Article
Chemistry, Multidisciplinary
Phuong M. Tran, Yuzhong Wang, Mitchell E. Lahm, Pingrong Wei, Christopher J. Molnar, Henry F. Schaefer, Gregory H. Robinson
Summary: This article reports a series of Lewis base-coordinated germanium(II) dithiolene complexes and investigates their chemical properties, particularly the reactions between germylene and dithiolene, through experimental and theoretical methods.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Ryoma Ohno, Yasuyuki Numata, Shigeaki Konaka, Shogo Yagura, Airi Kuroda, Mao Harada, Naoko Fujita, Naoki Hayakawa, Hidetaka Nakai, Alfredo Rosas-Sanchez, Daisuke Hashizume, Tsukasa Matsuo
Summary: A series of diarylgermylenes with different fused-ring bulky groups have been synthesized and investigated for their crystal structures and electronic properties, including dimeric and monomeric forms in solution.
BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN
(2021)
Article
Chemistry, Multidisciplinary
Roman Bashkurov, Alexander Kaushansky, Boris Tumanskii, Natalia Fridman, Dmitry Bravo-Zhivotovskii, Yitzhak Apeloig
Summary: Thermolysis of a 1:1 mixture of tris(di-tert-butylmethylsilyl)germane 9 and bis(di-tert-butylmethylsilyl)germane 17 at 100°C produces unexpectedly octagermacubane 18, with two 3-coordinate Ge-O atoms (40% yield). The structure of 18 was determined by X-ray crystallography, and it was identified as a singlet biradical based on DFT quantum mechanical calculations and the absence of an EPR signal. Reactions of 18 with CH2Cl2 and H2O yield the novel dichloro-octagermacubane 24 and hydroxy-octagermacubane 25, respectively. Reduction of 18 with tBuMe(2)SiNa in THF produces an isolable octagermacubane radical anion 26-Na. Based on X-ray crystallography, EPR spectroscopy, and DFT quantum mechanical calculations, 26-Na is classified as a Ge-centered radical anion.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Joydeb Goura, James McQuade, Daisuke Shimoyama, Roger A. Lalancette, John B. Sheridan, Frieder Jakle
Summary: This study demonstrates new reactivity patterns at the bridgehead positions of a ruthenium tris(pyrid-2-yl)borate complex, allowing for easy tuning of its steric and electronic properties.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Organic
Hong Pu, Ting Jiang, Dian Peng, Juanjuan Xia, Juan Gao, Yeji Wang, Xiaohui Yan, Xueshuang Huang, Yanwen Duan, Yong Huang
Summary: The structures of three siderophores mirubactins B-D (4-6) were identified and their unusual cyclic amidine functionality in compound 4 was revealed. Furthermore, the study discovered that mirubactin (1) and Fe(III) can form a stable complex, suggesting a clever approach for competing for iron acquisition.
ORGANIC & BIOMOLECULAR CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Sanjukta Pahar, Vishal Sharma, Srinu Tothadi, Sakya S. Sen
Summary: This study reports the synthesis of a new chlorogermylene and the preparation of a series of new germylenes and stannylenes starting from it. The transmetallation reaction between the chlorogermylene and SnCl2 resulted in the formation of a chlorostannylene, showing an unusual example of transmetallation between elements of the same group. The compounds were further characterized by single-crystal X-ray diffraction and spectroscopic studies.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Inorganic & Nuclear
Nicolas Lentz, Alexandre Sodreau, Alejandra Acuna, Sonia Mallet-Ladeira, Eddy Maerten, Jean-Marc Sotiropoulos, Rene Segundo Rojas Guerrero, David Madec
Summary: An unusual series of germylenes and stannylenes with homoleptic symmetric and unsymmetric N-substituted sulfonimidamide ligands have been prepared and characterized. The electronic properties brought by the sulfonimidamide ligand were analyzed using DFT calculations.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Multidisciplinary
Christoph Wallach, Felix S. Geitner, Antti J. Karttunen, Thomas F. Faessler
Summary: The unique three-dimensional structure of spherical, homoatomic nine-atom germanium clusters allows for various spatial arrangement of functional groups. Recent introduction of ligands with lone pairs and addition of boranyl group to the cluster featuring a Ge-B exo-cluster bond have expanded the possibilities in cluster chemistry. Quantum-chemical calculations have revealed the frustrated Lewis pair character of the boranyl-functionalized cluster.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Evgeny G. Rys, Victoria M. Alpatova, Elena G. Kononova, Alexander F. Smol'yakov, Sergey K. Moiseev, Valentina A. Ol'shevskaya
Summary: A high yielding method for the synthesis of polyfunctionally-substituted carboranes was achieved using Triton-B as a catalyst in the Michael addition reaction. This method offers mild conditions, simple procedures and high yields, resulting in a series of functionalized carborane compounds.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
David Hernandez-Castillo, Roland E. P. Nau, Marie-Ann Schmid, Stefanie Tschierlei, Sven Rau, Leticia Gonzalez
Summary: Understanding the factors that determine the luminescence lifetime of transition metal compounds is crucial for applications in photocatalysis and photodynamic therapy. This study challenges the commonly accepted idea that emission lifetimes can be controlled by optimizing the energy barrier or gap between different excited states. Instead, an extended kinetic model that considers all the pathways related to multiple isomers is found to accurately predict temperature-dependent emission lifetimes.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Multidisciplinary Sciences
Jan Vrana, Josef Holub, Maksim A. Samsonov, Zdenka Ruzickova, Josef Cvacka, Michael L. McKee, Jindrich Fanfrlik, Drahomir Hnyk, Ales Ruzicka
Summary: In contrast to the prevalence of neutral or anionic species, the authors have developed a method to prepare water-soluble cationic polyhedral boranes by reacting closo-10-vertex carboranes with N-heterocyclic carbenes. These cationic boron clusters may have potential for novel applications.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Inorganic & Nuclear
Dominik Vitek, Libor Dostal, Ales Ruzicka, Tomas Mikysek, Roman Jambor
Summary: Synthesis of monomeric Cu complexes stabilized by N to Ge coordinated germylene L(Cl)Ge has been achieved. Different reactions pathways can lead to the formation of diverse dual-core Cu complexes, exhibiting strong stability and unique configurations.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Yu Zhang, Toby Woods, Thomas B. Rauchfuss
Summary: This study found that elemental chalcogens react with [Fe-(CN)(2)(CO)(3)](2-) to form ferrous derivatives, and these derivatives isomerize in solution.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Yu Zhang, Toby Woods, Thomas B. Rauchfuss
Summary: The reaction of elemental chalcogens with [Fe(CN)(2)(CO)(3)](2-) leads to ferrous derivatives that isomerize in solution upon irradiation.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Chen-Xi Ye, Xiang Shen, Shuming Chen, Eric Meggers
Summary: In this study, a protocol for the synthesis of α-amino acids was reported, which is based on a stereocontrolled 1,3-nitrogen shift. This method uses abundant and easily accessible carboxylic acids as starting materials and a regio- and enantioselective ruthenium- or iron-catalysed C(sp(3))-H amination. It provides a rapid access to optically active α-amino acids with various side chains.
