Journal
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
Volume -, Issue 18, Pages 2826-2831Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejic.201100118
Keywords
Gadolinium; Cluster compounds; Hydrothermal synthesis; Epoxidation; Heterogeneous catalysis; Framework solids
Categories
Funding
- Department of Science and Technology (DST), Government of India [SR/S1/IC-01/2009]
- DST
- Council of Scientific and Industrial Research (CSIR) [09/096(0551)2k8-EMR-I]
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A new Gd-26 cluster based 3D framework, {[Gd-26(mu(6)-CO3)(9)-(NIC)(32)(mu(3)-OH)(26)](NO3)(2)center dot 3(H2O)}(n) (1) (NIC = nicotinato anion) has been prepared through hydrothermal synthesis and characterised by single-crystal X-ray diffraction. The Gd-26 clusters are formed by the combination of five distorted cubane cores attached to each other through six Gd3+ ions. The Gd-26 clusters are then connected to each other by organic linkers forming a 3D framework. The dimensions of the spherical cluster shell including the organic ligands is around 2.32(4) nm. The compound catalyses the heterogeneous epoxidation of olefinic substrates including alpha, beta-unsaturated ketones.
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