 2 O) 2 ] n helices are similar to the 1-D [Cu(succinate)(H 2 O) 2 ] n helices seen in the 3-D 7 5 9 (quartz dual) topology coordination polymer {[Cu(succinate)(4,4 0 -bpy)(H 2 O) 2 ] Á 2 H 2 O} n [18].…”

A Multi‐Responsive Cd–Viologen Complex: Photochromism, Photomodulated Fluorescence, and Luminescent Sensing

“…The second weight loss in the range of 135–700 °C corresponds to the decomposition of the organic ligands. The remaining weight is attributed to the formation of CdO (obsd, 20.40%; calcd, 29.89%) and the slow evaporation of CdO …”

Role of carboxylate ion and metal oxidation state on the morphology and magnetic properties of nanostructured metal carboxylates and their decomposition products

“…Several studies on single crystals of three-dimensional open framework structures complexed with metal ions obtained by hydrothermal method have been reported. 1,2 Kinetic analysis on the thermal decomposition of transition metal succinates obtained by coprecipitation method has also been reported, 3 which led to either single crystalline (0⋅01 mm) or micronsized polycrystalline materials. We have been interested in the nanostructures of metal-organic-based systems.…”