| In this dissertation, nine new coordination complexes of three types of disphosphonic acid have been synthesized by the liquid method or hydrothermal method. They were studied by IR and single crystal X-ray diffraction methods. The thermogravimetric analyses of complexes (1), and (5) were studied, and the magnetic analyses of complex (2), (3) and (5) was also studied.There are three chapters in this dissertation:Chart one: The complexes of {La[H2N(CH2)3CO(PO3)2·(H2O)]}n (1), {Pr[H3N(CH2)3- C(OH)(PO3)2]}n (2), {Sm[H3N(CH2)3C(OH)(PO3)2]}n (3), {Gd[H3N(CH2)3C(OH)(PO3)2]}n (4), {Mn[H3N(CH2)3CO(PO3)2]·H2O}n (5). were obtained by the reaction of 4-Amino-1- hydroxybutylidene-1, 1-bisphosphonic acid and corresponding metallic salts. The crystals of (1)～(4) belong to orthorhombic system and (5) belongs to monclinic system, space groups are P2(1)2(1)2(1),Pnma,Pnma,Pnma,P2(1)/n. Cell parameters of (1): a = 10.8617(8) nm, b = 10.862 nm, c = 8.5392(6) nm, V = 1007(10) nm3, Z = 4, Dc = 2.644 g.cm-3. The centeral metal ion La(III) is eight-coordinated by four ligend anions and one water, formed a distorted square antiprismatic coordination polyhederon. Cell parameters of (2): a = 10.6763(11) nm, b = 8.4245(8) nm, c = 10.2980(10) nm, V = 926.23(16) nm3, Z = 4, Dc = 2.775 g.cm-3; Cell parameters of (3): a = 10.6160(10) nm, b = 8.3900(9) nm, c = 10.1530(11) nm, V = 904.31(16) nm3, Z = 4, Dc = 2.912 g.cm-3; Cell parameters of (4): a = 10.6160(10) nm, b = 8.3900(9) nm, c = 10.1530(11) nm, V = 904.31(16) nm3, Z = 4, Dc = 2.912 g.cm-3. The centeral metal ion Ln(III) is seven-coordinated by four ligend anions, formed a distorted single-capped trigonal-antiprismatic geometry. Cell parameters of (5): a = 5.6148(3) nm, b = 14.6644(8) nm, c = 12.3835(7) nm,β= 98.252(3)°, V = 1009.07(10) nm3, Z = 4, Dc = 2.093 g.cm-3. The centeral metal ion Mn(II) is six coordinated by three ligand anions, formed a distorted octahedron geometry. The complex forms three-dimensional network structure by intermolecule hydrogen bonding.Chart two: The complexes of {Mn[H3N(CH2)2C(OH)(PO3H)2]2·2H2O}n (6), {Ca[H3N- (CH2)2C(OH)(PO3)(PO3-H)·(H2O)]·H2O}n (7), {Pb[H3N(CH2)2C(OH)(PO3H)(PO3)]}n (8) were obtained by the reaction of 3-Amino-1-hydroxypropylidene-1,1-bisphosphonic acid and MnCl2·4H2O, CaO, PbO. The complex (6) belongs to monclinic system, space group C2/c, with cell parameters: a = 14.4318(19) nm, b = 14.2465(18) nm, c = 11.1184(10) nm,β= 119.121(2)°, V = 1997.0(4) nm3, Z = 4, Dc = 1.860 g.cm-3. The centeral metal ion Mn(II) is six coordinated by four ligand anions, formed a distorted octahedron geometry. The 3D network was formed through the intermolecule hydrogen bonding. The complex (7) belongs to orthorhombic system, space group Pna2(1), with cell parameters: a = 13.9197(13) nm, b = 10.6984(10) nm, c = 6.9803(6) nm, V = 1039.50(16) nm3, Z = 4, Dc = 1.975 g.cm-3. The centeral metal ion Ca(II) is seven-coordinated by three ligand anions and one water, formed a distorted pentagonal-bipyramidal geometry, The three-dimensional was formed through the intermolecule hydrogen bonds; The complex of (8) belongs to orthorhombic system, space group P2(1)2(1)2(1), with cell parameters: a = 7.2264(14) nm, b = 10.093(2) nm, c = 12.154(2) nm, V = 886.5(3) nm3, Z = 4, Dc = 3.299 g.cm-3. The centeral metal ion Pb(II) is five coordinated by three ligand anions, formed a distorted quartpyramid geometry; The three-dimensional was formed through the intermolecule hydrogen bonding.Chart three: The complex of {Cu[H3NCH3C(OH)(PO3H)2]2·2H2O}n (9) is obtained by the reaction of 2-Amino -1-hydroxyethylicidene-1,1-bisphosphonic acid and CuCl2, the complex (9) belongs to monclinic system, space group P2(1)/c, with cell parameters: a = 5.251(4) nm, b = 8.164(6) nm, c = 19.693(13) nm,β= 95.616(8)°, V = 840.1(10) nm3, Z = 2, Dc = 2.133 g.cm-3. The centeral metal ion Cu(II) is six coordinated by four ligand anions, formed a distorted octahedron geometry. The complex forms three-dimensional network structure by intermolecule hydrogen bonding.
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