1.° Lex Longobardorum. — 2.° Lex Alamannorum. — 3.° Lex Bajuariorum. — 4.° Legis Longobardorum libri quatuor : accedunt glossae. — Hujusce codicis tres primae partes undecimo saeculo, altera decimo quarto videtur exarata.

Colbertinus

1.° Ordinis Cisterciensis origo, statuta, usus et officia ecclesiastica. — 2.° Ivonis, Carnotensis, epistolae. — 3.° Ejusdem sermones. — 4.° Lucii, Papae, et aliorum rescripta pro monasterio Lirensi. — 5.° Vetus librorum ejusdem monasterii catalogus. — 6.° Liber censuum et ecclesiarum ad idem monasterium pertinentium

Puteanus

1.° Vita et gesta sancti Pardulfi, Confessoris. — 2.° Passio sancti Barnabae. — 3.° Canticum canticorum. — 4.° Proverbia Salomonis. — 5.° Ecclesiastes. — 6.° Anonymi commentarius in Canticum canticorum ; incipit : Vox Ecclesiae. — 7.° Liber Sapientiae. — 8.° Ecclesiasticus. — 9.° Vita sancti Martialis, Apostoli. — Initio voluminis folia quaedam reperias è quibus constat veteri Ecclesiae consuetudine plures Sacerdotes administrando Extremaeunctionis sacramento olim interfuisse, et suam singulos orationem et benedictionem pronunciasse. — Hujusce codicis pars decimo, pars decimo tertio saeculo videtur exarata.

Sancti Martialis Lemovicensis

1.° P. Ovidii Nasonis liber de remedio amoris. — 2.° Catonis disticha de moribus. — 3.° Theoduli ecloga. — 4.° Anonymi carmen morale de contemptu mundi. — 5.° Aesopi fabulae, versibus heroïcis. — 6.° Matthaei Vindocinensis ad Bartholomaeum, Turonensem Archiepiscopum, Tobias, sive metaphrasis libri Tobiae, versibus elegiacis. — 7.° Ovidii liber de remedio amoris : finis desideratur.

Puteanus

1.° Johannicii introductio ad artem parvam Galeni. — 2.° Hippocratis prognostica. — 3.° Ejusdem aphorismi. — 4.° Theophili liber de urinis. — 5.° Ars parva Galeni. — 6.° Hippocratis liber de regimine acutorum. — 7.° Philareti liber de pulsibus. — 8.° Isaaci, Israëlitae, diaetae universales et particulares. — 9.° Ejusdem liber de urinis : interprete Constantino, Monacho Cassinensi. — 10.° Ejusdem Isaaci libri quinque de febribus : eodem interprete. — 11.° Ejusdem liber de definitionibus. — 12.° Ejusdem liber de elementis.

Colbertinus

1.° Johannicii introductio ad artem parvam Galeni : passim inter lineas glossae et ad marginem scholia. — 2.° Hippocratis aphorismi, cum similibus glossis et scholiis. — 3.° Ejusdem prognostica. — 4.° Rogerina major.

Philiberti de la Mare

1.° Richardi, Anglici, tractatus de anatomia. — 2.° Ejusdem summa de diebus criticis. — 3.° Ejusdem practica. — 4.° Rogerii, Cancellarii Studii Montispessulani, summa, sive, Rogerina major, minor et media. — 5.° Summa secundùm Trotulam. — 6.° Cleopatrae ad Deodatam liber de morbis mulierum. — 7.° Gilberti, Cancellarii Studii Montispessulani, experimenta. — 8.° Anonymus de mulierum aegritudinibus. — 9.° Anonymi antidotarium. — 10.° Anonymus de ponderibus et mensuris. — 11.° Synonyma medica. — 12.° Galeni antibalomena. — 13.° Nicolai antidotarium.

DD. de Bethune

Orientation of Non-Native 2-Monosubstituted and 2,3-Disubstituted 1,4-Naphthoquinones in the A1 binding site of PSI and the effect on the rate of electron transfer : an electron paramagnetic resonance spectroscopy study

The proce-ss ofoxygenic photosynthesis is vital to life on Earth. the central event in photosynthesis is light induced electron transfer that converts light into energy for growth. Ofparticular significance is the membrane bound multisubunit protein known as Photosystem I (PSI). PSI is a reaction centre that is responsible for the transfer of electrons across the membrane to reduce NADP+ to NADPH. The recent publication ofa high resolution X-ray structure of PSI has shown new information about the structure, in particular the electron transfer cofactors, which allows us to study it in more detail. In PSI, the secondary acceptor is crucial for forward electron transfer. In this thesis, the effect of removing the native acceptor phylloquinone and replacing it with a series of structurally related quinones was investigated via transient electron paramagnetic resonance (EPR) experiments. The orientation of non native quinones in the binding site and their ability to function in the electron transfer process was determined. It was found that PSI will readily accept alkyl naphthoquinones and anthraquinone. Q band EPR experiments revealed that the non-native quinones are incorporated into the binding site with the same orientation of the headgroup as in the native system. X band EPR spectra and deuteration experiments indicate that monosubstituted naphthoquinones are bound to the Al site with their side group in the position occupied by the methyl group in native PSI (meta to the hydrogen bonded carbonyl oxygen). X band EPR experiments show that 2, 3- disubstituted methyl naphthoquinones are also incorporated into the Al site in the same orientation as phylloquinone, even with the presence of a halogen- or sulfur-containing side chain in the position normally occupied by the phytyl tail ofphylloquinone. The exception to this is 2-bromo-3-methyl --.- _. -. - -- - - 4 _._ _ _ - _ _ naphthoquinone which has a poorly resolved spectrum, making determination of the orientation difficuh. All of the non-native quinones studied act as efficient electron acceptors. However, forward electron transfer past the quinone could only be demonstrated for anthraquinone, which has a more negative midpoint potential than phylloquinone. In the case of anthraquinone, an increased rate of forward electron transfer compared to native PSI was found. From these results we can conclude that the rate ofelectron transfer from Al to Fx in native PSI lies in the normal region ofthe Marcus Curve.

The tautomerism, solvatochromism and non-linear optical properties of fluorescent 3-hydroxyquinoxaline-2-carboxalidine-4-aminoantipyrine

The Schiff base, 3-hydroxyquinoxaline-2-carboxalidine-4-aminoantipyrine, was synthesized by the condensation of 3-hydroxyquinoxaline-2-carboxaldehyde with 4-aminoantipyrine. HPLC, FT-IR and NMR spectral data revealed that the compound exists predominantly in the amide tautomeric form and exhibits both absorption and fluorescence solvatochromism, large stokes shift, two electron quasireversible redox behaviour and good thermal stability, with a glass transition temperature of 104oC. The third-order non-linear optical character was studied using open aperture Z-scan methodology employing 7 ns pulses at 532 nm. The third-order non-linear absorption coefficient, b, was 1.48 x 10-6 cm W-1 and the imaginary part of the third-order non-linear optical susceptibility, Im c(3), was 3.36 x10-10 esu. The optical limiting threshold for the compound was found to be 340 MW cm-2.

The tautomerism, solvatochromism and non-linear optical properties of fluorescent 3-hydroxyquinoxaline-2-carboxalidine-4-aminoantipyrine

The Schiff base, 3-hydroxyquinoxaline-2-carboxalidine-4-aminoantipyrine, was synthesized by the condensation of 3-hydroxyquinoxaline-2-carboxaldehyde with 4-aminoantipyrine. HPLC, FT-IR and NMR spectral data revealed that the compound exists predominantly in the amide tautomeric form and exhibits both absorption and fluorescence solvatochromism, large stokes shift, two electron quasireversible redox behaviour and good thermal stability, with a glass transition temperature of 104 oC. The third-order non-linear optical character was studied using open aperture Z-scan methodology employing 7 ns pulses at 532 nm. The third-order non-linear absorption coefficient, b, was 1.48 x 10-6 cm W-1 and the imaginary part of the third-order non-linear optical susceptibility, Im c(3), was 3.36x10-10 esu. The optical limiting threshold for the compound was found to be 340 MW cm-2.