10 research outputs found
British Balance of Competence Reviews, Part II: Again, a huge contradiction between the evidence and Eurosceptic populism. EPIN Paper No. 40, June 2014
This paper is the second in a series for a CEPS project entitled âThe British Question and the Search for a Fresh European Narrativeâ. It is pegged on an ambitious exercise by the British government to review all the competences of the European Union on the basis of evidence submitted by independent stakeholders. In all, 32 sectoral policy reviews are being produced over the period 2013-2015, as input into public information and debate leading up to a referendum on whether the UK should remain in, or secede from, the EU, planned for 2017. This second set of reviews covers a broad range of EU policies (for the single market for goods, external trade, transport policy, environment, climate change, research, asylum, non-EU immigration, civil judicial cooperation, tourism, culture and sport). The findings confirm what emerged from the first set of reviews,
namely that there is little or no case for repatriation of EU competences at the level they are defined in the treaties. This does not exclude that at a more detailed
level there can be individual actions or laws that might be done better or not at all. However, that is the task of all the institutions to work at on a regular basis, and hardly a rationale for secession. For the UK in particular the EU has shown considerable flexibility in agreeing to special arrangements, such as in the case of the policies here reviewed of asylum, non-EU immigration and civil judicial cooperation. In other areas reviewed here, such as the single market for goods, external trade, transport, environment, climate change and research, there is a good fit between the EUâs policies and UK priorities, with the EU perceived by stakeholders as an âamplifierâ of British
interests
Britainâs Future in Europe: The known Plan A to remain or the unknown Plan B to leave. CEPS Paperback 2nd Ed., March 2016
Following the agreement made by Prime Minister David Cameron with the EU on 18-19 February 2016, the day for the referendum for the UK to remain in or leave the EU is set for 23 June 2016. This will be the most important decision taken by the British people in half a century, and whose consequences will live on for another half century.
The first edition of this book, published in March 2015, laid the foundations for any objective assessment of the workings of the EU and the UKâs place in it. It was widely acclaimed and rated as âa myth-breaking exercise of the best kindâ.
This second edition adds a substantial new chapter following Cameronâs agreement with the EU and announcement of the referendum. It reviews both the âPlan Aâ, namely the status quo for the UK in the EU as amended by the new agreement, and three variants of a âPlan Bâ for secession. The key point is that the âleaveâ camp have not done their homework or âdue diligenceâ to specify the post-secession scenario, or how the British government would face up to the challenges that this would bring. The authors therefore do the âleaveâ campâs homework for them, setting out three Plan Bs more concretely and in more depth than the âleaveâ camp have been able or wanted to do, or any other source has done.
The book is therefore unique and essential reading for anyone concerned with the fateful choice that lies soon ahead
Supplementary data for the article: Guan, J.; Wriglesworth, A.; Sun, X. Z.; Brothers, E. N.; ZariÄ, S. D.; Evans, M. E.; Jones, W. D.; Towrie, M.; Hall, M. B.; George, M. W. Probing the Carbon-Hydrogen Activation of Alkanes Following Photolysis of TpâČRh(CNR)(Carbodiimide): A Computational and Time-Resolved Infrared Spectroscopic Study. Journal of the American Chemical Society 2018, 140 (5), 1842â1854. https://doi.org/10.1021/jacs.7b12152
Peer-reviewed manuscript: [http://cherry.chem.bg.ac.rs/handle/123456789/2893]Related to published version: [http://cherry.chem.bg.ac.rs/handle/123456789/2091]Related to accepted version: [http://cherry.chem.bg.ac.rs/handle/123456789/2893
Supplementary data for the article: Pitts, A. L.; Wriglesworth, A.; Sun, X.-Z.; Calladine, J. A.; ZariÄ, S. D.; George, M. W.; Hall, M. B. Carbon-Hydrogen Activation of Cycloalkanes by Cyclopentadienylcarbonylrhodium-A Lifetime Enigma. Journal of the American Chemical Society 2014, 136 (24), 8614â8625. https://doi.org/10.1021/ja5014773
Supplementary material for: [https://doi.org/10.1021/ja5014773]Related to published version: [http://cherry.chem.bg.ac.rs/handle/123456789/1792
Calculating singlet excited states: comparison with fast time-resolved infrared spectroscopy of coumarins
In contrast to the ground state, the calculation of the infrared (IR) spectroscopy of molecular singlet excited states represents a substantial challenge. Here we use the structural IR fingerprint of the singlet excited states of a range of coumarin dyes to assess the accuracy of density functional theory based methods for the calculation of excited state IR spectroscopy. It is shown that excited state Kohn-Sham density functional theory provides a high level of accuracy and represents an alternative approach to time-dependent density functional theory for simulating the IR spectroscopy of the singlet excited states
Supplementary data for the article: Guan, J.; Wriglesworth, A.; Sun, X. Z.; Brothers, E. N.; ZariÄ, S. D.; Evans, M. E.; Jones, W. D.; Towrie, M.; Hall, M. B.; George, M. W. Probing the Carbon-Hydrogen Activation of Alkanes Following Photolysis of TpâČRh(CNR)(Carbodiimide): A Computational and Time-Resolved Infrared Spectroscopic Study. Journal of the American Chemical Society 2018, 140 (5), 1842â1854. https://doi.org/10.1021/jacs.7b12152
Peer-reviewed manuscript: [http://cherry.chem.bg.ac.rs/handle/123456789/2893]Related to published version: [http://cherry.chem.bg.ac.rs/handle/123456789/2091]Related to accepted version: [http://cherry.chem.bg.ac.rs/handle/123456789/2893
Influence of molecular design on radical spin multiplicity: characterisation of BODIPY dyad and triad radical anions
This journal is © the Owner Societies. A strategy to create organic molecules with high degrees of radical spin multiplicity is reported in which molecular design is correlated with the behaviour of radical anions in a series of BODIPY dyads. Upon reduction of each BODIPY moiety radical anions are formed which are shown to have different spin multiplicities by electron paramagnetic resonance (EPR) spectroscopy and distinct profiles in their cyclic voltammograms and UV-visible spectra. The relationship between structure and multiplicity is demonstrated showing that the balance between singlet, biradical or triplet states in the dyads depends on relative orientation and connectivity of the BODIPY groups. The strategy is applied to the synthesis of a BODIPY triad which adopts an unusual quartet state upon reduction to its radical trianion
Carbon-Hydrogen Activation of Cycloalkanes by Cyclopentadienylcarbonylrhodium-A Lifetime Enigma
Carbon-hydrogen bond activation reactions of four cycloalkanes (C5H10, C6H12, C7H14, and C8H16) by the Cp'Rh(CO) fragments (Cp' = eta(5)-C5H5 (Cp) or eta(5)-C5Me5 (Cp*)) were modeled theoretically by combining density functional and coupled cluster theories, and their reaction rates were measured by fast time-resolved infrared spectroscopy. The reaction has two steps, starting with the formation of a a-complex intermediate, followed by oxidative addition of the C-H bond by the rhodium. A range of a-complex stabilities among the electronically unique C-H bonds in a cycloalkane were calculated and are related to the individual strengths of the C-H bond's interactions with the Rh fragment and the steric repulsion that is incurred upon forming the specific a-complex. The unexpectedly large increase in the lifetimes of the a-complexes from cyclohexane to cycloheptane was predicted to be due to the large range of stabilities of the different sigma-complexes found for cycloheptane.. The reaction lifetimes were simulated with two mechanisms, with and without migrations among the different complexes, to determine if ring migrations prior to C-H activation were influencing the rate. Both mechanisms predicted similar lifetimes for cyclopentane, cyclohexane, and, to a lesser extent, cycloheptane, suggesting ring migrations do not have a large impact on the rate of C-H activation for these cycloalkanes. For cyclooctane, the inclusion of ring migrations in the reaction mechanism led to a more accurate prediction of the lifetime, indicating that ring migrations did have an effect on the rate of C-H activation for this alkane, and that migration among the a-complexes is faster than the C-H activation for this larger cycloalkane.Supplementary material: [http://cherry.chem.bg.ac.rs/handle/123456789/3685
CarbonâHydrogen Activation of Cycloalkanes by CyclopentadienylcarbonylrhodiumîžA Lifetime Enigma
Carbonâhydrogen
bond activation reactions of four cycloalkanes
(C<sub>5</sub>H<sub>10</sub>, C<sub>6</sub>H<sub>12</sub>, C<sub>7</sub>H<sub>14</sub>, and C<sub>8</sub>H<sub>16</sub>) by the CpâČRhÂ(CO)
fragments (CpâČ = η<sup>5</sup>-C<sub>5</sub>H<sub>5</sub> (Cp) or η<sup>5</sup>-C<sub>5</sub>Me<sub>5</sub> (Cp*)) were
modeled theoretically by combining density functional and coupled
cluster theories, and their reaction rates were measured by fast time-resolved
infrared spectroscopy. The reaction has two steps, starting with the
formation of a Ï-complex intermediate, followed by oxidative
addition of the CâH bond by the rhodium. A range of Ï-complex
stabilities among the electronically unique CâH bonds in a
cycloalkane were calculated and are related to the individual strengths
of the CâH bondâs interactions with the Rh fragment
and the steric repulsion that is incurred upon forming the specific
Ï-complex. The unexpectedly large increase in the lifetimes
of the Ï-complexes from cyclohexane to cycloheptane was predicted
to be due to the large range of stabilities of the different Ï-complexes
found for cycloheptane. The reaction lifetimes were simulated with
two mechanisms, with and without migrations among the different Ï-complexes,
to determine if ring migrations prior to CâH activation were
influencing the rate. Both mechanisms predicted similar lifetimes
for cyclopentane, cyclohexane, and, to a lesser extent, cycloheptane,
suggesting ring migrations do not have a large impact on the rate
of CâH activation for these cycloalkanes. For cyclooctane,
the inclusion of ring migrations in the reaction mechanism led to
a more accurate prediction of the lifetime, indicating that ring migrations
did have an effect on the rate of CâH activation for this alkane,
and that migration among the Ï-complexes is faster than the
CâH activation for this larger cycloalkane