Interplay of coordinative and supramolecular interactions in engineering unusual crystalline architectures of low-dimensional metal–pamoate complexes under co-ligand intervention

Du, Miao; Li, Chengpeng; Zhao, Xiaojun; Yu, Qian

doi:10.1039/b707853f

Cited by 72 publications

(34 citation statements)

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“…There are six solvent molecules (four DMF and two H 2 O) and two NH 4 + counter ions in each cage, which is in agreement with elemental analysis and thermo-gravimetric analysis (TGA). During the course of this work, a pseudopolymorph of 1 with different countered ions and solvent molecules, (H 2 NMe 2 ) 2 Cd(H 2 PA) 2 -(DMF) 3 , has been reported by others [9]. Surprisingly, 1 and (H 2 NMe 2 ) 2 Cd(H 2 PA) 2 (DMF) 3 bear the same space group and very similar cell parameters, despite they contain different guests.…”

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confidence: 57%

“…This may be due to the increase of the electron density and the lower energy state of the ligand induced by the electron-donating hydroxyl group. (H 2 NMe 2 ) 2 Cd(H 2 PA) 2 -(DMF) 3 also exhibit a yellow fluorescence at 550 nm when excited at 430 nm [9]. These results indicate that the fluorescence of the [Cd(H 2 PA) 2 ] 2 should be not influenced by the accommodated guests.…”

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confidence: 66%

“…This phenomenon is very rare. Thus, we surmise that the unusual structural feature is largely a consequence of the rigidness and large cavity of anionic Cd(H 2 PA) 2 frameworks, leading to an independency of their shell from guests [9].…”

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confidence: 98%

“…The Cd 2+ cation and the four carboxylate carbon atoms have a compressed tetrahedral CdC 4 arrangement. The distortion of CdC 4 can (1) [9]. The unequal bond distances may be a result of the forces driving the ring to coplanarity.…”

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confidence: 99%

“…They can organize metal ions in a regular arrangement and/or with perfect coplanarity. Fueled by the potential of assembling frameworks with porosity or cage structures by using bis-chelating ligands, we are interested in the solid-state coordination chemistry of 4,4′-methylenebis(3-hydroxy-2-naphthoic acid) (pamoic acid, denoted as H 4 PA), which has been relatively unexplored [9]. It is to be expected that deprotonated pamoic acid will act as a linker and arrange metal ions at large distance with the vertex atoms coplanar as in IDC 3 complexes.…”

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confidence: 99%

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A luminescent metal-organic framework with an open cubic cage and eight-coordinate cadmium nodes

Wang

Zhang

et al. 2010

Sci. China Chem.

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1) Crystal data for 1: (H 4 N) 2 Cd(H 2 PA) 2 (DMF) 4 ·6H 2 O, Mr = 1321.68, monoclinic, space group Cc, a = 28.333(4) Å, b = 11.0343(15) Å, c = 20.516(3) Å,  = 120.878(3), V = 5505.0(13) Å 3 , T = 293 K, Z = 4, calcd = 1.536 g cm 3 , (Mo-K) = 0.486 mm 1 , S = 0.895, 5994 reflections measured, 4006 unique (R int = 0.0330), R 1 = 0.0734, wR 2 = 0.2454 (all data).2) Preparation and analytical data for 1: Pamoic acid (0.078 g, 0.2 mmol) was dissolved in 5 mL of DMF. 10 mL of an aqueous solution of Cd(ClO 4 )·6H 2 O (0.084 g, 0.2 mmol) was then added dropwise to this solution and the pH of the mixture was adjusted to 5 by dilute NH 3 ·H 2 O. After stirring for about 3 h, a yellow solution was obtained. After filtration, the filtrate was kept in air for several days. Yellow hexagonal tablet-shaped crystals of 1 were produced in 39% yield. Elemental analysis for 1:Self-assembly of cadmium ions and the rigid bridging ligand 4,4′-methylenebis(3-hydroxy-2-naphthoic acid) (pamoic acid, H 4 PA) leads to a one-dimensional metal-organic framework with open cube-like M 2 (H 2 PA) 2 cages within its backbone, and exhibiting interesting yellow fluorescence. framework, eight-coordinate cadmium, cubic cage, fluorescence, pamoic acid

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confidence: 57%

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confidence: 66%

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confidence: 98%

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confidence: 99%

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confidence: 99%

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A luminescent metal-organic framework with an open cubic cage and eight-coordinate cadmium nodes

Wang

Zhang

et al. 2010

Sci. China Chem.

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Tuning Structures and Properties of Coordination Polymers by the Noncoordinating Backbone of Bridging Ligands

2009

Design and Construction of Coordination Polymers

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Highly Selective Detection of 2,4,6‐Trinitrophenol and Cu²⁺ Ions Based on a Fluorescent Cadmium–Pamoate Metal–Organic Framework

Zhao

Bogale

et al. 2014

Chemistry A European J

215

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A luminescent cadmium-pamoate metal-organic framework, [Cd2 (PAM)2 (dpe)2 (H2 O)2 ]⋅0.5(dpe) (1), has been synthesized under hydrothermal conditions by using π-electron-rich ligands 4,4'-methylenebis(3-hydroxy-2-naphthalenecarboxylic acid) (H2 PAM) and 1,2-di(4-pyridyl)ethylene (dpe). Its structure is composed of both mononuclear and dinuclear Cd(II) building units, which are linked by the PAM and dpe ligands, resulting in a (4,8)-connected 3D framework. The π-conjugated dpe guests are located in a 1D channel of 1. The strong emission of 1 could be quenched efficiently by trace amounts of 2,4,6-trinitrophenol (TNP), even in the presence of other competing analogues such as 4-nitrophenol, 2,6-dinitrotoluene, 2,4-dinitrotoluene, nitrobenzene, 1,3-dinitrobenzene, hydroquinone, dimethylbenzene, and bromobenzene. The high sensitivity and selectivity of the fluorescence response of 1 to TNP shows that this framework could be used as an excellent sensor for identifying and quantifying TNP. In the same manner, 1 also exhibits superior selectivity and sensitivity towards Cu(2+) compared with other metal ions such as Zn(2+) , Mn(2+) , Mg(2+) , K(+) , Na(+) , Ni(2+) , Co(2+) , and Ca(2+) . This is the first MOF that can serve as a dual functional fluorescent sensor for selectively detecting trace amounts of TNP and Cu(2+) .

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Interplay of coordinative and supramolecular interactions in engineering unusual crystalline architectures of low-dimensional metal–pamoate complexes under co-ligand intervention

Cited by 72 publications

References 135 publications

A luminescent metal-organic framework with an open cubic cage and eight-coordinate cadmium nodes

A luminescent metal-organic framework with an open cubic cage and eight-coordinate cadmium nodes

Tuning Structures and Properties of Coordination Polymers by the Noncoordinating Backbone of Bridging Ligands

Highly Selective Detection of 2,4,6‐Trinitrophenol and Cu²⁺ Ions Based on a Fluorescent Cadmium–Pamoate Metal–Organic Framework

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Interplay of coordinative and supramolecular interactions in engineering unusual crystalline architectures of low-dimensional metal–pamoate complexes under co-ligand intervention

Cited by 72 publications

References 135 publications

A luminescent metal-organic framework with an open cubic cage and eight-coordinate cadmium nodes

A luminescent metal-organic framework with an open cubic cage and eight-coordinate cadmium nodes

Tuning Structures and Properties of Coordination Polymers by the Noncoordinating Backbone of Bridging Ligands

Highly Selective Detection of 2,4,6‐Trinitrophenol and Cu2+ Ions Based on a Fluorescent Cadmium–Pamoate Metal–Organic Framework

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Highly Selective Detection of 2,4,6‐Trinitrophenol and Cu²⁺ Ions Based on a Fluorescent Cadmium–Pamoate Metal–Organic Framework