Syntheses, spectra, crystal structures and magnetic properties of molecular solids based on the M(mnt)(2)(-) ion (M = Ni, Pt)

Ni CL; Li YZ; Dang DB; Gao S; Ni ZP; Tian ZF; Wen LL; Meng QJ

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Syntheses, spectra, crystal structures and magnetic properties of molecular solids based on the M(mnt)(2)(-) ion (M = Ni, Pt)

机译：基于M（mnt）（2）（-）离子（M = Ni，Pt）的分子固体的合成，光谱，晶体结构和磁性

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Two new ion-pair complexes [1-(4'-nitrobenzyl)-4-aminopyridinium]-bis(maleonitriledithiolato)nickel ([NO(2)BzPyNH(2)][Ni(mnt)(2)]) (1) and [1-(4-nitrobenzyl)-4-aminopyridinium]-bis(maleonitriledithiolato)platinum ([NO(2)BzPyNH(2)][Pt(mnt)(2)]) (2) have been prepared and characterized by elemental analyses, IR, electronic and MS spectra, single crystal X-ray diffraction and magnetic susceptibility. 1 and 2 crystallize in the monoclinic space group P2(1)/c, a = 12.331(3) angstrom, b = 26.937(6) angstrom, c = 7.322(2) angstrom, V 2349.0(10) angstrom(3), Z = 4 for 1, and a = 10.600(3) angstrom, b = 8.376(2) angstrom, c = 27.089(7) angstrom, V = 2 3 62.2(11) angstrom(3), Z = 4 for 2. The Ni(III) ions of 1 form a 1D zigzag chain within a Ni(mnt)(2)(-) column, while 2 is a dimer. Magnetic susceptibility and DSC measurements for 1 in the temperature range 2.0-300 K show the occurrence of an unusual magnetic phase transition around 160 K, and an antiferromagnetic interaction in the high-temperature phase (HT) and a spin gap in the low-temperature phase (LT), while 2 is diamagnetic. (c) 2005 Elsevier Ltd. All rights reserved.

机译：两个新的离子对络合物[1-（4'-硝基苄基）-4-氨基吡啶]-双（马来腈三硫代硫醇）镍（[NO（2）BzPyNH（2）] [Ni（mnt）（2）]）（1）并制备了[1-（4-硝基苄基）-4-氨基吡啶]-双（马来腈三硫代巯基）铂（[NO（2）BzPyNH（2）] [Pt（mnt）（2）]）（2）并进行了表征元素分析，IR，电子和MS光谱，单晶X射线衍射和磁化率。 1和2在单斜空间群P2（1）/ c中结晶，a = 12.331（3）埃，b = 26.937（6）埃，c = 7.322（2）埃，V 2349.0（10）埃， Z = 4代表1，a = 10.600（3）埃，b = 8.376（2）埃，c = 27.089（7）埃，V = 2 3 62.2（11）埃（3），Z = 4代表2。 1的Ni（III）离子在Ni（mnt）（2）（-）柱内形成一维锯齿形链，而2为二聚体。在2.0-300 K的温度范围内对1的磁化率和DSC测量表明，在160 K附近发生了异常的磁相变，并且在高温相（HT）中发生了反铁磁相互作用，在低温下发生了自旋隙相位（LT），而2是反磁性的。（c）2005 Elsevier Ltd.保留所有权利。

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来源
《Polyhedron: The International Journal for Inorganic and Organometallic Chemistry》 |2005年第13期|共8页
作者
Ni CL; Li YZ; Dang DB; Gao S; Ni ZP; Tian ZF; Wen LL; Meng QJ;
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正文语种 eng
中图分类化学;
关键词
maleonitriledithiolate; 1-(4 '-nitrobenzyl)-4-aminopyridinium; nickel (III) complex; platinum (III) complex; crystal structures; magnetic properties; INTERMOLECULAR INTERACTIONS; FERROMAGNETIC INTERACTION; METAL-COMPLEXES; MALEONITRILEDITHIOLATE; BEHAVIOR; CATION; SALTS; DIMERIZATION; TEMPERATURE; TRANSITION;

机译：顺丁烯二腈;1-（4'-硝基苄基）-4-氨基吡啶;镍（III）配合物;铂（III）配合物;晶体结构;磁性;分子间相互作用;铁磁相互作用;金属配合物;丙二腈;行为;阳离子;盐;数字化;温度;过渡;

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Syntheses, spectra, crystal structures and magnetic properties of molecular solids based on the M(mnt)(2)(-) ion (M = Ni, Pt)

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