Abstract
Micro and nano-structures of a new thallium(I) supramolecular polymer, [Tl2(μ3-TPOAc)(μ4-TPOAc)]n (1) [HTPOAc = triphenylacetic acid], were synthesized by sonochemical methods. These new micro and nano-structures were characterized by scanning electron microscopy, X-ray powder diffraction, IR spectroscopy and elemental analyses. Compound 1 was structurally characterized by single-crystal X-ray diffraction and consists of primary dimmeric unit of. Self assembly between the dimmeric units of [Tl2(μ3-TPOAc)(μ4-TPOAc)] from Tl⋯C short contacts result in formation of a new two-dimensional thallium(I) supramolecular polymer. Two TlI-ions in compound 1 have O5Tl(1)⋯C3 and O2Tl(1A)⋯C2 coordination spheres with a stereo-chemically ‘active’ electron lone pair on the metals. Thermal stability of compound 1 was studied by thermo gravimetric and differential thermal analyses. In addition thallium(III) oxide with nano-structural surface was prepared from calcination process of compound 1 at 873 K.
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