Trans influence in a mer-octahedral triiodidolanthanide: triiodidotris(tetrahydrofuran-kappaO)ytterbium(III).
In: Acta crystallographica. Section C, Crystal structure communications, Jg. 65 (2009-11-01), Heft Pt 11, S. m422-5
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Zugriff:
The structure of the six-coordinate title complex, [YbI(3)(C(4)H(8)O)(3)], is the first mer-octahedral form of an LnI(3)L(3) lanthanide (Ln) compound with neutral L ligands, and is closely related to that of several of the seven-coordinate LnX(3)L(4) series of compounds, where X = Cl, Br or I and L = tetrahydrofuran (THF), isopropanol, pyridine or water. A structural trans effect can be assigned to YbI(3)(THF)(3), in contrast to the LnX(3)L(4) compounds, where steric and crystal packing effects are significant. The Yb-I bond lengths are 2.9543 (4) and 2.9151 (6) A for I trans and cis to I, respectively, and the Yb-O bond lengths are 2.299 (5) and 2.251 (3) A for O trans and cis to I, respectively. The crystal packing allows for six contact distances as weak C-H...I interactions in the range 3.10-3.24 A. The title molecule has a crystallographic twofold axis passing through a THF O atom, the trans I atom and the Yb atom.
| Titel: |
Trans influence in a mer-octahedral triiodidolanthanide: triiodidotris(tetrahydrofuran-kappaO)ytterbium(III).
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| Autor/in / Beteiligte Person: | Emge, TJ ; Kornienko, A ; Brennan, JG |
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| Zeitschrift: | Acta crystallographica. Section C, Crystal structure communications, Jg. 65 (2009-11-01), Heft Pt 11, S. m422-5 |
| Veröffentlichung: | <2008- > : Malden, MA : Wiley-Blackwell ; <i>Original Publication</i>: Copenhagen : Published for the International Union of Crystallography by Munksgaard, c1983-, 2009 |
| Medientyp: | academicJournal |
| ISSN: | 1600-5759 (electronic) |
| DOI: | 10.1107/S0108270109038268 |
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