Synthesis, crystal structure and magnetic properties of bis(1,1,1,5,5,5-hexafluoropentane-2,4-dionato)manganese(II) complexes with diazine ligands

Hong DM.; Chang KH.; Lee GH.; Wang Y.; Wei HH.

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Synthesis, crystal structure and magnetic properties of bis(1,1,1,5,5,5-hexafluoropentane-2,4-dionato)manganese(II) complexes with diazine ligands

机译：具有二嗪配体的双（1,1,1,5,5,5-六氟戊烷-2,4-去离子基）锰（II）配合物的合成，晶体结构和磁性

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One dinuclear [Mn-2(hfac)(4)(mu-pyz)(H2O)(2)]2H(2)O (1) and three mononuclear complexes [Mn(hfac)(2) (pym)(H2O)] (2), [Mn(hfac)(2)(pydz)(2)] (3), and [Mn(hfac)(2)(mpydz)(2)] (4) (Hhfac = 1,1,1,5,5,5-hexafluoropentane-2,4-dione, pyz = pyrazine, pym = pyrimidine, pydz = pyridazine, and mpydz = 3-methylpyridazine) have been synthesized and their crystal structures and cryomagnetic properties have been investigated. Complex 1 has a centrosymmetric dinuclear structure with two adjacent manganese atoms linked by a pyz ligand. The geometry about each manganese atom is distorted octahedral with NO5 coordination sphere. The structure of complex 2 is a mononuclear manganese complex With a distorted octahedral geometry of NO5 coordination sphere. The crystal structures of complexes 3 and 4 consist of mononuclear manganese complex with the cis-N2O4 six-coordination sphere. The temperature dependence of magnetic data for 1 revealed a dinuclear spin (S-1 = S-2= 5/2) weak antiferromagnetic exchange interaction with J = -0.47 cm(-1). Complexes 2-4 play a cryomagnetic behaviour followed the Curie-Weiss law. (C) 1998 Elsevier Science Ltd. All rights reserved. [References: 33]

机译：一个双核[Mn-2（hfac）（4）（mu-pyz）（H2O）（2）] 2H（2）O（1）和三个单核络合物[Mn（hfac）（2）（pym）（H2O） ]（2），[Mn（hfac）（2）（pydz）（2）]（3）和[Mn（hfac）（2）（mpydz）（2）]（4）（Hhfac = 1,1， 1,5,5,5-六氟戊烷-2,4-二酮，pyz =吡嗪，pym =嘧啶，pydz =哒嗪，mpydz = 3-甲基哒嗪），并对其晶体结构和低温磁性能进行了研究。配合物1具有中心对称的双核结构，其中两个相邻的锰原子通过pyz配体连接。每个锰原子的几何形状在NO5配位球的作用下呈八面体形。配合物2的结构是单核锰配合物，其NO5配位球的八面体几何形状变形。配合物3和4的晶体结构由具有顺式-N 2 O 4六配位球的单核锰配合物组成。 1的磁性数据的温度依赖性揭示了双核自旋（S-1 = S-2 = 5/2）弱的反铁磁交换相互作用，其中J = -0.47 cm（-1）。配合物2-4遵循居里-魏斯定律发挥低温磁性行为。（C）1998 Elsevier ScienceLtd。保留所有权利。 [参考：33]

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《Polyhedron: The International Journal for Inorganic and Organometallic Chemistry》 |1998年第20期|共9页
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Hong DM.; Chang KH.; Lee GH.; Wang Y.; Wei HH.;
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1. Synthesis, crystal structure and magnetic properties of bis(1,1,1,5,5,5-hexafluoropentane-2,4-dionato)manganese(II) complexes with diazine ligands [J] . Hong DM., Chang KH., Lee GH., Polyhedron: The International Journal for Inorganic and Organometallic Chemistry . 1998,第20期

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2. Antiferromagnetic coupling of transition metal spins across pyrimidine and pyrazine bridges in dinuclear manganese(II), cobalt(II), nickel(II) and copper(II) 1,1,1,5,5,5-hexafluoropentane-2,4-dionate complexes [J] . Takayuki Ishida, Takashi Kawakami, Shin-ichi Mitsubori, Journal of the Chemical Society, Dalton Transactions. Inorganic Chemistry . 2002,第16期

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5. (1,3-Bis(2'-pyridylimino)isoindolinato)nickel(II) complexes of phenylcyanamido ligands: Crystal structure, solution and spectroscopic properties [D] . Letcher, Robert J. 1991

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机译：{2,5-双3-（叔丁基氨基羰基）苯基 -1,1-二甲基-3,4-二苯基硅基-κM} BIS（1,1,1,5,5,5-六氟戊烷-2,4 -dionato）锰（ii）
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Synthesis, crystal structure and magnetic properties of bis(1,1,1,5,5,5-hexafluoropentane-2,4-dionato)manganese(II) complexes with diazine ligands

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