منابع مشابه
Zintl behavior and vacancy formation in type-I Ba-Al-Ge clathrates
In a study of type-I Ba8AlxGe46−x clathrates for 4!x!16, several samples with different stoichiometric compositions were prepared and measured. Here we report wavelength dispersion spectroscopy, powder x-ray diffraction and resistivity measurements, coupled with first-principles calculations. The lattice constant and vacancy count showed linear behavior for low Al content, extrapolating to the ...
متن کاملPoint Defects in B2 Intermetallic Compounds
We are applying perturbed angular correlations (PAC) to study point defects near 111In probes in ordered B2 alloys. Systems studied include NiAl, CoAl, FeAl, CoGa and PdIn Ten different point defect configurations have been observed in annealed, quenched or mechanically-milled samples. The present status of this work is summarized. Systematics of hyperfine interactions of vacancy defects are th...
متن کاملCrystal structure and chemical bonding of the intermetallic Zintl phase Yb11AlSb9.
High resolution single crystal synchrotron X-ray diffraction data measured at 15(2) K were used to solve the structure of the complex intermetallic Zintl phase, Yb(11)AlSb(9) (space group Iba2), made up of Yb cations and polyanions along with isolated Sb anions. The 15(2) K cell parameters are a = 11.7383(4) Å, b = 12.3600(4) Å, c = 16.6796(6) Å. The temperature dependence of the structure was ...
متن کاملZintl Anions
The chemistry of nine-atom deltahedral Zintl anions of Group 14 has advanced greatly in recent years. Redox reactions of these clusters have led to dimers, trimers, tetramers, and infinite chains of germanium clusters such as [Ge9-Ge9] 6 , [Ge9=Ge9=Ge9] 6 , [Ge9=Ge9=Ge9=Ge9] 8 , 1[-(Ge9) 2 -], and 1[-(HgGe9) 2 -]. Similar redox reactions combined with nucleophilic addition of various anions hav...
متن کاملMethane storage in tea clathrates.
Methane can be stored in tea clathrates, that is kinetics of methane clathrate formation can be significantly accelerated (90% saturation uptake in 20 min) by ingredients (polyphenols and saponins) in tea infusions with a volumetric capacity of up to 172 v/v.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Zeitschrift für anorganische und allgemeine Chemie
سال: 2020
ISSN: 0044-2313,1521-3749
DOI: 10.1002/zaac.202000107