Tetranuclear Nickel Complexes Composed of Pairs of Dinuclear LNi
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Fragments Linked by 4,4′‐Bipyrazolyl, 1,4‐Bis(4′‐pyrazolyl)benzene, and 4,4′‐Bipyridazine: Synthesis, Structures, and Magnetic Properties
作者:Vasile Lozan、Pavlo Y. Solntsev、Guido Leibeling、Konstantin V. Domasevitch、Berthold Kersting
DOI:10.1002/ejic.200700317
日期:2007.7
ability of the ligands 4,4'-bipyrazolyl (H 2 bpz), 1,4-bis(4'-pyrazolyl)benzene (H 2 bpzb), and 4,4'-bipyridazine (bpdz) to link two dioctahedral LNi 2 units has been examined. The following complexes were prepared: [L 1 NiII 2 (Hbpz)][BPh4] (6[BPh 4 ]), [L 1 Ni II 2 (bpdz))[CO 4 ] 2 (7[ClO 4 ] 2 ), [(L 1 Ni II 2 ) 2 (bpzb))-[BPh 4 ] 2 (8[BPh 4 ] 2 ), and [(L 2 Ni II 2 )(bpz) (9[BPh 4 ] 2 ), where (L 1 )
配体 4,4'-联吡唑基 (H 2 bpz)、1,4-双(4'-吡唑基)苯 (H 2 bpzb) 和 4,4'-联哒嗪 (bpdz) 连接两个双八面体 LNi 的能力2 单位已审查。制备了以下配合物:[L 1 NiII 2 (Hbpz)][BPh4] (6[BPh 4 ]),[L 1 Ni II 2 (bpdz))[CO 4 ] 2 (7[ClO 4 ] 2 ), [(L 1 Ni II 2 ) 2 (bpzb))-[BPh 4 ] 2 (8[BPh 4 ] 2 ),和[(L 2 Ni II 2 )(bpz) (9[BPh 4 ] 2 ),其中(L 1 ) 2- 和(L 2 ) 2- 代表大环六氮杂-二苯硫酚配体。所有配合物均已通过紫外/可见光谱、红外光谱和 X 射线晶体学表征。而 (Hbpz) - 和 bpdz 在 6[BPh 4 ] 2 和 7[ClO 4 ] 2 中作为双齿配体仅与一个