摘要
Two mixed metal complexes [Cr2Fe(μ3-O) (μ-O2CC2H5)6Py3]Cl (A)and [CrFe2 (μ3-O) (μ-O2CC2H5 )6Py3] Cl (B) have been prepared in non-aqueous sol-vents. Crystal (A) is monoclinic, space group C2/c, with a= 13. 782(3), b= 18. 381(4), c= 16. 643(2) A, β= 92. 84(5)°, V=4211. 1 (4) A3, Z=4, Mr= 887. 03, Dc= 1. 40 g/cm3, μ= 5. 0 cm-1, F(000) = 1836 and R(Rw) = 0. 057(0. 062) for 2134 unique reflections with I> 3δ(I). Crystal (B) is also monoclinic, space group C2/c ,with a= 13. 793(4), b= 18. 401 (6), c= 16. 657(5) A’, β= 93. 18(3)°, V=4221. 3(5) A3, Z= 4, Mr=890. 88, Dc= 1. 40 g/cm3, μ= 10. 5 cm-1, F(000) = 1844 and R(Rw) = 0. 067 (0. 069) for 2131 unique reflections with I>3δ(I). Both (A) and (B)have been characterized by IR spectra. Besides, the relations between the structuresand IR are discussed.
Two mixed metal complexes [Cr2Fe(μ3-O) (μ-O2CC2H5)6Py3]Cl (A)and [CrFe2 (μ3-O) (μ-O2CC2H5 )6Py3] Cl (B) have been prepared in non-aqueous sol-vents. Crystal (A) is monoclinic, space group C2/c, with a= 13. 782(3), b= 18. 381(4), c= 16. 643(2) A, β= 92. 84(5)°, V=4211. 1 (4) A3, Z=4, Mr= 887. 03, Dc= 1. 40 g/cm3, μ= 5. 0 cm-1, F(000) = 1836 and R(Rw) = 0. 057(0. 062) for 2134 unique reflections with I> 3δ(I). Crystal (B) is also monoclinic, space group C2/c ,with a= 13. 793(4), b= 18. 401 (6), c= 16. 657(5) A', β= 93. 18(3)°, V=4221. 3(5) A3, Z= 4, Mr=890. 88, Dc= 1. 40 g/cm3, μ= 10. 5 cm-1, F(000) = 1844 and R(Rw) = 0. 067 (0. 069) for 2131 unique reflections with I>3δ(I). Both (A) and (B)have been characterized by IR spectra. Besides, the relations between the structuresand IR are discussed.
