نتایج جستجو برای: fe c

تعداد نتایج: 1122329  

Journal: :Journal of the Japan Institute of Metals and Materials 1984

2009
A. Buono G. Whelan D. Walker

Introduction: The Earth’s outer core is known to be ~10% less dense than pure metallic Fe-Ni liquid [1, 2] and thus is thought to contain ~10% light elements [e.g., 1] with proposed candidates including sulfur (S), carbon (C), oxygen (O), hydrogen (H), and silicon (Si). The presence of minor, lighter alloying elements is also argued for metallic cores of other planetary bodies including inner t...

Journal: :IOP Conference Series: Materials Science and Engineering 2021

Journal: :Journal of the American Chemical Society 2010
Yuhui Lu Rebecca Quardokus Craig S Lent Frederic Justaud Claude Lapinte S Alex Kandel

{Cp*(dppe)Fe(C≡C-)}(2)(1,3-C(6)H(4)) is studied both as a neutral molecule, Fe(II)-Fe(II), and as a mixed-valence complex, Fe(II)-Fe(III). Scanning tunneling microscopy (STM) is used to image these species at 77 K under ultrahigh-vacuum conditions. The neutral molecule Fe(II)-Fe(II) has a symmetric, "dumbbell" appearance in STM images, while the mixed-valence complex Fe(II)-Fe(III) demonstrates...

2011
Shang Gao Chun-Ai An Qian Duan Da-Yong Jiang

In the title compound, [Fe(2)(C(4)H(2)N(2)S(2))(C(3)H(9)P)(CO)(5)], the Fe(2)S(2) core adopts a butterfly conformation. The PMe(3) ligand is coordinated in the basal position, roughly cis to the Fe-Fe bond. The Fe-Fe distance of 2.4970 (6) Å is relatively short compared to those (ca 2.53 Å) found in another monosubstituted diiron compound. A rigid planar dithiol-ate bridge is featured, with an ...

Ali A. Hosseini F. Taleshi,

In this study, we describe the growth of carbon nanotubes on commercial iron nanoparticles without carbon shell (Fe (nm), size 2O3 and Fe* (nm)/MgO) was carried out by mixing commercial Fe* nanoparticles (as catalyst) with Al2O3 and MgO powders (as supports)by using ball-milling method. The results show in spite of the fact that ball-milling process can have neg...

Journal: :journal of sciences islamic republic of iran 0

mono and bis hexamethylenetetramine iron(iii) chloride, fe(n c ,h ) ci (i) and fe(n c ,h ) cl (ii) were synthesized by the reaction of iron(iii) chloride and hexamethylenetetramine (hmta) in chloroform. chemical analysis and spectral results show the coordination of hmta to the iron(iii). electronic transition spectra of compound i and i1 were also studied in coordinating and noncoordinating so...

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