Air-stable dinuclear complexes [(bmsab)Ni^II(tmsab)Ni^II(bmsab)]^3– and [(bmsab)Zn^II(tmsab)Zn^II(bmsab)]^3– (bmsab = bis(methanesulfoneamido)benzene, tmsab = tetra(methanesulfonamido)benzene) were prepared via a synthetic route based on heteroleptic precursor complexes. The new complexes combine a distorted tetrahedral coordination environment with an open-shell bridging ligand. The Zn^II species was subjected to a detailed investigation of the (spectro-)electrochemical processes. The Ni^II species is a rare example of a complex that combines strong exchange coupling (J > 440 cm^–1) with pronounced positive zero-field splitting (D = +72 cm^–1). Combining SQUID magnetometry and (HF)EPR spectroscopy with ab initio calculations allowed for accurate quantification of the exchange interaction.

中文翻译：

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具有自由基桥的四配位 ZnII 和 NiIII 离子的空气稳定双核配合物：氧化还原活性和反铁磁耦合的详细研究

空气稳定双核配合物 [(bmsab)Ni ^II (tmsab)Ni ^II (bmsab)] ^3–和 [(bmsab)Zn ^II (tmsab)Zn ^II (bmsab)] ^3– (bmsab = 双(甲磺酰氨基)苯, tmsab =四（甲磺酰氨基）苯）是通过基于杂配前体配合物的合成路线制备的。新的配合物将扭曲的四面体配位环境与开壳桥联配体结合起来。对Zn ^II物质的（光谱）电化学过程进行了详细研究。 Ni ^{II物质是结合了强交换耦合 (} J > 440 cm ^–1 ) 和明显的正零场分裂 ( D = +72 cm ^–1 )的复合物的罕见例子。将 SQUID 磁力测量和 (HF)EPR 光谱与从头计算相结合，可以准确量化交换相互作用。