A hexanuclear copper（Ⅰ） cluster [Cu6(C5H4NS)6] was synthesized by means of the hydrothermal reaction of [Cu(PPh3)2（MeCN）2]ClO4 with（2-mercaptopyridine-1-oxide） in the presence of 2-butanol,Et3N and water and characterized by elemental analysis,IR,TGA and solid state fluorescence spectroscopy as well as X-ray diffractometry.The crystallographic data for the title complex,C15H12Cu3N3S3,are Mr=521.08,monoclinic space group P2（1）/n and the cell parameters are: a=0.958 59（6） nm,b=（1.604 85（12） nm）,（c=）0.122 712（10） nm,β=108.863（2）°,V=1.786 4（2） nm3,Z=4,Dc=（1.937 Mg/m3）,R1=0.030 1,ωR2=0.031 5（I>2σ（I））,F（000）=1 032,μ=3.890 mm-1,R（int）=0.050 1,S=0.598.The title complex exhibits highly thermal stability and strong low energy fluorescence（（λ=）744 nm） when it is irradiated by the light（λ=468 nm） in solid state at room temperature.
