Alkylzinc diorganophosphates: synthesis, structural diversity and unique ability to incorporate zincoxane units.
Equimolar reactions between ZntBu2and diphenyl phosphate (dpphe-H) or dimethyl phosphate (dmphe-H) result in the formation of [tBuZn(O2P(OR')2)]-type compounds which crystallize as tetranuclear aggregates, [tBuZn(dpphe)]4(14) or [tBuZn(dmphe)]4(24), with the phosphate ligands spanning 4-coordinate Zn centers. The utility of ZnMe2instead of ZntBu2dramatically changes the reaction outcome and leads to [MeZn(O2P(OR')2)]-type moieties incorporating zincoxane units, i.e., pentanuclear [{MeZn(dpphe)}3(Me2Zn2O)(THF)2] (3) and nonanuclear [{MeZn(dmphe)}6(Me2Zn3O2)] (4) aggregates. The resulting compounds were characterized by1H and31P NMR spectroscopy and single-crystal X-ray diffraction analysis.
Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland.
Małgorzata
M
Wolska-Pietkiewicz
Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland.
Adam
A
Swierkosz
Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland.
Iwona
I
Justyniak
Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland.
Agnieszka
A
Grala
Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland.
Kamil
K
Sokołowski
Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland and Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland.
Janusz
J
Lewiński