Synthesis, characterization and conducting properties of complex salts and heterobimetallic coordination polymers of the cyanodithioimidocarbonato ligand

Soluble dynamic coordination polymers as a paradigm for materials science

“…These polymers are now intensely studied due to their unusual properties provided by the metal ion, e.g. molecular-magnetism [8][9][10][11][12][13], synthetic metallic conduction [14][15][16][17], non-linear optics [18][19][20][21] and ferroelectrics [22][23][24][25], and this, in combination with the outstanding mechanical properties of conventional polymers. The possibility to modify their magnetic, electric and optical properties as well as their morphology by the choice of the involved metal ions and the manipulation of its redox properties in addition to the ligands opens pathways to a completely new class of functional materials.…”

Synthesis, X-ray crystal structures and properties of complex salts and sterically crowded heteroleptic complexes of group 10 metal ions with aromatic sulfonyl dithiocarbimates and triphenylphosphine ligand

“…The low r rt value $10 À5 S cm À1 for 1 and 2 is due to the absence of SÁ Á ÁS/MÁ Á ÁS intermolecular contacts which was identified by X-ray crystallography. The complex salts show semi-conductor behavior in the temperature range 313-453 K. The heteroleptic complexes (3)(4)(5)(6) are insulators.…”

“…Experimental details pertaining to the elemental analyses, recording of IR, UV-Vis, photoluminescence and NMR spectra, measurements of solution and pressed pellet conductivity of the complexes are same as described earlier [4,[19][20][21] r rt = 4.97 Â 10 À5 S cm À1 , E a = 0.56 eV.…”

“…Group 10 metal complexes with unsaturated dianionic 1,1-and 1,2-dithioligands where thio functions are present on the same or neighboring carbons have been the main focus of research for the design and study of molecular conductors [1][2][3][4][5]. The higher conductivities of sulfur rich complexes are mainly due to their highly extended delocalized SÁ Á ÁS/MÁ Á ÁS intermolecular stacked structures which they exhibit in the solid state.…”

Synthesis, structure and calculated NLO properties of [(n-Bu)2Sn-μ-O-μ-OH-Sn(n-Bu)2(CH3CO2)]2 and its putative derivatives

“…The ligand dipotassium cyanodithioimidocarbonato (K 2 CDC) was prepared by the literature method [25,26]. Reaction of an olive green metalloligand K 2 [Ni(CDC) 2 ] (generated in situ by treating Ni(O 2 CCH 3 ) 2 and the ligand K 2 CDC in ethanol -water mixture) with n-Bu 2 SnCl 2 in the same solvent mixture afforded a colourless oxo-, hydroxo-bridged n-butylstannoxane, [(n-Bu) 2 Sn-l-O-l-OHSn(n-Bu) 2 (CH 3 CO 2 )] 2 in 57% yield [27] instead of the anticipated heterobimetallic adduct [28] (Scheme 1).…”