Defining the Speciation, Coordination Chemistry, and Lewis Acid Catalysis of Electronically Diverse Zinc Benzoates.

10 From this analysis, we observed a clear trend where the Zn 4 O(O 2 CAr) 6 cluster has only been reported for benzoates with σ p ranging from +0.06 to −0.83. 7 , 33 , 34 The mononuclear solvate has been reported over a range of σ p = −0.17 to +0.78. 14 , 29 , 30 , 35 − 40 These data clearly indicate that when σ p is positive, stable formation of the hydrate, Zn(O 2 CAr) 2 (H 2 O) 2 , can persist, whereas, if σ p is negative, the tetranuclear cluster is accessible.

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