Papers by vincent sithole
The objectives of the network are to conduct research that informs policymakers about food securi... more The objectives of the network are to conduct research that informs policymakers about food security issues and to help strengthen the regional capacity for food policy analyis. The underlying premise of the network is that building excellence in research capacity for national policy analysis comes through experience. In practice, this requires a long-term commitment to analytical capacity building, consistency in funding, and constant interaction between researchers and policymakers. The network has sponsored four annual conferences for network researchers, policymakers, SADCC officials, and representative of international and donor agencies. The aim of the conference is to share research fmdings, identify new research themes, and provide an opportunity for policy dialogue between regional researchers, policymakers, and government officials. The 1988 conference brought together 110 participants who deliberated on 28 papers. In the Official Opening, Vice-Chancellor W J. Kamba of the Univesity of Zimbbawe highlighted the importance of including health related-issues as a component of food security, and Zimbabwe's Senior Minister of Finance, Economic Planning, and Development B.T.
Eastern Africa Economic Review, 1989
European Journal of Inorganic Chemistry, 2009
Gold(I) complexes of dibenzotropylidene-functionalized N-heterocyclic carbene ligands (Trop-NHCs)... more Gold(I) complexes of dibenzotropylidene-functionalized N-heterocyclic carbene ligands (Trop-NHCs) have been prepared in order to investigate their structural features and to reveal possible interactions of the olefin unit with the metal center. The precursor imidazolium chloride salts (R-1) were generated in a single step using N-substituted imidazoles (R = H, Me, DiPP, Ad) and 1 or 2 equiv of Trop-Cl, generating unsymmetrical and symmetrical NHC-olefin hybrids. The structural parameters of the ligands were determined by synthesis and X-ray diffraction analysis of their corresponding gold(I) chloride complexes, revealing highly flexible steric demands of the Trop unit. Conversion of these complexes with halide-abstracting reagents such as AgNTf 2 and NaBArF 24 cleanly gave neutral, NTf 2-coordinated complexes of the type [(NHC)Au(NTf 2)] (R-3) and the cationic bis-NHC-coordinated complexes [(NHC) 2 Au]BArF 24 (R-4), respectively. The Gagosz-type complexes R-3 were further tested in the hydration of diphenylacetylene, showing a clear trend in activity depending on the ligand's sensitivity to hydrolysis.
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Papers by vincent sithole