Preparation, crystal structure, and spectroscopic characterization of [NEt4]2[Cu(SPh)3]

Abstract

Supplementary Material Available: Listings of elemental analyses data, anisotropic thermal parameters, bond lengths and bond angles, and observed and calculated structure factors (14 pages). Ordering information is given on any current masthead page.

A Series of Tripodal Cysteine Derivatives as Water‐Soluble Chelators that are Highly Selective for Copper(I)

“…The C 3 -symmetrical structures of the metal complexes were built in Chem3D by imposing a trigonal planar coordination to Cu I with S À Cu distances of 2.25 . [33] As expected in these structures, the three peptide bonds of the "upper cavity" are likely to form intramolecular H-bonds involving the NH of one arm and the CO of the next arm ( Figure 4). The H···O, N···O distances are 3.1 and 3.9 , respectively and the N À H···O angle is 1378, characteristic of weak hydrogen bonds.…”

“…Such a coordination geometry was described in the solid state in Cu I complexes with monodentate sulfur ligands that were crystallised in organic solvents. [33,43] Nevertheless, to our knowledge, such complexes with a Cu I metal ion coordinated by three thiolate donor groups inducing a isolated CuS 3 centre were never described in water. The complexes Cu-L 1 and Cu-L 2 were fully characterised by UV, CD, and 1 H NMR spectroscopy and ES-MS and are especially stable (log K % 19).…”

Synthesis and X‐ray Characterization of Mono‐ and Polynuclear Thiolatocopper(I) Complexes: The Effect of Steric Bulk on Coordination Number and Nuclearity

“…The structure features a three-coordinate copper(I) center with a highly planar-trigonal geometry, as shown by the sum of the angles around the metal atom (360.0°). Three www.eurjic.org [21][22][23] These latter complexes were obtained under different reaction conditions, the main difference being the significantly lower ligand to metal stoichiometry employed in our case. This suggests that the coordination number of three is favored for the copper(I) center in this system.…”

Flexible CuI–Thiolate Clusters with Relevance to Metallothioneins

“…Among the common Cu n clusters (n = 4, [12] 6, [8,9] 7 [13] and 8 [10,11] ) known to be present in Cu-MT, the varied ligation number of the thiolate ion (CysS m , m = 4 to 11) contributes to the diverse stoichiometry that one can anticipate in Cu-MT clusters. Accordingly, many examples of monodentate thiolatocopper(I) clusters have been reported so far by X-ray crystallography [14][15][16] [CuS 2 , [17] CuS 3 , [18,19] Cu 2 S 2 , [20] Cu 3 S 3 , [21] Cu 4 S 4 , [22] Cu 4 S 6 , [18,[23][24][25][26] Cu 5 S 6 , [27,28] Cu 5 S 7 , [29] Cu 6 S 4 (in this work) Cu 7 S 8 , [30] Cu 8 S 8 [31] and Cu 12 S 12 [32] ]. 6 ] (4).…”