Hydrothermal syntheses and X-ray crystal structures of three inorganic-organic hybrid materials in a copper vanadium phosphate family: CuL(VO2)(PO4) (L=4,4 '-bipy, 1,10-phen, 2,2 '-bipy)
Z. Shi et al., Hydrothermal syntheses and X-ray crystal structures of three inorganic-organic hybrid materials in a copper vanadium phosphate family: CuL(VO2)(PO4) (L=4,4 '-bipy, 1,10-phen, 2,2 '-bipy), CHEM MATER, 12(10), 2000, pp. 2930-2935
Three inorganic-organic hybrid compounds with the formula CuL(VO2)(PO4), L
= 4,4' bipy, 1,10-phen, and 2,2'-bipy, were hydrothermally synthesized at 1
60 degreesC for 120 h and characterized by single-crystal X-ray diffraction
. The use of different bidentate organodiamine ligands in initial reaction
systems gave rise to the variety in the structures of the products: Cu(4,4'
-bipy)(VO2)(PO4) (1) and Cu(1,10-phen)(VO2)(PO4) (2) crystallize in a monoc
linic system with space group C2/c, a = 21.952(4) Angstrom, b = 8.0805(13)
Angstrom, c 15.918(2) Angstrom, beta 110.689(4)degrees, and V = 2641.5(7) A
ngstrom (3), and a = 20.4557(12) Angstrom, b = 11.6231(1) Angstrom, c 14.64
22(8) Angstrom, beta = 12?.5520(10)degrees, and V = 2760.0(3) Angstrom (3),
respectively. Cu(2,2'- bipy)(VO2)/PO4) (3) crystallizes in a triclinic sys
tem with space group P1, a = 5.561(5) Angstrom, b = 10.271(9) Angstrom, c 1
1.780(9) Angstrom, alpha = 74.31(3)degrees, beta = 79.98(3)degrees, gamma =
85.74(3)degrees, and V = 657.6(9) Angstrom (3). The structures of 1 and 2
possess the same {(VO2O2)(PO4)}(2) four-membered rings, whereas the structu
re of 3 contains {(VO2)(PO4)}(infinity) infinite chains. In terms of the or
ganic parts, the {Cu(4,4'-bipy)}(infinity) linear chains connect the {(VO2)
(PO4)}(2) four-membered rings to build up a 3D framework in 1, whereas the
Cu(1,10-phen)(2+) and Cu(2,2'-bipy)(2+) fragments link with the {(VO2)(PO4)
}(2) four-membered rings and {(VO2)(PO4)}(2) infinite chains to give two 1D
structures of 2 and 3, respectively. Their thermal stabilities were invest
igated.