Heteroleptic Metal-Organic Frameworks of Lanthanides (Lа, Ce, and Ho) Based on Ligands of the Anilate Type and Dicarboxylic Acids
O. Yu. Trofimova, A. V. Maleeva, К. В. Арсеньева, A. V. Klimashevskaya, Anton V. Cherkasov, Alexandr V. Piskunov
Abstract
Abstract New heteroleptic metal-organic frameworks of lanthanides, units of which contain anionic organic ligands of two types, are prepared by the solvothermal synthesis in N,N-dimethylformamide (DMF). The cross-linked coordination polymer [Ho2(CA)2(Bdc)·4DMF] (I) and two scaffold derivatives [La2(pQ)2(Bpdc)·4DMF] (II) and [Ce2(CA)(Bdc)2·4DMF]·2DMF (III·2DMF), where CA is chloranilic acid dianion, pQ is 2,5-dihydroxy-3,6-di-tert-butyl-para-benzoquinone dianion, Bdc is terephthalic acid dianion, and Bpdc is 4,4'-biphenyldicarboxylic acid dianion, are synthesized. The structures of compounds I, II, and III·2DMF are studied by X-ray diffraction (XRD) (CIF file CCDC nos. 2212230, 2212231, and 2212232, respectively).