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Showing 1 to 20 of 30 for “"Inclusion compounds"”.
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Inclusion compounds of multipedal hosts
The inclusion properties of three multipedal host compounds have been investigated. The host compounds : hexakis(3-hydroxy-3,3-diphenyl-2-propynyl)benzene (host 1), 1,2,3,5,6, 7-hexakis(3-hydroxy-3,3-diphenyl-2-propynyl)naphthalene (host 2), and tetra(3-hydroxy-3,3-diphenyl-2-propynyl)ethylene …
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Inclusion compounds : structure, reactivity and selectivity
… and kinetic aspects of a variety of inclusion compounds which contain small organic guests. The host compounds studied are alkaline-earth metal salts of O,O’-dibenzoyl-(2R, 3R)-tartraric acid (magnesium, calcium and strontium), 1,1’-bis-(4-hydroxyphenyl)cyclohexane (DHPC) and …
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Structure and thermodynamics of Diol inclusion compounds
… 9,10-dihydroanthracene (1) with compounds containing neutral nitrogen atoms (Lewis bases). The structures of inclusion compounds with two nitriles (acetonitrile and 3- hydroxypropionitrile), with pyridine and with three substituted pyridines (3- methylpyridine, …
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Structure and decomposition of diol inclusion compounds
The inclusion properties of the host, trans-9, 10-dihydroxy-9, 10-diphenyl-9,10- dihydroanthracene, with various guest molecules, namely cyclohexanone, 2- methylcyclohexanone, 3-methylcyclohexanone and 4-methylcyclohexanone, were investigated. The host to guest ratios were determined by programmed …
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Structure and reactivity of selected inclusion compounds
Selected inclusion compounds of hydroxy hosts from three different classes were investigated. The host compounds in class A are 2,7-substituted 2,2'-bis(9-hydroxy-9-fluorenyl)biphenyls, with the substituents being Cl, Br or tert-butyl. They readily form inclusion compounds with a wide variety of …
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The physio-chemical properties of organic inclusion compounds
In this thesis the inclusion properties of the host compounds trans-9,10-dihydroxy-9,10-bis(p-tert-butylphenyl)-9, 10-dihydroanthracene (TBDDDA), 9.9'-(Biphenyl-4,4'diyl) difluoren-9-ol (WEB24) and 1â ´ ,1â ¶,5â ´,5â ¶-tetrahydroxy-2,4,6,8-tetrapentyl-3â ´,3â ¶,7â ´,7â …
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Structure and reactivity of selected organic inclusion compounds
The inclusion behaviour of the two host compounds 1,1 ,6,6-tetraphenylhexa-2,4- diyne-l,6-diol and cyclotriveratrylene (2,3,7,8,12,13-hexamethoxy-5,lO-dihydro- 15H-tribenzo[ a,d,g]cyclononene) was studied. Small organic guests were complexed with these hosts and their crystal structures determined. …
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Structures and thermal stability of selected organic inclusion compounds
… ,6- diol host-guest inclusion componds. Host-guest hydrogen bonding in 5-(3,5- Dicarboxyphenylethynyl)-isophthalic acid salts occurs via the carboxylate group of the host anion. Hydrogen bond formation was the directing force determining the form of a host-guest array. …
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Crystal isostructurality and X-ray diffraction studies of cyclodextrin inclusion compounds
… part of this dissertation includes organic inclusion complexes of all three natural cyclodextrins (a-,
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The physicochemical characterisation of cyclodextrin inclusion compounds with non-steroidal anti-inflammatory drugs
… agents for a wide range of pharmaceutical compounds, through their ability to include small molecular weight molecules inside an annular cavity formed by linked glucose residues of varying number. The non-steroidal anti-inflammatory drugs (NSAIDs), a group of agents that share a similar …
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Formation of Cyclodextrin-Drug Inclusion Compounds and Polymeric Drug Delivery Systems using Supercritical Carbon Dioxide
… generated which incorporate cyclodextrin-drug inclusion complexes as the drug delivery component. Supercritical CO2 was explored as the main processing fluid in the complex formation and in the foaming of the polymer scaffold. The co-solvents, ethanol, ethyl acetate and acetone, were explored …
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Structures and thermal analyses of Werner clathrates and coordination polymers
… several organometallic host complexes and their inclusion compounds with small, polar, organic guests have been elucidated. These compounds form a diverse range of structure types, from hydrogen bonded networks of Werner-type inclusion compounds to one- and two- dimensional coordination polymers. …
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Inclusion properties of hydroxy host compounds
Inclusion compounds can be defined as those in which one type of molecule is able to enclose another molecule (usually smaller) within its structure, leaving the bonding systems of both components unchanged. The molecular network and the enclosed species are usually referred to as the "host" and …
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Clathration by diol hosts : thermodynamics and structure
Inclusion properties of the following seven diol host compounds were investigated: Host 1 9,9'-bis(9,91-dihydroxy-fluorene) Host 2 1, 1'-binaphthyl-2,2'-bis( diphenylhydroxymethyl) Host 3 2,2'-bis(9-hydroxy-9-fluorenyl)biphenyl Host 4 trans-9, 10-dihydroxy-9,10-diphenyl-9, 10-dihydroanthracene Host …
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Separation of close isomers by enclathration
The selective inclusion properties of the host compound 1, 1-bis-( 4- hydroxyphenyl)cyclohexane were investigated. This host readily forms inclusion compounds with the isomers of phenylenediamine, benzenediol, picoline and lutidine, as well as selected solvents including methanol, ethanol, …
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The separations of picoline isomers by enclathration
… - derived host compounds towards the isomers of methyl-pyridines (picolines) were studied. Crystals of ten novel inclusion compounds were synthesised and their structural properties were further characterised using an array of techniques. Thermal analysis was also …
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The inclusion behaviour of "wheel-and-axle" host compounds
The inclusion behaviour of three "wheel-and-axle" host molecules was investigated. By virtue of their shape and the way in which they pack these host molecules are able to entrap guest molecules into a host-guest array. The host compounds were: 1,1,6,6-tetraphenyl-hexa-2,4-diyne-1,6-diol (HOST1), …
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Halogen···Halogen interactions in host - guest systems
… that occurs between electron deficient halogen compounds and electron donors. This is an established non-covalent interaction in the solid and gaseous phase. In this thesis, the work presented deals with the investigation of halogen bond interactions in host-guest complexes utilising both …
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The enclathration of alcohols by cholic acid
A series of crystalline Cholic acid inclusion compounds were studied with a view to understanding the role of guest molecules in inducing and stabilizing a particular Cholic acid (host) lattice structure. Alcohols in the series CH₃(CH₂nOH (n= 0 to 3 and 2-propanol) were employed as guest molecules …
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