Re-evaluation of the X-ray crystal structure of [Ta4F20] and the synthesis and characterization of a series of mixed-metal pentafluorides of niobium and tantalum

被引：6

作者：

Brewer, SA ^{[1
]}

Brisdon, AK ^{[1
]}

Fawcett, J ^{[1
]}

Holliman, PJ ^{[1
]}

Holloway, JH ^{[1
]}

Hope, EG ^{[1
]}

Russell, DR ^{[1
]}

机构：

[1] Univ Leicester, Dept Chem, Leicester LE1 7RH, Leics, England

来源：

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 2006年 / 632卷 / 02期

关键词：

tantalum; niobium; fluorides; structure elucidation;

D O I：

10.1002/zaac.200500374

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The direct fluorination of intimately mixed niobium and tantalum powders gives a range of mixed-metal pentafluorides [NbxTa4-xF20] (x=1 2, 2 3, 3 4) as discreet species isostructural with tantalum pentafluoride (x=0 1). The crystal structures of 1-4 are indistinguishable by X-ray crystallography. Complex 1 crystallizes in the monoclinic space group C2/m with a=9.5462(13), b=14.3578(19), c=5.0174(7) angstrom, beta=97.086(2)degrees, Z=2. The geometry about the tantalum atom is distorted octahedral with 2 short and 2 slightly longer Ta-F-terminal, and 2 Ta-F-bridging distances. The angles at the bridging fluorine atoms are 172.9(5)degrees.

引用

页码：325 / 329

页数：5

共 17 条

[1] SINGLE-CRYSTAL RAMAN SPECTRUM OF BISMUTH PENTAFLUORIDE AND OF ANTIMONY TETRACHLORIDE FLUORIDE AND VIBRATIONAL SPECTRUM OF VANADIUM NIOBIUM TANTALUM AND ANTIMONY PENTAFLUORIDES [J].

BEATTIE, IR ;

LIVINGSTON, KM ;

OZIN, GA ;

REYNOLDS, DJ .

JOURNAL OF THE CHEMICAL SOCIETY A -INORGANIC PHYSICAL THEORETICAL, 1969, (06) :958-+

[2]

CANTERFORD JH, 1968, HALIDES 1 2 ROW TRAN

[3] PREPARATION AND STRUCTURE OF RUTHENIUM TETRAFLUORIDE AND A STRUCTURAL COMPARISON WITH RUTHENIUM TRIFLUORIDE AND RUTHENIUM PENTAFLUORIDE [J].

CASTEEL, WJ ;

WILKINSON, AP ;

BORRMANN, H ;

SERFASS, RE ;

BARTLETT, N .

INORGANIC CHEMISTRY, 1992, 31 (14) :3124-3131

[4]

Edwards A., COMMUNICATION

[5] STRUCTURES OF NIOBIUM + TANTALUM PENTAFLUORIDES [J].

EDWARDS, AJ .

JOURNAL OF THE CHEMICAL SOCIETY, 1964, (OCT) :3714-&

[6] SOLID-STATE STRUCTURES OF THE BINARY FLUORIDES OF THE TRANSITION-METALS [J].

EDWARDS, AJ .

ADVANCES IN INORGANIC CHEMISTRY, 1983, 27 :83-112

[7]

EDWARDS AJ, 1969, J CHEM SOC A, P958

[8] XEF2-MF5 (M = SB, TA, OR NB) SYSTEMS - VIBRATIONAL-SPECTRA OF SOLID XENON DIFLUORIDE ADDUCTS [J].

FRLEC, B ;

HOLLOWAY, JH .

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1975, (06) :535-540

[9] METAL(II) HEXAFLUOROARSENATES - PREPARATION AND VIBRATIONAL SPECTROSCOPY OF MF2.2ASF5 (M = MG, CA, SR, BA, MN, CO, NI, CD, HG, PB) ADDUCTS [J].

FRLEC, B ;

GANTAR, D ;

HOLLOWAY, JH .

JOURNAL OF FLUORINE CHEMISTRY, 1982, 19 (3-6) :485-500

[10] CRYSTAL STRUCTURE OF RUTHENIUM PENTAFLUORIDE [J].

HOLLOWAY, JH ;

PEACOCK, RD ;

SMALL, RWH .

JOURNAL OF THE CHEMICAL SOCIETY, 1964, (FEB) :644-&

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