Channel-containing lanthanide mucate structures

Abrahams, Brendan F.; Moylan, Michael; Orchard, Simon D.; Robson, Richard

doi:10.1039/b306838b

Cited by 18 publications

(6 citation statements)

References 16 publications

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“…The square channel has dimensions of approximately 5.8 Â 5.8 A ˚and accommodates water molecules. The same authors also synthesized a family of frameworks using galactaric acid: 64…”

Section: Saccharides (Carbohydrates)mentioning

confidence: 99%

Metal–biomolecule frameworks (MBioFs)

et al. 2011

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“…The square channel has dimensions of approximately 5.8 Â 5.8 A ˚and accommodates water molecules. The same authors also synthesized a family of frameworks using galactaric acid: 64…”

Section: Saccharides (Carbohydrates)mentioning

confidence: 99%

Metal–biomolecule frameworks (MBioFs)

et al. 2011

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“…Investigations of the assembly of metal−organic frameworks (MOFs) based on the lanthanide family have attracted great interest due to not only their versatile architecture − but also their potential utilization as luminescent and sensory materials. , Many of these frameworks also show excellent photoluminescence − and have interesting magnetic properties . Because of the high coordination nature, controlling the overall frameworks of lanthanide-based coordination polymers (CPs), undoubtedly, is a challenge.…”

Section: Introductionmentioning

confidence: 99%

Unusual Robust Luminescent Porous Frameworks Self-Assembled from Lanthanide Ions and 2,2‘-Bipyridine-4,4‘-dicarboxylate

Yeh

Wen

et al. 2005

Crystal Growth & Design

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Three lanthanide(III) coordination polymers, [{Ln 2 (bpdc) 3 (H 2 O) 3 }‚H 2 O] n (Ln ) Sm, 1; Eu, 2; Tb, 3), were selfassembled from 2,2′-bipyridine-4,4′-dicarboxylic acid (H 2 bpdc) and corresponding lanthanide(III) salts under hydrothermal conditions. The compounds were found to be isomorphous and isostructural. Single-crystal X-ray diffraction studies show that compounds 1-3 present a three-dimensional network with one-dimensional hydrophilic microchannels that are occupied by guest water molecules. An edge-sharing dinuclear polyhedral [Ln 2 O 14 ] was found to be the building unit of the network, in which two eight-coordinated LnO 8 cores exhibit distinct coordination environments, that is, one is in a dicapped trigonal prism and the other is in a dodecahedron. Surprisingly, the bpdc ligand exhibits four different types of bonding characteristics in a framework, including the bis(monodentate), bis(syn,syn-bridging bidentate), bis(syn,anti-bridging bidentate), and bis(chelating-bridging bidentate) modes. The pyridyl nitrogen atoms of the 2,2′-bipyridyl unit in the bpdc ligand are uncoordinated in an anti conformation along the central C-C bond of the ligand, resulting from the high oxophilic nature of lanthanide(III) ions. A thermogravimetric analysis of 1 showed a high thermal stability (decomposing under N 2 at T > 470 °C), indicating that the coordination habit of the metal ions with the bpdc ligand has a profound effect on the overall rigidity of the framework and the thermal stability of the compound. Photoluminescence measurements indicate that europium compound 2 and terbium compound 3 are strong red and green emitters, respectively.

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“…This network topology was first seen in 1999 in the structure of (R 2 Sn) 3 [Co(CN) 6 ] 2 . 9,10 A few years later we discovered accidentally that lanthanum mucate possesses this topology, 11 at a time when we had been deliberately (but unsuccessfully) targeting just this net by the use of the tetraanion of 4,4 0 ,4 00 ,4 000 -(21H,23H-porphine-5,10,15,20tetrayl)-tetrakis(benzoic acid) (and a number of its metal derivatives), intended to serve as the 4-connecting square node, and the trinuclear Cr 3 O(carboxylate) 6 cluster (as seen in basic chromium acetate) intended to provide the 6-connecting trigonal prismatic node. Since our isolation of the lanthanum mucate structures a number of other lanthanide-based networks involving dicarboxylate ligands with the same topology have been identified.…”

mentioning

confidence: 99%

A new type of 3D [(M^II)₂(TCNQ^−II)₃]²⁻coordination network with spacious channels of hexagonal cross-section generated from TCNQH₂

et al. 2012

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The dianion of tetracyanoquinodimethane, TCNQ 2À , is able to act as a ligand capable of binding four metal ions at the corners of a rectangle. When the ligand is combined with divalent metal ions in the presence of appropriate counterions, infinite anionic networks may be formed of composition [M 2 TCNQ 3 ] 2À (M ¼ Mn, Zn, Cd). In the structures reported here the cyano groups from six separate TCNQ dianions provide an octahedral coordination environment around the metal centres. Large hexagonal channels in the anionic network are occupied by highly disordered countercations.

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Channel-containing lanthanide mucate structures

Cited by 18 publications

References 16 publications

Metal–biomolecule frameworks (MBioFs)

Metal–biomolecule frameworks (MBioFs)

Unusual Robust Luminescent Porous Frameworks Self-Assembled from Lanthanide Ions and 2,2‘-Bipyridine-4,4‘-dicarboxylate

A new type of 3D [(M^II)₂(TCNQ^−II)₃]²⁻coordination network with spacious channels of hexagonal cross-section generated from TCNQH₂

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Channel-containing lanthanide mucate structures

Cited by 18 publications

References 16 publications

Metal–biomolecule frameworks (MBioFs)

Metal–biomolecule frameworks (MBioFs)

Unusual Robust Luminescent Porous Frameworks Self-Assembled from Lanthanide Ions and 2,2‘-Bipyridine-4,4‘-dicarboxylate

A new type of 3D [(MII)2(TCNQ−II)3]2−coordination network with spacious channels of hexagonal cross-section generated from TCNQH2

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A new type of 3D [(M^II)₂(TCNQ^−II)₃]²⁻coordination network with spacious channels of hexagonal cross-section generated from TCNQH₂