Results 101 to 110 of about 8,987 (212)

Achievement of Transition Metal Chalcogenides/Oxides in Hydrogen Production by Seawater Electrolysis

EcoEnergy, EarlyView.
Transition metal chalcogenides (TMCs)/oxides have shown great application potential in seawater splitting for hydrogen generation due to their adjustable electronic properties, abundant active sites, and excellent catalytic performance. ABSTRACT Under the impetus of global “dual carbon” goals, green hydrogen has become a key component of the future ...
Xiaohui Du, Xinyu Li, Jianna Li, Tao Sun
wiley   +1 more source

Coupling between 2-pyridylselenyl chloride and phenylselenocyanate: synthesis, crystal structure and non-covalent interactions

Acta Crystallographica Section E: Crystallographic Communications
A new pyridine-fused selenodiazolium salt, 3-(phenylselanyl)[1,2,4]selenadiazolo[4,5-a]pyridin-4-ylium chloride dichloromethane 0.352-solvate, C12H9N2Se2+·Cl−·0.352CH2Cl2, was obtained from the reaction between 2-pyridylselenenyl chloride and ...
Ayalew W. Temesgen, Alexander G. Tskhovrebov, Alexey A. Artemjev, Alexey S. Kubasov, Alexander S. Novikov, Alexander V. Borisov, Anatoly A. Kirichuk, Andreii S. Kritchenkov, Tuan Anh Le   +8 more
doaj   +1 more source

Microscopic Mechanism of the Helix-to-Layer Transformation in Elemental Group VI Solids

, 2018
We study the conversion of bulk Se and Te, consisting of intertwined a helices, to structurally very dissimilar, atomically thin two-dimensional (2D) layers of these elements. Our ab initio calculations reveal that previously unknown and unusually stable
Lin, Xianqing, Liu, Dan, Tomanek, David
core   +5 more sources

Room Temperature Wafer‐Scale Synthesis of Highly Transparent and Conductive p‐Type Sulfur‐Doped Copper Iodide

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Wafer‐scale, room temperature synthesis of S‐doped CuI achieves high‐performance transparent p‐type electrodes. Pre‐doping enables precise control of crystallinity and hole density, yielding 86% transmittance and 75 Ω sq−1 sheet resistance. A record‐high figure of merit of 95 000 MΩ−1 and excellent flexibility across diverse substrates are demonstrated.
Sungsan Kang, Taehun Kim, Min Jung, Jinhyeok Pyo, Sohyeon Park, Seonyou Park, Junsung Byeon, Hui Gu Lee, Jin Pyo Hong, Sung‐Tae Lee, Minseok Kim, Hyoungsoon Lee, SeungNam Cha, Sangyeon Pak   +13 more
wiley   +1 more source

Electronic structure and the glass transition in pnictide and chalcogenide semiconductor alloys. Part I: The formation of the $pp\sigma$-network

, 2010
Semiconductor glasses exhibit many unique optical and electronic anomalies. We have put forth a semi-phenomenological scenario (J. Chem. Phys. 132, 044508 (2010)) in which several of these anomalies arise from deep midgap electronic states residing on ...
Albright T. A., Andriy Zhugayevych, Armstrong D. R., Baxter R. J., Braekken H., Burdett J. K., Elliott S. R., Feltz A., Harrison W. A., Madelung O., Mott N. F., Murrell J. N., Pearson W. B., Popescu M. A., Vassiliy Lubchenko, Wyckoff R. W. G.   +15 more
core   +1 more source

Intramolecular Matere Bonds in Isostructural Rubidium (18‐Crown‐6) Pertechnetate and Perrhenate Dimers

European Journal of Inorganic Chemistry, EarlyView.
Two rubidium cations that are not fully encapsulated by 18‐crown‐6 are bridged by two pertechnetate units to form a dimer. These two pertechnetate units are nearly linearly aligned to each other to form Matere bonds (MaBs), a type of noncovalent σ‐hole interaction.
Clarence Yong, Sergi Burguera, Dennis Grödler, Christoph Lenting, Hakim Ibrahim, Mathias S. Wickleder, Antonio Frontera, Erik Strub   +7 more
wiley   +1 more source

Different intermolecular interactions in solvated and unsolvated isatin-based dithiocarbazate imine derivatives

Acta Crystallographica Section E: Crystallographic Communications
The syntheses and structures of 2-fluorobenzyl (Z)-2-(2-oxoindolin-3-ylidene)hydrazine-1-carbodithioate dimethyl sulfoxide monosolvate, C16H12FN3OS2·C2H6OS (1) and 2-fluorobenzyl (Z)-2-(5-bromo-2-oxoindolin-3-ylidene)hydrazine-1-carbodithioate ...
Aidan P. McKay, David B. Cordes, Mohd Abdul Fatah Abdul Manan   +2 more
doaj   +1 more source

Thiosulfoxide (Sulfane) Sulfur: New Chemistry and New Regulatory Roles in Biology

Molecules, 2014
The understanding of sulfur bonding is undergoing change. Old theories on hypervalency of sulfur and the nature of the chalcogen-chalcogen bond are now questioned.
John I. Toohey, Arthur J. L. Cooper
doaj   +1 more source

Theoretical Investigations on Heteronuclear Chalcogen−Chalcogen Interactions:  On the Nature of Weak Bonds between Chalcogen Centers

Inorganic Chemistry, 2007
To understand the intermolecular interactions between chalcogen centers (O, S, Se, Te), quantum chemical calculations on model systems were carried out. These model systems were pairs of monomers of the composition (CH3)2X1 (X1 = O, S, Se, Te) as the donors and CH3X2Z (with X2 = O, S, Se, Te and Z = Me, CN) as the acceptors.
Bleiholder, Christian, Gleiter, Rolf, Werz, Daniel B., Koeppel, Horst   +3 more
openaire   +3 more sources

Phosphoryl Halogen and Hydrogen Bonding Controls the Solid‐State Structures of Aryl Halide‐Containing Phosphonates

European Journal of Inorganic Chemistry, EarlyView.
Intramolecular (RO)2PO→Halogen interaction versus intermolecular (RO)2PO···HOH hydrogen bonds. Although the O···I distance is shorter than the sum of the van der Waals radii of the atoms involved, there is no covalency involved in this interaction.
David Mross, Paweł Horeglad, Bastian Grabe, Wolf Hiller, Vito Lippolis, Massimiliano Arca, Klaus Jurkschat   +6 more
wiley   +1 more source