coordination interaction between the guest complex [Fe(η5-C5H5)(CO)2(NH3)][PF6] and copper(II) complex 1a or nickel(II) complex lb containing crown-ether hosts. The X-ray crystal-structure analysis established that the Cu,Fe inclusion complex 2 crystallize as a centrosymmetric dimer with a CuCu separation of 3.73 Å and a novel out-of-plane CuN interaction. The magnetic parameters for 2 were obtained by ESR and
双
金属包合配合物已经由客体复合物的[Fe(η之间的第二配位体相互作用合成5 -C 5 H ^ 5)(CO)2(NH 3)] [PF 6 ]和
铜(II)配合物1A或
镍(II )复杂的含
冠醚主体的lb。X射线晶体结构分析表明,Cu,Fe夹杂物2结晶为中心对称二聚体,CuCu间距为3.73Å,且具有新颖的面外CuN相互作用。磁参数2通过ESR和ENDOR光谱法获得。低至6 K的ESR磁化率测量值排除了二聚体Cu II中心之间不存在任何反
铁磁耦合相互作用的情况。