Size and charge effect of guest cations in the formation of polyoxopalladates: a theoretical and experimental study.

ABSTRACT: The development of rational synthetic procedures with desired nuclearity and high selectivity is a critical issue in inorganic chemistry. Here we demonstrate a comprehensive understanding of the template effect induced by metal cations in the formation mechanism of the class of polyoxopalladates ({MPd12L8} nanocube and {MPd15L10} nanostar) by combining computational and experimental techniques. The capture of a M n+ guest ion by a peripheral palladium(ii)-oxo shell leads to a competition between the parent Pd2+ addenda ion and the respective guest metal ion. The present study reveals that (i) the selection of the incorporated guest ion has a thermodynamic control, (ii) the main factors governing the formation of a particular polyanion are the charge and size of the guest cation, (iii) the

SUBMITTER: Lang Z 

PROVIDER: S-EPMC5674179 | biostudies-literature | 2017 Nov

REPOSITORIES: biostudies-literature