
TY  - JOUR
A1  - Bilyk, Alexander 
A1  - Hall, Annegret K. 
A1  - Harrowfield, Jack M. 
A1  - Hosseini, Mir Wais 
A1  - Skelton, Brian W. 
A1  - White, Allan H. 
T1  - A Unique Rare-Earth Cluster within a Calixarene Sandwich: Parallels in the Chemistry of Cyclosiloxanes and Calixarenes
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 2001
VL  - 53
IS  - 12
SP  - 895
EP  - 898
KW  - Rare-earth cluster; calixarene; neodymium cluster.
UR  - https://doi.org/10.1071/CH00152 
N2  - Determination of the crystal structure of a complex obtained by the reaction of the dimethyl sulfoxide (dmso) solvate of neodymium(III) nitrate with p-t-butyltetrathiacalix&#91;4&#93;arene in dimethylformamide (dmf) in the presence of base showed a regular, planar cluster of four neodymium atoms bridged by a hydroxyl group to be sandwiched between two fully deprotonated calixarene moieties. The sulfur and oxygen donor atoms of the calixarenes are both involved in coordination to the rare-earth atoms. Both dmf and dmso are found as ligands on neodymium but occupation of the calixarene cavity is by dmf only. The proposed overall stoichiometry of the complex is &#91;Nd4(OH)&#123;(p-t-butyltetrathiacalix&#91;4&#93;arene-4H)(dmf)&#125;2(dmf)6(dmso)2&#93;(NO3)3.3H2O. 
ER  -

