1163300-93-3Relevant academic research and scientific papers
3D network structure and spin gap behavior in two new molecular magnets based on bis(maleonitriledithiolato)nickelate monoanion
Huang, Qian,Liu, Jin-fang,Zuo, Hong-rong,Zhou, Jia-rong,Hou, Yong,Ni, Chun-lin,Meng, Qing-jin
, p. 2461 - 2466 (2009)
Two new molecular magnets, based on [Ni(mnt)2]- monoanion, [DiBrBzPy][Ni(mnt)2] (1) and [DiBrBzIQl][Ni(mnt)2] (2) ([DiBrBzPy]+ = 1-(3′,5′-dibromobenzyl)pyridinium, [DiBrBzIQl]+ = 1-(3′,5′-dibromobenzyl)isoquinolinium and mnt2- = maleonitriledithiolate), were prepared and characterized by elemental analyses, IR, ESI-MS spectra, single crystal X-ray diffraction and magnetic measurements. The [Ni(mnt)2] anions and the cations of 1 and 2 are alternately stacked and form 1D column via π?π stacking interactions between the [Ni(mnt)2] anions and the neighboring cations. Some weak Ni?N, C?N interactions and C{single bond}H?Br, C{single bond}H?N hydrogen bonds between the adjacent columns further generate a 3D network structure. Magnetic susceptibility measurements show that both 1 and 2 exhibit the typical magnetic behavior of a spin gap system with an energy gap of 1151.9 K for 1 and 73.9 K for 2.
