题目内容

配合物K3[FeF6]的磁矩为5.9玻尔磁子,而K3[Fe(CN)6]的磁矩为1.9玻尔磁子,这种差别的原因是( )

A. Fe在这两种配合物中具有不同的氧化值
B. K3[Fe (CN) 6]不是配合物
C. F原子比C原子的电负性大,使CN-比F-有更强的配位能力
D. 在配体CN-的影响下,中心离子d轨道的电子发生了重排

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