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Observation of Strong Antiferromagnetic Exchange Interactions in [1-(4′-methobenzyl)isoquinolinium][Ni(mnt)2]: Crystal Structures, Magnetic Properties

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Abstract

An new ion-pair compound, [CH3BzQl][Ni(mnt)2] (1), (CH3BzQl = 1-(4′-methobenzyl)isoquinolinium and mnt2− = maleonitriledithiolate), has been synthesized, structurally and magnetically characterized. The [Ni(mnt)2]− anions (A) and [CH3BzIQl]+ cations (C) of 1 alternate to form a mixed columnar stack in the manner of ···ACAC··· along the a-axis, and the neighboring columns connect together to generate a three-dimensional (3D) network structure via intermolecular H-bonding interactions and van der Waals forces. Variable-temperature magnetic susceptibility measurements in the temperature range 2–300 K show that 1 is a spin gap system with strong antiferromagnetic interaction.

Graphical Abstract

An new ion-pair compound of [CH3BzQl][Ni(mnt)2] (1) has been synthesized , structurally and magnetically characterized. The anions and cations of 1 alternate to form a mixed columnar stack and show the magnetic character of spin gap system with strongly antiferromagnetic interaction.

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Acknowledgments

The authors thank the Science and Technology Department of Jiangsu Province, for financial support (Grant No.: BK2007184).

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Authors and Affiliations

  1. Department of Chemistry, Nanjing Xiaozhuang College, Nanjing, 210017, People’s Republic of China

    Hong Zhou & Hai-Bao Duan

  2. College of Science, Nanjing University of Technology, Nanjing, 210009, People’s Republic of China

    Zhen-Fang Tian & Hui Zhang

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  1. Hong Zhou
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  2. Hai-Bao Duan
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  3. Zhen-Fang Tian
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  4. Hui Zhang
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Correspondence to Hai-Bao Duan.

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Zhou, H., Duan, HB., Tian, ZF. et al. Observation of Strong Antiferromagnetic Exchange Interactions in [1-(4′-methobenzyl)isoquinolinium][Ni(mnt)2]: Crystal Structures, Magnetic Properties. J Chem Crystallogr 41, 684–687 (2011). https://doi.org/10.1007/s10870-010-9952-y

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  • DOI: https://doi.org/10.1007/s10870-010-9952-y

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