Trivalent mononuclear mer-trichlorotris(pyridine) tantalum (III): Preparation and structure in three crystalline forms

F. Albert Cotton; Carlos A. Murillo; Xiaoping Wang

doi:10.1016/0020-1693(95)04779-4

Trivalent mononuclear mer-trichlorotris(pyridine) tantalum (III): Preparation and structure in three crystalline forms

F. Albert Cotton, Carlos A. Murillo, Xiaoping Wang

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

A convenient method of preparation of scarcely known mononuclear coordination compounds of trivalent tantalum was achieved by reduction of TaCl₅ with KC₈ in the presence of pyridine. Three crystalline forms of mer-trichlorotris(pyridine) tantalum (III) have been prepared and characterized. TaCl₃(py)₃ (1) crystallizes in the monoclinic space group P2₁/n, with a=9.242(1), b=12.596(2), c=15.689(5) Å, β=91.70(2)°, V=1825.6(7) Å³, Z=4. The pyridine solvate TaCl₃(py)₃·py (1·py) has an orthorhombic cell with space group C222₁, a=8.7914(7), b=17.042(1), c=14.474(3) Å, V=2168.6(4) Å³, Z=4. The pyridine and toluene solvate, TaCl₃(py)₃·py·(C₇H₈) (1·py·tol) also crystallizes in space group P2₁/n, with a=8.624(5), b=18.750(4), c=14.916(5) Å, β=93.96(2)°, V=2406(2) Å, Z=4. The three pyridine and three chloride ligands coordinate to the tantalum(III) center with a meridional octahedral configuration.

Original language	English
Pages (from-to)	115-118
Number of pages	4
Journal	Inorganica Chimica Acta
Volume	245
Issue number	1
DOIs	https://doi.org/10.1016/0020-1693(95)04779-4
State	Published - Apr 1 1996
Externally published	Yes

Funding

We thank Dr Lee M. Daniels for assistance and the Robert A. Welch Foundation, Grant No. A-494, for support of work at Texas A&M and to the Department of Chemistry, University of Costa Rica.

Funders	Funder number
Robert A. Welch Foundation

Keywords

Crystal structures
Pyridine complexes
Tantalum complexes

Access to Document

10.1016/0020-1693(95)04779-4

Cite this

@article{cf45597cc33848189872f80203827712,

title = "Trivalent mononuclear mer-trichlorotris(pyridine) tantalum (III): Preparation and structure in three crystalline forms",

abstract = "A convenient method of preparation of scarcely known mononuclear coordination compounds of trivalent tantalum was achieved by reduction of TaCl5 with KC8 in the presence of pyridine. Three crystalline forms of mer-trichlorotris(pyridine) tantalum (III) have been prepared and characterized. TaCl3(py)3 (1) crystallizes in the monoclinic space group P21/n, with a=9.242(1), b=12.596(2), c=15.689(5) {\AA}, β=91.70(2)°, V=1825.6(7) {\AA}3, Z=4. The pyridine solvate TaCl3(py)3·py (1·py) has an orthorhombic cell with space group C2221, a=8.7914(7), b=17.042(1), c=14.474(3) {\AA}, V=2168.6(4) {\AA}3, Z=4. The pyridine and toluene solvate, TaCl3(py)3·py·(C7H8) (1·py·tol) also crystallizes in space group P21/n, with a=8.624(5), b=18.750(4), c=14.916(5) {\AA}, β=93.96(2)°, V=2406(2) {\AA}, Z=4. The three pyridine and three chloride ligands coordinate to the tantalum(III) center with a meridional octahedral configuration.",

keywords = "Crystal structures, Pyridine complexes, Tantalum complexes",

author = "Cotton, {F. Albert} and Murillo, {Carlos A.} and Xiaoping Wang",

year = "1996",

month = apr,

day = "1",

doi = "10.1016/0020-1693(95)04779-4",

language = "English",

volume = "245",

pages = "115--118",

journal = "Inorganica Chimica Acta",

issn = "0020-1693",

publisher = "Elsevier",

number = "1",

}

TY - JOUR

T1 - Trivalent mononuclear mer-trichlorotris(pyridine) tantalum (III)

T2 - Preparation and structure in three crystalline forms

AU - Cotton, F. Albert

AU - Murillo, Carlos A.

AU - Wang, Xiaoping

PY - 1996/4/1

Y1 - 1996/4/1

N2 - A convenient method of preparation of scarcely known mononuclear coordination compounds of trivalent tantalum was achieved by reduction of TaCl5 with KC8 in the presence of pyridine. Three crystalline forms of mer-trichlorotris(pyridine) tantalum (III) have been prepared and characterized. TaCl3(py)3 (1) crystallizes in the monoclinic space group P21/n, with a=9.242(1), b=12.596(2), c=15.689(5) Å, β=91.70(2)°, V=1825.6(7) Å3, Z=4. The pyridine solvate TaCl3(py)3·py (1·py) has an orthorhombic cell with space group C2221, a=8.7914(7), b=17.042(1), c=14.474(3) Å, V=2168.6(4) Å3, Z=4. The pyridine and toluene solvate, TaCl3(py)3·py·(C7H8) (1·py·tol) also crystallizes in space group P21/n, with a=8.624(5), b=18.750(4), c=14.916(5) Å, β=93.96(2)°, V=2406(2) Å, Z=4. The three pyridine and three chloride ligands coordinate to the tantalum(III) center with a meridional octahedral configuration.

AB - A convenient method of preparation of scarcely known mononuclear coordination compounds of trivalent tantalum was achieved by reduction of TaCl5 with KC8 in the presence of pyridine. Three crystalline forms of mer-trichlorotris(pyridine) tantalum (III) have been prepared and characterized. TaCl3(py)3 (1) crystallizes in the monoclinic space group P21/n, with a=9.242(1), b=12.596(2), c=15.689(5) Å, β=91.70(2)°, V=1825.6(7) Å3, Z=4. The pyridine solvate TaCl3(py)3·py (1·py) has an orthorhombic cell with space group C2221, a=8.7914(7), b=17.042(1), c=14.474(3) Å, V=2168.6(4) Å3, Z=4. The pyridine and toluene solvate, TaCl3(py)3·py·(C7H8) (1·py·tol) also crystallizes in space group P21/n, with a=8.624(5), b=18.750(4), c=14.916(5) Å, β=93.96(2)°, V=2406(2) Å, Z=4. The three pyridine and three chloride ligands coordinate to the tantalum(III) center with a meridional octahedral configuration.

KW - Crystal structures

KW - Pyridine complexes

KW - Tantalum complexes

UR - http://www.scopus.com/inward/record.url?scp=0001955143&partnerID=8YFLogxK

U2 - 10.1016/0020-1693(95)04779-4

DO - 10.1016/0020-1693(95)04779-4

M3 - Article

AN - SCOPUS:0001955143

SN - 0020-1693

VL - 245

SP - 115

EP - 118

JO - Inorganica Chimica Acta

JF - Inorganica Chimica Acta

IS - 1

ER -

Trivalent mononuclear mer-trichlorotris(pyridine) tantalum (III): Preparation and structure in three crystalline forms

Abstract

Funding

Keywords

Access to Document

Other files and links

Fingerprint

Cite this