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)

Author： Chen X-M.

Publisher： Taylor & Francis Ltd

ISSN： 1061-0278

Source： Supramolecular Chemistry, Vol.14, Iss.1, 2002-01, pp. : 21-26

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Abstract

Four infinite complexes ¹[Ni(NCS)₂(4,4 prime -oda)₂], ²[Co(NCS)₂(4,4 prime -oda)₂] and ²[M(N₃)(4,4 prime -oda)₂]NO₃ [M=Cd^II (3) or Co^II (4)] were obtained by reactions 4,4 prime -oxydianiline (4,4 prime -oda) with Ni(SCN)₂, Co(SCN)₂, Cd(N₃)₂ and Co(N₃)₂, respectively which have been structurally established by single-crystal X-ray diffraction. Complex 1 contains one-dimensional double-stranded chains comprising 24-membered Ni₂(4,4 prime -oda)₂ macrocycles, each formed by two 4,4 prime -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 prime -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 M₂(4,4 prime -oda)₂ macrocycles, which are interlinked by -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 P2₁/c with a=11.990(4) å, b=9.413(4) å, c=12.827(4) å, beta =116.32(2)°, V=1297.6(8) å³ and Z=2; complex 2 crystallizes in the orthorhombic space group Pbca with a=9.583(2) å, b=12.738(3) å, c=21.039(4) å, V=2568.2(9) å³ and Z=4; complex 3 crystallizes in the monoclinic space group C2/c with a=23.036(5) å, b=5.920(1) å, c=17.800(4) å, beta = 92.67(3)°, V=2424.8(9) å³ and Z=4; complex 4 crystallizes in the monoclinic space group C2/c with a= 22.861(5) å, b=5.812(1) å, c=17.720(4) å, beta =93.00(3)°, V=2351.2(8) å³ and Z=4.