Solvothermal Synthesis And Characterization Of Copper Tin Chalcogenidometalates

Chalcogenidometalates are the important inorganic materials. Chalcogenidometalates not only possess the properties for traditional microporous materials but also own a promising prospect in many fields such as photocouductor, photoluminescence, non-linear optics and fast-ion conductor. Therefore, synthesis and properties of microporous Chalcogenidometalates are the compound research. It has received the attention of the masses of workers. In recent years, solvothermal (hot water) method has synthesized a variety of microporous chalcogenidometalates. Among them, the most in the family of the main metal elements and sulfur elements as the main body of the ternary microporous sulfide, transition metal sulfide due to the low solubility of easy formation of precipitation, so difficult to assemble into the transition metal skeleton, makes the transition metal especially multiple pores that are rich in transition metal sulfur compound coverage is very limited. Taking more sulfur root Sx2" ion as mineralizer solves the solvothermal (hot water) method in the synthesis of copper sulfide dissolves hard problem, under the guiding role of proton, organic amine, constructed on the basis of Cu-S structure unit microporous sulfur compound. To the introduction of tin element, the synthesis of quaternary Cu Sn-S sulfur compound, and the synthesis conditions, structure features and related properties of research.Solvothermal (hot water) method with the protonation of organic amine as template agent, synthetic compounds Cu6S6 (1).Compound 1 as the hexgonal system, space group P63/mmc, the crystal cell parameters for a= 3.8005 (7) A, b= 3.8005 (7)A, c= 16.378 (6) A, α= 90.00°, β=90.00°,γ=120.00 °.Compound 1 Cu2+ (Cu2) and Cu+ (Cu1), Cu1 and S form tetrahedron structure unit, Cu2 and S plane triangle formed structure unit. Structural unit through Shared vertices S connection, adjacent Cul-S layer by S-S covalent bond connection, two Cu1-S alternating layers along the c axis accumulation; Adjacent Cu1 -s and Cu2 -S layer through sharing connected vertices S. Compound 1 is a compact structure.Solvothermal (hot water) method with the protonation of organic amine as template agent, an excess of S2 ion mineralization under the synthetic compounds (CH3NH3)2 Cu2Sn2S6 (2). Compound 2 is monoclinic system, space group of C2/c, the crystal cell parameters for a=11.052 (10) A, b= 11.031 (10)A, c=23.64 (2)A, α= 90.00°, β= 96.787 ° (18),γ= 90.00 °. Compound 2 is to introduce Sn4- into Cu-S system, and CuS4 tetrahedron, SnS4 tetrahedron are the structure units skeleton structure, methylamine as the balance of the protonation of the cationic filled in the hole..