CAS: 13709-52-9; Hafnium Fluoride

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CAS号60816-55-9 hafnium tetrafl... | CAS号87118-39-6 | CAS号13499-05-3 四氯化铪 | CAS号7782-41-4 氟

📜以 Neat (No Solvent) 用作溶剂,化学反应生成四氟化铪
参考文献:Synthese Und Kristallstruktur Der Fluorid-Ammoniakate Zr(Nh3)F4 Und Hf(Nh3)F4
标题:Synthese Und Kristallstruktur Der Fluorid-Ammoniakate Zr(Nh3)F4 Und Hf(Nh3)F4
摘要:Abstractfarblose,Leicht Spaltbare Einkristalle Von Zr(Nh3)F4 Und Hf(Nh3)F4 Ohne Ausgeprägten Habitus Erhält Man Durch Oxidation Von Zirconium‐ Bzw. Hafnium‐metallpulver Mit Nh4Hf2 (Molares Verhältnis 1:2) In Verschweißten Monelampullen Bei Reaktionstemperaturen Von 380-450oc. Die Beiden Ammoniakate Kristallisieren Isotyp In Der Triklinen Raumgruppe P1 (Nr. 2) Mit A = 601,4(1)/597,8(8) Pm [zr(Nh3)F4/hf(Nh3)F4],B = 802,8(2)/800,6(I2) Pm,C = 862,3(2)/860,8(8) Pm,α = 106,39(1)/106,19(10)°,β = 104,25(1)/104,51(9)°,γ = 106,83(1)/106,69(11)°,Z = 4. Es Liegen Zweifach Bekappte Trigonale Prismen [m(Nh3)F7] (M = Zr,Hf) Vor,Die über Gemeinsame Kanten Und Ecken Zu Gewellten Schichten Verknüpft Sind,Die Ihrerseits über Wasserstoffbrückenbindungen Zusammengehalten Werden.
Doi:10.1002/zaac.19976230114

专利信息

专利号:US-12163079-B2
优先权日:2019-08-12
标 题 :Synthesis of blue-emitting ZnSe1-xTex alloy nanocrystals with low full width at half-maximum
发明人：NEWMEYER BENJAMIN; IPPEN CHRISTIAN; MA RUIQING
权利人:SHOEI CHEMICAL IND CO
摘要:The invention pertains to the field of nanotechnology. The invention provides highly luminescent nanostructures, particularly highly luminescent nanostructures comprising a ZnSe 1-x Te x core and ZnS and/or ZnSe shell layers. The nanostructures comprising a ZnSe 1-x Te x core and ZnS and/or ZnSe shell layers display a low full width at half-maximum and a high quantum yield. The invention also provides methods of producing the nanostructures.

专利号:US-2023235224-A1
优先权日:2019-08-12
标 题 :SYNTHESIS OF BLUE-EMITTING ZnSe1-xTex ALLOY NANOCRYSTALS WITH LOW FULL WIDTH AT HALF-MAXIMUM

专利号:US-11499097-B2
优先权日:2019-08-12
标 题:Synthesis of blue-emitting ZnSe1-xTex alloy nanocrystals with low full width at half-maximum

专利号:US-2025059441-A1
优先权日:2019-08-12
标题 :SYNTHESIS OF BLUE-EMITTING ZnSe1-xTex ALLOY NANOCRYSTALS WITH LOW FULL WIDTH AT HALF-MAXIMUM

专利号:US-2022033999-A1
优先权日:2014-08-18
标题:High-Strength Refractory Fibrous Materials
发明人：MAXWELL JAMES L; WEBB NICHOLAS; HOOPER RYAN; ALLEN JAMES
权利人:DYNETICS
摘要:The disclosed materials, methods, and apparatus, provide novel ultra-high temperature materials (UHTM) in fibrous forms/structures; such “fibrous materialsâ€? can take various forms, such as individual filaments, short-shaped fiber, tows, ropes, wools, textiles, lattices, nano/microstructures, mesostructured materials, and sponge-like materials. At least four important classes of UHTM materials are disclosed in this invention: (1) carbon, doped-carbon and carbon alloy materials, (2) materials within the boron-carbon-nitride-X system, (3) materials within the silicon-carbon-nitride-X system, and (4) highly-refractory materials within the tantalum-hafnium-carbon-nitride-X and tantalum-hafnium-carbon-boron-nitride-X system. All of these material classes offer compounds/mixtures that melt or sublime at temperatures above 1800° C.—and in some cases are among the highest melting point materials known (exceeding 3000° C.). In many embodiments, the synthesis/fabrication is from gaseous, solid, semi-solid, liquid, critical, and supercritical precursor mixtures using one or more low molar mass precursor(s), in combination with one or more high molar mass precursor(s). Methods for controlling the growth, composition, and structures of UHTM materials through control of the thermal diffusion regio are disclosed.