For Au III) coordinated to Cl and Au(I) coordinated to S the XANES energies show the same trend as that calculated.
In addition, by limiting the number of variables, i.e. normal-mode coordinates, to be optimized, we minimize the possibility of over-fitting.
It is widely accepted that Cu(I) coordinates first to the terminal alkyne to form a copper(I) acetylide.
The related homo-[2]catenate 159 (Scheme 46 b), in which each ring contains a bidentate dpp unit and a tridentate terpy site, exhibits more complicated behavior.[ 144] In dpp,dpp-[ 159-Cu I] the copper ion coordinates to the two dpp units in the usual tetrahedral arrangement.
In the GkPOT study the first crystal structure was obtained with a sulfate ion coordinated in the same position as the phosphono moiety of the peptide, i.e. coordinated to Glu310 (Fig. 3) [51].
It consists of a gold(I) center linearly coordinated to triethylphosphine and to 3,4,5 triacetyloxy-6- acetyloxymethyl)oxane-2-thiolate, triacetyloxy-6- acetyloxymethyl
In this expression, observations with x i coordinates closer to the focal point x are weighted more strongly in the computation of the fitted value E ^ (y | x ).
CN− is an imperfect mimic of compound I (with two atoms coordinated to the iron versus one oxygen), so potentially the larger halides could bind productively at site Br1 after compound I is formed.
Here we present the preparation of 14 pairs of cis- and trans-diammine monochlorido platinum II) complexes, coordinated to heterocycles (i.e., imidazole, 2-methylimidazole and pyrazole) and linked to various acylhydrazones, which were designed as potential inhibitors of the selenium-dependent enzymes glutathione peroxidase 1 (GPx-1) and thioredoxin reductase 1 (TrxR-1).
For 5, only one oxygen of L2 coordinated to Ag(I) ions.
