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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
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Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 1 to 10 of 437 (0.024 seconds)Spelling suggestions: "subject:"15crown"" "subject:"bcrown""
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John Crownes komödien und burleske dichtung ...Grosse, Wilhelm, January 1903 (has links)
Inaug.-diss.--Leipzig. / Vita. "Literatur": p. [114]-116.
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| 2 |
The comedies of John CrowneHæberli, E. January 1905 (has links)
"Inaugural dissertation ... at the University of Berne."
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| 3 |
John Crownes komödien und burleske dichtung ...Grosse, Wilhelm, January 1903 (has links)
Inaug.-diss.--Leipzig. / Vita. "Literatur": p. [114]-116.
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| 4 |
Synthesis and Properties of Novel Cage-Annulated Crown EthersHuang, Zilin 05 1900 (has links)
Three cage-functionalized polyoxacrown ethers (9, 10 and 12) and four novel cage-functionalized polyoxamonoazacrown ethers (18, 20, 25 and 29) that contain 3,5-disubstituted-4-oxahexacyclo[5.4.0.02,6.03,10.05,9.08,11]dodecane ("oxahexacyclic") moiety have been synthesized and their respective alkali metal picrate extraction profiles along with that of three analogues 13, 14 and 21 have been obtained. The observed avidities and selectivities of the host molecules toward complexation and transport of alkali metal picrates can be related to the size and shape of their respective macrocyclic cavity and the number of donor atoms. The effect of N-alkyl substitution on the complexation properties of azacrown ethers has been studied. The avidity of N-Et azacrown ethers toward complexation with alkali metal cations is generally higher than that of the corresponding non-N-alkylated hosts. However, the presence of an N-Et group appears to have a negligible effect upon their relative selectivities in their regards. The effect of pH on extraction process was studied; it was thereby determined that the alkali metal picrate extraction experiments are best performed at high pH (ca. 11-12).
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| 5 |
An investigation of some oxygen heterocycles : their polymerisation and effect on polymer propertiesClarkson, Richard John January 1996 (has links)
No description available.
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| 6 |
Complexation of neutral and cationic scandium(III) species with macrocyclic ligandsMeehan, Paul R. January 1996 (has links)
No description available.
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| 7 |
Studies of potentially useful thiol-reactive fluorescent probes and novel ion-responsive fluorescent quinoxalinone derivativesGhorbanian, Shohreh January 1997 (has links)
No description available.
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| 8 |
The coordination chemistry of some multidentate thioether ligandsWhite, David James January 1994 (has links)
No description available.
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| 9 |
Synthesis of thiacrown and azacrown ethers based on the spiroacetal frameworkNikac, Marica, University of Western Sydney, College of Social and Health Sciences, School of Biomedical and Health Sciences January 2005 (has links)
This thesis describes the synthesis of novel thiacrown and azacrown ethers based on the 1.7-dioxaspiro[5.5] undecane ring system. Each chapter discusses the research in some detail. Chapter five describes the attempted kinetic resolution of the spiroacetal moiety, to provide enantiopure starting material for the synthesis of non-racemic spiroacetal crown ethers. Three different approaches were investigated. Chapter six summarises the results achieved and discusses possible strategies emanating from these results. / Doctor of Philosophy (PhD)
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| 10 |
Onderzoekingen over plantentumoren (Crown-Call) tumor inductie met verschillende stammen van Agrobacterium tumefaciens: een vergelijkend onderzoek.Goor, B. J. van. January 1900 (has links)
Proefschrift--Leiden. / Vita. Summary in Dutch and English. Includes bibliographical references.
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