Rui-Feng Hu

A novel ligand-unsupported 3D framework polymer of trimeric copper(I)) and its NLO property

A novel 3-D coordination polymer with trimeric copper (I) unit, [Cu(3)(CN)(IN)(2)](n)(IN = isonicotinate), was hydrothermally synthesized by the reaction of Cu(NO(3))(2).3H(2)O with isonicotinic and terephthalic acids. The structure was characterized to be a twofold interpenetrated 3-D coordination network polymer with two-coordinated copper(I). It has a powder SHG efficiency about that of KDP.

Tetrakis(pyridinium-2-thiolato)zinc(II) dinitrate.

The crystal structure of the title compound, [Zn(C(5)H(5)NS)(4)](NO(3))(2), consists of a [Zn(C(5)H(5)NS)(4)](2+) (C(5)H(5)NS is pyridinium-2-thiolate) cation and two nitrate anions. The central Zn(II) atom lies at a site with imposed -4 symmetry and is surrounded by four S atoms [Zn-S = 2.3371 (5) A] from four symmetrical pyridinium-2-thiolate ligands in a distorted tetrahedral geometry. There are N-H.O hydrogen-bonding interactions between the pyridinium-2-thiolate ligands and nitrate O atoms. In addition, pi-pi interactions via aromatic N-containing ligands are discussed.

A new polymorph of tetraethyl­ammonium tris(μ-acetato-O,O′)­tri-μ-chloro-tri­chloro-μ3-oxo-triangulo-trimolybdenum

The title compound, [(C2H5)4N][Mo3Cl6O(C2H3O2)3], has been synthesized by the reaction of MoCl3·3H2O with CH3COOH. The structure is a polymorph of the structure reported by Chen, Lu, Huang, Huang & Huang [Chin. J. Struct. Chem. (1993). 12, 117–123]. The crystal contains discrete cations and anions. The mono-oxo-capped trinuclear Mo cluster anion consists of three Cl atoms and three acetate groups that bridge the three edges of the Mo triangle; each Mo atom is also coordinated by one terminal Cl atom. The coordination around Mo is a distorted octahedron.