The X-Ray Crystallography Evidence of Selective Co-Crystallization Between [Au I  6 Ag I  3 Cu II  3 ] 3+  Chiral Metallo-Supramolecular Complex and Λ‒[Co(EDTA)] −  Isomer

Benny Wahyudianto; Tatsuhiro Kojima; Nobuto Yoshinari; Takumi Konno

doi:10.22146/ijc.105741

The X-Ray Crystallography Evidence of Selective Co-Crystallization Between [Au^I₆Ag^I₃Cu^II₃]³⁺ Chiral Metallo-Supramolecular Complex and Λ‒[Co(EDTA)]⁻ Isomer

https://doi.org/10.22146/ijc.105741

Benny Wahyudianto^(1*), Tatsuhiro Kojima⁽²⁾, Nobuto Yoshinari⁽³⁾, Takumi Konno⁽⁴⁾

(1) Department of Chemistry, Graduate School of Science, The University of Osaka, 1-1 Machikaneyamacho, Toyonaka, Osaka 560-0043, Japan
(2) Department of Chemistry, Graduate School of Science, The University of Osaka, 1-1 Machikaneyamacho, Toyonaka, Osaka 560-0043, Japan; Department of Applied Chemistry, Kobe City College of Technology, Kobe 651-2194, Japan
(3) Department of Chemistry, Graduate School of Science, The University of Osaka, 1-1 Machikaneyamacho, Toyonaka, Osaka 560-0043, Japan
(4) Department of Chemistry, Graduate School of Science, The University of Osaka, 1-1 Machikaneyamacho, Toyonaka, Osaka 560-0043, Japan; Department of Chemistry, College of Science, National Taiwan Normal University, Taipei 11677, Taiwan
(*) Corresponding Author

Abstract

Co-crystalization is a beneficial method to combine two molecules possessing different charges into a single crystal form. Here, we coincidentally crystallized 12-nuclear complex cation of [Au^I₆Ag^I₃Cu^II₃(tdme)₂(D-pen)₆]³⁺ (D-pen²⁻ = D-penicillaminate, tdme = 1,1,1-tris(diphenylphosphinomethyl)ethane), [Au^I₆Ag^I₃Cu^II₃]³⁺ and [Co(EDTA)] (EDTA = ethylenediaminetetraacetate) complex anion. The complex salt was obtained from a mixed reaction solution of [Au^I₆Ag^I₃Cu^II₃](TFA)₃ (TFA = trifluoroacetate) and rac-K[Co(EDTA)] through a slow evaporation process. Single crystal X-ray diffraction analysis indicated that a new hybrid complex [{Au₆Ag₃Cu₃}{Co(EDTA)}](TFA)₂ (1), which contains only the Λ configurational isomer of [Co(EDTA)]⁻ through the Cu−O coordination bond.

Keywords

single crystal X-ray diffraction; hybrid complex; chirality

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References

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DOI: https://doi.org/10.22146/ijc.105741

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