Field, Valence-Bond, and Molecular Orbital Theories

Crystal Field, Valence-Bond, and Molecular Orbital Theories 

Given this background on the basic tenets and principal advantages and disadvantages of CFT, VBT, and MOT, it is not surprising that we concentrate on CFT for the visualization of the bonding in coordination compounds. 

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The crystal field, valence-bond, and molecular orbital theories (respectively, CFT, VBT, and MOT) were all viable explanations of the bonding in coordination compounds. CFT treats the M-L interaction as exclusively electrostatic, whereas VBT treats it as the overlap of appropriate native and hybrid atomic orbitals. MOT constructs multinuclear molecular orbitals analogous to the mononuclear atomic orbitals. CFT, particularly with an allowance for some small degree of covalent character, is the most valuable bonding theory available, particularly at the beginning leveL... 

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