Trans influence in a mer-octa-hedral triiodidolanthanide: Triiodidotris(tetra-hydro-furan-O)ytterbium(III)

Thomas Emge, A. Kornienko, John Brennan

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7 Citations (Scopus)

Abstract

The structure of the six-coordinate title complex, [YbI3-(C 4H8O)3], is the first mer-octa-hedral form of an LnI3 L3 lanthanide (Ln) compound with neutral L ligands, and is closely related to that of several of the seven-coordinate LnX3 L4 series of compounds, where X = Cl, Br or I and L = tetra-hydro-furan (THF), isopropanol, pyridine or water. A structural trans effect can be assigned to YbI3(THF)3, in contrast to the LnX3 L4 compounds, where steric and crystal packing effects are significant. The Yb - I bond lengths are 2.9543 (4) and 2.9151 (6) Å for I trans and cis to I, respectively, and the Yb - O bond lengths are 2.299 (5) and 2.251 (3) Å for O trans and cis to I, respectively. The crystal packing allows for six contact distances as weak C - H⋯I inter-actions in the range 3.10-3.24 Å. The title molecule has a crystallographic twofold axis passing through a THF O atom, the trans I atom and the Yb atom.

Original languageEnglish (US)
JournalActa Crystallographica Section C: Crystal Structure Communications
Volume65
Issue number11
DOIs
StatePublished - Nov 18 2009

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Ytterbium
Bond length
Atoms
Lanthanoid Series Elements
Crystals
2-Propanol
Ligands
Molecules
Water
furan

All Science Journal Classification (ASJC) codes

  • Biochemistry, Genetics and Molecular Biology(all)

Cite this

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title = "Trans influence in a mer-octa-hedral triiodidolanthanide: Triiodidotris(tetra-hydro-furan-O)ytterbium(III)",
abstract = "The structure of the six-coordinate title complex, [YbI3-(C 4H8O)3], is the first mer-octa-hedral form of an LnI3 L3 lanthanide (Ln) compound with neutral L ligands, and is closely related to that of several of the seven-coordinate LnX3 L4 series of compounds, where X = Cl, Br or I and L = tetra-hydro-furan (THF), isopropanol, pyridine or water. A structural trans effect can be assigned to YbI3(THF)3, in contrast to the LnX3 L4 compounds, where steric and crystal packing effects are significant. The Yb - I bond lengths are 2.9543 (4) and 2.9151 (6) {\AA} for I trans and cis to I, respectively, and the Yb - O bond lengths are 2.299 (5) and 2.251 (3) {\AA} for O trans and cis to I, respectively. The crystal packing allows for six contact distances as weak C - H⋯I inter-actions in the range 3.10-3.24 {\AA}. The title molecule has a crystallographic twofold axis passing through a THF O atom, the trans I atom and the Yb atom.",
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N2 - The structure of the six-coordinate title complex, [YbI3-(C 4H8O)3], is the first mer-octa-hedral form of an LnI3 L3 lanthanide (Ln) compound with neutral L ligands, and is closely related to that of several of the seven-coordinate LnX3 L4 series of compounds, where X = Cl, Br or I and L = tetra-hydro-furan (THF), isopropanol, pyridine or water. A structural trans effect can be assigned to YbI3(THF)3, in contrast to the LnX3 L4 compounds, where steric and crystal packing effects are significant. The Yb - I bond lengths are 2.9543 (4) and 2.9151 (6) Å for I trans and cis to I, respectively, and the Yb - O bond lengths are 2.299 (5) and 2.251 (3) Å for O trans and cis to I, respectively. The crystal packing allows for six contact distances as weak C - H⋯I inter-actions in the range 3.10-3.24 Å. The title molecule has a crystallographic twofold axis passing through a THF O atom, the trans I atom and the Yb atom.

AB - The structure of the six-coordinate title complex, [YbI3-(C 4H8O)3], is the first mer-octa-hedral form of an LnI3 L3 lanthanide (Ln) compound with neutral L ligands, and is closely related to that of several of the seven-coordinate LnX3 L4 series of compounds, where X = Cl, Br or I and L = tetra-hydro-furan (THF), isopropanol, pyridine or water. A structural trans effect can be assigned to YbI3(THF)3, in contrast to the LnX3 L4 compounds, where steric and crystal packing effects are significant. The Yb - I bond lengths are 2.9543 (4) and 2.9151 (6) Å for I trans and cis to I, respectively, and the Yb - O bond lengths are 2.299 (5) and 2.251 (3) Å for O trans and cis to I, respectively. The crystal packing allows for six contact distances as weak C - H⋯I inter-actions in the range 3.10-3.24 Å. The title molecule has a crystallographic twofold axis passing through a THF O atom, the trans I atom and the Yb atom.

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