Ni(II), Pd(II) and Pt(II) complexes with SacNac tridentate ligand

Helical dinuclear transition metal complexes with bis(bidentate) [S,N] ligands: synthesis, structural and computational studies

“…35 The most common synthetic route to the β-thioketoimine proligands, HSacNac, is the thionation of the corresponding β-ketoimine precursors with Lawesson's reagent. 20,23,36,37 Following this precedent, conversion of H21 to H22 proceeded straightforwardly (Scheme 1), without the need for column chromatography, to afford the bis(bidentate) [N,S] proligand H22 in 40% yield. Single crystals of H22 were grown from a CH2Cl2 solution at room temperature.…”

“…17, 18 Wu and co-workers employed a dinucleating ligand with two aminothiophenolate [N,S] binding domains separated by a rigid 1,3-bis(methylene)phenylene spacer to synthesise a higher-nuclear (Zn10) circular helicate. 19 There are a growing number of complexes reported with β-thioketoiminate ([SacNac] -) ligands, which have been proposed as interesting candidates for electrochemical and biological applications, [20][21][22][23] but have only recently attracted attention in catalysis. 24 Herein, we report the synthesis of an acyclic homoditopic ligand featuring two isolated [N,S] binding sites and its corresponding dinuclear complexes with first row transition metals Fe, Co and Zn.…”

Denticity governs the formation of β-thioketiminato tri-copper(i) and mono-copper(i) complexes

“…5 Using these approaches, several main group and transition metal complexes have been synthesized and also utilized for different biological and catalytic applications. [6][7][8] The replacement of one nitrogen donor with a softer sulfur atom in the SacNac (Chart 1) ligand, resulting in a hybrid ligand with a combination of hard and soft donor atoms within the ligand moiety, has inspired chemists to focus on new insights in coordination chemistry. 9,10 SN chelator ligands forming a degree of planar ⇌ tetrahedral confor-mations by N-aryl or N-alkyl substitutions on tetracoordinated bis-chelate nickel complexes were reported.…”

Effect of chalcogen bonding interactions on molecular structures; theoretical and crystallographic studies on two palladium(ii) acetate complexes

“…[9][10][11][12] Pt(II) and Pd(II) complexes composed of NNS tridentate pincer ligands were found to have significant biological activities. [13][14][15][16][17][18][19] Both metals have similar chemistry but the later has less side effects and better solubility, which led researchers to focus on Pd(II) complexes as antitumor drugs. [13][14][15][16][17][18][19] Palladium complexes [Pd II (HY)Cl] built from H 2 Y(SNN) pincer ligands were previously prepared in our laboratory.…”

“…[13][14][15][16][17][18][19] Both metals have similar chemistry but the later has less side effects and better solubility, which led researchers to focus on Pd(II) complexes as antitumor drugs. [13][14][15][16][17][18][19] Palladium complexes [Pd II (HY)Cl] built from H 2 Y(SNN) pincer ligands were previously prepared in our laboratory. 20 The ligand H 2 Y (Scheme 1, left) was bound in anionic form to Pd(II) to form neutral cis and trans isomers.…”