Results 11 to 20 of about 15,379 (96)

Nature of Beryllium, Magnesium, and Zinc Bonds in Carbene⋯MX2 (M = Be, Mg, Zn; X = H, Br) Dimers Revealed by the IQA, ETS-NOCV and LED Methods [PDF]

, 2022
The nature of beryllium–, magnesium– and zinc–carbene bonds in the cyclopropenylidene⋯MX2 (M = Be, Mg, Zn; X = H, Br) and imidazol-2-ylidene⋯MBr2 dimers is investigated by the joint use of the topological QTAIM-based IQA ...
Filip Sagan, Mariusz Mitoraj, Sagan, Filip, Mitoraj, Mariusz, Mirosław Jabłoński, Jabłoński, Mirosław   +5 more
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Type I–IV Halogen⋯Halogen Interactions: A Comparative Theoretical Study in Halobenzene⋯Halobenzene Homodimers

, 2022
In the current study, unexplored type IV halogen⋯halogen interaction was thoroughly elucidated, for the first time, and compared to the well-established types I–III interactions by means of the second-order Møller–Plesset (MP2 ...
Muhammad Naeem Ahmed, Mahmoud A. A. Ibrahim, Eslam B. Elkaeed, Mohammed N. I. Shehata, Mahmoud E. S. Soliman, Nayra A. M. Moussa, Manal M. Khowdiary, Rehab R. A. Saeed, Ahmed M. Shawky   +8 more
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B H amp; 8943;pi and C H amp; 8943;pi interactions in protein ligand complexes carbonic anhydrase II inhibition by carborane sulfonamides

, 2023
Among non covalent interactions, B H amp; 8943; amp; 960; and C H amp; 8943; amp; 960; hydrogen bonding is rather weak and less studied. Nevertheless, since both can affect the energetics of protein ligand binding, their understanding is an important ...
Lepsik, M., Hnyk, D., Posp silov , K., Fanfrl k, J., Kugler, M., Holub, J., Grüner, B., Rez cov , P., Nekvinda, J., Brynda, J.   +9 more
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Three for the Price of One: Concomitant I⋯N, I⋯O, and I⋯π Halogen Bonds in the Same Crystal Structure

, 2022
The ditopic molecule 3-(1,3,5-trimethyl-1H-4-pyrazolyl)pentane-2,4-dione (HacacMePz) combines two different Lewis basic sites. It forms a crystalline adduct with the popular halogen bond (XB) donor 2,3,5,6-tetrafluoro-1,4-diiodobenzene (TFDIB) with a ...
van Terwingen, Steven, Ruimin Wang, Ulli Englert, Steven van Terwingen, Wang, Ruimin, Englert, Ulli   +5 more
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Robust Supramolecular Dimers Derived from Benzylic-Substituted 1,2,4-Selenodiazolium Salts Featuring Selenium⋯π Chalcogen Bonding

, 2022
The series of benzylic-substituted 1,2,4-selenodiazolium salts were prepared via cyclization reaction between 2-pyridylselenyl chlorides and nitriles and fully characterized.
Tskhovrebov, Alexander G., Alexander A. Sapronov, Gleb M. Burkin, Alexey A. Artemjev, Khrustalev, Victor N., Rosa M. Gomila, Gomila, Rosa M., Alexey S. Kubasov, Artemjev, Alexey A., Kritchenkov, Andreii S., Alexander G. Tskhovrebov, Frontera, Antonio, Nenajdenko, Valentine G., Kubasov, Alexey S., Antonio Frontera, Valentine G. Nenajdenko, Burkin, Gleb M., Victor N. Khrustalev, Andreii S. Kritchenkov, Sapronov, Alexander A.   +19 more
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Structural Characterization of Multicomponent Crystals Formed from Diclofenac and Acridines

, 2022
Multicomponent crystals containing diclofenac and acridine (1) and diclofenac and 6,9-diamino-2-ethoxyacridine (2) were synthesized and structurally characterized. The single-crystal XRD measurements showed that compound 1 crystallizes in the triclinic P-
Artur Mirocki, Artur Sikorski
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Carlitz’s Equations on Generalized Fibonacci Numbers

, 2022
Carlitz solved some Diophantine equations on Fibonacci or Lucas numbers. We extend his results to the sequence of generalized Fibonacci and Lucas numbers.
Peng Yang, Min Wang, Yining Yang
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MST, imprensa e governo Lula: aliança e/ou enfrentamentos?

Revista Pegada Eletrônica, 2011
O jornalismo que desde manhã nos acompanha diz à sua maneira o que aconteceu, o que deixou de acontecer. Poucas vezes nos damos conta que a leitura do jornal é a leitura de uma leitura.
Sônia Maria Ribeiro de Souza
doaj   +1 more source

The Limits of Atlantic Revolution: Indigenous Power, Spectres of Saint-Domingue, and the Maracaibo Conspiracy of 1799

Revista Mundos do Trabalho, 2022
In the Maracaibo of 1799, Spanish authorities claimed to have uncovered a revolutionary plot to overthrow the Spanish monarchy and install a republic modeled on Saint-Domingue.
Forrest Hylton, Miguel Durango-Loaiza
doaj   +1 more source

How the Position of Substitution Affects Intermolecular Bonding in Halogen Derivatives of Carboranes: Crystal Structures of 1,2,3- and 8,9,12-Triiodo- and 8,9,12-Tribromo ortho-Carboranes

, 2023
The crystal structures of two isomeric triiodo derivatives of ortho-carborane containing substituents in the three most electron-withdrawing positions of the carborane cage, 1,2,3-I3-1,2-C2B10H9, and the three most electron-donating positions, 8,9,12-I3 ...
Suponitsky, Kyrill Yu., Sergey A. Anufriev, Igor B. Sivaev, Sivaev, Igor B., Kyrill Yu. Suponitsky, Anufriev, Sergey A.   +5 more
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