Crystal engineering has grown into a subject that attracts intense attention because controlling themolecular organization in the solid state can lead to materials with novel structures and promising proper-
A one-dimensional zigzag chain complex of Cd(FA)(pyim)(H2O) (1) (H2FA=4,4′-(hexafluoroisopropylidene)bis(benzoic acid) and pyim=2-(2-pyridyl)imidazole) was hydrothermal synthesized from Cd(NO3)2·4H2O, 4,4′- (he...A one-dimensional zigzag chain complex of Cd(FA)(pyim)(H2O) (1) (H2FA=4,4′-(hexafluoroisopropylidene)bis(benzoic acid) and pyim=2-(2-pyridyl)imidazole) was hydrothermal synthesized from Cd(NO3)2·4H2O, 4,4′- (hexafluoroisopropylidene)bis (benzoic acid) and 2-(2-pyridyl)imidazole. Single-crystal X-ray analysis revealed that the zigzag chains of 1 are linked into three-dimensional supramolecular networks by both O-H …O hydrogen- bonds and π…π stacking interactions. The crystal is of monoclinic, space group P21/n with a=0.856 34(10) nm, b=1.020 49(12) nm, c=2.809 0(3) nm, β=98.115(2)°, V=2.430 2(5) nm3, Dc=1.820 g·cm-3, Z=4, F(000)=1 320, Goof= 1.009, R1 =0.047 0, wR2 =0.115 5. In addition, complex 1 exhibits strong photoluminescent emission at room temperature. CCDC: 733837.展开更多
A two-dimensional hydrogen-bonded cadmium(II) compound [Cd(dapm)2- (CH3COO)2(H2O)2] (dapm = diaminodiphenylmethane) has been synthesized and characterized by single-crystal X-ray diffraction analysis. It crystallizes ...A two-dimensional hydrogen-bonded cadmium(II) compound [Cd(dapm)2- (CH3COO)2(H2O)2] (dapm = diaminodiphenylmethane) has been synthesized and characterized by single-crystal X-ray diffraction analysis. It crystallizes in monoclinic, space group C2/c with a = 27.572(3), b = 5.5064(5), c = 23.310(2) , = 124.785(1)o, C15H19Cdo.5ON2O3, Mr =331.52, V = 2906.6(5) ?, Z = 4, Dc = 1.515 g/cm3, F(000) = 1368 and = 0.801 mm-1. The final R = 0.0403 and wR = 0.1014 for 1795 observed reflections with I≥4(I). The centrosymmetric Cd(II) is six- coordinated in a distorted octahedral geometry, and the dapm in a trans mode acts as a monoden- tate ligand. The intermolecular hydrogen bonds among coordinated aqua molecules with coordi- nated acetate oxygen atoms and uncoordinated dapm nitrogen atoms form a two-dimensional supramolecular framework.展开更多
The title complex Cd(dppf)Br2 (dppf=1,1′-bis(diphenylphosphino)ferrocene) (C34H28Br2 P2CdFe, Mr=826.57) has been synthesized and characterized by X-ray diffraction. The crystal is in monoclinic, space group C2/c with...The title complex Cd(dppf)Br2 (dppf=1,1′-bis(diphenylphosphino)ferrocene) (C34H28Br2 P2CdFe, Mr=826.57) has been synthesized and characterized by X-ray diffraction. The crystal is in monoclinic, space group C2/c with cell parameters: a = 34.285(4), b = 10.050(1), c = 18.697(2) ? β= 98.843(3)? V = 6366(1)3, Z = 8, Dc = 1.725g/cm3, (MoKa) = 0.71073 ? =3.757mm-1, F(000)=3248. The final refinement with 4469 observed reflections and 361 parameters gave R=0.0584 and wR=0.1522. The 1,1′-bis(diphenylphosphino)ferrocene group is connected to the Cd atom as a bidentate ligand. The Cd atom has a distorted tetrahedral coordination.展开更多
文摘Crystal engineering has grown into a subject that attracts intense attention because controlling themolecular organization in the solid state can lead to materials with novel structures and promising proper-
文摘A one-dimensional zigzag chain complex of Cd(FA)(pyim)(H2O) (1) (H2FA=4,4′-(hexafluoroisopropylidene)bis(benzoic acid) and pyim=2-(2-pyridyl)imidazole) was hydrothermal synthesized from Cd(NO3)2·4H2O, 4,4′- (hexafluoroisopropylidene)bis (benzoic acid) and 2-(2-pyridyl)imidazole. Single-crystal X-ray analysis revealed that the zigzag chains of 1 are linked into three-dimensional supramolecular networks by both O-H …O hydrogen- bonds and π…π stacking interactions. The crystal is of monoclinic, space group P21/n with a=0.856 34(10) nm, b=1.020 49(12) nm, c=2.809 0(3) nm, β=98.115(2)°, V=2.430 2(5) nm3, Dc=1.820 g·cm-3, Z=4, F(000)=1 320, Goof= 1.009, R1 =0.047 0, wR2 =0.115 5. In addition, complex 1 exhibits strong photoluminescent emission at room temperature. CCDC: 733837.
文摘A two-dimensional hydrogen-bonded cadmium(II) compound [Cd(dapm)2- (CH3COO)2(H2O)2] (dapm = diaminodiphenylmethane) has been synthesized and characterized by single-crystal X-ray diffraction analysis. It crystallizes in monoclinic, space group C2/c with a = 27.572(3), b = 5.5064(5), c = 23.310(2) , = 124.785(1)o, C15H19Cdo.5ON2O3, Mr =331.52, V = 2906.6(5) ?, Z = 4, Dc = 1.515 g/cm3, F(000) = 1368 and = 0.801 mm-1. The final R = 0.0403 and wR = 0.1014 for 1795 observed reflections with I≥4(I). The centrosymmetric Cd(II) is six- coordinated in a distorted octahedral geometry, and the dapm in a trans mode acts as a monoden- tate ligand. The intermolecular hydrogen bonds among coordinated aqua molecules with coordi- nated acetate oxygen atoms and uncoordinated dapm nitrogen atoms form a two-dimensional supramolecular framework.
基金the provincial education foundation of Fujian (JA99135) the test foundation of Fuzhou University
文摘The title complex Cd(dppf)Br2 (dppf=1,1′-bis(diphenylphosphino)ferrocene) (C34H28Br2 P2CdFe, Mr=826.57) has been synthesized and characterized by X-ray diffraction. The crystal is in monoclinic, space group C2/c with cell parameters: a = 34.285(4), b = 10.050(1), c = 18.697(2) ? β= 98.843(3)? V = 6366(1)3, Z = 8, Dc = 1.725g/cm3, (MoKa) = 0.71073 ? =3.757mm-1, F(000)=3248. The final refinement with 4469 observed reflections and 361 parameters gave R=0.0584 and wR=0.1522. The 1,1′-bis(diphenylphosphino)ferrocene group is connected to the Cd atom as a bidentate ligand. The Cd atom has a distorted tetrahedral coordination.
