Crystal structure of bis{μ-(E)-2-[(2-oxidophenylimino)methyl]quinolin-8-olato-κ4 O,N,N′,O′}bis[dibutyltin(IV)]
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چکیده
Condensation of 8-hy-droxy-quinoline-2-carbaldehyde with 2-amino-phenol gave the (E)-2-[(2-hy-droxy-phenyl-imino)-meth-yl]quinolin-8-ol derivative that reacted with di-n-butyl-tin oxide with release of H2O to yield the chelate title complex, [Sn2(C4H9)4(C16H10N2O2)2]. The compound crystallizes in the triclinic space group P-1, with two independent centrosymmetric dimers in the unit cell. Each features a typical pincer-type structure where the dianionic ligand is tetra-dentate, coordinating to the central tin atom through both phenolate oxygen atoms, as well as through the quinoline and imine N atoms. Each metal atom adopts a distorted penta-gonal-bipyramidal SnC2N2O3 coordination arising from the N,N',O,O'-tetra-dentate deprotonated Schiff base, one bridging phenolate O atom of the neighbouring ligand and two butyl groups in the axial sites.
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The Sn(IV) atom in the centrosymmetric dinculear title compound, [Sn(2)(CH(3))(2)(C(6)H(5))(2)(C(9)H(6)NO)(2)Cl(2)], shows a trans-C(2)SnNO(2)Cl distorted octa-hedral coordination [C-Sn-C = 157.83 (8)°]. The quinolin-8-olate anion chelates to the Sn atom; its O atom also binds to the inversion-related Sn atom, forming the dinuclear compound. In the crystal structure, weak inter-molecular C-H⋯Cl...
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