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Compounds with dihydroquinoline-4(1H)-one nuclei have been reported in the literature for being important in the development of medicines due to their broad spectrum of activities. In this way, the structural knowledge of this class becomes relevant for obtaining new materials with desired biological properties. This study presents the structural elucidation of five halogenated dihydroquinolines, as well as the discussion about the effect on the molecular conformation of the type and position of halogen atom on aromatic rings. Compounds I and IV differ in halogen substitution on 2-phenyl ring, while compounds III and V differ in halogen substitution on the benzylidene ring. LDK378 Moreover, compound II has a para-substituted 2-phenyl ring in their molecular structure. The crystal packing of all five molecules is mainly ruled by C-H⋯O and C-H···halogen interactions that form dimers and chains. The shift in position and the kind of the halogen in ring C shows a starring role in the conformation of the studied compounds, and the packaging of these compounds is more susceptible to variations when the halogen position changes.Electrophilic aromatic substitution produces edge-specific modifications to CVD graphene and graphene nanoplatelets that are suitable for specific attachment of biomolecules.European governments are struggling to regain economic strength in the coronavirus pandemic as in many countries the number of new infections seems to gradually subside. Growth rates deep in the red call for a reconstruction programme when the crisis is finally manageable and economic activity can resume. Amidst this, there are again influential groups that claim "this is not the time to insist on strict climate protection goals". On the contrary, the ongoing COVID-19 crisis has clearly illustrated what climate disasters, often occurring locally, could do to the life of citizens. The reconstruction programme needs to initiate the great green transition. The transformation from a climate-distorting to a climate-protecting economy opens up investment opportunities and points to financing needs comparable with those necessary for the rebuilding of the European economy after World War II. The great green transition is a unique chance to pursue policies for a new and sustainable growth regime.The premise of this paper is that state aid to distressed companies should benefit not only the current owners but also the employees, who are the ones taking personal risks to continue or restart companies. Government aid during the Great Recession was aimed primarily at restoring the status quo. In the current deeper crisis, aid should be designed to create a fairer, more inclusive and more socially responsible economy by promoting employee ownership as both an incentive and a reward. We show how the Employee Stock Ownership Plan, which has been pioneered in the US for 40 years and can be adapted to the European legal context, can be used as the vehicle for structuring this aid.This paper discusses how the technical foundations of the EU's fiscal rules constrain the fiscal space in EU countries in the context of the COVID-19 pandemic. We review the evidence on how estimates of potential output, which are at the heart of essential control indicators in EU fiscal surveillance, were revised in the ten years running up to the COVID-19 pandemic, and how these revisions affected the fiscal stance of EU countries. We provide first evidence for downward revisions in the European Commission's potential output estimates against the background of the COVID-19 shock across the EU27 countries, and we assess the potential consequences in terms of fiscal space. According to our results, one additional percentage point in predicted losses of actual output is associated with a loss in potential output of about 0.6 percentage points. Given the importance of model-based estimates in the EU's fiscal rules, avoiding pro-cyclical fiscal tightening will require that policymakers' hands are not tied by overly pessimistic views on the development of potential output.Policymakers, experts and the general public heavily rely on the data that are being reported in the context of the coronavirus pandemic. Daily data releases on confirmed COVID-19 cases and deaths provide information on the course of the pandemic.While the COVID-19 pandemic posits a significant challenge to all societies around the world, it also reveals in the most dramatic manner the many abysmal differences between so-called advanced economies and the developing world.The long-term fiscal and economic damage of eurobonds in a rule-based fiscal architecture - as history corroborates - would be greater than the historical challenge of the coronavirus pandemic, unless there is a political union in Europe.With public debt-to-GDP levels now set to surpass post-war records and Italy's ratio approaching levels reached in Greece on the eve of the country's debt restructuring in early 2012, fears of a return of the sovereign debt crisis have emerged.Although austerity was particularly strong in the aftermath of the economic crisis of 2008 and its consequences in the euro area, Italian fiscal policies have been characterised by tough consolidation periods ever since the 1990s.Although the common perception is that the pandemic is 'the great equaliser', workers' tasks, contractual framework and position in the internal organisational hierarchy strongly affect their ability to work remotely.On 2 April 2020, the European Commission (2020) duly put forward a proposal for the creation of a European instrument for temporary Support to mitigate Unemployment Risks in an Emergency (SURE). This bold and innovative move must be welcome, but the actual profile of this new instrument requires clarification to avoid misunderstandings, false expectations and eventual disappointment.The COVID-19 pandemic carries heavy threats, and preserving stable and coordinated international trade relations will be essential to avoid catastrophic disorders or conflicts.Sooner or later, the ECB must accept that monetary financing in support of deficit spending is a necessity not just for mitigating the coronavirus crisis, but also for averting a downward deflationary cycle that could pull the eurozone apart.