[NiCl4]2- is paramagnetic while [Ni(CO)4] is diamagnetic though both are tetrahedral. Why ?

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asked Dec 29, 2017 in Chemistry by sforrest072 (157,439 points) 61 410 942

[NiCl4]2- is paramagnetic while [Ni(CO)4] is diamagnetic though both are tetrahedral. Why ?

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answered Dec 29, 2017 by mdsamim (213,225 points) 5 10 15
selected Dec 29, 2017 by sforrest072
 
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In [NiCl4]-2, Ni has 3d84s0 configuration, Cl-' can’t pair up while in [Ni(CO)4], Ni has 3d84s2 configuration, CO pair up electrons

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