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510688

Sigma-Aldrich

Tantalum(V) chloride

anhydrous, powder, 99.999% trace metals basis

Synonym(s):

Tantalum pentachloride

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About This Item

Linear Formula:
TaCl5
CAS Number:
7721-01-9
Molecular Weight:
358.21
EC Number:
231-755-6
MDL number:
MFCD00011253
UNSPSC Code:
12352302
PubChem Substance ID:
24873525
NACRES:
NA.23

grade

anhydrous

Assay

99.999% trace metals basis

form

powder

reaction suitability

reagent type: catalyst
core: tantalum

impurities

≤15.0 ppm Trace Metal Analysis

mp

217 °C (lit.)

solubility

ethanol: slightly soluble(lit.)

density

3.68 g/mL at 25 °C (lit.)

SMILES string

Cl[Ta](Cl)(Cl)(Cl)Cl

InChI

1S/5ClH.Ta/h5*1H;/q;;;;;+5/p-5

InChI key

OEIMLTQPLAGXMX-UHFFFAOYSA-I

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Application

Used to form mixed chloro-aryloxide compounds, such as [Ta(OC6H3-2,6-i-Pr2)2Cl3]2, which form pyridine or phosphine adducts with a distortedsix-coordinate geometry. Also used as a starting material for new edge-bridged octahedral M6 cluster compounds such as CsErTa6Cl18, for which electron and stability studies were performed.

accessory

Product No.
Description
Pricing

Pictograms

CorrosionExclamation mark
GHS05,GHS07

Signal Word

Danger

Hazard Statements

H302,H314,H335

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1 - Skin Corr. 1B - STOT SE 3

Target Organs

Respiratory system

Supplementary Hazards

EUH014

Storage Class Code

8B - Non-combustible corrosive hazardous materials

WGK

WGK 1

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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Ogliaro, F. et al.
Inorganic Chemistry, 37, 6199-6199 (1998)
Janet R. Clark et al.
Inorganic chemistry, 36(17), 3623-3631 (1997-08-13)
The mixed chloro-aryloxide compounds [M(OC(6)H(3)Pr(i)(2)-2,6)(2)Cl(3)](2) (M = Nb (1a), Ta (1b); both structurally characterized) and [M(OC(6)H(3)Pr(i)(2)-2,6)(3)Cl(2)] (M = Nb (2a), Ta (2b)) react with pyridine (py) and PMe(2)Ph to produce a series of adducts cis-mer-[MCl(3)(OC(6)H(3)Pr(i)(2)-2,6)(2)(L)] (M, L: Nb, py (3a);

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