1210055-47-2Relevant academic research and scientific papers
Crystallographic characterisation of novel Zn(II) silsesquioxane complexes and their application as initiators for the production of polylactide
Jones, Matthew D.,Keir, Callum G.,Johnson, Andrew L.,Mahon, Mary F.
, p. 312 - 316 (2010/04/04)
Herein, the solid state structures of the products from the reaction of the silsesquioxane triol (iso-C4H9)7Si7O12(OH)3 (1) with two equivalents of ZnMe2 in both THF and toluene are reported. In both cases tetrametallic Zn(II) complexes were isolated, with toluene [(iso-C4H9)7Si7O12]2Zn4Me2 (2) was prepared while performing the reaction in THF the analogous complex [(iso-C4H9)7Si7O12]2Zn4Me2(THF)2 (3) was formed. Both species have also been characterised via 1H, 13C{1H} and 29Si{1H} NMR spectroscopy, which confirm the solid state structures are maintained in solution. Both 2 and 3 show modest activities for the polymerisation of rac-lactide and a heterogeneous catalyst has also been prepared.
