reaction of coordinatively unsaturated Co(II) PCP pincer complexes with nitric oxide leads to the formation of new, air-stable, diamagnetic mono nitrosyl compounds. The synthesis and characterization of five- and four-coordinate Co(III) and Co(I) nitrosyl pincer complexes based on three different ligand scaffolds is described. Passing NO through a solution of [Co(PCPNMe-iPr)Cl], [Co(PCPO-iPr)Cl] or
配位不饱和的Co(II)PCP钳形配合物与
一氧化氮的反应导致形成新的,空气稳定的,抗磁性的单亚
硝酰基化合物。描述了基于三种不同
配体支架的五坐标和四坐标的Co(III)和Co(I)亚
硝酰基钳夹配合物的合成和表征。使NO通过[Co(PCP NMe - i Pr)Cl],[Co(PCP O - i Pr)Cl]或[Co(PCP
CH2 - i Pr)Br]溶液导致低自旋形成具有强烈弯曲的NO
配体的复合物[Co(PCP- i Pr)(NO)X]。用(X = Cl,Br)AgBF 4处理后一种导致
氯化物的提取和形成[Co(PCP- i Pr)(NO)] +类型的带有线性NO基团的阳离子方平面Co(I)配合物。如果将NO计为NO +,则该反应可被视为是
金属中心被NO从自由基从Co(III)还原为Co(I)的形式上的两个电子还原。因此,根据Enemark–Feltham约定,这些系统可以描述为CoNO}