A dimeric aluminium hydroxide supported by a new disiloxide ligandElectronic supplementary information (ESI) available: Crystal data and structure refinement of 2-4, and synthesis and analytical data of 1-4. CCDC reference numbers 778866-778868. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c0dt00507j

The synthesis and structure of a dimeric aluminium hydroxide complex containing the novel chelating 1,4-disiloxide ligand [CH 2 {Me(Me 3 Si) 2 Si} 2 SiO] 2 2− ( 2 ) − 2H is reported. [CH 2 {Me(Me 3 Si) 2 Si} 2 SiO] 2 AlOH ( 4 ) was prepared by careful hydrolysis of [CH 2 {Me(Me 3 Si) 2 Si} 2 SiO] 2 AlMe·THF ( 3 ). The synthesis and structure of a dimeric aluminium hydroxide complex containing the novel chelating 1,4-disiloxide ligand [CH 2 {Me(Me 3 Si) 2 Si} 2 SiO] 2 2− ( 2 ) − 2H is reported. [CH 2 {Me(Me 3 Si) 2 Si} 2 SiO] 2 AlOH ( 4 ) was prepared by careful hydrolysis of [CH 2 {Me(Me 3 Si) 2 Si} 2 SiO] 2 AlMe·THF ( 3 ).