Vapor-phase osmometry, degree

Ru(II) based terpyridine polymers were prepared by Houston et al. in 2003.21 The polymers were prepared by reacting /h.v-terpyridine monomers with Ru(DMSO)4Cl2 in hot ethanol (Fig. 3). To improve the solubility of the coordination polymers, pinene moieties are attached to the monomers. The degree of polymerization of the polymers was studied by elemental analyses, gel permeation chromatography, vapor phase osmometry, STM and electrospray ionization mass spectrometry. However, no precise result was obtained, and the size of the polymers was estimated to be between 40 and 60 repeating units. 

In the following example, we describe the extension of the ah initio DFT based methodology to the field of supramolecular chemistry [71]. X-ray analysis [139] has shown that crystals of (f )-2,2 -dimethyl-biphenyl-6,6 -dicarboxylic acid contain intermolecular H-bonded supramolecular cyclotetramers and vapor phase osmometry [139] has indicated the degree of association 4 in CHCI3 solution. The methodology consisting in the combination of experimental and ah initio calculated VCD spectra was employed to confirm the tetrameric structure in the solution and elucidate it in more details. 

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