Syntheses, Characterization, and Magnetic Studies of Copper(II) Complexes with the Ligand N,N,N鈥?i>,N鈥?Tetrakis(2-pyridylmethyl)-1,3-benzenediamine (1,3-tpbd) and its Phenol Derivative 2,6-

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• 作者：Sabrina Turba ; Simon P. Foxon ; Alexander Beitat ; Frank W. Heinemann ; Konstantin Petukhov ; Paul M眉ller ; Olaf Walter ; Francesc Lloret ; Miguel Julve ; Siegfried Schindler
• 刊名：Inorganic Chemistry
• 出版年：2012
• 出版时间：January 2, 2012
• 年：2012
• 卷：51
• 期：1
• 页码：88-97
• 全文大小：475K
• 年卷期：v.51,no.1(January 2, 2012)
• ISSN：1520-510X

文摘

The copper(II) complexes [Cu₄(1,3-tpbd)₂(H₂O)₄(NO₃)₄]_n(NO₃)_4n路13nH₂O (1), [Cu₄(1,3-tpbd)₂(AsO₄)(ClO₄)₃(H₂O)](ClO₄)₂路2H₂O路0.5CH₃OH (2), [Cu₄(1,3-tpbd)₂(PO₄)(ClO₄)₃(H₂O)](ClO₄)₂路2H₂O路0.5CH₃OH (3), [Cu₂(1,3-tpbd){(PhO)₂PO₂}₂]₂(ClO₄)₄ (4), and [Cu₂(1,3-tpbd){(PhO)PO₃}₂(H₂O)_0.69(CH₃CN)_0.31]₂(BPh₄)₄路Et₂O路CH₃CN (5) [1,3-tpbd = N,N,N鈥?i>,N鈥?tetrakis(2-pyridylmethyl)-1,3-benzenediamine, BPh₄^{鈥?/sup> = tetraphenylborate] were prepared and structurally characterized. Analyses of the magnetic data of 2, 3, 4, and [Cu₂(2,6-tpcd)(H₂O)Cl](ClO₄)₂ (6) [2,6-tpcd = 2,6-bis[bis(2-pyridylmethyl)amino]-p-cresolate] show the occurrence of weak antiferromagnetic interactions between the copper(II) ions, the bis-terdentate 1,3-tpbd/2,6-tpcd, 渭₄-XO₄ (X = As and P) 渭_1,2-OPO and 渭-O_phenolate appearing as poor mediators of exchange interactions in this series of compounds. Simple orbital symmetry considerations based on the structural knowledge account for the small magnitude of the magnetic couplings found in these copper(II) compounds.}