Crystal Structure of the Nd, Gd, and Dy Sandwich Complexes Involving 8-Membered Macrocyclic Phenylsiloxanolate Ligands
Document Type
Article
Language
eng
Publication Date
1-1993
Publisher
Springer
Source Publication
Russian Chemical Bulletin
Source ISSN
1066-5285
Abstract
An X-ray structural investigation of the interaction products of anhydrous trivalent neodymium, gadolynium, and dysprosium chlorides with sodium phenylsiloxanolate was carried out. The synthesized compounds with the general formula Na6[PhSiO2]8M4(μ4-O)[O2SiPh]8 · 10EtOH · 8H2O (M = Nd, Gd, Dy) were found to be isomorphous isostructural sandwich complexes. The macrocyclic octaphenyloctasiloxanolate ligands in the complexes have anall-cis-configuration and are arranged in co-axial antiparallel pairs and coordinate the square planar groups of the four Nd3+, Gd3+, or Dy3+ ions stabilized by an additional central μ4-bridging O2− ligand. Six Na+ counterions form the outer coordination sphere of the complexes such that four of them coordinate the siloxane macrocycle O atoms in pairs in analogy with crown-ether complexes.
Recommended Citation
Igonin, V. A.; Lindeman, Sergey; Struchkov, Yu T.; Molodtsova, Yulia A.; Pozdnyakova, Yu. A.; Shchegolikhina, Olga I.; and Zhdanov, Alexandr A., "Crystal Structure of the Nd, Gd, and Dy Sandwich Complexes Involving 8-Membered Macrocyclic Phenylsiloxanolate Ligands" (1993). Chemistry Faculty Research and Publications. 712.
https://epublications.marquette.edu/chem_fac/712
Comments
Russian Chemical Bulletin, Vol. 42, No. 1 (January 1993): 176-181. DOI.
Sergey Lindeman was affiliated with Russian Academy of Sciences at the time of publication.