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Cobalt--gallium (1/3) | 12052-29-8

分子结构分类

中文名称
——
中文别名
——
英文名称
Cobalt--gallium (1/3)
英文别名
cobalt;gallane
Cobalt--gallium (1/3)化学式
CAS
12052-29-8
化学式
CoGa3
mdl
——
分子量
268.162
InChiKey
GLVYVGKCRALZCA-UHFFFAOYSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

计算性质

  • 辛醇/水分配系数(LogP):
    -3.55
  • 重原子数:
    4
  • 可旋转键数:
    0
  • 环数:
    0.0
  • sp3杂化的碳原子比例:
    0.0
  • 拓扑面积:
    0
  • 氢给体数:
    0
  • 氢受体数:
    0

反应信息

  • 作为反应物:
    描述:
    Cobalt--gallium (1/3) 、 以 melt 为溶剂, 生成 、
    参考文献:
    名称:
    Three Novel Phases in the Sm−Co−Ga System. Syntheses, Crystal and Electronic Structures, and Electrical and Magnetic Properties
    摘要:
    This paper presents the synthesis, identification, and characterization of three novel phases in the ternary system Sm-Co-Ga: SmCoGa5 (tP7, HoCoGa5 type, tetragonal P4/mmm, Z = 1, a = 4.2419(3) angstrom, and c = 6.8559(5) angstrom), Sm4Co3Ga16 (tP23, tetragonal P4/mmm, Z = 1, a = 6.0620(5) angstrom, and c = 11.1495(9) angstrom), and SmCoGa4 (oC24, YNiAl4 type, orthorhombic Cmcm, Z = 4, a = 4.1246(6) angstrom, b = 15.608(2) angstrom, and c = 6.4556(9) angstrom). The structure of SmCoGa5 was obtained from a multiphase X-ray powder Rietveld refinement whereas the crystal structures of the other two phases were determined from single-crystal X-ray analysis. Electronic structures were calculated for all phases by first-principles DFT methods. The atomic arrangements and bonding are discussed on the basis of the partial anionic networks involving Co and Ga atoms, and a strong structural correlation is observed between SmCoGa5 and Sm4Co3Ga16. The latter, which displays paramagnetic behavior, has a resistivity of 4.2 mu Omega center dot cm at 3 K and undergoes a superconducting transition at 2.8 K.
    DOI:
    10.1021/ic0700755
  • 作为产物:
    描述:
    氢化镓氢化铕 以 melt 为溶剂, 以0%的产率得到
    参考文献:
    名称:
    Fritsch, V.; Bobev, S.; Moreno, N. O., Physical Review B: Condensed Matter and Materials Physics, p. 1 - 4
    摘要:
    DOI:
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文献信息

  • REMGa<sub>3</sub>Ge and RE<sub>3</sub>Ni<sub>3</sub>Ga<sub>8</sub>Ge<sub>3</sub> (M = Ni, Co; RE = Rare-Earth Element):  New Intermetallics Synthesized in Liquid Gallium. X-ray, Electron, and Neutron Structure Determination and Magnetism
    作者:Marina A. Zhuravleva、Robert J. Pcionek、Xiaoping Wang、Arthur J. Schultz、Mercouri G. Kanatzidis
    DOI:10.1021/ic0341892
    日期:2003.10.1
    RE(3)Ni(3)Ga(8)Ge(3) (2) (RE = Sm, Gd) were obtained from exploratory reactions involving rare-earth elements (RE), transition metal (M), Ge, and excess liquid Ga the reactive solvent. The crystal structures were solved with single-crystal X-ray and electron diffraction. The crystals of 1 and 2 are tetragonal. Single-crystal X-ray data: YNiGa(3)Ge, a = 4.1748(10) A, c = 23.710(8) A, V = 413.24(2) A(3), I4/mmm
    新的四元属间相REMGa(3)Ge(1)(RE = Y,Sm,Tb,Gd,Er,Tm; M = Ni,Co)和RE(3)Ni(3)Ga(8)Ge(3) (2)(RE = Sm,Gd)是由涉及稀土元素(RE),过渡属(M),Ge和过量液态Ga反应性溶剂的探索性反应获得的。用单晶X射线和电子衍射解析晶体结构。1和2的晶体是四方晶。单晶X射线数据:YNiGa(3)Ge,a = 4.1748(10)A,c = 23.710(8)A,V = 413.24(2)A(3),I4 / mmm,Z = 4; Gd(3)Ni(3)Ga(8)Ge(3),a = 4.1809(18)A,c = 17.035(11)A,V = 297.8(3)A(3),P4 / mmm,Z = 1.这两种化合物均具有Ga原子的方网。用中子衍射确定REMGa(3)Ge中Ga和Ge原子的分布。中子实验表明,在1中,Ge原子特别位于
  • Kinetics of Oxidation Processes in the System Co/Ga studied byin situ X-Ray Diffraction
    作者:Ulrich Koops、Manfred Martin
    DOI:10.1002/zaac.200300141
    日期:2003.9
    Gemenge von cobalt- und galliumhaltigen Oxiden. Dagegen wird bei der Oxidation der intermetallischen Phasen CoGa und CoGa3 nur Gallium oxidiert, und es bilden sich dichte Deckschichten aus β-Ga2O3. In allen Fallen sind die gebildeten Oxide nur Zwischenprodukte auf dem Weg zum thermodynamischen Gleichgewicht, welches der Totaloxidation beider Metalle entspricht. Die Kinetik der Oxidation der intermetallischen
    通过原位 X 射线衍射在 800 到 1000 °C 之间的温度下研究了 Co/Ga 系统中的化过程。使用属粉末和平面基材进行实验。富 Co1-xGax 的化导致形成含化物的混合物。在属间化合物 CoGa 和 CoGa3化过程中,只有化,并形成了致密的 β-Ga2O3 失去光泽层。在所有情况下,化物产物只是达到热力学平衡的中间产物,即两种属的完全化。通过时间分辨原位 X 射线衍射详细研究了属间化合物 CoGa 化过程中的动力学。在诱导时间之后,动力学可以通过具有 312 kJ mol-1 活化能的抛物线速率定律来描述。从抛物线速率常数随着分压的降低而减小以及在属-化物界面处孔形成的观察可以得出结论:(i) Ga 离子通过 β- 向外扩散是此过程中的速率决定步骤固态反应,以及 (ii) Ga 离子可通过空位移动。Untersuchungen
  • Structural Versatility of the ε-SmGa<sub><i>x</i></sub> Phase: X-Ray, Electron Diffraction, and DFT Studies
    作者:Monique Tillard、David Zitoun、Claude Belin
    DOI:10.1021/ic801379c
    日期:2009.3.16
    Two new compounds, SmGa2.67 (hexagonal, P (6) over bar 2c, Z = 15, a = 12.861(2), c = 8-4402(8) angstrom) and SmGa3.64 (orthorhombic, Fmmm, Z = 24, a = 8.493(1), b = 14.912(2), c = 17.080(2) angstrom), have been synthesized and identified in the Sm-Ga system and their crystal structures solved and refined from single-crystal X-ray diffraction. These structures display consistent atomic disorder. Electronic structures have been calculated using first-principle DFT methods with ordered models. Atomic arrangements and bonding are analyzed on the basis of gallium partial anionic networks; they are compared with those of some analogous compounds in the other lanthanide-gallium systems.
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