Recent advances on supramolecular isomerism in metal organic frameworks

Karmakar, Anirban; Paul, Anup; Pombeiro, Armando J. L.

doi:10.1039/c7ce00756f

Cited by 71 publications

(55 citation statements)

References 103 publications

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“…Unfortunately, the energy difference between possible polymorphs or isomers is frequently small, which can lead to the formation of different products under kinetic or thermodynamic control . In this context, a large number of polymorphic and isomeric coordination compounds were reported in the last years , . From a viewpoint of material synthesis this might be of disadvantage but there is also some benefit from these phenomena.…”

Section: Introductionmentioning

confidence: 99%

Selective Synthesis and Thermodynamic Relations of Polymorphic Co(NCS)₂‐4‐Dimethylaminopyridine Coordination Compounds

et al. 2018

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Reaction of Co(NCS) 2 with 4-dimethylaminopyridine (DMAP) leads to the formation of four new compounds. The crystal structures of Co(NCS) 2 (DMAP) 2 (H 2 O) 2 ·2H 2 O (1), Co(NCS) 2 (DMAP) 2 (MeOH) 2 (2) and Co(NCS) 2 (DMAP) 2 (MeCN) 2 (3) consist of discrete simple solvato complexes in which the Co cations are octahedrally coordinated by two terminally Nbonded thiocyanate anions, two DMAP ligands as well as two solvato ligands. Co(NCS) 2 (DMAP) 2 (4/II) also forms discrete complexes, but the Co cations are tetrahedral coordinated by two anionic ligands and two DMAP ligands. Upon heating, the hydrate 1 transforms into 4/II, whereas the methanol solvate 2 transforms into a new polymorphic modification of [a]

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Section: Introductionmentioning

confidence: 99%

Selective Synthesis and Thermodynamic Relations of Polymorphic Co(NCS)₂‐4‐Dimethylaminopyridine Coordination Compounds

et al. 2018

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“…Supramolecular isomerism is one case of this situation, referring to the existence of more than one type of network superstructure for the same molecular building blocks . Supramolecular isomerism in network solids pioneered by Moulton and Zaworotko, and as developed in subsequent reviews by Zhou and Pombeiro, has opened up a flourishing research area. Intrinsic superstructural diversity, rooted in supramolecular isomerism, is no longer regarded as a problem from a design perspective, but as an invaluable opportunity for a better understanding of the factors that influence the crystal nucleation and growth processes.…”

Section: Figurementioning

confidence: 99%

Bottom‐Up Construction and Reversible Structural Transformation of Supramolecular Isomers based on Large Truncated Tetrahedra

et al. 2018

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A rational synthetic strategy to construct two supramolecular isomers based on polyoxovanadate organic polyhedra with tetrahedral symmetries is presented. VMOP‐α, a low‐temperature product, has an extremely large cell volume (470 842 Å3), which is one of the top three for well‐defined MOPs. The corner‐to‐corner packing of tetrahedra leads to a quite low density of 0.174 g cm−3 with 1D channels (ca. 5.4 nm). The effective pore volume is up to 93.6 % of cell volume, nearly the largest found in MOPs. For the high‐temperature outcome, VMOP‐β, the cell volume is only 15 513 Å3. The packing mode of tetrahedra is corner‐to‐face, giving rise to a high‐density architecture (1.324 g cm−3; channel 0.8 nm). Supramolecular structural transformation between VMOP‐α and VMOP‐β can be reversibly achieved by temperature‐induced solvent‐mediated transformation. These findings give a good opportunity for understanding 3D supramolecular aggregation and crystal growth based on large molecular tectonics.

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“…The supramolecular isomers of CPs are those that show identical chemical compositions but differ in the structural types of the core structures. Their structural types can also be altered by using different experimental conditions [6][7][8][9][10]. Although a few supramolecular isomers based on both dicarboxylate and bis-pyridyl ligands have been reported [8], it remains a challenge to elucidate the structure-ligand relationship and thereby the intrinsic properties.…”

Section: Introductionmentioning

confidence: 99%

A Pair of CoII Supramolecular Isomers Based on Flexible Bis-Pyridyl-Bis-Amide and Angular Dicarboxylate Ligands

Chhetri

Hsieh

et al. 2020

Molecules

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Thermal reactions of cobalt(II) salts with flexible N,N′-bis(pyrid-3-ylmethyl)adipoamide (L) and angular 4,4′-sulfonyldibenzoic acid (H2SDA) in H2O and CH3OH afforded a pair of supramolecular isomers: [Co2(L)(SDA)2], 1, and [Co2(L)(SDA)2]⋅CH3OH⋅H2O, 2. The structure of complex 1 can be simplified as a one-dimensional (1D) looped chain with L ligands penetrating into the middles of squares, forming a new type of self-catenated net with the (42⋅54)(4)2(5)2 topology, whereas complex 2 displays a 2-fold interpenetrated 2D net with the rare (42⋅68⋅8⋅104)(4)2-2,6L1 topology. While both complexes 1 and 2 display antiferromagnetism with strong spin-orbital coupling, the antiferromagnetism of 2 is accompanied by a cross-over behavior and probably a spin canting phenomenon.

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Recent advances on supramolecular isomerism in metal organic frameworks

Abstract: This review highlights selected examples of supramolecular isomerism in the area of metal organic frameworks and major factors of their formation are also discussed.

Cited by 71 publications

References 103 publications

Selective Synthesis and Thermodynamic Relations of Polymorphic Co(NCS)₂‐4‐Dimethylaminopyridine Coordination Compounds

Selective Synthesis and Thermodynamic Relations of Polymorphic Co(NCS)₂‐4‐Dimethylaminopyridine Coordination Compounds

Bottom‐Up Construction and Reversible Structural Transformation of Supramolecular Isomers based on Large Truncated Tetrahedra

A Pair of CoII Supramolecular Isomers Based on Flexible Bis-Pyridyl-Bis-Amide and Angular Dicarboxylate Ligands

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Recent advances on supramolecular isomerism in metal organic frameworks

Abstract: This review highlights selected examples of supramolecular isomerism in the area of metal organic frameworks and major factors of their formation are also discussed.

Cited by 71 publications

References 103 publications

Selective Synthesis and Thermodynamic Relations of Polymorphic Co(NCS)2‐4‐Dimethylaminopyridine Coordination Compounds

Selective Synthesis and Thermodynamic Relations of Polymorphic Co(NCS)2‐4‐Dimethylaminopyridine Coordination Compounds

Bottom‐Up Construction and Reversible Structural Transformation of Supramolecular Isomers based on Large Truncated Tetrahedra

A Pair of CoII Supramolecular Isomers Based on Flexible Bis-Pyridyl-Bis-Amide and Angular Dicarboxylate Ligands

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Selective Synthesis and Thermodynamic Relations of Polymorphic Co(NCS)₂‐4‐Dimethylaminopyridine Coordination Compounds

Selective Synthesis and Thermodynamic Relations of Polymorphic Co(NCS)₂‐4‐Dimethylaminopyridine Coordination Compounds