Features of the molecular structure of organochromiumoxane yttriumoxane alumoxane oligomers

An Aluminum Telluride with a Terminal Al=Te Bond and its Conversion to an Aluminum Tellurocarbonate by CO2 Reduction

“…Bond lengths of Al1À O1 (1.865(4) Å), Al1À O3 (1.824(3) Å), Al1À O6 (1.871 (4) Å) are within the range of typical AlÀ O single bond (ca. 1.87 Å), [23] whereas Al1À O5 (2.028(4) Å) is notably longer than this single bond length. CÀ O bond lengths for the AlÀ μÀ O 2 CÀ Te unit (C32À O5 1.268(7) Å, C32À O6 1.317 (7) Å) fall between the typical ranges for CÀ O single and double bonds, [24] supporting the idea of a formal twoelectron reduction of CO 2 and being consistent with delocalization of the π-electron density over the entirety of the CO 2 fragment.…”