1Pettinari C，Santini C,Leonesi D.Synthesis and cha racterizationof some zinc,cadmium and mercury(Ⅱ)derivatives of bis (4-methylpyrazol-1-yl) alkanes[J].Polyhedron, 1994， 13 (10)： 1553～1562.
2Pettinari C,Lorenzotti A,Sclavi GJ.Synthesis and spectroscopicinvestigations(IR,NMR and Mssbauer)of tin(Ⅳ) and organotin(Ⅳ) and derivativ es ofbis (pyrazol-1-yl) alkanes:X-ray crystal structures of bis (4-methylpyrazol-1- yl) methaneand its dimethyltin(Ⅳ) dichloride adduct[J]. Journal of Orga no metallic Chemistry,Organometallic Chemistry, 1995， 496: 69～85.
