Results 231 to 240 of about 1,636,202 (292)

Surface wear and roughness of experimental composites containing calcium orthophosphate particles following toothbrush abrasion. [PDF]

Eur J Oral Sci
Vilela HS, Resende MCA, Sakae LO, Campos AL, Scaramucci T, Braga RR.   +5 more
europepmc   +1 more source

Simple s-block metal hydrides for selective hydrogenation of quinoline compounds. [PDF]

Chem Sci
Zhang S, Wen H, Wang Q, Cai Y, Li Z, Liu L, Chang X, Guo J, Chen P.   +8 more
europepmc   +1 more source

High-speed non-volatile barium titanate field-programmable photonic gate array. [PDF]

Nat Photonics
Catalá-Lahoz C, Rausell-Campo JR, Pérez-López D, Güniat L, Convertino C, Eltes F, Fompeyrine J, Mesaritakis C, Bogris A, Wilmart Q, Faugier-Tovar J, Charbonnier B, Capmany J.   +12 more
europepmc   +1 more source

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Thermochemistry of some barium compounds

Journal of Chemical Thermodynamics, 2002
Abstract The molar enthalpies of reaction of metallic barium with 0.047 mol·dm−3 HClO4 as well as the molar enthalpies of dissolution of BaCl2 in 1.01 mol·dm−3 HCl and in water have been measured at T=298.15 K in a sealed swinging calorimeter with an isothermal jacket.
A.S. Monayenkova, A.F. Vorob’ev, A.A. Popova, L.A. Tiphlova   +3 more
exaly   +2 more sources

Selective Propargylation of Azo Compounds with Barium Reagents

Synlett, 2010
A Barbier-type propargylation of azo compounds with γ-trialkylsilylated propargylic bromides has been achieved using reactive barium as a low-valent metal in THF. Corresponding propargylated hydrazines (α-adducts) were exclusively formed not only from azobenzenes (diaryldiazenes) but also from dialkyl azodicarboxylates.
Kazuhiro Yoshida
exaly   +2 more sources

Selective Propargylation of Carbonyl Compounds and Imines with Barium Reagents

Chemistry - an Asian Journal, 2008
AbstractA Barbier‐type regioselective propargylation of aldehydes and ketones with (3‐bromobut‐1‐ynyl)trimethylsilane has been achieved using reactive barium as a low‐valent metal in THF. Especially in the case of ketones, the corresponding homopropargylic alcohols form almost exclusively. In the reaction of α,β‐unsaturated carbonyl compounds, only 1,2‐
Takayoshi Arai, Akira Yanagisawa
exaly   +3 more sources

Barium Compounds

ChemInform, 2005
AbstractFor Abstract see ChemInform Abstract in Full Text.
openaire   +1 more source

Stable barium compounds in YBa2Cu3Oy superconductors

Physica C: Superconductivity and its Applications, 2011
Abstract The stability of various amounts of Ba3Cu3In4O12 (334) or BaTbO3 (BTO) in a sintered YBa2Cu3Oy (YBCO) matrix was examined. Samples with added 334 or BTO exhibited critical temperatures (Tc) above 90 K for up to 20 vol.% addition and improved critical current densities (Jc) under a magnetic field.
R. Kita, K. Suzuki, T. Takeuchi, T. Iwasa, O. Miura, Y. Ichino, T. Yoshimura, Y. Yoshida, K. Yamada, K. Kaneko, A. Ichinose   +10 more
openaire   +1 more source

Synthesis, characterization and molecular structures of barium(II) trichloroacetate DME/1,4-dioxane compounds

Polyhedron, 2012
Two new barium(II) trichloroacetate compounds, [Ba(H2O)(DME)(μ-O2CCCl3)2]n (1) and [{Ba(H2O)2(diox)0.5(μ-O2CCCl3)2}(diox)]n (2) were synthesized and characterized by elemental analyses, physiochemical studies, FT-IR, 1H NMR, thermogravimetric analyses ...
Valeria Ferretti, Ravneet Kaur, Sukhjinder Singh   +2 more
exaly   +2 more sources