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More on multiple bonds

The perchlorate example illustrates the fact that the correct geometry is predicted even when terminal oxygen is assumed formally to bond always as =O, giving a total of 'eight' bonds to Cl. This is nowhere clearer than in the calculation for the carboxyl carbon in ethanoate (acetate) for which the modified Lewis structure includes a '5-valent' carbon (procedure 3), but nevertheless generates the correct answer.

A VSEPR tutorial on the WWW

VSEPR tutorial on the WWW, URL:
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Document served: Monday 29th May, 2017