Results 151 to 160 of about 6,031 (213)

Synthesis and One‐Electron Reduction of Donor‐Acceptor‐Stabilized SiII–EII–SiII Trimetallylenes (E = Ge, Sn, Pb)

Angewandte Chemie, EarlyView.
The first isolable trimetallylenes (SiII)2EII (E = Ge, Sn, Pb) with pπ‐type silanylidenyl donors have been synthesized, having donor–acceptor electronic structures that give rise to near‐infrared absorption and enable access to bis(silanylidenyl)‐supported GeI and SnI radical anions upon one‐electron reduction with elemental potassium. ABSTRACT Herein,
Chaopeng Hu, Shenglai Yao, Christian Lorent, Matthias Driess   +3 more
wiley   +1 more source

Unlocking Zn‐Ion Diffusion in Disordered Rocksalt Cathodes for Nonaqueous Zn‐Ion Batteries

Angewandte Chemie, EarlyView.
Developing viable cathode materials for multivalent battery chemistries is challenging due to the intrinsic sluggish diffusion kinetics. A disordered rocksalt oxide host was found to “lock” the cycling of zinc ions from nonaqueous electrolyte. We unlock zinc ion diffusion in the disordered rocksalt by introduction of a percolating vacancy network ...
Zixuan Li, Rui Qi, Yee Chit Wong, Longlong Wang, Jun Chen, Yi Yuan, Reinhard J. Maurer, Robert A. House, Nicholas D. M. Hine, Peter G. Bruce, Alex W. Robertson   +10 more
wiley   +1 more source

Interaction Hierarchy and Polymorphic Structure–Property Dynamics in Luminescent Molecular Crystals

Angewandte Chemie, EarlyView.
Competing homotypic and heterotypic intermolecular interactions give rise to polymorphic structure–property dynamics in luminescent molecular crystals. Thermal and mechanical stimuli induce distinct phase‐transition pathways accompanied by pronounced photoluminescence changes.
Mahiro Nakabayashi, Shotaro Hayashi
wiley   +1 more source

Taming a Blue Gas—Structure and Chemistry of Hexafluorothioacetone

Angewandte Chemie International Edition, EarlyView.
Hexafluorothioacetone (1), a blue gas at r.t., was synthesized by flash vacuum pyrolysis of its cyclic dimer at 660°C. We discuss fundamental properties of elusive 1, including single‐crystal structure and nuclear magnetic resonance spectroscopy, despite its tendency to dimerize even at –74°C.
Hennes Günther, Antti J. Karttunen, Xiulan Xie, Frank Tambornino   +3 more
wiley   +1 more source

Zero‐Valent Nickel Stabilized in Surface‐Supported Metal–Organic Chains

Angewandte Chemie International Edition, EarlyView.
9,10‐Dicyanoanthracene coordinates Ni atoms on Ag(100) to form metal–organic chains that stabilize zero‐valent Ni(0) (d10) centers with quasi‐one‐dimensional metal–ligand electronic coupling. ABSTRACT The stabilization of zero‐valent nickel Ni(0) centers in extended coordination networks remains a major challenge due to their pronounced reactivity and ...
Simone Mearini, Dominik Brandstetter, Mira S. Arndt, Olga Resel, Daniel Baranowski, Yan Yan Grisan Qiu, Peter Puschnig, Martin Sterrer, Giovanni Zamborlini, Vitaliy Feyer, Claus M. Schneider   +10 more
wiley   +1 more source

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Monoclinic Hydroxyapatite

Science, 1973
The existence of a monoclinic phase of hydroxyapatite, Ca 5 (PO 4 ) 3 OH, has been confirmed, by single-crystal structure analysis (weighted "reliability" factor = 3.9 percent on |F| 2 ). The structure has space group P 2
J C, Elliott, P E, Mackie, R A, Young
openaire   +2 more sources

Monoclinic Thorium Silicate

Nature, 1950
THE name ‘huttonite’ is proposed for a newly recognized monoclinic mineral of the composition ThSiO4. It has been isolated in minute grains from beach sand of South Westland, New Zealand, by Prof. C. Osborne Hutton, of Stanford University. Its optical properties are: α= 1.898, β= 1.900, γ = 1.922; dispersion ρ > γ, moderate; 2V = 25° (measured); Y || b,
openaire   +2 more sources

Crystal Structure of Monoclinic Hafnia and Comparison with Monoclinic Zirconia

Journal of the American Ceramic Society, 1970
The crystal structure of monoclinic HfO 2 was determined using Weissenberg techniques. Data were obtained from a needlelike single crystal which was grown from a lithium molybdate melt. The crystal was rotated about the α axis, and reflection data were obtained for nine levels.
ROBERT RUH, PETER W. R. CORFIELD
openaire   +1 more source

The intermediate monoclinic phase of phosphatidylcholines

Biochimica et Biophysica Acta (BBA) - Biomembranes, 1977
Two pure phospholipids, dimyristoyl phosphatidylcholine and dipalmitoyl phosphatidylcholine, have been studied using freeze-fracture electron microscopy and the partitioning of the spin label, TEMPO. It is found that the characteristic band pattern, corresponding to monoclinic symmetry in multilamellar liposomes, is observed only in freeze-fracture ...
Luna, Elizabeth J., McConnell, Harden M.
openaire   +3 more sources

Superhard Monoclinic Polymorph of Carbon

Physical Review Letters, 2009
We report a novel phase of carbon possessing a monoclinic C2/m structure (8 atoms/cell) identified using an ab initio evolutionary structural search. This polymorph, which we call M-carbon, is related to the (2x1) reconstruction of the (111) surface of diamond and can also be viewed as a distorted (through sliding and buckling of the sheets) form of ...
Quan, Li, Yanming, Ma, Artem R, Oganov, Hongbo, Wang, Hui, Wang, Ying, Xu, Tian, Cui, Ho-Kwang, Mao, Guangtian, Zou   +8 more
openaire   +2 more sources