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GRAPHICAL ABSTRACT
ABSTRACT
In this short review, we report the interest of using rigid phosphonic acid and rigid polyfunctional phosphonic acid to produce original crystalline hybrid materials. The rigidity of phosphonic acid precursors is obtained by placing the phosphonic acid functional group directly on the aromatic or heteroaromatic rings. The synthesis of such type of phosphonic acid is readily obtained from aryl halides in two steps. The incorporation of phosphonic and carboxylic acid functional groups simultaneously on one substrate demonstrate its interest to produce original hybrid structure that, in some case, are non-centrosymmetric. These results invite to produce new rigid polyphosphonic acid and mixed phosphonic-carboxylic precursors to produce thermal stable and non-centrosymmetric crystalline materials.
Acknowledgment
We thank the Agence Nationale de la Recherche [contract no. ANR-14-CE07-0004-01 (HYMN)].