The nickel complex{Ni(2,2-bipy)(H_2O)_3[C_8H_(11)O_2(COO)]}(H_2O)3 with bicycle[2.2.1]-2-hepten-5,6-dicarboxylic acid[C7H8(COOH)2]and 2,2'-bipyridine(bipy)as ligands has been synthesized and characterized.It crystallizes in monoclinic,space group P1,with a= 0.74975(3),b=1.20309(4),c=1.30593(4)nm,α=109.861(2),β=98.519(2),γ=90.575(2)o,V= 1.09337(7)nm~3,Dc=1.552 g/cm~3,Z=2,F(000)=524,the final GOOF=1.064,R=0.0397 and wR=0.1171.The crystal structure shows that the nickel ion is coordinated with four oxygen atoms from one bicycle[2.2.1]-2-hepten-...