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Three new silver alkylenediphosphonates, [Ag2(HO3PCH2CH2CH2CH2PO3H)] 1, [Ag4(O3PCH2CH2CH2CH2PO3)] 2 and [Ag4(O3PCH2CH2CH2PO3)(H2O)] 3, have been hydrother- mally synthesized and characterized by X-ray single-crystal and powder diffraction, elemental ana- lyses, IR and thermogravimetric analyses (TGA). The structures of these compounds are all three- dimensional pillar-like open-frameworks with 18-membered [Ag2O4P4C8] channels for compound 1 and 2, and 16-member [Ag2O4P4C6] channels for compound 3. Both 2 and 3 contain interesting two- dimensional Ag(I) networks based on Ag···Ag interactions. 1,4-Butylene- and 1,3-propylene diphos- phonate groups of 2 and 3 bond the first and second maximum metal atoms among metal organo- diphosphonates with linking sixteen and fifteen silver(I) atoms, respectively. In addition, the coor- dinated water molecules of 3 can be reversibly removed and recovered.
Three new silver alkylenediphosphonates, [Ag2 (HO3PCH2CH2CH2CH2PO3H)] 1, [Ag4 (O3PCH2CH2CH2CH2PO3)] 2 and [Ag4 (O3PCH2CH2CH2PO3) (H2O)] 3 have been hydrother- mally synthesized and characterized by X-ray single-crystal and powder diffraction , the structure of these compounds are all three-dimensional pillar-like open-frameworks with 18-membered [Ag2O4P4C8] channels for compound 1 and 2, and 16-member [Ag2O4P4C6 ] channels for compound 3. Both 2 and 3 contain interesting two-dimensional Ag (I) networks based on Ag ··· Ag interactions. 1,4-Butylene- and 1,3-propylene diphos-phonate groups of 2 and 3 bond the first and second maximum metal atoms among metal organo-diphosphonates with linking sixteen and fifteen silver (I) atoms, respectively. In addition, the coorodinized water molecules of 3 can be reversibly removed and recovered.