82460-73-9Relevant academic research and scientific papers
High-throughput microwave-assisted discovery of new metal phosphonates
Feyand, Mark,Seidler, Christopher F.,Deiter, Carsten,Rothkirch, Andre,Lieb, Alexandra,Wark, Michael,Stock, Norbert
, p. 8761 - 8770 (2013)
A systematic study was carried out to investigate the influence of linker geometry, metal ionic radius as well as the nature of the counter ions on the structure formation of metal tetraphosphonates. Two tetraphosphonic acids p- and m-(H2O3PCH2)2N-CH 2-C6H4-CH2-N(CH2PO 3H2)2, six metal ions (Ca2+, Mn 2+, Co2+, Ni2+, Zn2+, and Cd 2+) and two different counter ions (Cl- and NO 3-) were employed using high throughput methods. Microwave (MW)-assisted heating led to the discovery of ten new metal-phosphonates which crystallize in three different crystal structures. The combination of direct methods and force field calculations allowed us to establish the crystal structures. The counter ion and the ionic radii of the metal ions have a profound influence on the crystallinity and the formed crystal structure. All compounds were characterized in detail by thermogravimetric analyses, IR spectroscopy and magnetic susceptibility measurements. The proton conductivity of two selected compounds is also reported.
Green synthesis of poly(aminomethylenephosphonic) acids
Villemin, Didier,Moreau, Bernard,Elbilali, Abdelghani,Didi, Mohamed-Amine,Kaid, Mhamed,Jaffres, Paul-Alain
experimental part, p. 2511 - 2519 (2011/02/28)
The reaction of polyamines with phosphorous acid and formaldehyde in water under focused microwave irradiation provides a facile and rapid synthesis of poly(aminomethylenephosphonic) acids. Taylor & Francis Group, LLC.
