[Er2Al2(OiPr)12(HOiPr)2], a Novel Heterobimetallic Alkoxide

Autor:	M. Wijk, Mikael Kritikos, Gunnar Westin
Rok vydání:	1998
Předmět:	Denticity Hydrogen bond Stereochemistry Ligand Chemistry Infrared spectroscopy General Medicine Crystal structure General Biochemistry Genetics and Molecular Biology Metal Crystallography chemistry.chemical_compound visual_art Alkoxide visual_art.visual_art_medium Molecule
Zdroj:	Acta Crystallographica Section C Crystal Structure Communications. 54:576-578
ISSN:	0108-2701
DOI:	10.1107/s0108270197017460
Popis:	A new heterobimetallic tetranuclear alkoxide of the Er—Al system, [Al2Er2(C3H7O)12(C3H8O)2], has been synthesized and characterized by single-crystal X-ray diffraction and IR spectroscopy. Hexakis(μ2-isopropoxo)hexakis(isopropoxo)bis(2-propanol) dialuminiumdierbium has the linear composition [(OiPr)2Al]-(μ2-OiPr)2-[(HOiPr)Er(OiPr)]-(μ2-OiPr)2-[(OiPr)Er(HOiPr)]-(μ2-OiPr)2– [Al(OiPr)2]. The inner pair of Er atoms are each sixfold coordinated and the outer Al atoms are each fourfold coordinated by O atoms. Two intra­molecular hydrogen bonds exist, each one between the 2-propanol group at the Er atom and the monodentate isopropoxo ligand at the adjacent Al atom. The adopted chain geometry of four alkoxo-bridged metal atoms is a rather unusual structural feature for heterobimetallic (M2M′2) alkoxides.
Databáze:	OpenAIRE
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