Objective
Photosynthetic reaction centres (RCs), such as the RC from purple bacteria or photosystems I and II of plants, have their cofactors arranged in a nearly C2 symmetry. Despite this symmetrical arrangement, the electron pathway in RCs of purple bacteria and photosystem II is entirely unidirectional occurring along a single branch. In photosystem I, however, both electron transfer branches are equally active. It appears that the understanding of the very basic principles of the directionality of light-induced electron transfer is lacking. Here we propose to solve this question by combining laser-flash photochemically induced dynamic nuclear polarization (photo-CIDNP) magic angle spinning (MAS) NMR, providing electronic structure information of the highest occupied molecular orbital (HOMO) and the donor triplet at atomic resolution. This experimental data in combination with theoretical calculations will allow reconstructing the lowest unoccupied molecular orbital (LUMO) from which the electron is transferred. Our approach is based on the assumptions that (i) the donor triplet can be approximated by single electron occupation of both HOMO and LUMO, (ii) the structure of the LUMO is responsible for the directionality of the light-induced electron transfer. Hence, we aim at reconstruction of the LUMO of the electron donor as key for understanding directionality. This reconstruction may also stimulate research on artificial photosynthesis, which is currently facing the problem to direct charge separation into macroscopically useful units.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- natural sciences biological sciences microbiology bacteriology
- natural sciences biological sciences botany
- natural sciences mathematics applied mathematics mathematical model
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Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
FP7-PEOPLE-2009-IEF
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Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Coordinator
2311 EZ Leiden
Netherlands
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.