A metal-organic coordination polymer [Zn(Pht)(Medpq)]n(Pht=phthalic acid,Medpq=2-methyldipyrido [3,2-f:2',3'-h]quinoxaline)(1) has been hydrothermally synthesized and structurally characterized by elemental analysis,IR spectrum,TG and X-ray single-crystal structure analysis.Title complex crystallizes in the monoclinic system,space group Cc,with a=1.027 4(4) nm,b=2.955 7(11) nm,c=0.685 2(3) nm,β=112.941°,V=1.916 3(13) nm3,C23H14N4O4Zn,Mr=475.75,Dc=1.649 g.cm-3,μ(Mo Kα)=1.324 mm-1,F(000)=968,Z=4,the final R=0.038 8 and wR=0.071 7 for 2 697 observed reflections(I>2σ(I)).In the crystal structure,the Zinc atom is six-coordinated with four carboxylate oxygen atoms from two different carboxylate groups and two nitrogen atoms from Medpq ligand,showing a slightly distorted octahedral geometry.Furthermore,it exhibits a one-dimensional structure with Pht-Zn-Medpq as building units.CCDC:716600.
A metal-organic Complex [Cu2(ipt)(Medpq)2]n(ipt=isophthalic acid,Medpq=2-methyldipyrido[3,2-f:2′,3′-h]quinoxaline) 1 has been hydrothermally synthesized and structurally characterized by elemental analysis,IR spectrum,TG and single-crystal X-ray diffraction.Title compound crystallizes in the monoclinic system,space group C2/c,with a=2.389 2(6) nm,b=0.709 60(18) nm,c=1.922 2(5) nm,β=108.655(3),V=3.087 8(14) nm3,C38H24Cu2 N8O4,Mr=783.73,Dc=1.686 g.cm-3,Z=4,the final R=0.055 4 and wR=0.128 5.In the crystal structure,the copper atom is three-coordinated with one carboxylate oxygen atom from carboxylate groups and two nitrogen atoms from Medpq ligand,showing a slightly distorted triangle geometry.Furthermore,it exhibits a zero-dimensional structure with ipt-Cu-medpq as building units.CCDC: 747544.
