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Preparation and Structures of Rare Earth 3-Benzoylpropanoates and 3-Phenylpropanoates

Version 2 2024-06-06, 09:29
Version 1 2020-09-23, 14:15
journal contribution
posted on 2024-06-06, 09:29 authored by NC Thomas, OA Beaumont, GB Deacon, C Gaertner, CM Forsyth, Anthony SomersAnthony Somers, PC Junk
Rare earth (RE) complexes of 3-benzoylpropanoate (bp), [RE(bp)3(H2O)n] (RE=La, n=2; RE=Y, Ce, Pr, Nd, Yb, n=1) and 3-phenylpropanoate (pp), [RE(pp)3] (RE=Y, La, Ce, Nd, Yb), have been prepared by metathesis reactions between the corresponding rare earth chloride and the appropriate sodium carboxylate. Analysis by single-crystal X-ray diffraction finds that both RE bp and pp complexes favour formation of carboxylate-bridged 1-D coordination polymers in the solid state. Here, the former favours heteroleptic 9 or 10-coordinate complexes (splitting between Ce and La) with the carbonyl remaining uncoordinated but participating as a hydrogen bond acceptor with water in the coordination sphere. Lack of bp carbonyl coordination leaves this group available for surface interactions during corrosion inhibition and complex solubilization. The latter pp derivatives form eight-coordinate complexes for Y and Yb and are the first examples of homoleptic RE pp complexes to be reported.

History

Journal

Australian Journal of Chemistry

Volume

73

Pagination

1250-1259

Location

Melbourne, Vic.

ISSN

0004-9425

eISSN

1445-0038

Language

English

Publication classification

C1 Refereed article in a scholarly journal

Issue

12

Publisher

CSIRO Publishing

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