Tetranuclear Cu(I)complex,Cu4(imdt)(NO3)4.6H2O(imdt=1,3-imidazolidine-2-thione),was synthesized by areaction of Cu(NO3)2with imdt in water.It crystallizes in monoclinic crystal system,space group C2/c(No.15),with a =3.1418(3)nm,b =0.94332(6) nm,c =2.3027(2) nm,β=119.773(3)°,V =5.9236(9) nm3,Z =4,Mr=1529.68.mol-1,Dc.=1.715g.cm-3,μ=1.815 mm-1,F(000) =3144,R1=0.028,wR2=0.065.The crystal structure consists of tetranuclear[Cu4(imdt)9]4 +cation,in which Cu(I)is coordinated with four S atoms from four imdt ligands to form a distorted tetrahedral geometryand imdt ligands exhibit three coordination modes of terminal monodentate S-donating andμ2—S andμ4—S bridging coordina-tion.
Three thiostannates （H2en）2Sn2S6· en 1, （Hen）4Sn2S6 2 （en = ethylenediamine, a known compound）and [（H2hmda）3（Hhmda）2]（Sn2S6）2 3 （hmda = hexamethylenediamine） were prepared using SnCl4.5H2O and S8 as starting materials in alkylenediamine solutions under mild solvothermal conditions. Compound 1 crystallizes in the triclinic system, space group P1^- with a = 8.7491（17）, b = 10.704（2）, c = 12.2031（19） A, a = 74.888（13）, β= 72.998（12）, γ= 89.032（15）°, V = 1052.9（3） A^3, Mr = 614.08, Z= 2, De = 1.937 g/cm^3, p = 2.966 mm^-1, F（000） = 604, S = 1.211, R = 0.0579 and wR = 0.0770 for 3999 observed reβections with I 〉 2σ（I）; while 3 crystallizes in the triclinic system, space group P1^- with a = 9.8075（13）, b = 10.8266（16）, c = 14.303（2） A, a = 88.611 （10）, β = 81.030（9）, γ = 74.609（9）°, V = 1446.1 （4） A^3, Mr = 1448.78, Z = 1, Dc = 1.664 g/cm^3, μ = 2.173 mm^-1, F（000） = 730, S = 1.173, R = 0.0457 and wR = 0.0667 for 5738 observed reβections with I 〉 2σ（I）. The compounds are composed of dimeric [Sn2S6]^4- anions and protohated alkylenediamine cations.
