The “solid angle sum rule”: A new ligand cone packing model of optimal applicability in organolanthanoid chemistry, part I
Identifieur interne : 001284 ( Istex/Curation ); précédent : 001283; suivant : 001285The “solid angle sum rule”: A new ligand cone packing model of optimal applicability in organolanthanoid chemistry, part I
Auteurs : R. Dieter Fischer [Allemagne] ; Xing-Fu LiSource :
- Journal of The Less-Common Metals [ 0022-5088 ] ; 1985.
Abstract
As a result of the systematic evaluation of about forty published molecular structures of organolanthanoid(III) complexes, the so-called “solid-angle-sum (SAS) rule” suggests that optimal coordinative saturation is verified for the comparatively small SAS value of 0.73. Here, 4π·SAS is the sum of the individual solid angles of all ligands surrounding one central metal ion (Ln3+). On the basis of empirical standard values of the “solid angle factors”, SAF = SA4π, of various frequently occurring ligands, the SAS-rule allows reasonable predictions to be made of the relative stabilities of distinct members of numerous complex families, particularly as a function of the ionic radius of the respective central metal ion (including also La3+, Y3+ and Sc3+).
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DOI: 10.1016/0022-5088(85)90038-4
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Xing-Fu Li<affiliation><mods:affiliation>Application Department, Institute of High Energy Physics, Academia Sinica, P.O. Box 2732, BeijingChina</mods:affiliation><wicri:noCountry code="subField">BeijingChina</wicri:noCountry></affiliation>Le document en format XML
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