Syntheses, Structure and Intercalation Properties of Low‐Dimensional Phenylphosphonates, A(HO 3 PC 6 H 5 )(H 2 O 3 PC 6 H 5 ) (A = Alkali Metal, NH 4 and Tl)

Seven new low‐dimensional phenylphosphonates, A(HO 3 PC 6 H 5 )(H 2 O 3 PC 6 H 5 ) [A = Li ( 1 ), Na ( 2 ), K ( 3 ), Rb ( 4 ), Cs ( 5 ), NH 4 ( 6 ) and Tl ( 7 )], have been synthesized and characterized by X‐ray diffraction, spectroscopic and thermal studies. They crystallize in triclinic unit cells with two formula units and have approximately planar arrangement of A + ions, coordinated to oxygen atoms of phenylphosphonates, on both sides. Compounds 1 and 6 are one‐dimensional, whereas others are two‐dimensional. All of them undergo room‐temperature intercalation reactions with primary n ‐alkylamines and ammonia. Single crystal X‐ray structures of compounds 1 , 2 and 6 have been determined. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)