title: Molecular zinc phosphonates: synthesis and X-ray crystal structures of [[(ZnMe)4(THF)2][tBuPO3]2] and [[(ZnEt)3(Zn(THF))3][tBuPO3]4[mu3-OEt]].
abstract: The 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[mu3-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(mu4-O)][(tBuPO3)8]] (1) obtained in a 1.5 : 1 reaction between zinc alkyls and tBuP(O)(OH)2.
authors.affiliation: Institut fur Anorganische Chemie der Universitat Gottingen, Tammannstrasse 4, D-37077 Gottingen, Germany.
authors.forename: Ganapathi
authors.initials: G
authors.lastname: Anantharaman
authors.forename: Vadapalli
authors.initials: V
authors.lastname: Chandrasekhar
authors.forename: Mrinalini G
authors.initials: MG
authors.lastname: Walawalkar
authors.forename: Herbert W
authors.initials: HW
authors.lastname: Roesky
authors.forename: Denis
authors.initials: D
authors.lastname: Vidovic
authors.forename: Jorg
authors.initials: J
authors.lastname: Magull
authors.forename: Mathias
authors.initials: M
authors.lastname: Noltemeyer