Coordination networks self-assembled by transition metal salts with 4,4′-oxydianiline (4,4′-oda).: Syntheses and structures of ∞1[Ni(NCS)2(4,4′-oda)2], ∞2[Co(NCS)2(4,4′-oda)2] and ∞2[M(N3)4,4′-oda)2]NO3 (M=CdII or CoII)

Four infinite complexes (1)(infinity)[Ni(NCS)(2)(4,4'-oda)(2)], (2)(infinity)[Co(NCS)(2)(4,4'-oda)(2)] and (2)(infinity)[M(N-3)(4,4'-oda)(2)]NO3 [M = Cd-II (3) or Co-II (4)] were obtained by reactions 4,4'-oxydianiline (4,4'-oda) with Ni(SCN)(2), Co(SCN)(2), Cd(N-3)(2) and Co(N-3)(2), respectively which have been structurally established by single-crystal X-ray diffraction. Complex 1 contains one-dimensional double-stranded chains comprising 24-membered Ni-2(4,4'-oda)(2) macrocycles, each formed by two 4,4'-oda ligands and two octahedral Ni-II centers. Complex 2 exhibits two-dimensional non-interpenetrating networks consisting of large 48-membered macrocycles each formed by four 4,4'-oda ligands and four octahedral Co-II centers. The crystal structures of 3 and 4 are isomorphous and both contain one-dimensional double-stranded chains comprising 24-membered M-2(4,4'-oda)(2) macrocycles, which are interlinked by mu-1,3-azide groups to generate cationic two-dimensional sheets. These sheets are further connected by hydrogen bonds between the amine groups and nitrate ions to furnish three-dimensional networks. Crystal data: complex 1 crystallizes in the monoclinic space group P2(1)/c with a = 11.990(4) Angstrom, b = 9.413(4) Angstrom, c = 12.827(4) Angstrom, beta = 116.32(2)degrees, V = 1297.6(8) Angstrom(3) and Z = 2; complex 2 crystallizes in the orthorhombic space group Pbca. with a = 9.583(2) Angstrom, b = 12.738(3) Angstrom, c = 21.039(4) Angstrom, V = 2568.2(9) Angstrom(3) and Z = 4; complex 3 crystallizes in. the monoclinic space group C2/c with a = 23.036(5) Angstrom, b = 5.920(1) Angstrom, c = 17.800(4) Angstrom, beta = 92.67(3)degrees, V = 2424.8(9) Angstrom(3) and Z = 4; complex 4 crystallizes in the monoclinic space group C2/c with a = 22.861(5) Angstrom, b = 5.812(1) Angstrom, c = 17.720(4) Angstrom, beta = 93.00(3)degrees, V = 2351.2(8) Angstrom(3) and Z = 4.