Equilibrium and structural study of chloro complexes of iron(III) ion in acidic aqueous solution by means of X-ray absorption spectroscopy

被引：14

作者：

Inada, Y

Funahashi, S ^{[1
]}

机构：

[1] Nagoya Univ, Grad Sch Sci, Analyt Chem Lab, Nagoya, Aichi 4648602, Japan

[2] Nagoya Univ, Res Ctr Mat Sci, Nagoya, Aichi 4648602, Japan

来源：

ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES | 1999年 / 54卷 / 12期

基金：

日本学术振兴会;

关键词：

EXAFS; complexation; formation constant; iron(III) ion; chloride ion;

D O I：

10.1515/znb-1999-1207

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Using an extended X-ray absorption fine structure (EXAFS) technique, the formation constant of the pentaaquachloroiron(III) complex was determined to be 3.8 +/- 0.4 mol(-1) dm(3) at 25.0 +/- 0.1 degrees C in a 1.00 mol dm(-3) HClO4 aqueous solution. The structures of [Fe(OH2)(6)](3+) and [FeCl(OH2)(5)](2+) were determined on the basis of the same EXAFS data.:The Fe-O bond length (2.05 Angstrom) in the latter is longer than that (2.01 Angstrom) in the former due to the electron donation and charge neutralization by the coordinating chloride ion with the Fe-Cl bond length of 2.26 Angstrom.

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页码：1517 / 1523

页数：7

相关论文

共 43 条

[1] mer-triaqua(chloranilato-O,O')chloro-iron(III) pentahydrate [J].

Abrahams, BF ;

Hoskins, BF ;

Robson, R .

ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS, 1996, 52 :2766-2768

[2] FORMATION OF GOLD(I) HALIDE AND THIOCYANATE COMPLEXES IN PYRIDINE AND ACETONITRILE AND THE STRUCTURES OF GOLD(I) SOLVATES IN THESE SOLVENTS - A THERMODYNAMIC AND EXAFS SPECTROSCOPIC STUDY [J].

AHRLAND, S ;

NILSSON, K ;

PERSSON, I ;

YUCHI, A ;

PENNERHAHN, JE .

INORGANIC CHEMISTRY, 1989, 28 (10) :1833-1838

[3] Nitrogen-14 NMR study on solvent exchange of the octahedral cobalt(II) ion in neat 1,3-propanediamine and n-propylamine at various temperatures and pressures. Tetrahedral-octahedral equilibrium of the solvated cobalt(II) ion in n-propylamine as studied by EXAFS and electronic absorption spectroscopy [J].

Aizawa, S ;

Iida, S ;

Matsuda, K ;

Funahashi, S .

INORGANIC CHEMISTRY, 1996, 35 (05) :1338-1342

[4] Characterization of aqueous plutonium(IV) nitrate complexes by extended x-ray absorption fine structure spectroscopy [J].

Allen, PG ;

Veirs, DK ;

Conradson, SD ;

Smith, CA ;

Marsh, SF .

INORGANIC CHEMISTRY, 1996, 35 (10) :2841-2845

[5] Investigation of aquo and chloro complexes of UO22+, NpO2+, Np4+, and Pu3+ by X-ray absorption fine structure spectroscopy [J].

Allen, PG ;

Bucher, JJ ;

Shuh, DK ;

Edelstein, NM ;

Reich, T .

INORGANIC CHEMISTRY, 1997, 36 (21) :4676-4683

[6]

[Anonymous], 1976, HYDROLYSIS CATIONS

[7]

BIANCONI A, 1982, EXAFS NEAR EDGE STRU

[8] EXAFS investigation of inner- and outer-sphere chloroaquo complexes of Cr3+ in aqueous solutions [J].

DiazMoreno, S ;

MunozPaez, A ;

Martinez, JM ;

Pappalardo, RR ;

Marcos, ES .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1996, 118 (50) :12654-12664

[9] STRUCTURE OF DICHLORO[TETRAKIS(TRIPHENYLPHOSPHINE OXIDE)]IRON(III) TETRACHLOROFERRATE(III) [J].

DURCANSKA, E ;

GLOWIAK, T ;

KOZISEK, J ;

ONDREJKOVICOVA, I ;

ONDREJOVIC, G .

ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY, 1989, 45 :410-412

[10] SYNTHESIS, X-RAY CHARACTERIZATION AND SPECTROSCOPIC STUDIES OF METAL-COMPLEXES OF N,N'-1,2-XYLENE-ALPHA,ALPHA'-DIYLBIS-(PYRIDIN-2-ONE) [J].

GOODGAME, DML ;

HILL, SPW ;

SMITH, AM ;

WILLIAMS, DJ .

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1994, (06) :859-870

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