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    ABSTRACT: Sandwich complexes feature unique properties as the physical and electronic properties of a hydrocarbon ligand or its derivative are integrated into the physical, electronic, magnetic, and optical properties of a metal. Incorporation of these complexes into macromolecules results in intriguing physical, electrical, and optical properties that were hitherto unknown in organic-based macromolecules. These properties are tunable through well-designed synthetic strategies. This review surveys many of the synthetic approaches that have resulted in tuning the properties of sandwich complex-containing macromolecules. While the past two decades have seen an ever-growing number of research publications in this field, gaps remain to be filled. Thus, we expect this review to stimulate research interest towards bridging these gaps, which include the insolubility of some of these macromolecules as well as expanding the scope of the sandwich complexes.
    Macromolecular Rapid Communications 01/2014; · 4.93 Impact Factor
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    ABSTRACT: This textbook is intended to give an understanding of the basic principles that constitute the field of non-conventional polymers containing inorganic and organometalic units as the repeating units. Each chapter will be self-explanatory with a good background so that it can be easily understood at the senior undergraduate level. The principles involved in the preparation of these polymers, their characterisation and their applications will be discussed. Basic inorganic chemistry required for the understanding of each topic is presented so that the content of the chapter is readily understood.
    Macromolecular Chemistry and Physics 05/2006; 207(10). · 2.39 Impact Factor
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    ABSTRACT: The facile linking of ferrocene units into multinuclear frameworks via boronic ester condensation chemistry is demonstrated through the synthesis of (η5-C5H5)Fe(η5-C5H4)BO2C5H8O2B(η5-C5H4)Fe(η5-C5H5), which has been characterized by standard spectroscopic techniques and its structure (as the chloroform solvate) determined crystallographically. The crystal structure reveals the following properties: monoclinic, space group P21/n with a = 22.5093(3), b = 5.8951(3), c = 22.9770(5) Å, β = 119.110(1)°, Z = 4, R = 0.059 and wR2 = 0.123 for observed reflections I > 2σ(I). The molecular structure is characterized by two planar, three-coordinate boron centres (Σangles at boron = 360° within the standard 3σ limit) featuring B–O bond lengths of 1.358(6)–1.371(6) Å and B–C distances of 1.539(7) and 1.553(7) Å. The pentaerythritol linker ensures that the core of the molecule is non-linear, with the B(1)···C(1)···B(2) angle being 140.1°. Moreover, the corresponding angle measured for the macrocycle [(η5-C5H4)Fe(η5-C5H4)BO2C5H8O2B]2 is only slightly narrower (137.6°), implying that the formation of such a macrocyclic ring does not necessitate a large structural distortion, and hence that the degree of resulting ring strain is likely to be minor. Graphical Abstract The facile linking of ferrocene units into multinuclear frameworks via boronic ester condensation chemistry is demonstrated through the synthesis of (η5-C5H5)Fe(η5-C5H4)BO2C5H8O2B(η5-C5H4)Fe(η5-C5H5), which has been characterized by standard spectroscopic techniques and its structure (as the chloroform solvate) determined crystallographically.
    Journal of Chemical Crystallography 40(2). · 0.51 Impact Factor