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Gd 26 Cluster Consisting of Distorted Cubane Cores: Synthesis, Structure and Heterogeneous Catalytic Epoxidation of Olefins
Author(s) -
Sen Rupam,
Hazra Dipak K.,
Mukherjee Monika,
Koner Subratanath
Publication year - 2011
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201100118
Subject(s) - cubane , chemistry , cluster (spacecraft) , catalysis , crystallography , hydrothermal circulation , ion , hydrothermal synthesis , crystal structure , stereochemistry , organic chemistry , chemical engineering , computer science , engineering , programming language
A new Gd 26 cluster based 3D framework, {[Gd 26 (μ 6 ‐CO 3 ) 9 (NIC) 32 (μ 3 ‐OH) 26 ](NO 3 ) 2 · 3(H 2 O)} 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 Gd 3+ 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 α, β‐unsaturated ketones.