New in Situ Condensation Reaction of Amino Diphosphonic Acids: A Series of Bicyclic Phosphonate Derivatives and Three Novel Water Clusters

• Published in: Crystal growth & design Vol. 8; no. 8; pp. 2824 - 2833
• Main Authors: Chen, Shuo-ping, Huang, Guang-xi, Li, Ming, Pan, Ling-ling, Yuan, Yi-xuan, Yuan, Liang-jie
• Format: Journal Article
• Language: English
• Published: Washington,DC American Chemical Society 01.08.2008
• Subjects: Condensed matter: structure, mechanical and thermal properties; Cross-disciplinary physics: materials science; rheology; Exact sciences and technology; Growth from solutions; Materials science; Methods of crystal growth; physics of crystal growth; Organic compounds; Other materials; Physics; Specific materials; Structure of solids and liquids; crystallography; Structure of specific crystalline solids; Condensation reaction; Organometallic compounds; Phosphonates; Amino acids; Zinc complexes; Liquid layer; X-ray crystallography; Nickel complexes; Monocrystals; Imidazoles; Hydrothermal synthesis; Low pressure; Phenanthrolines; Crystal growth from solutions; Ligands; Nickel; Copper complexes; Crystal structure
• ISSN: 1528-7483; 1528-7505
• DOI: 10.1021/cg7011149

A new in situ low-temperature, low-pressure hydrothermal condensation reaction of amino diphosphonic acids affords a series of phosphonate derivatives with bicyclic structures. By using such bicyclic phosphonate ligands, three compounds, namely, [Zn2(L1)(phen)4]·12H2O (1), [Ni(Im)6]3(L2)2(ImH)2·24H2O (2), and [Cu2(L3)(phen)2(H2O)2]·9H2O (3) (phen = 1,10-phenanthroline, Im = imidazole, L1H4, L2H4, and L3H4 represent different bicyclic phosphonate derivatives), have been synthesized and structurally characterized by single-crystal X-ray crystallography. Novel water clusters with different structural motifs, such as T4(3)5(0)A0 water tape in 1, TU water tape in 2, and L5(4)5(5)15(14) water layer in 3, are discussed in detail. The coordination mode of the metal ion and the use of the appropriate second ligand, which would influence the reaction and structures of the final products are also discussed.