نتایج جستجو برای: anions fe
تعداد نتایج: 107392 فیلتر نتایج به سال:
In the title complex, [Fe(NCS)2(C18H18N4)], the Fe(II) cation is chelated by a tris-(2-pyridyl-meth-yl)amine ligand and coordin-ated by two thio-cyanate anions in a distorted N6 octa-hedral geometry. In the crystal, weak C-H⋯S hydrogen bonds and π-π stacking inter-actions between parallel pyridine rings of adjacent mol-ecules [centroid-centroid distance = 3.653 (3) Å] link the mol-ecules into a...
The title extended solid coordination compound, {[Fe(C(44)H(40)N(2)O(4)P(2))(C(3)H(7)NO)(2)](ClO(4))(2)·2C(3)H(7)NO}(n), was crystallized un-ex-pectedly from the reaction mixture containing the Trost ligand (1R,2R)-(+)-1,2-diamino-cyclo-hexane-N,N'-bis-(2'-di-phenyl-phosphinobenzo-yl) and Fe(ClO(4))(2)·6H(2)O in a 1:1 ratio in dimethyl-formamide (DMF) under reflux conditions. The polymeric comp...
Few families of compounds have been as intensely studied as iron porphyrin complexes. In spite of this, a truly four-coordinate Fe(III) porphyrin cation has never before been reported.1 The exceptional electrophilicity of the four-coordinate [FeIII(Porph)]+ cation will even coordinate arene solvent upon crystallization if the counteranion is extremely non-coordinating, as in the work of Reed wi...
In this study, we prepared Fe-Mg-type hydrotalcites (Fe-HT3.0 and Fe-HT5.0) with different molar ratios and evaluated their adsorption capability for nitrite and nitrate ions from aqueous solution. Fe-HT is a typical hydrotalcite-like layered double hydroxide. Adsorption isotherms, as well as the effects of contact time and pH were investigated, and it was found that Fe-HT can adsorb larger amo...
The title compound, [Fe(C(12)H(8)N(2))(3)](C(6)H(5)N(2)O(2))(2), consists of one [Fe(phen)(3)](2+) cation (phen = 1,10-phenanthroline) and two 1,1-dicyano-2-eth-oxy-2-oxoethanide anions. Five atoms of the anion are disordered over two positions [site occupancy = 0.521 (13) for the major component]. In the complex cation, the Fe(II) atom is coordinated by six N atoms from three phen ligands in a...
The asymmetric unit of the title complex [Cu(C14H12N2)2]2[Fe(CN)5(NO)], consists of a [Cu(dmp)2](+) cation (dmp is 2,9-dimethyl-1,10-phenanthroline) and half an [Fe(CN)5(NO)](2-) anion. The anion is disordered across an inversion center with the Fe(II) ion slightly offset (ca 0.205Å) from the inversion center in the direction of the disordered trans-coordinating CN/NO ligands. The anion has a d...
Aluminum and iron oxides have been often used in the coagulation processes during water purification due to their unique surface properties toward anions. In the presence of silica, the coprecipitation of Al/Si or Fe/Si might decrease the efficiency of wastewater purification and reuse. In this study, surface properties and molecular structures of Al/Si and Fe/Si coprecipitates were characteriz...
Reactions of Fe(II) salts with the ligand 1,4,5,8,9,12-hexaazatriphenylene (HAT) led to the isolation and characterization of four new compounds: [Fe3(HAT)(H2O)12](SO4)3.3.3H2O (1), [Fe2(HAT)(SO4)(H2O)5](SO4).2H2O.CH3OH (2), [Fe2(HAT)(SO4)(H2O)5](SO4).3H2O (3), and [Fe3Cl5(HAT)(CH3OH)4(H2O)]Cl (4). Compound 1 crystallizes as a trinuclear cluster in which HAT acts as a tris-chelating ligand. Com...
In the title compound, [NH(C(2)H(5))(3)][Fe(C(14)H(8)N(2)O(5))(2)]·H(2)O, the iron(III) ion is hexa-coordinated by four O atoms in the basal plane [Fe-O distances in the range 1.904 (4)-1.909 (4) Å] and two N atoms in the axial plane [Fe-N = 1.981 (4) and 1.985 (4) Å] of two tridentate fully deprotonated 2-{[(2-oxido-5-nitro-phen-yl)methyl-ene]amino}-benzoato (H(2)L) ligands, forming a tetra-go...
The development of selective functionalization strategies of white phosphorus (P4) is important to avoid the current chlorinated intermediates. The use of transition metals (TMs) could lead to catalytic procedures, but these are severely hampered by the high reactivity and unpredictable nature of the tetrahedron. Herein, we report selective first steps by reacting P4 with a metal anion [Cp*Fe(C...
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