Prof. Christine O'Connor

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Academic Career Length

28Years (1999-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

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1 January 2007 in Chemistry Education Research and Practice

Journal Article

Developing practical chemistry skills by means of student-driven problem based learning mini-projects

Claire McDonnell

Christine O'Connor

Michael K. Seery

Problem-based learning mini-projects (‘PBL mini-projects’) are used as an alternative to the traditional ‘recipe-style’ laboratory teaching method with the aim of enhancing students’ experience of chemistry laboratory practicals. Small groups of students (3–4) in the second year of their degree are assigned a project title and they must devise the experimental protocol to carry it out. This teaching method better reflects real-life problem solving situations. The students responded favourably in their feedback on these laboratory classes. Class attendance and general class morale were found to be noticeably higher than in previous years. This paper describes the implementation of the PBL mini-projects in our teaching laboratories and examines some feedback obtained from the students (42 in total) and teaching staff involved over a two year period (2004/5 and 2005/6). [Chem. Educ. Res. Pract., 2007, 8 (2), 130-139]

1 October 2000 in Coordination Chemistry Reviews

Journal Article

Excited-state properties of ruthenium(II) polypyridyl complexes containing asymmetric triazole ligands

Stefano Fanni

Tia E Keyes

Christine O'Connor

Helen Hughes

Renyi Wang

Johannes G Vos

30 September 2002 in J. Chem. Soc., Dalton Trans.

Journal Article

Ruthenium(ii) and osmium(ii) polypyridyl complexes of an asymmetric pyrazinyl- and pyridinyl-containing 1,2,4-triazole based ligand. Connectivity and physical properties of mononuclear complexesElectronic supplementary information (ESI) available: 1H NMR spectra of 1a and 1b. See http://www.rsc.org/suppdata/dt/b2/b206667j/

Wesley R. Browne

Christine O'Connor

Helen P. Hughes

Ronald Hage

Olaf Walter

Johannes G. Vos

The synthesis, purification and characterisation of two coordination isomers of ruthenium(II) and osmium (II) complexes containing the ligand 3-(pyrazin-2′-yl)-5-(pyridin-2″-yl)-1,2,4-triazole (Hppt) are described. The X-ray and molecular structure of the complex [Ru(bipy)₂(ppt)]PF₆·CH₃OH (1a) is reported, where the Ru(bipy)₂-centre is bound to the ppt⁻ ligand via the pyridine nitrogen and the N1 atom of the triazole ring. ¹H NMR spectroscopic measurements confirm that in the second isomer (1b) the Ru(bipy)₂-moiety is bound via the N2 atom of the triazole ring and the pyrazine ring. Partially deuteriated metal complexes are utilised to facilitate interpretation of ¹H NMR spectra. The redox and electronic properties indicate that there are significant differences in the electronic properties of the two coordination isomers obtained. The acid–base properties of the compounds are also reported and show that the pK_a of the 1,2,4-triazole ring varies systematically depending on the nature of the non-coordinating substituent. Analysis of these data indicates a significant electronic interaction between the pyridyl/pyrazyl rings and the 1,2,4-triazole ring in the coordinated ppt⁻ ligand.

1 January 2000 in J. Chem. Soc., Dalton Trans.

Journal Article

Bis(R-bipyridyl)ruthenium bibenzimidazole complexes (R = H, Me or But ): supramolecular arrangement via hydrogen bonds, photo- and electro-chemical properties and reactivity towards carbon dioxide

Sven Rau

Mario Ruben

Torsten Büttner

Christian Temme

Sylvana Dautz

Johannes G. Vos

Complexes of the type [Ru(H₂bibzim)(R-bpy)₂X₂·nH₂O (R = H, 2,2′-bipyridine, bpy, X = CF₃SO₃ ⁻1; R = Me, 4,4′-dimethyl-2,2′-bipyridine, dmbpy, X = PF₆ ⁻2; R = tert-butyl, 4,4′-di-tert-butyl-2,2′-bipyridine, tbbpy, X = Cl⁻3; H₂bibzim = 1,1′-bibenzimidazole) containing two NH functions acting as hydrogen bond donors formed different spatially highly organised supramolecular assemblies with water. X-Ray investigation revealed that the nature of the counter ion influences the hydrogen bonding pattern and extent of spatial organisation. In 2 one dimensional chains of hydrogen bonded water could be found. In the deprotonated complex [Ru(bibzim)(tbbpy)₂] 4 water molecules serve as hydrogen bond donors. The diastereomeric forms 5a/5b of the homodinuclear ruthenium complex [{Ru(tbbpy)₂}₂(bibzim)][PF₆]₂ could be separated. No differences in their photophysical properties could be detected. The X-ray investigation of 5a and [{Ru(bpy)₂}₂(bibzim)][PF₆]₂6 showed little influence of peripheral substitution on structural properties. Complexes 3–5 exhibit activity in electrochemical CO₂ reduction which can be tuned by variation of the degree of protonation of the bibenzimidazole.

10 October 2018 in Comprehensive Reviews in Food Science and Food Safety

Journal Article

Chlorate and Other Oxychlorine Contaminants Within the Dairy Supply Chain

William McCarthy

Tom O'Callaghan

Martin Danahar

David Gleeson

Christine O'Connor

John Thomas Tobin

The presence of chlorate in milk and dairy products can arise from the use of chlorinated water and chlorinated detergents for cleaning and sanitation of process equipment at both farm and food processor level. Chlorate and other oxychlorine species have been associated with inhibition of iodine uptake in humans and the formation of methemoglobin, with infants and young children being a high‐risk demographic. This comprehensive review of chlorate and chlorine derivatives in dairy, highlights areas of concern relative to the origin and/or introduction of chlorate within the dairy supply chain. This review also discusses the associated health concerns, regulations, and chemical behavior of chlorate and chlorine‐derived by‐products, and provides a summary of mechanisms for their detection and removal.

8 January 2005 in Journal of the American Chemical Society

Journal Article

Ground- and Excited-State Electronic Structure of an Emissive Pyrazine-Bridged Ruthenium(II) Dinuclear Complex

Wesley R. Browne

Noel M. O'Boyle

William Henry

Adrian L. Guckian

Sabine Horn

Johannes G. Vos

About Me

Prof Christine O’Connor is currently the Head of Research and Innovation, Faculty of Sciences and Health in TU Dublin. She completed her PhD with Prof Han Vos in Dublin City University in 1999. On completion of her PhD Christine managed an analytical EU CRAFT project titled ‘Experimental validation of a novel multipurpose ‌distillation technology’ in Dublin Institute of Technology (DIT) with Dr John Fox. 2000 to 2004 she became an Assistant Lecturer in the School of Chemical and Pharmaceutical Sciences, DIT. Christine was a Lecturer in the School of Chemical and Pharmaceutical Sciences from 2004-2014. With her colleagues she won two national awards (i) National Academy for the integration of Research, Teaching and Learning (NAIRTL) Teaching Excellence Award in 2009 and (ii) the DELTA National third level teaching award in 2018. Christine was appointed Assistant Head of School of Food Science and Environmental Health, DIT in 2014. She received an Honorary Professorship from Dublin Institute of Technology in 2018. She is a Fellow of the Royal Society of Chemistry (RSC) since 2020. Christine is an active researcher in the areas of waste valorisation and bioactive analysis, environmental and trace chemical analysis in food, water and beverage products. She has also a depth of experience in curriculum design and has been working with developing countries on course design at under at undergraduate and postgraduate third level Universities.

Prof. Christine O'Connor

Prof. Christine O'Connor

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