Issue 25, 2007
From the journal:

Dalton Transactions

Facile construction of novel organolanthanide square-planar macrocycles through addition of carbodiimide to an amino group

Liping Ma,a   Jie Zhang,*a   Ruifang Cai,a   Zhenxia Chena  and  Xigeng Zhou*a  

* Corresponding authors

a Department of Chemistry, Fudan University, Shanghai, People's Republic of China

Abstract

The reactivity of lanthanocene derivatives containing the p-aminothiophenolate ligand towards carbodiimide was examined. Reaction of Cp2Ln(p-SC6H4NH2)(THF) with RN[double bond, length as m-dash]C[double bond, length as m-dash]NR in THF at room temperature gave four novel organolanthanide guanidinate complexes [Cp2Ln(p-SC6H4N(H)C(NHR)[double bond, length as m-dash]NR)]4 (R = iPr, Ln = Yb (1a), Er (1b); R = Cy, Ln = Yb (2a), Er (2b)), formed by the addition of the C[double bond, length as m-dash]N double bonds of the carbodiimide molecule to the para-position amino group. Their unique square-planar macrocycle structures have been determined through X-ray single-crystal diffraction analysis. This result provides a potential method for the construction of organolanthanide macrocycles.

Graphical abstract: Facile construction of novel organolanthanide square-planar macrocycles through addition of carbodiimide to an amino group

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Article information

DOI
https://doi.org/10.1039/B700845G
Article type
Paper
Submitted
18 Jan 2007
Accepted
13 Apr 2007
First published
01 May 2007

Dalton Trans., 2007, 2718-2722

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Facile construction of novel organolanthanide square-planar macrocycles through addition of carbodiimide to an amino group

L. Ma, J. Zhang, R. Cai, Z. Chen and X. Zhou, Dalton Trans., 2007, 2718 DOI: 10.1039/B700845G

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