Crystal structure of [butane-2,3-dione bis(4-methylthiosemicarbazonato](pyridine)zinc(II)

In the structure of the title complex, [Zn(C8H14N6S2)(C5H5N)], the ZnII ion has a pseudo-square-pyramidal coordination environment and is displaced by 0.490 Å from the plane of best fit defined by the bis­(thio­semicarbazonate) N2S2 donor atoms. Chains sustained by intermolecular N-H...N and N-H...S hydrogen-bonding interactions extend parallel to [10-1]

Functionalised polymers by surface modification using diaryl carbenes

This thesis is concerned with the synthesis of diazo compounds for the introduction of various functional groups on the surface of polymers by means of carbene insertion and diazonium coupling. Characterisation and investigation of their properties were conducted. A library of functionalised polystyrene beads containing pyridine rings has been established for the coordination of metal ions and metal complexes. The pyridyl system on the surface has demonstrated its capability to bind with zinc complexes of bis(thiosemicarbazones) and release the corresponding copper complexes upon transmetallation. A spiropyran derivative has been introduced onto the surface of polystyrene and polyethylene terephthalate. The chromophore on both polymers exhibited photoswitchability as determined from colour change and wettability. Polystyrenes with either pyridine or spiropyran units have been investigated for reversible immobilisation of bioactive species. Materials coated with penicillin V gave significant inhibition zones in antibacterial assays, showing efficacy in drug delivery. Finally, a range of diazo compounds with different substituents has been synthesised and their thermal stabilities have been assessed by differential scanning calorimetry technique.</p

翅の弾性変形の影響による推進力の予測に関する研究

九州工業大学博士学位論文（要旨） 学位記番号:情工博甲第269号 学位授与年月日:平成24年9月30日九州工業大

Functionalised polymers by surface modification using diaryl carbenes

This thesis is concerned with the synthesis of diazo compounds for the introduction of various functional groups on the surface of polymers by means of carbene insertion and diazonium coupling. Characterisation and investigation of their properties were conducted. A library of functionalised polystyrene beads containing pyridine rings has been established for the coordination of metal ions and metal complexes. The pyridyl system on the surface has demonstrated its capability to bind with zinc complexes of bis(thiosemicarbazones) and release the corresponding copper complexes upon transmetallation. A spiropyran derivative has been introduced onto the surface of polystyrene and polyethylene terephthalate. The chromophore on both polymers exhibited photoswitchability as determined from colour change and wettability. Polystyrenes with either pyridine or spiropyran units have been investigated for reversible immobilisation of bioactive species. Materials coated with penicillin V gave significant inhibition zones in antibacterial assays, showing efficacy in drug delivery. Finally, a range of diazo compounds with different substituents has been synthesised and their thermal stabilities have been assessed by differential scanning calorimetry technique.This thesis is not currently available in ORA

Surface functional polymer library by post-polymerisation modification using diarylmethylenes: metal ligand catch and release

Functionalised diarylcarbenes can be used as anchoring agents for the introduction of metal chelating ligands onto the surface of a polystyrene substrate, rapidly creating a library of chelating polymers from a common precursor; although exemplified for polystyrene, the method is potentially applicable to a wide range of polymer substrates. Evaluation of the binding of zinc complexes followed by ligand transfer and release of copper complexes indicated that a pyridyl modified system offered considerable potential for application in the rapid generation of ligand systems of relevance for radiopharmaceutical synthesis. © The Royal Society of Chemistry 2012