Cyclooligosiloxanolate cluster complexes of transition metals and lanthanides

• Published in: Journal of molecular catalysis. A, Chemical Vol. 107; no. 1; pp. 313 - 321
• Main Authors: Zucchi, C., Shchegolikhina, O.I., Borsari, M., Cornia, A., Gavioli, G., Fabretti, A.C., Rentschler, E., Gatteschi, D., Ugo, R., Psaro, R., Pozdniakova, Yu.A., Lindeman, S.V., Zhdanov, A.A., Pályi, G.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Amsterdam Elsevier B.V 01-05-1996; Elsevier
• Subjects: Chemistry; Cluster complexes; Condensed matter: structure, mechanical and thermal properties; Coordination compounds; Cyclooligosiloxanolate clusters; Exact sciences and technology; Inorganic chemistry and origins of life; Inorganic compounds; Lanthanides; Metal complexes; Physics; Preparations and properties; Siloxanolate; Structure of solids and liquids; crystallography; Structure of specific crystalline solids; Transition metals; Siloxanolate; Transition metals; Cluster complexes; Lanthanides; Cyclooligosiloxanolate clusters; Molecular structure; Organic ligand; Organic siloxane; Complex cluster; Anionic complex; Tetranuclear complex; Gadolinium Complexes; Experimental study; X ray diffraction; Oxo complex; Sodium Compounds; Cyclic voltammetry; Mu complex; Lanthanide Complexes; Electrochemical reaction; Crystalline structure
• ISSN: 1381-1169; 1873-314X
• DOI: 10.1016/1381-1169(95)00230-8

Cyclooligosiloxanolate complexes of higher valent transition metals and lanthanides were synthesized and characterized by single-crystal X-ray diffraction experiments, spectra, cyclic voltammetry, conductivity and magnetic behaviour. These complexes are sandwich-type clusters containing assemblies of 4 to 8 metals between siloxanolate ligand ‘layers’. A high degree of electron delocalization in the metal containing fragment of these complexes is detected by electrochemical and magnetic measurements. The synthesis, crystal and molecular structure determined by X-ray diffraction of Na
6{[C
6H
5SiO
2)
8]
2Gd
4(
μ
4-O)} is reported.