期刊
INORGANIC CHEMISTRY
卷 51, 期 1, 页码 483-490出版社
AMER CHEMICAL SOC
DOI: 10.1021/ic2019346
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资金
- Region Nord-Pas-De-Calais-Picardie
A series of four coordination polymers based on neodymium have been hydrothermally synthesized with different carboxylic acids as a linker. The structures of the compounds Nd-2(2,6-ndc)(3)(H2O)(3)center dot H2O (1), Nd-2(2,6-ndc)(2)(ox)(H2O)(2) (2), and Nd(2,6-ndc)(form) (3) (2,6-ndc = 2,6-naphthalenedicarboxylate; ox = oxalate; and form = formate) have been determined by single-crystal X-ray diffraction analysis. They exhibit rather dense networks built up from infinite chains of NdOpolyhedra connected to each other through the 2,6-ndc ligand. Terminal and bridging aquo species are present in the coordination sphere of Nd for 1, whereas some of them are partially replaced by oxalate groups in 2 and fully substituted by formate groups in 3. The water-free phase 3 as well as the compound Nd(form)3 (4) were considered for catalytic reaction for polymerization of isoprene in the presence of Al-based cocatalyst, affording cis-polyisoprene with good conversions. Residual Nd material with unchanged structure was found in the polymeric material. The neodymium luminescence of compounds 3 and 4 was also measured.
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