Sulfur-containing Organic Ligand Complexes, Synthesis, Structure And Properties Of Coordination Polymers And Supramolecular Compounds

1. In this thesis, the latest development on the complexes of organic ligands containing sulphur atoms, self-assemble of coordination polymer sand supramolecular compound by usingorganic molecules have been reviewed2. Eight complexes of light rare earths (RE=La-Tb,except for Pm) with dioctyldithiocarbamate, RE(n-C16H34NCSS)2Cl xH2O have been synthesized They are characterized by elemental analyses, UV-Vis spectra, IR spectra, H NMR spectra and TG-DTA technique. The load-carrying capacity and anti-wear properties of La, Nd dioctyldithiocarbamate are evaluated3. Three binuclear complexes, M2[(n-Bu)2NCSS]4 [M=Zn(II), Cd(II), Hg(II)] and a novel octahedral hexasilver cluster Ag6[(n-Bu)2NCSSJ6 have been prepared. The crystal and molecular structure of IIB and Ag complex have been determined by x-ray diffraction. The crystal is monoclinic and space group C2/c, and X-ray photoelectron spectroscopic, IR and UV have been characterized to study the structures and spectra properties of the complexes. The crystal of Ag complex is triclinic and space groupP-1,4. The synthesis and measurement of X-ray crystal structures of two coordination polymer [Cd(n-Bu-XA)2]n [Ag (n-Bu-XA)]n and supramolecular compound [Cd(Py)2(n-Bu-XA)2](Py=pyridine, XA=xanthate) Two coordination polymer are both two-dimensionalcoordinate bond and covalent bond networks, and their three-dimensional structure are sandwich. The distance between the adjacent layers in [Cd(n-Bu-XA)2]n is about 0 64 nm, the other is about 0.44 nm. The reaction of [Cd(n-Bu-XA)2]n with pyridine formed supramolecular compound [Cd(Py)2(n-Bu-XA)2]. The supramolecular structure is made of a layered array formed by the n - n interactions between the adjacent pyridine cycles The distance between the adjacent pyridine cycles is about 0.3 nm. All crystals belong to monoclinic system, space group P2(l)/c.5. [Cd(R-XA)2]n was assembled to supramolecular compound [Cd(R-XA)2.phen] (phenol, 10-phenanthroline) by using 1,10-phenanthroline. [Cd(Et-XA)2.phen] crystallizes in the orthorhombic, space group Pbcn, [Cd(n-Bu-XA)2.phen] belongs to monoclinic system, space group C2/c. The two compounds show a layered array formed by the n - n interactions between the adjacent phenanthroline cycles. The distance between the adjacent cycles is about 0.26 nm for [Cd(Et-XA)2.phen] and 0.33 nm for [Cd(n-Bu-XA)2 .phen], respectively.