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Solvothermal reaction of CuC1 with bphpzm in CH3CN resulted in the formation of the title compound [ Cu (o.-CI) (bphpzm)] n( 1 ), which was structurally characterized by elemental analysis, IR, and single-crystal X-ray diffraction analysis. 1 belongs to the monoclinic system with space group C2 and a = 3. 272 5 (8) nm, b = O. 395 28 (9) nm,c=l.311 8(3) nm,a = y = 90&deg,,/3= 100.465(5)°,V=1.668 7(7) nm3, CIgHI6CICuN4,Mr = 399.35 ,Do = 1. 590 g/cm3 ,Z = 4, F(000) = 816,R1 =0.028 7 ,wR2 --0. 052 7 ,S = 1. Compound 1 possesses the split-stair chain [ Cu(I*-CI) ] n chains that are bridged by bphpzm to form one two-dimensional network. In 1, each Cu atom is coordinated by two CI and two N atoms, forming a distorted tetrahedral coordination geometry. The Cu-N and Cu-CI distance are 0.208 2 nm, 0.237 9 nm, respectively. [ABSTRACT FROM AUTHOR]

TiB-TiB2 ceramic composites are in situ synthesized by spark plasma sintering technique under a pressure of 50 MPa, with sintering temperature ranging from 800 °C to 1 700 °C and a heating rate of 150 °C/min, using Ti and TiB2 powders. Microstructures and mechanical properties of the composites sintered at different temperatures were investigated. According to the microstructure evolution of the composites, the description of the sintering process can be divided into 3 stages: splashing of metal Ti under the discharge effect, reaction of the molten Ti with TiB2, and rapid densification of the composites due to the rapid solid-state diffusion and large plastic deformation result from the Joule heating effect and pressure loading effect. [ABSTRACT FROM AUTHOR]

Using the oxidation number (Zi), the valence electron orbit energy (Ei) and the number of valence electron shell (ni), a new topological index mG was proposed from δi. The corresponding 0, 1 indexes of mG were fitted with the F center energy band, lattice energy, standard entropy, internuclear distance, bond length, melting point, magnetic susceptibility and bond length of alkali halides. Some regression equations were suggested, and their related coefficients ( re-coefficient ) is 0. 993 0,0. 998 1 (0. 998 1 ), - 0. 993 1,0. 995 2 (0. 995 2 ), 0. 948 1, -0. 988 0 and -0. 993 8. The obtained results are better than those used in literature. [ABSTRACT FROM AUTHOR]