Polymorphic Lanthanide Phosphonates Showing Distinct Magnetic Behavior

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• 作者：Dai Zeng ; Min Ren ; Song-Song Bao ; Zhong-Sheng Cai ; Chang Xu ; Li-Min Zheng
• 刊名：Inorganic Chemistry
• 出版年：2016
• 出版时间：June 6, 2016
• 年：2016
• 卷：55
• 期：11
• 页码：5297-5304
• 全文大小：496K
• 年卷期：0
• ISSN：1520-510X

文摘

A series of layered lanthanide phosphonates α-Ln(2-qpH)(SO₄)(H₂O)₂ (α-Ln; Ln = Gd, Tb, Ho, Er) and β-Ln(2-qpH)(SO₄)(H₂O)₂ (β-Ln; Ln = Gd, Tb, Ho, Er, Yb) (2-qpH₂ = 2-quinolinephosphonic acid) have been synthesized and characterized. Compounds α-Ln crystallize in monoclinic space group P2₁/c, while compounds β-Ln crystallize in triclinic space group P1̅. Magnetic studies reveal that dominant ferromagnetic interactions are propagated between the magnetic centers in all cases. Field-induced magnetic relaxation is observed in compounds β-Er and β-Yb.