نتایج جستجو برای: fe c

تعداد نتایج: 1122329  

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: :international journal of nano dimension 0
f. taleshi department of applied science, qaemshahr branch, islamic azad university, qaemshahr, iran. ali a. hosseini department of physics, university of mazandaran, babolsar, 47416-95447, iran.

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 negative effects on diameter and mor...

Journal: :Journal of basic microbiology 2003
Xia Li Qin Xiaoming R Michael L McKay

Cryptomonads show strong seasonal distribution in lakes yet little is known of their nutrient requirements. In this study, we examined the role of Fe nutrition in the growth and photosynthetic properties of two freshwater cryptomonads (Cryptomonas sp. UTCC 337 and C. erosa UTCC 446). Cryptomonas sp. appeared more tolerant to Fe deprivation compared with C. erosa. Growth rates calculated for Cry...

2012
Mikhail A. Ogienko Dmitry Yu. Naumov Sergey N. Konchenko

Reaction between [Fe2(μ-S2)(CO)6] and [Ca(thf)4(dpp-BIAN)] [dpp-BIAN = 1,2-bis-(2,6-diisopropyl-phenyl-imino)-acenaphthene and thf = tetra-hydro-furan] proceeds as a redox process via a two-electron reduction of [Fe2(μ-S2)(CO)6] and a two-electron oxidation of (dpp-BIAN)(2-), resulting in the formation of the title heterometallic trinuclear cluster, [CaFe2(μ3-S)2(C4H8O)4(CO)6], and neutral dpp-...

2008
Masumi Itazaki Masahiro Kamitani Hiroshi Nakazawa

In the title complex, [Fe(C(5)H(5)){Sn(C(2)H(5))(3)}(C(5)H(5)N)(CO)], the Fe atom is coordinated by carbonyl, pyridine, triethyl-stannyl and cyclo-penta-dienyl ligands in a typical three-legged piano-stool configuration. The Fe-Sn and Fe-N bond distances are 2.5455 (13) and 1.984 (6) Å, respectively.

2011
Bang-Shao Yin Tian-Bao Li Ming-Sheng Yang

The title compound, [Fe(2)(C(3)H(6)S(2))(C(18)H(15)P)(2)(CO)(4)], which might serve as an active-site model of [FeFe]-hydrogenase, contains two fused Fe/S/C/C/C/S six-membered rings, one of which has a chair conformation and the other a boat conformation. Each Fe atom is coordinated by two carbonyl ligands, a triphenyl-phosphane ligand and a bis-bidentate dithiol-ate ligand, and also forms an F...

2010
Arthur D. Hendsbee Jason D. Masuda Adam Piórko

At 296 (2) K, both complexed rings in the iron(II) complex cation of the title salt, [Fe(C(5)H(5))(C(16)H(10)O(2))]PF(6), are almost parallel [dihedral angle between planes = 2.4 (3)°]. The quaternary C atoms of the complexed arene ring are located at the longest distance from the Fe atom, with Fe-C distances of 2.112 (4) and 2.105 (3) Å, which are slightly longer than the average Fe-C distance...

Journal: :Crystals 2022

The molecular interaction volume model (MIVM) developed by Tao is a fluid-based derived from statistical thermodynamics and fluid phase equilibria. MIVM was applied successfully to predict each element’s activity in Mn-based alloys, namely, Mn-C Mn-Fe, Mn-Fe-C systems. calculated binary parameters between metals (Fe, Mn) nonmetal (C) confirming strong Fe Mn alloy. indicated that iron has great ...

Journal: :Dalton transactions 2015
Kiyokazu Santo Masakazu Hirotsu Isamu Kinoshita

Dibenzothienyl Schiff bases, DBT-NN and DBT-NP, were derived from condensation of 4-formyldibenzothiophene with N,N-dimethylethylenediamine and 2-(diphenylphosphino)ethylamine, respectively. A photochemical reaction of [Fe(CO)5] with DBT-NN produced diiron complexes, [Fe2(μ-DBT-NN)(CO)6] (1) and [{Fe(μ-BPT-NN-κ(3)S,C,N)(CO)2}Fe(CO)3] (2). Complex 1 has π coordination of a Schiff base C=N bond a...

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