The reaction of LnCl 3 with two equivalents of 2,4-dimethyl-pentadienyl potassium affords (2,4-C 7H 11 ) 3Ln(Ln=Dy,Er). The compound (2,4-C 7H 11 ) 3Dy(1), crystallized from a mixed solvent of hexane and THF has a tri...The reaction of LnCl 3 with two equivalents of 2,4-dimethyl-pentadienyl potassium affords (2,4-C 7H 11 ) 3Ln(Ln=Dy,Er). The compound (2,4-C 7H 11 ) 3Dy(1), crystallized from a mixed solvent of hexane and THF has a triclinic space group Pl with a =1 270 2(2) nm, b = 1 290 8(2) nm, c =0 847 9(2) nm, α =91 48(2)°, β =108 41(2)°, γ =118 41(2)°, Z =2. The compound (2,4-C 7H 11 ) 3Er(2) was crystallized from toluene in triclinic P l- with a =0 909 5(3) nm, b =1 407 2(3) nm, c =1.657 7(6) nm, α =106 66(2)°, β =93 77(3)°, γ =89 76(2)°, Z =4. Both structures were solved by using direct methods and refined by block-matrix least-squares to final values of R =0 039 for 1 and R =0 067 for 2. A comparison of some significant structural parameters in (2,4-C 7H 11 ) 3Ln(Ln=Dy,Er) with those from other analogues (2,4-C 7H 11 ) 3Ln(Ln=Nd,Gd) was made.展开更多
A novel one-dimensional chain coordination polymer of terbium(Ⅲ)with p-methylbenzoic acid,2,2’-bi-pyridine and 4,4’-bipyridine has been synthesized and characterized.The crystal data of this complex C39H37N3O8Tb ar...A novel one-dimensional chain coordination polymer of terbium(Ⅲ)with p-methylbenzoic acid,2,2’-bi-pyridine and 4,4’-bipyridine has been synthesized and characterized.The crystal data of this complex C39H37N3O8Tb are as follows:monoclinic system,space group P21 /n,a=0.974 01(10)nm,b=2.605 8(3)nm,c=1.457 77(14)nm,β=96.108(2)°,V=3.678 9(6)nm3,Dc=1.507 g·cm-3,Mr=834.64,Z=4,μ(Mo Kα)=1.978 mm-1,F(000)=1 684,R1=0.032 4,wR2=0.063 4.The crystal structure of the complex shows that the terbium(Ⅲ)ion is coordinated with eight oxygen atoms,six from five p-methylbenzoic acid molecules and two from two water molecules,respectively,forming the distorted tetraprism geometry.The luminescent property of the complex is also studied.CCDC:619216.展开更多
The crystal structure of Eu(TFPB)3bpy [TFPB: 4,4,4-trifluoro-1-phenyl-1,3- butanedione, bpy: 2,2′-bipyridyl] has been determined by single crystal X-ray diffraction and the coordination geometry of Eu atom is a squar...The crystal structure of Eu(TFPB)3bpy [TFPB: 4,4,4-trifluoro-1-phenyl-1,3- butanedione, bpy: 2,2′-bipyridyl] has been determined by single crystal X-ray diffraction and the coordination geometry of Eu atom is a square antiprism. The complex can give the characteristic luminescence of Eu3+ upon UV excitation. CCDC: 224879.展开更多
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文摘The reaction of LnCl 3 with two equivalents of 2,4-dimethyl-pentadienyl potassium affords (2,4-C 7H 11 ) 3Ln(Ln=Dy,Er). The compound (2,4-C 7H 11 ) 3Dy(1), crystallized from a mixed solvent of hexane and THF has a triclinic space group Pl with a =1 270 2(2) nm, b = 1 290 8(2) nm, c =0 847 9(2) nm, α =91 48(2)°, β =108 41(2)°, γ =118 41(2)°, Z =2. The compound (2,4-C 7H 11 ) 3Er(2) was crystallized from toluene in triclinic P l- with a =0 909 5(3) nm, b =1 407 2(3) nm, c =1.657 7(6) nm, α =106 66(2)°, β =93 77(3)°, γ =89 76(2)°, Z =4. Both structures were solved by using direct methods and refined by block-matrix least-squares to final values of R =0 039 for 1 and R =0 067 for 2. A comparison of some significant structural parameters in (2,4-C 7H 11 ) 3Ln(Ln=Dy,Er) with those from other analogues (2,4-C 7H 11 ) 3Ln(Ln=Nd,Gd) was made.
文摘A novel one-dimensional chain coordination polymer of terbium(Ⅲ)with p-methylbenzoic acid,2,2’-bi-pyridine and 4,4’-bipyridine has been synthesized and characterized.The crystal data of this complex C39H37N3O8Tb are as follows:monoclinic system,space group P21 /n,a=0.974 01(10)nm,b=2.605 8(3)nm,c=1.457 77(14)nm,β=96.108(2)°,V=3.678 9(6)nm3,Dc=1.507 g·cm-3,Mr=834.64,Z=4,μ(Mo Kα)=1.978 mm-1,F(000)=1 684,R1=0.032 4,wR2=0.063 4.The crystal structure of the complex shows that the terbium(Ⅲ)ion is coordinated with eight oxygen atoms,six from five p-methylbenzoic acid molecules and two from two water molecules,respectively,forming the distorted tetraprism geometry.The luminescent property of the complex is also studied.CCDC:619216.
文摘The crystal structure of Eu(TFPB)3bpy [TFPB: 4,4,4-trifluoro-1-phenyl-1,3- butanedione, bpy: 2,2′-bipyridyl] has been determined by single crystal X-ray diffraction and the coordination geometry of Eu atom is a square antiprism. The complex can give the characteristic luminescence of Eu3+ upon UV excitation. CCDC: 224879.
