The Influence of Non‐covalent Interactions in the Structure and Dimensionality of Hybrid Compounds and Coordination Polymers

Taddei, Marco

doi:10.1002/9781119113874.ch9

Cited by 2 publications

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References 32 publications

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“…In this study, we focus on a particular class of phosphinates, namely those with two phosphinate groups connected by an organic bridge. In the last 10 years, we have extensively studied P,P -diphenylmethylene diphosphinic acid (H 2 pcp), P,P -diphenylethylene diphosphinic acid (H 2 pc 2 p) and P,P -diphenyl-p-xylylene diphosphinic acid (H 2 pxylp) [4,5] as shown in Scheme 1. Different diphosphinic acids were also reported [6,7].…”

Section: Introductionmentioning

confidence: 99%

Mechanochemical Access to Elusive Metal Diphosphinate Coordination Polymer

et al. 2019

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Several binary metal diphosphinate compounds (ML) have been reported for diphosphinate bonded by a single methylene fragment. In case of longer bridges, binary products are difficult to isolate in crystalline form. Here, using a solvent assisted mechano-chemistry synthesis, we report two new ML crystalline phases, one hydrated and one anhydrous. The hydrated phase is a 2D coordination polymer with an open framework structure. Its network displays a new topology for coordination polymers and metal organic frameworks. The thermal behavior of the two phases has been studied. Finally, the importance of the bridge length is discussed in view of known metal diphosphinate compounds.

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Section: Introductionmentioning

confidence: 99%

Mechanochemical Access to Elusive Metal Diphosphinate Coordination Polymer

et al. 2019

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“…The reversibility of this event in flexible CPs, associated with structural transformation due to changes in ligand conformation, is typically called the breathing effect. A large number of MOFs and CPs reported in the literature show this phenomenon. − Systems with change of dimensionality of the system are rare to the best of our knowledge. ,,− On the contrary, CPs based on diphosphinate ligands (see Chart ) frequently show structural modifications induced by the temperature, leading also to changes of the dimensionality of the network. − Diphosphinate linkers feature some chemical and geometrical similarities with carboxylate and phosphonate moieties (see Chart ). Diphosphinates have the advantage of being versatile in tuning the electronic and steric properties of the organic residues attached to the phosphorus atom.…”

Section: Introductionmentioning

confidence: 99%

Same Not the Same: Thermally Driven Transformation of Nickel Phosphinate-Bipyridine One-Dimensional Chains into Three-Dimensional Coordination Polymers

Guerri

Taddei

Bataille

et al. 2018

Crystal Growth & Design

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Three 1D nickel coordination polymers (CPs) based on P,P'-diphenylethylenediphosphinic acid and three different bis-pyridine co-ligands, namely 4,4'-bipyridine (bipy), 1,2-bis(4-pyridyl)ethane (bpyane) and 1,2-bis(4-pyridyl)ethane (bpy-ene), were prepared in mild hydrothermal conditions from water solutions containing the dissolved reagents. The CPs have formula [Ni(H2O)4(bipy)•pc2p]n (1),[Ni(H2O)4(bpy-ane)•pc2p]n (2), and [Ni(H2O)4(bpy-ene)•pc2p]n (3) and their structures were characterized by single crystal X-ray diffraction. They are constituted of infinite Ni(H2O)4(bis-pyridine) 1D rows connected, through hydrogen bonds, with the phosphinic acids placed among adjacent rows. Although the formulas and the structural topologies of the three compounds are almost identical, they behave in different manners upon heating. Compound 1 yields an amorphous phase when water molecules are thermally removed, whereas compound 3 undergoes interesting phase transformations derived from the connection of Ni atoms with the phosphinates oxygen atoms, increasing the dimensionality to 3D and maintaining crystallinity. The behavior of compound 2 has some analogies to that of 3 although a complete structural characterization was not performed because of a significant crystallinity loss of the heated phase. The structural features were studied by means of combination of variable temperature (VT) single crystal and powder X-ray diffraction and thermogravimetric analysis.

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The Influence of Non‐covalent Interactions in the Structure and Dimensionality of Hybrid Compounds and Coordination Polymers

Cited by 2 publications

References 32 publications

Mechanochemical Access to Elusive Metal Diphosphinate Coordination Polymer

Mechanochemical Access to Elusive Metal Diphosphinate Coordination Polymer

Same Not the Same: Thermally Driven Transformation of Nickel Phosphinate-Bipyridine One-Dimensional Chains into Three-Dimensional Coordination Polymers

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