Synthesis of novel chiral Cu or Ag/S,N cluster complexes and absolute stereostructures as determined by x‐ray crystallography

Abstract

Novel chiral copper(I) and silver(I) metal complexes were synthesized from the reaction of chiral 1,3-thiazolidine-2-thione ligand with CuCl and AgOAc in dichloromethane in the presence of Et(3)N and DMAP at room temperature. Their unique crystal structures were determined by X-ray analysis. Four Cu(I) atoms and four 1,3-thiazolidine-2-thione ligands form a butterfly-type metal cluster. Six Ag(I) atoms and six 1,3-thiazolidine-2-thione ligands form another butterfly-type cluster.

Synthesis and Structural Characterization of Copper(I), Silver(I) and Gold(I) Complexes with Pyrimidine‐2‐thionato Ligands and their Adducts with Phosphanes

“…The Cu–S [2.21287(16) and 2.2668(2) Å] and Ag–S [2.4514(14)–2.4996(13) Å] bond lengths are in agreement with those found for other Cu I [2.225(7)–2.2906(13) Å] [46–48,50] or Ag I [2.439(4)–2.529(4) Å]9a,47–50 hexanuclear complexes with heterocyclic thionato ligands in which the metal atoms are in a similar trigonal planar environment.…”

“…The M–N bond lengths [M = Cu: 2.0323(4) Å; M = Ag: 2.304(4)–2.331(4) Å] are also similar to those reported for Cu I [1.978(4)–2.022(8) Å]43,50 or Ag I [2.271(11)–2.363(11) Å]9a,47,48 complexes in which the metal atom is in a similar coordination environment.…”