Preparation and structures of rare earth 3-Benzoylpropanoates and 3-Phenylpropanoates

Thomas, Nicholas C., Beaumont, Owen A., Deacon, Glen B., Gaertner, Cornelius, Forsyth, Craig M., Somers, Anthony E., and Junk, Peter C. (2020) Preparation and structures of rare earth 3-Benzoylpropanoates and 3-Phenylpropanoates. Australian Journal of Chemistry, 73 (12). pp. 1250-1259.

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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.

Item ID: 64724
Item Type: Article (Research - C1)
ISSN: 1445-0038
Copyright Information: © CSIRO 2020
Funders: Australian Research Council (ARC)
Projects and Grants: ARC grant DP200100568
Date Deposited: 21 Oct 2020 08:22
FoR Codes: 34 CHEMICAL SCIENCES > 3402 Inorganic chemistry > 340203 F-block chemistry @ 100%
SEO Codes: 28 EXPANDING KNOWLEDGE > 2801 Expanding knowledge > 280105 Expanding knowledge in the chemical sciences @ 100%
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