Julia WeinsteinProf. Julia A. Weinstein

Professor of Physical Chemistry

Room: C75

Tel: +44-(0)114-22-29408

Fax: +44-(0)114-22-29436

email:

 


 

Biographical Sketch

Dr. Weinstein obtained her Diploma in Chemistry (with honours) from Moscow Lomonosov State University in 1990, followed by a PhD from the same institution in 1994, where she became a member of staff. In 2000 she became a Royal Society/NATO postdoctoral Fellow at the University of Nottingham, which was followed by a temporary lectureship at the same institution. In 2004 she was appointed as EPSRC advanced Research Fellow and obtained a lectureship at the University of Sheffield. In 2010 she was promoted to senior lecturer, followed by a promotion to reader in 2015.

Awards

Lomonosov Award in Science (2003); John Van Geuns Lecture (2004); RSC Chemical Dynamics Award (2017)

Research Keywords

Photochemistry, photophysics, time-resolved spectroscopy, luminescence, light-induced electron transfer in chemical and biological systems, solar energy conversion, ultrafast excited state dynamics.

Teaching Keywords

Photochemistry; Mathematics, Chemical Kinetics

Selected Publications:

 

Research Interests

Most broadly, our research group is interested in any aspects of interaction of light with matter in condensed phase.

The main focus of our research is (1) Ultrafast dynamics of electron and energy transfer in condensed phase; and (2) Chemical Approach to Solar Energy Conversion.

The conversion of light into chemical energy lies at the heart of many natural processes and man-made applications. A charge-separated species generated via an excited state is the key intermediate in this process. Stabilisation of this intermediate is the key issue and pivotal to developing efficient artificial systems. We develop methodologies for controlling stability of charge-transfer excited states by manipulating environment and structural properties of model systems based on transition metal complexes, with potential application in molecular wires, electronics and photonics. The interdisciplinary research uses a combination of organometallic synthesis, time-resolved electronic and vibrational spectroscopy and theory to explore the fundamental aspects underlying this work crossing from controlling photomolecular properties of materials to designing molecular architecture for photo-induced electron transfer.

Other research areas include:

  • Highly luminescent metal chromophores for imaging and sensing.
  • Development of compounds which emit in the NIR spectral range.
  • Development of photostable photo-sensitisers of singlet oxygen – the key recative oxygen species – and understanding of underlying chemical rules to the efficiecy of its generation.
  • Free radicals in chemistry and biology.

The main techniques involved in our research comprise:

  • (Spectro)electrochemistry;
  • Time-resolved electronic spectroscopy – absorption and emission;
  • Time-resolved vibrational spectroscopy - infra-red and (resonance) Raman.
  • Pulse radiolysis.

We collaborate with the UK National Facility - Rutherford Appleton Laboratory, Science and Technology Facilities Council, member of LaserLab Europe, and with various laboratories world-wide, including USA, Switzerland, Germany and Buelorussia.

Teaching Section

Physical Chemistry

Courses Taught

  • Mathematics for chemists 2 (Year 1)
    This course teaches basic practical skills in performing differentiation and integration; it introduces the link between those and practical chemistry (kinetics, thermodynamics, synthetic organic and inorganic chemistry, polymer chemistry, practical laboratory work and others); and creates a basis for the courses where more advanced mathematics will be introduced.
  • Chemical Reaction Kinetics (Year 2)
    This segment provides an introduction into kinetic analyses of complex reaction mechanisms.
  • Photochemistry and Molecular Photonics (Year 4)
    This course describes basic theoretical considerations, experimental methods, and applications of one of the key fundamental processes - electron transfer - in chemistry, photochemistry, biochemistry and related disciplines.

Tutorial & Workshop Support

  • First Year Workshops.
  • Second Year Physical tutorials.
  • Third Year Literature Review.
  • Fourth Year Workshops.

Laboratory Teaching

  • Second Year Lab Demonstrating.
  • Third Year Lab Demonstrating. Supervising a research mini-project in 3rd year laboratory: "Photochemistry".
  • Fourth Year Research Project.

Journal articles

Chapters

Conference proceedings papers

  • Delor M, Scattergood PA, Sazanovich IV, Keane T, Greetham GM, Meijer AJHM, Towrie M, Parker AW & Weinstein JA (2015) Controlling electron transfer in condensed phase with bond-specific infrared excitation. Proceedings of SPIE - The International Society for Optical Engineering, Vol. 9549
  • Raza A, Colley H, Baggaley E, Botchway S, Macneil S, Weinstein J & Haycock J (2014) Oxygen difference in live melanoma muticellular tumour spheroids using novel platinum compound and time-resolved imaging microscopy. JOURNAL OF TISSUE ENGINEERING AND REGENERATIVE MEDICINE, Vol. 8 (pp 314-314)
  • Weinstein JA, Sazanovich IV, Delor M, Scattergood PA, Meijer AJHM, Portius P, Greetham G, Parker AW & Towrie M (2013) Ultrafast photoinduced charge-separation in molecular systems: Time-resolved IR, transient 2DIR, and controlling the rates and the pathways by vibrational perturbation. ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, Vol. 245
  • Parker SC, Archer S, Delor M, Towrie M, Sazanovich IV & Weinstein JA (2013) Transition metal photocatalysts for heterogeneous H-2 production and CO2 reduction. ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, Vol. 245
  • Baggaley E, Sazanovich IV, Williams JAG, Haycock JW, Botchway SW & Weinstein JA (2013) Time-resolved two-photon emission imaging microscopy with transition metal complexes (TPE-TREM). ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, Vol. 245
  • Delor M, Scattergood P, Sazanovich I, Towrie M, Greetham GM, Parker AW & Weinstein JA (2013) Modulating electron transfer in transition metal complexes by perturbing bridge vibrations in electronically excited states. ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, Vol. 245
  • van der Veen RM, Milne CJ, Pham VT, El Nahhas A, Weinstein JA, Best J, Borca CN, Bressler C & Chergui M (2008) EXAFS structural determination of the Pt-2(P2O5H2)(4)(4-) anion in solution. CHIMIA, Vol. 62(4) (pp 287-290)