OPEN Repository

Welcome to OPEN - the Repository of Open Scientific Publications, run by the Interdisciplinary Centre for Mathematical and Computational Modelling, University of Warsaw, previously operating as the CeON Repository. The Repository enables Polish researchers from all fields to openly share their articles, books, conference materials, reports, doctoral theses, and other scientific texts.

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α-Selective syn-Carbotrifluoromethylthiolation of Alkynes
(American Chemical Society, 2025) Shah, Prachi; Chaładaj, Wojciech; Institute of Organic Chemistry, Polish Academy of Sciences
Trifluoromethylthiolative difunctionalization of alkynes typically proceeds in an anti-fashion delivering the SCF3 group in the β-position (anti-Markovnikov). Herein, we disclose a vicinal syn-arylation-trifluoromethylthiolation of alkynes enabling α-selective introduction of the SCF3 group (Markovnikov). The unique selectivity was achieved via a merge of Ni-catalyzed carbomagnesiation with a subsequent Cu-mediated trifluoromethylthiolation of the resulting vinyl-magnesium species. The former component of the sequential process determines both the regio- and stereoselectivity of the overall transformation.
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Relative rates of addition of carbanions to substituted nitroarenes: can quantum chemical calculations give meaningful predictions?
(Royal Society of Chemistry, 2025) Błaziak, Kacper; Świder, Paweł; Mąkosza, Mieczysław; Danikiewicz, Witold; Faculty of Chemistry, University of Warsaw; Biological and Chemical Research Center, University of Warsaw; Institute of Organic Chemistry, Polish Academy of Sciences
Computational description and kinetic properties based on density functional theory methods of the key step of the addition reaction between a model nucleophile and nitroaromatic ring in positions occupied by hydrogen are presented. A wide series of DFT functionals (PBE0, B3LYP, ωB97XD, M062X, PBE1PBE-D3, B3LYP-D3 and APFD) was used to track the influence of functional groups in nitroaromatic rings on reaction activation barriers. The comparison of experimentally determined relative rates of nucleophilic addition and their calculated thermodynamic counterparts at various positions in a series of ortho-, meta- and para-substituted nitroarenes are provided. It was shown that different DFT methods provide a good correlation between computed thermodynamic parameters and logarithms of experimental relative reaction rates. In addition, presented results show that DFT computations can be used for reliable prediction of relative reaction rates of vicarious nucleophilic substitution (VNS)-type of reactions. This work provides a valuable tool in the form of structure–thermodynamic property correlation data that can be used in the synthesis design process or QSAR type of analysis, where explicit trends are often required.
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Klauzule w umowie inwestycyjnej w start-upie
(Uczelnia Łazarskiego, 2025) Sieradzka, Małgorzata; Uczelnia Łazarskiego
W monografii przedstawiono szczegółową analizę wybranych zagadnień dotyczących umów inwestycyjnych w start-upach. Wszystkie teksty ukazują znaczenie tej problematyki oraz jej skomplikowany charakter. Autorzy nie tylko omawiają umowy inwestycyjne oraz ich elementy, ale też prezentują własne poglądy na praktyczne funkcjonowanie postanowień zabezpieczających interesy stron takich umów. Start-upy, rozumiane jako rozwojowe przedsięwzięcia gospodarcze mające służyć wprowadzaniu na rynek innowacyjnych produktów lub usług, mają duże znaczenie dla rozwoju gospodarki. Pomimo nastawienia na relatywnie krótką działalność oraz stosunkowo wysokie ryzyko biznesowe z nimi związane, mają duże znaczenie dla współczesnej gospodarki opartej na stałym poszukiwaniu innowacyjnych rozwiązań przy wykorzystaniu nowych technologii. Funkcjonowanie start-upów generuje swoiste problemy prawne, w tym kontraktowe, wymagające spojrzenia skupionego właśnie na tej formie działalności gospodarczej.
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The Role of Global Value Chains for Worker Tasks and Wage Inequality
(Wiley, 2024-08-26) Lewandowski, Piotr; Madoń, Karol; Winkler, Deborah; Institute for Structural Research; SGH Warsaw School of Economics; Global Trade and Regional Integration Unit, World Bank Group
This paper studies the relationship between global value chain (GVC) participation, worker-level routine task intensity (RTI), and wage inequality within countries. Using survey data from 34 countries and instrumenting for GVC participation, we find that higher GVC participation contributes to higher wage inequality in high-income countries and lower wage inequality in middle- and low-income countries. We distinguish between two opposite-working channels. Firstly, participation in GVCs directly reduces wage inequality, suppressing wages in offshorable occupations that tend to earn above the country-specific median, and increasing wages of non-offshorable occupations. Secondly, it indirectly widens within-country wage inequality by increasing the gap in RTI, which is negatively associated with wages, between offshorable and non-offshorable occupations. The direct effect prevails in most low- and middle-income countries that receive offshored jobs, and the indirect effect prevails in high-income countries that offshore jobs.
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Overcoming the crisis: Social and ecological impacts of the 17th and 18th Century Northern Wars on Kazuń Village (Poland) and its surrounding area
(Elsevier, 2024) Związek, Tomasz; Obremska, Milena; Targowski, Michał; Sobechowicz, Łukasz; Siwek, Wojciech Aleksander; Gąsiorowski, Michał; Theuerkauf, Martin; Kozłowska-Szyc, Monika; Guzowski, Piotr; Poniat, Radosław; Mulczyk, Anna; Szewczyk, Krzysztof; Panecki, Tomasz; Solon, Jerzy; Zachara-Związek, Urszula; Słowiński, Michał; Institute of Geography and Spatial Organization, Polish Academy of Science; Institute of Geological Sciences, Polish Academy of Sciences; Faculty of History, Nicolaus Copernicus University in Toruń, Toruń, Poland; Centre for Climate Change Research, Nicolaus Copernicus University in Toruń, Toruń, Poland; Institute of Geography and Spatial Organization, Polish Academy of Sciences; Faculty of History, University of Warsaw; Leuphana University Lüneburg; University of Białystok; Tadeusz Manteuffel Institute of History, Polish Academy of Sciences; John Paul II Catholic University of Lublin
The wars that ravaged the Polish–Lithuanian Commonwealth in the 17th century were among the most destructive events in the history of that part of Europe at the time. It is said that from this point on, the Polish–Lithuanian Commonwealth transitioned from a subject to an object state. Through interdisciplinary research involving the analysis of written, cartographic, and paleoecological data, we aim to demonstrate how the exit from this major crisis looked over a nearly 150-year perspective. In this article, we present observations describing economic, social, and demographic transformations, while also focusing on landscape and ecological issues. By analyzing the surroundings of the village of Kazuń (located today in central Poland), we highlight the emergence of a new type of settlement (the so-called olędrzy) in river valleys, which in the 18th century became an important element of a new wave of settlement and restoration.

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