Cases Center

    High-pressure behavior of phosphorus from first

    High-pressure structural behavior, electronic structure, and vibrational properties of P have been investigated by means of first principles calculations.get price

    High pressure chemistry of red phosphorus by photo

    High pressure (HP) is very effective in reducing intermolecular distances and inducing unexpected chemical reactions. In addition the photo-activation of the reactants in HP conditions can lead to very efficient and selective processes.get price

    Phosphorus and hydrogen at high pressure: the

    2020-12-9  Phosphorus and hydrogen at high pressure: the synthesis of phosphine from the elements and the discovery of the missing (PH3)2H2 tile. The periodic table of get price

    Resistivity of high pressure phosphorus phases

    Simple cubic (sc) black phosphorus (denoted BP), stable at P>10GPa, seems an ordinary metal. It has electron-phonon-driven superconductivity with Tc 5-10 K. The A17 phase, stable at atmospheric pressure, has a narrow gap, becomes semimetallic at P=1 GPa, and has a smooth transition to topological metal behavior at P ~ 5 GPa. The A7 phase, stable for 5<P<10 GPa, is metallicget price

    Interlayer Bond Formation in Black Phosphorus at

    The current renaissance 1 of black phosphorus (bP), first obtained under high pressure by Bridgman in 1914, 2 is intimately related to the recent synthesis of phosphorene, 3, 4 a 2D corrugated monoatomic layer of P, where each atom is single‐bonded to 3 nearest neighbors.get price

    Cited by: 15

    High-Pressure Polymorph of Phosphorus Nitride

    2019-5-26  A new polymorph of phosphorus nitride imide HP4N7 has been synthesized under high-pressure/high-temperature conditions from P3N5 and NH4Cl at 6 GPa and temperatures between 800 and 1300 °C.get price

    Cited by: 25

    Origin of incommensurate modulations in the high

    We present results from x-ray diffraction experiments and density functional theory calculations which provide a fully consistent picture of the high-pressure phosphorus-IV phase (P-IV). P-IV has an incommensurately-modulated crystal structure described by the get price

    Phosphorus Dimerization in Gallium Phosphide at

    2021-3-13  Phosphorus dimerization in GaP sheds light on the nature of the super- Cmcm phase and provides critical new insights into the high-pressure polymorphism of octet semiconductors. Bond directionality and anisotropy explain the relatively low symmetry of this high-pressure phase.get price

    Cited by: 3

    Pentacoordinate Phosphorus in a High‐Pressure

    In this contribution we report on the synthesis of the high‐pressure polymorph of highly co Pentacoordinate Phosphorus in a High‐Pressure Polymorph of Phosphorus Nitride Imide P4N6(NH) Baumann 2014 Angewandte Chemie Wiley Online Libraryget price

    Cited by: 22

    A High‐Pressure Polymorph of Phosphorus Oxonitride

    The chemical and physical properties of phosphorus oxonitride (PON) closely resemble those of silica, to which it is isosteric. A new high‐pressure phase of PON is reported herein. This polymorph, synthesized by using the multianvil technique, crystallizes in the coesite structure.get price

    Cited by: 9

    High pressure chemistry of red phosphorus by photo

    High pressure chemistry of red phosphorus by photo-activated simple molecules To cite this article: M Ceppatelli et al 2014 J. Phys.: Conf. Ser. 500 022008 View the article online for updates and enhancements. Related content Analysis of temperature measurements at lead(Pb) / transparent window interface under shock compressionget price

    High-pressure behavior of phosphorus from first

    High-pressure structural behavior, electronic structure, and vibrational properties of P have been investigated by means of first principles calculations. We perform an ab initio search for the P-IV phase by analyzing the phonon dispersions of the simple cubic (sc) structure as a function of pressure. In particular, we use the dynamical instability of the sc structure above the transition intoget price

    High pressure synthesis of phosphine from the

    2020-11-30  High pressure reactivity of phosphorus and hydrogen is relevant to fundamental chemistry, energy conversion and storage, and materials science. Here we report the synthesis of (PH3)2H2, aget price

    High-pressure behavior of Fe3P and the role of

    2014-3-15  We have investigated high-pressure behavior of Fe 3 P by first-principles calculations and synchrotron X-ray diffraction. Theoretical calculations reveal a magnetic collapse at 40–65 GPa, accompanied by a structural transition. The possible high-pressure polymorph is either a distorted cementite structure (Pnma) or a P4/mnc structure.get price

    High-pressure behavior of Fe3P and the role of

    Fe3P is a candidate component in planetary cores. We have investigated high-pressure behavior of Fe3P by first-principles calculations and synchrotron X-ray diffraction.get price

    High-Pressure Polymorph of Phosphorus Nitride

    2019-5-26  A High-Pressure Polymorph of Phosphorus Oxonitride with the Coesite Structure. Angewandte Chemie International Edition 2015, 54 (10.1002/anie.v54.14),4388-4391. DOI: 10.1002/anie.201410526. Dominik Baumann, Wolfgang Schnick. Pentacoordinate Phosphorus in a High-Pressure Polymorph of Phosphorus Nitride Imide P 4 N 6 (NH).get price

    Phosphorus Dimerization in Gallium Phosphide at

    2021-3-13  Phosphorus dimerization in GaP sheds light on the nature of the super-Cmcm phase and provides critical new insights into the high-pressure polymorphism of octet semiconductors. Bond directionality and anisotropy explain the relatively low symmetry of this high-pressure phase.get price

    A High‐Pressure Polymorph of Phosphorus Nitride

    Dominik Baumann and Wolfgang Schnick, High-Pressure Polymorph of Phosphorus Nitride Imide HP 4 N 7 Representing a New Framework Topology,Inorganic Chemistry, 10.1021/ic500767f, 53, get price

    Pressure-induced phase transitions and superconductivity

    2018-9-27  A high-pressure study of a black phosphorus crystal establishes a rich phase diagram, including Weyl semimetal and super-conducting states, Lifsh itz-type semiconductor–semimetal transi-tions, and two structural phase transitions. Transport properties and quantum oscillations under high pressure provide criticallyget price

    High Phosphate (Phosphorus): Causes, Effects & Ways

    2021-1-18  Phosphorus is the second most abundant mineral in the body, essential for energy, bone, heart, lung, and brain health. Imbalances may disrupt your metabolism and raise your risk of chronic diseases. Diet and income can have a huge impact, affecting the number of dangerous phosphate additives in your grocery basket. Learn more about the causes get price

    High pressure synthesis of phosphine from the

    2020-11-30  High pressure reactivity of phosphorus and hydrogen is relevant to fundamental chemistry, energy conversion and storage, and materials science. Here we report the synthesis of (PH3)2H2, aget price

    High-pressure behavior of phosphorus from first

    High-pressure structural behavior, electronic structure, and vibrational properties of P have been investigated by means of first principles calculations. We perform an ab initio search for the P-IV phase by analyzing the phonon dispersions of the simple cubic (sc) structure as a function of pressure. In particular, we use the dynamical instability of the sc structure above the transition intoget price

    Structure refinement of black phosphorus under high

    On the basis of our results, the significant discrepancy in the bond length reported by Cartz et al. [J. Chem. Phys. 71, 1718 (1979)] has been resolved. Our structural data will contribute to the elucidation of the Dirac semimetal state of black phosphorus under high pressure.get price

    Phosphorus Dimerization in Gallium Phosphide at

    2021-3-13  Phosphorus dimerization in GaP sheds light on the nature of the super-Cmcm phase and provides critical new insights into the high-pressure polymorphism of octet semiconductors. Bond directionality and anisotropy explain the relatively low symmetry of this high-pressure phase.get price

    Novel superconducting skutterudite-type phosphorus

    2014-7-30  High pressure phosphorus nitride structures. In the first instance, fixed composition searches were performed using one and two formula units of P 3 N 5 at pressures of 25 GPa, 50 GPa, 100 GPa and 200 GPa, yielding the Imm2 γ-phase at lower pressures, and the previously predicted C2/c oxyvanite phase at high pressures, in agreement with the findings of Dong et al. 34 The recovery of anget price

    位置: 8600 Rockville Pike, Bethesda, MD

    Dietary Phosphorus and Blood Pressure Hypertension

    2008-2-4  Raised blood pressure (BP) commonly affects middle- and older-aged adults and is a major contributor to the high rates of coronary heart disease and stroke worldwide. 1 Data from epidemiological studies 2,3; randomized, controlled trials 4–13; and studies of migrants 14,15 show the importance of dietary factors in the primary prevention andget price

    Crystal Structures Adopted by Black Phosphorus at

    Black phosphorus undergoes two reversible structural transitions at high pressures. The first is to a structure of the type arsenic A7. This structure is transformed to a simple cubic structure at higher pressures. The reversibility between the A7 and simple cubic structures at 111 kilobars indicates that the transition obtainable at this pressure provides a good calibration point by whichget price

    Pressure-induced phase transitions and superconductivity

    2018-9-27  A high-pressure study of a black phosphorus crystal establishes a rich phase diagram, including Weyl semimetal and super-conducting states, Lifsh itz-type semiconductor–semimetal transi-tions, and two structural phase transitions. Transport properties and quantum oscillations under high pressure provide criticallyget price

    Pressure-induced phase transitions and

    2018-10-2  A high-pressure study of a black phosphorus crystal establishes a rich phase diagram, including Weyl semimetal and superconducting states, Lifshitz-type semiconductor–semimetal transitions, and two structural phase transitions. Transport properties and quantum oscillations under high pressure provide critically valuable information to understand the physics of these new phases.get price

    High Phosphate (Phosphorus): Causes, Effects & Ways

    2021-1-18  Phosphorus is the second most abundant mineral in the body, essential for energy, bone, heart, lung, and brain health. Imbalances may disrupt your metabolism and raise your risk of chronic diseases. Diet and income can have a huge impact, affecting the number of dangerous phosphate additives in your grocery basket. Learn more about the causes get price