Abstract
The Hofmann-danon-typeo-xylene clathrate Cd[NH2(CH2)9NH2]Ni(CN)4·0.5(CH3)2C6H4, crystallizes in the triclinic space groupPĪ witha = 15.118(3),b = 14.048(4),c = 7.325(1) Å, α = 91.50(2), β = 131.66(3), and γ = 107.50(2)°,V = 1051(1) Å3 andZ = 2. The structure, refined toR = 0.047 using 2851 reflections, reveals a three-dimensional host framework built of the layers of a two-dimensionalcatena-[cadmium tetra-μ-cyanonickelate(Il)] network and of the ambidentate 1,9-diaminononane (danon) bridging the Cd atoms in adjacent networks. The guesto-xylene molecule is accommodated in the cavity formed in the interlayer space similar to that in the Hofmann-daotn-type. The skeleton of the danon in the Cd-NC9N-Cd linkage takes a (gauche)2(trans)8 conformation twisted at the (gauche)2 part in contrast with the all-trans conformation of 1,8-diaminononane in the Hofmann-daotn-type clathrate. The twisted (gauche)2 part of the danon skeleton occupies the interlayer space to such an extent that void space available for the guest o-xylene molecule decreases to half that in the Hofmann-daotn-type clathrate Cd[NH2(CH2)8NH2]Ni(CN)4·G.
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The Crystal structures of α,ω-Diaminoalkanecadmium(II)Tetracyanonickelate(II) - Aromatic Molecule Inclusion Compounds. VI.
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Hashimoto, M., Kitazawa, T., Hasegawa, T. et al. The twisted skeleton of 1,9-diaminononane incatena-[catena-,μ-(1,9-diaminononane)cadmium(II) tetra-μ -cyanonickelate(II)]-o-xylene(2/1). J Incl Phenom Macrocycl Chem 11, 153–158 (1991). https://doi.org/10.1007/BF01153298
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DOI: https://doi.org/10.1007/BF01153298