论文部分内容阅读
The reaction of 3,6-di-(3-methyl-pyridin-2-yl)-s-tetrazine (DMPTZ, II) with CeIII salt [Ce(NO3)3·6H2O] generates a new ligand, N-(3-methyl-pyridin-2-yl)-formimidoyl-(3-methyl- pyridin-2-yl) hydrazone (L), and forms a new complex: a mononuclear complex [Ce(L)(NO3)2 (H2O)3]·NO3 (III). Crystal data for III: space group P-1, with a = 0.7133(4) nm, b = 1.1139(2) nm, c = 1.4572(3) nm, a = 102.13(2)? b = 99.81(3)? g = 91.10(3)? Z = 2, V = 1113.6(7) nm3, m = 2.123 mm-1 and F(000) = 630. L acts as a tri-dentate chelating ligand in III. There are 10 coor-dination sites around Ce3+ of III, which are respectively occupied by seven oxygen atoms (four from two nitrate anions and three from three H2O molecules) and three nitrogen atoms (all from L). The cerium atom and three chelating nitrogen atoms are coplanar. The mechanism of the metal assisted decomposition is discussed briefly.
The reaction of 3,6-di- (3-methyl-pyridin-2-yl) -s-tetrazine (DMPTZ, II) with CeIII salt [Ce (NO3) (3-methyl-pyridin-2-yl) hydrazone (L), and forms a new complex: a mononuclear complex [Ce (L) (NO3) 2 ] · NO3 (III). Crystal data for III: space group P-1 with a = 0.7133 (4) nm and b = 1.1139 (2) nm, c = 1.4572 (3) nm, b = 99.81 (3)? g = 91.10 (3)? Z = 2, V = 1113.6 (7) nm3, m = 2.123 mm-1 and F (000) = 630. L acts as a tri-dentate chelating ligand in There are 10 coor-dination sites around Ce3 + of III, which are separately occupied by seven oxygen atoms (four from two nitrate anions and three from three H2O molecules) and three nitrogen atoms (all from L). The cerium atom and three chelating nitrogen atoms are coplanar. The mechanism of the metal assisted decomposition is discussed briefly.