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首页> 外文期刊>Synthetic Metals >A new hetero-spin compound derived from 1,4-bis(nitronyl nitroxide)benzene and Mn(II)hexafluoroacetylacetonate for studies on molecular magnetism
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A new hetero-spin compound derived from 1,4-bis(nitronyl nitroxide)benzene and Mn(II)hexafluoroacetylacetonate for studies on molecular magnetism

机译:一种新的由1,4-双(亚硝酰基硝基氮)苯和锰(II)六氟乙酰丙酮化物衍生的杂旋化合物,用于分子磁性研究

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摘要

A new hetero-spin compound 1 derived from 1,4-bis(nitronyl nitroxide) benzene and Mn(II) hexafluoroacetylacetonate [Mn(hfac)_2] was prepared and characterized. Its crystal structure was determined: monoclinic, P2(1), a=16.3260(7) A, b=13.7080(7) A, c=18.396(1) A, beta=68.380(5) deg, V=3827.3(3) A~3, Z=4. The intramolecular spin-spin exchange parameters for Mn(II) ion and nitronyl nitroxide unit (J_(12)=-108.3 cm~(-1)), two nitronyl nitroxide units (J_(23)=-31.0 cm~(-1)) as well as the intermolecular spin-spin coupling (zJ'=4.9 cm~(-1)) were deduced based on these magnetic data measured with SQUID.
机译:制备并表征了一种新的由1,4-双(亚硝酰基硝基氧)苯和六氟乙酰丙酮锰(II)[Mn(hfac)_2]衍生的杂旋化合物1。确定其晶体结构:单斜晶,P2(1)/ n,a = 16.3260(7)A,b = 13.7080(7)A,c = 18.396(1)A,β= 68.380(5)deg,V = 3827.3 (3)A〜3,Z = 4。 Mn(II)离子和亚硝酰基一氧化氮单元(J_(12)=-108.3 cm〜(-1)),两个亚硝酰基硝化单元(J_(23)=-31.0 cm〜(-1)的分子内自旋交换参数)以及分子间自旋-自旋耦合(zJ'= 4.9 cm〜(-1))的推论是基于用SQUID测量的这些磁数据得出的。

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