TY - JOUR
T1 - Crystallographic characterisation of novel Zn(II) silsesquioxane complexes and their application as initiators for the production of polylactide
AU - Jones, M D
AU - Keir, C G
AU - Johnson, A L
AU - Mahon, M F
N1 - 2009 Young Investigator Special Issue
PY - 2010/1/13
Y1 - 2010/1/13
N2 - Herein, the solid state structures of the products from the reaction of the silsesquioxane trio (iso-C4H9)(7)Si7O12(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)(7)Si7O12](2)Zn4Me2 (2) was prepared while performing the reaction in THF the analogous complex [(iso-C4H9)(7)Si7O12](2)Zn4Me2(THF)(2) (3) was formed. Both species have also been characterised via H-1, C-13{H-1} and Si-29{H-1} 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. (C) 2009 Elsevier Ltd. All rights reserved.
AB - Herein, the solid state structures of the products from the reaction of the silsesquioxane trio (iso-C4H9)(7)Si7O12(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)(7)Si7O12](2)Zn4Me2 (2) was prepared while performing the reaction in THF the analogous complex [(iso-C4H9)(7)Si7O12](2)Zn4Me2(THF)(2) (3) was formed. Both species have also been characterised via H-1, C-13{H-1} and Si-29{H-1} 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. (C) 2009 Elsevier Ltd. All rights reserved.
UR - http://www.scopus.com/inward/record.url?scp=78149339860&partnerID=8YFLogxK
UR - http://dx.doi.org/10.1016/j.poly.2009.05.024
U2 - 10.1016/j.poly.2009.05.024
DO - 10.1016/j.poly.2009.05.024
M3 - Article
VL - 29
SP - 312
EP - 316
JO - Polyhedron
JF - Polyhedron
IS - 1
ER -