Molecular zinc phosphonates: synthesis and X-ray crystal structures of [{(ZnMe) 4 (THF) 2 }{tBuPO 3 } 2 ] and [{(ZnEt) 3 (Zn(THF)) 3 }{tBuPO 3 } 4 {μ 3 -OEt}]
2004; Royal Society of Chemistry; Issue: 8 Linguagem: Inglês
10.1039/b400168k
ISSN1477-9234
AutoresGanapathi Anantharaman, Vadapalli Chandrasekhar, Mrinalini G. Walawalkar, Herbert W. Roesky, D. Vidovic, Jörg Magull, Mathias Noltemeyer,
Tópico(s)Metal-Organic Frameworks: Synthesis and Applications
ResumoThe reactions of zinc alkyls with tert-butylphosphonic acid in 2 ∶ 1 and 1 ∶ 1 molar ratios afforded [{(ZnMe)4(THF)2}{tBuPO3}2] (2) and [{(ZnEt)3(Zn(THF))3}{tBuPO3}4{μ3-OEt}] (3), respectively. Compounds 2 and 3 have been fully characterised by means of spectroscopic and analytical methods. Single-crystal X-ray diffraction studies revealed that zinc phosphonates 2 and 3 are tetra- and hexa-nuclear, respectively. This is in contrast to the dodecanuclear zinc phosphonate [{Zn2(THF)2(ZnEt)6Zn4(μ4-O)}{(tBuPO3)8}] (1) obtained in a 1.5 ∶ 1 reaction between zinc alkyls and tBuP(O)(OH)2.
Referência(s)