Results 81 to 90 of about 241,773 (303)

Near‐Infrared Emitting Lanthanide Catecholate Giant Single Crystals – Morphology Control and Photon Down‐Conversion

Advanced Functional Materials, EarlyView.
Controlled syntheses of lanthanide coordination polymers based on the dihydroxybenzoquinone (DHBQ) organic linker afforded large single crystals of Ln‐DHBQ CPs (Ln = Yb, Nd). A novel structural variant of Yb‐DHBQ is identified by means of single crystal diffraction analysis.
Marina I. Schönherr, Alexander Biewald, Andre Mähringer, Thaddäus J. Koller, Peter Mayer, Markus Döblinger, Achim Hartschuh, Dana D. Medina   +7 more
wiley   +1 more source

The Common Envelope Evolution Outcome. II. Short-orbital-period Hot Subdwarf B Binaries Reveal a Clear Picture

The Astrophysical Journal
Common envelope evolution (CEE) is vital for forming short-orbital-period compact binaries. It covers many objects, such as double compact merging binaries, Type Ia supernovae progenitors, binary pulsars, and X-ray binaries.
Hongwei Ge, Christopher A Tout, Ronald F Webbink, Xuefei Chen, Arnab Sarkar, Jiao Li, Zhenwei Li, Lifu Zhang, Zhanwen Han   +8 more
doaj   +1 more source

A double-lined spectroscopic orbit for the young star HD 34700 [PDF]

, 2003
We report high-resolution spectroscopic observations of the young star HD 34700, which confirm it to be a double-lined spectroscopic binary. We derive an accurate orbital solution with a period of 23.4877 +/- 0.0013 days and an eccentricity of e = 0.2501
Alcala J. M., Arellano Ferro A., Bhatt H. C., Corporon P., Duquennoy A., Guillermo Torres, Hog E., Hut P., Kohler R., Leinert C., Neuhauser R., Nordstrom B., Oudmaijer R. D., Siess L., Siess L., Sylvester R. J., Sylvester R. J., van den Ancker M. E., Voges W., Wichmann R.   +19 more
core   +2 more sources

Modulating Electrochemical CO2 Reduction Pathways via Interfacial Electric Field

Advanced Functional Materials, EarlyView.
Engineering interfacial electric fields in Cu/ITO electrodes enables precise control of CO2 reduction pathways. Charge transfer from Cu to ITO generates positively charged Cu species that steer selectivity from ethylene toward methane. This work demonstrates how interfacial electric‐field modulation can direct reaction intermediates and transform ...
Mahdi Salehi, Zhengyuan Gao, Sai Phani Kumar Vangala, Amirhossein Farzi, Hamed Heidarpour, Morgan McKee, Nikolay Kornienko, Ali Seifitokaldani   +7 more
wiley   +1 more source

Theoretical Study on the Interaction of o-Tetrafluorophenylene Mercury with Ethylene and Acetylene

Molecules, 2003
The results of a theoretical study on the interaction of o-tetrafluorophenylene mercury with ethylene and acetylene are reported. The AM1 molecular orbital semiempirical method is applied through a complete optimization procedure without any restrictions
Eduardo A. Castro
doaj   +1 more source

Discovery of Par 1802 as a Low-Mass, Pre-Main-Sequence Eclipsing Binary in the Orion Star-Forming Region

, 2008
We report the discovery of a pre-main-sequence, low-mass, double-lined, spectroscopic, eclipsing binary in the Orion star-forming region. We present our observations including radial velocities derived from optical high-resolution spectroscopy, and ...
D'Antona F., K. G. Stassun, Latham D. W., P. A. Cargile, Parenago P. P., R. D. Mathieu   +5 more
core   +1 more source

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

Advanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein, Tiago Carneiro Gomes, Eliza Ng, Simon Rondeau‐Gagné, Tricia Breen Carmichael   +4 more
wiley   +1 more source

An ab initio study of the mechanism of the cycloaddition reaction forming bicyclic compounds between vinylidene (H2C=C:) and ethylene [PDF]

Journal of the Serbian Chemical Society, 2011
The mechanism of the cycloaddition reaction forming a bicyclic compounds between singlet vinylidene (H2C=C:) and ethylene was investigated using the CCSD(T)//MP2/6-31G* method. From the potential energy profile, it can be predicted that this reaction has
YONGQING LI, ZHENXIA LIAN, XIUHUI LU
doaj  

Orbital formal normal forms for general Bogdanov–Takens singularity

Journal of Differential Equations, 2003
The authors solve completely the problem of classification of germs of complex vector fields with nilpotent singularity with respect to formal orbital equivalence.
Stróżyna, Ewa, Żołądek, Henryk
openaire   +2 more sources

Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76)

Advanced Functional Materials, EarlyView.
Luminescent MOF‐76 materials based on Eu(III) and mixed Eu(III)/Y(III) show rapid and reversible changes in emission intensity in response to O2 with very short response times. The effect is based on triplet quenching of the linker ligands that act as photosensitizers. Average emission lifetimes of a few milliseconds turn out to be mostly unaffected by
Zhenyu Zhao, Christian Weinberger, Jakob Steube, Matthias Bauer, Martin Brehm, Michael Tiemann   +5 more
wiley   +1 more source