The influence of organic agents on the resultant crystal structure in the reactions of the [Re₄Te₄(CN)₁₂]^{4?/sup> tetrahedral cluster anion with Nd3+ cations}

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• 作者：Olga A. Efremova ; Yakov M. Gayfulin ; Yuri V. Mironov ; ^{yuri@niic.nsc.ru} ; Natalia V. Kuratieva ; Anton I. Smolentsev ; Vladimir E. Fedorov
• 关键词：Rhenium tetrahedral cluster complexes ; Neodymium ; Synthesis ; Crystal structure ; Organic ligands
• 刊名：Polyhedron
• 出版年：2012
• 出版时间：4 January, 2012
• 年：2012
• 卷：31
• 期：1
• 页码：515-523
• 全文大小：1031 K

文摘

The reaction of the cluster salt K₄[Re₄Te₄(CN)₁₂]¡¤5H₂O with NdCl₃¡¤6H₂O was studied in either an acidic medium (HCl) or in a water solution in the presence of the following organic agents: hexafluoroacetylacetonate, 2,2?bipyridine or 1,10-phenanthroline (phen). The crystal structures of four new compounds have been solved by single crystal X-ray diffraction analysis: (H)[{Nd(H₂O)₅}{Re₄Te₄(CN)₁₂}]¡¤5.5H₂O (1) (space group P2₁/c, framework structure), K₂[{Nd(H₂O)₇}₂{Re₄Te₄(CN)₁₂}₂]¡¤8H₂O (2) (space group §³2/c, isolated structure), K_0.5H_0.5[{Nd(H₂O)₅}{Re₄Te₄(CN)₁₂}]¡¤3H₂O (3) (space group §³mcm, layered structure) and (phenH)[{Nd(H₂O)₂(phen)₂}{Re₄Te₄(CN)₁₂}]¡¤11H₂O (4) (space group §³2/c, chain structure). 1,10-Phenanthroline was found to have been incorporated into the structure of compound 4, whilst hexafluoroacetylacetonate and 2,2?bipyridine did not enter the structures of 2 and 3. It was shown that the structures of compounds 2-4 differ dramatically from that found for compound 1, which was obtained in the absence of the organic agents.