| Abstract: Two Schiff-bases were prepared by the condensation of 2-pyridinecarboxaldehyde with 4-fluoroaniline and 4-chloroaniline respectively. The two Schiff-bases as ligands coordinated with methyltrioxorhenium(Ⅶ) to afford the corresponding complexes (1, 2) smoothly. The complexes were characterized by NMR, IR, MS, elemental analysis and X-ray diffraction single crystal structure analysis. Crystal structure analysis showed that complex 1 belongs to triclinic, space group P1, a=0.783 65(16) nm, b=0.844 97(17) nm, c=1.004 2(2) nm, β=76.62(3)°, V=0.635 0(2) nm3, Mr=449.45, Z=2, Dc=2.351 g·cm-3, F(000)=424 and final R1=0.022 8，wR2=0.058 6, and complex 2 belongs to monoclinic, space group P21/n, a=0.953 60(8) nm, b=1.410 70(17) nm, c=1.070 90(10) nm, β=108.188(6)°, V=1.368 6(2) nm3, Mr=465.90, Z=4, Dc=2.261 g·cm-3, F(000)=880, and final R1=0.031 5, wR2=0.061 5. It was also showed that both complex 1 and 2 had distorted octahedral geometry. CCDC: 797928, 1; 797929, 2. |
