Organolanthanide tetrahydroborates. Ligation geometry and coordinative saturation

Tobin J Marks, Gregory W. Grynkewich

Research output: Contribution to journalArticle

62 Citations (Scopus)

Abstract

This work reports the synthesis and spectral (infrared, Raman) characterization of the series of compounds (η5-C5H5)2LnBH 4·THF, where Ln = Sm, Er, Yb. Vibrational spectra indicate that the mode of BH4- coordination is sensitive to the metal ionic radius. The Ln = Sm compound is proposed to have tridentate BH4- ligation, whereas the Ln = Yb compound is proposed to have bidentate ligation. The tetrahydrofuran can be removed for Ln = Yb and Er to yield complexes of the composition (η5-C5H5)2LnBH4. Vibrational spectra are similar to those of Be(BH4)2 and CH3Zn(BH4), suggesting a polymeric structure with bridging BH4- groups. All data suggest appreciable ionic character in the bonding of the tetrahydroborate ligand to the trivalent lanthanides.

Original languageEnglish
Pages (from-to)1302-1307
Number of pages6
JournalInorganic Chemistry
Volume15
Issue number6
Publication statusPublished - 1976

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Vibrational spectra
vibrational spectra
saturation
Lanthanoid Series Elements
Geometry
tetrahydrofuran
geometry
Metals
Ligands
Infrared radiation
ligands
radii
synthesis
Chemical analysis
metals

ASJC Scopus subject areas

  • Inorganic Chemistry

Cite this

Organolanthanide tetrahydroborates. Ligation geometry and coordinative saturation. / Marks, Tobin J; Grynkewich, Gregory W.

In: Inorganic Chemistry, Vol. 15, No. 6, 1976, p. 1302-1307.

Research output: Contribution to journalArticle

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