Why dont we call all the compound as cordination compounds? except hydrides and halides. because all the compound having cation and complex anion

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Bojidarka B. Ivanova

Mr. Mariappan,

The notion of 'coordination chemistry' is already well described. Could you write your concept for coordination compounds in more detail?

Vladimir V. Shilovskikh

Usually the rule is that at least one bond in coordination compound is based on dative (otherwords, coordinate) bond (e.g. NaCl is not coordinate compound due to ionic nature of bonding). On the other hand, presence of cation is not required, e.g. Fe(CO)5 is a C.C. with Fe(0).