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Crystal Chemistry of the Saccharinato Complexes of Trivalent Lanthanides and Yttrium

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Crystal Chemistry of the Saccharinato Complexes of Trivalent Lanthanides and Yttrium

Auteurs : Oscar E. Piro ; Eduardo E. Castellano [Brésil] ; Enrique J. Baran [Argentine]

Source :

ZAAC ‐ Journal of Inorganic and General Chemistry [ 0044-2313 ] ; 2002-03.

RBID : ISTEX:3C875EC82D11C7BE5A5D0B150D59C237BAAA7A64

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Wicri :
- topic : Collecte de données.

English descriptors

Abstract

Saccharinate complexes of the fourteen trivalent lanthanide cations and YIII were prepared by reaction between the respective lanthanide carbonates and saccharin in aqueous solution. Their crystal structures were determined by single crystal X‐ray diffractometry. They represent three different structural types. The first family, of composition [Ln(sac)(H2O)8](sac)2�H2O (sac = anion of saccharin; Ln = La, Ce, Pr, Nd.Sm, Eu), belongs to the monoclinic space group P21/c with Z = 4 and the LnIII cation is in a tricapped trigonal prismatic environment with nine‐fold oxygen coordination. The second group of composition [Ln(sac)2(H2O)6]‐(sac)(Hsac)�4H2O with Ln = Gd, Dy, Ho, Er, Yb, Lu, and Y, pertains to the triclinic P1¯‐ space group, with Z = 2 and constitutes a new example of complexes containing simultaneously saccharin and its anion in the lattice. The TmIII and TbIII compounds, which are also triclinic (space group P1¯‐ and Z = 2) present two closely related structures conformed by three and two [Ln(sac)(H2O)7]2+ crystallographically independent complexes, respectively, with the [Tm(sac)(H2O)7]3(sac)6�9H2O and [Tb(sac)(H2O)7]2(sac)4�6H2O composition. For all the heavier lanthanides (Gd‐Lu) and yttrium the cation presents eight‐fold oxygen coordination, with the ligands at the corners of a slightly distorted square Archimedean antiprism.

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https://api.istex.fr/document/3C875EC82D11C7BE5A5D0B150D59C237BAAA7A64/fulltext/pdf

DOI: 10.1002/1521-3749(200203)628:3<612::AID-ZAAC612>3.0.CO;2-G

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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Acta crystallogr</term>
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<term>Ambient conditions</term>
<term>Angular settings</term>
<term>Anion</term>
<term>Anorg</term>
<term>Baran</term>
<term>Baran table</term>
<term>Bond distances</term>
<term>Carbonyl oxygen atom</term>
<term>Castellano</term>
<term>Cation</term>
<term>Chem</term>
<term>Chemical formula</term>
<term>Ciencias exactas</term>
<term>Corresponding saccharinate ligand</term>
<term>Crystal chemistry</term>
<term>Crystal data</term>
<term>Crystal system space group</term>
<term>Data collection</term>
<term>Data collection procedures</term>
<term>Difference fourier</term>
<term>Dihedral angle</term>
<term>Displacement ellipsoids</term>
<term>Empirical formula formula weight crystal crystal size</term>
<term>First family</term>
<term>Full lines</term>
<term>Graphite monochromator absorption scan width</term>
<term>Independent reflections</term>
<term>Index ranges reflections</term>
<term>Intensity collection parameters</term>
<term>Ionic radii</term>
<term>Lanthanide</term>
<term>Ligand</term>
<term>Lniii cation</term>
<term>Metal centers</term>
<term>Monoclinic space group</term>
<term>Ortep</term>
<term>Other hand</term>
<term>Oxygen atoms</term>
<term>Oxygen coordination</term>
<term>Piro</term>
<term>Previous determinations</term>
<term>Priii cation</term>
<term>Refinement results</term>
<term>Reflection decay</term>
<term>Saccharin</term>
<term>Saccharinate</term>
<term>Saccharinate ligands</term>
<term>Saccharinate rings</term>
<term>Saccharinato</term>
<term>Saccharinato complexes</term>
<term>Single crystals</term>
<term>Site symmetry</term>
<term>Space group</term>
<term>Square archimedean antiprism</term>
<term>Standard range</term>
<term>Structural data</term>
<term>Structure determination methods</term>
<term>Tbiii</term>
<term>Tbiii complexes</term>
<term>Tmiii</term>
<term>Triclinic</term>
<term>Trivalent</term>
<term>Trivalent lanthanide cations</term>
<term>Trivalent lanthanides</term>
<term>Uncomplexed saccharinate anions</term>
<term>Unit cell</term>
<term>Unit cell dimensions</term>
<term>Unit cell parameters</term>
<term>Universidad nacional</term>
<term>Water bath</term>
<term>Water molecules</term>
<term>Water molecules distances</term>
<term>Water oxygen atoms</term>
<term>Yttrium</term>
<term>Yttrium table</term>
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<keywords scheme="Teeft" xml:lang="en"><term>Acta crystallogr</term>
<term>Allg</term>
<term>Ambient conditions</term>
<term>Angular settings</term>
<term>Anion</term>
<term>Anorg</term>
<term>Baran</term>
<term>Baran table</term>
<term>Bond distances</term>
<term>Carbonyl oxygen atom</term>
<term>Castellano</term>
<term>Cation</term>
<term>Chem</term>
<term>Chemical formula</term>
<term>Ciencias exactas</term>
<term>Corresponding saccharinate ligand</term>
<term>Crystal chemistry</term>
<term>Crystal data</term>
<term>Crystal system space group</term>
<term>Data collection</term>
<term>Data collection procedures</term>
<term>Difference fourier</term>
<term>Dihedral angle</term>
<term>Displacement ellipsoids</term>
<term>Empirical formula formula weight crystal crystal size</term>
<term>First family</term>
<term>Full lines</term>
<term>Graphite monochromator absorption scan width</term>
<term>Independent reflections</term>
<term>Index ranges reflections</term>
<term>Intensity collection parameters</term>
<term>Ionic radii</term>
<term>Lanthanide</term>
<term>Ligand</term>
<term>Lniii cation</term>
<term>Metal centers</term>
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<term>Other hand</term>
<term>Oxygen atoms</term>
<term>Oxygen coordination</term>
<term>Piro</term>
<term>Previous determinations</term>
<term>Priii cation</term>
<term>Refinement results</term>
<term>Reflection decay</term>
<term>Saccharin</term>
<term>Saccharinate</term>
<term>Saccharinate ligands</term>
<term>Saccharinate rings</term>
<term>Saccharinato</term>
<term>Saccharinato complexes</term>
<term>Single crystals</term>
<term>Site symmetry</term>
<term>Space group</term>
<term>Square archimedean antiprism</term>
<term>Standard range</term>
<term>Structural data</term>
<term>Structure determination methods</term>
<term>Tbiii</term>
<term>Tbiii complexes</term>
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<term>Unit cell dimensions</term>
<term>Unit cell parameters</term>
<term>Universidad nacional</term>
<term>Water bath</term>
<term>Water molecules</term>
<term>Water molecules distances</term>
<term>Water oxygen atoms</term>
<term>Yttrium</term>
<term>Yttrium table</term>
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<front><div type="abstract" xml:lang="en">Saccharinate complexes of the fourteen trivalent lanthanide cations and YIII were prepared by reaction between the respective lanthanide carbonates and saccharin in aqueous solution. Their crystal structures were determined by single crystal X‐ray diffractometry. They represent three different structural types. The first family, of composition [Ln(sac)(H2O)8](sac)2�H2O (sac = anion of saccharin; Ln = La, Ce, Pr, Nd.Sm, Eu), belongs to the monoclinic space group P21/c with Z = 4 and the LnIII cation is in a tricapped trigonal prismatic environment with nine‐fold oxygen coordination. The second group of composition [Ln(sac)2(H2O)6]‐(sac)(Hsac)�4H2O with Ln = Gd, Dy, Ho, Er, Yb, Lu, and Y, pertains to the triclinic P1¯‐ space group, with Z = 2 and constitutes a new example of complexes containing simultaneously saccharin and its anion in the lattice. The TmIII and TbIII compounds, which are also triclinic (space group P1¯‐ and Z = 2) present two closely related structures conformed by three and two [Ln(sac)(H2O)7]2+ crystallographically independent complexes, respectively, with the [Tm(sac)(H2O)7]3(sac)6�9H2O and [Tb(sac)(H2O)7]2(sac)4�6H2O composition. For all the heavier lanthanides (Gd‐Lu) and yttrium the cation presents eight‐fold oxygen coordination, with the ligands at the corners of a slightly distorted square Archimedean antiprism.</div>
</front>
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Crystal Chemistry of the Saccharinato Complexes of Trivalent Lanthanides and Yttrium

Crystal Chemistry of the Saccharinato Complexes of Trivalent Lanthanides and Yttrium

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English descriptors

Abstract

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