ABSTRACT: The preparations of the N,N-dialkylcarbamato complexes with analytical formulae [Ln(O2CNR2)3] (Ln = Pr, Nd, Eu, Gd, Ho, Er, Yb, Lu, R = iPr; Ln = Nd, Eu, Gd, R = Bu; Ln = Nd, R = Et), using [LnCl3(ether)x] (ether = THF or dimethoxyethane, DME), NHR2, and CO2 are reported. X-ray diffraction of the diisopropylcarbamato derivatives, including a reinvestigation of [Yb4(O2CNiPr2)12], showed these complexes to be tetranuclear and isotypical over a range of 12 atomic numbers. The lanthanide contraction has been evaluated based on the lengths of four different types of Ln-O bond.
N,N-dialkylcarbamato lanthanide complexes, a series of isotypical coordination compounds
BELLI, DANIELA;CALDERAZZO, FAUSTO;LABELLA, LUCA;MARCHETTI, FABIO
2004-01-01
Abstract
ABSTRACT: The preparations of the N,N-dialkylcarbamato complexes with analytical formulae [Ln(O2CNR2)3] (Ln = Pr, Nd, Eu, Gd, Ho, Er, Yb, Lu, R = iPr; Ln = Nd, Eu, Gd, R = Bu; Ln = Nd, R = Et), using [LnCl3(ether)x] (ether = THF or dimethoxyethane, DME), NHR2, and CO2 are reported. X-ray diffraction of the diisopropylcarbamato derivatives, including a reinvestigation of [Yb4(O2CNiPr2)12], showed these complexes to be tetranuclear and isotypical over a range of 12 atomic numbers. The lanthanide contraction has been evaluated based on the lengths of four different types of Ln-O bond.File in questo prodotto:
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