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.
A 2D coordination polymer of [Cd(mbix)(BIPA)] (1) (H2BIPA=5-bromoisophthalic acid and mbix=1,3-bis(imidazol-1-ylmethyl) benzene) has been hydrothermal prepared and characterized by elemental analysis,IR spectroscopy and single-crystal X-ray diffraction structure analysis. The crystal is of monoclinic,space group P21/n with a=1.002 0(4) nm,b=1.754 4(7) nm,c=1.208 8(5) nm,β=94.271(5),V=2.119 1(15) nm3,Dc=1.861 g.cm-3,Z= 4,F(000)=1 168,Goof=1.085,R1=0.045 0,wR2=0.093 1. The crystal structure shows that the Cd2 units are formed by the two caroboxylate group adopting tridentate-chelating-bridging coordination mode,which are linked to form a 2D layer structure by the ligands,and further extended into a 3D supramolecular structure through C-H …O hydrogen bonding interactions and π-π weak interactions. In addition,complex 1 exhibits strong photolumine-scent emission at room temperature. CCDC:710801.
The complex-(4’-fluorobenzyl)pyridiniu 2Ni (dto) 2(dto 2- means dithiooxalate dianion)has been pre-pared by reaction of Na 2Ni (S 2 C 2 O 2 ) 2and the 1-(4’-fluorobenzyl)pyridinium chloride salt.The crystallographic data for the title complex:triclini cP1,a=8.5698(8)?,b=9.3461(9)?,c=10.5361(10)?,α=67.177(2)°,β=67.398(2)°,γ=79.611(2)°,V=717.59(12)? 3 ,Z =1.TheNi (dto) 2 2- anion with the Ni atom lying on an inversion center and exhi bits a quasi-planar structure.An extensive hydrogen bond network of C -H...O is clearly observed.The nature and size of cation seems to play an important factor in the type of intermolecu lar interactions as well as the crystal packing in this kind of complexes.
