SYNTHESIS AND STRUCTURE OF A NOVEL DIMERIC DYSPROSIUM COMPLEX OF 3-AMINO-4-METHYLBENZOIC ACID

摘要

A novel europium coordination complex [Eu(AMBA)_3(H_2O)_2 centre dot H_2O]_2 has been obtained from ethanol solution and characterized structurally by X-ray diffraction (AMBAH=3-amino-4-methylbenzoic acid). The results reveal that it forms a dimeric molecular structure through bridging oxygen atoms of carboxylate groups. The title complex crystallizes in the triclinic system, space group P1, with lattice parameters a = 9.084(2), b= 12.331(3), c= 12.357(3)A, a = 87.055(4), beta = 69.657(3), gamma = 81.866(3) deg, K= 1284.8 (6) A~3, D_c. = 1.697 Mgm~3, Z=l, ,F(000) = 660, GOF= 1.050, R_1 =0.0363.