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260924

Sigma-Aldrich

Bis(cyclopentadienyl)niobium(IV) dichloride

95%

Synonym(s):

Di(cyclopentadienyl)niobium(IV) dichloride, Niobocene dichloride

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About This Item

Empirical Formula (Hill Notation):
C10H10Cl2Nb
CAS Number:
12793-14-5
Molecular Weight:
294.00
MDL number:
MFCD00009949
UNSPSC Code:
12352300
PubChem Substance ID:
24855779
NACRES:
NA.22

Assay

95%

reaction suitability

core: niobium
reagent type: catalyst

SMILES string

Cl[Nb]Cl.[CH]1[CH][CH][CH][CH]1.[CH]2[CH][CH][CH][CH]2

InChI

1S/2C5H5.2ClH.Nb/c2*1-2-4-5-3-1;;;/h2*1-5H;2*1H;/q;;;;+2/p-2

InChI key

CYMWZQTUXXEBCR-UHFFFAOYSA-L

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Application

Catalyst for:
  • Chain growth in controlled polymerization reactions
  • Reduction elimination reactions
  • Olefin polymerization reactions

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H335

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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M M Harding et al.
Journal of medicinal chemistry, 39(25), 5012-5016 (1996-12-06)
The solution chemistry and interactions of niobocene dichloride, Cp2NbCl2, with nucleosides, nucleotides, and amino acids has been studied by 1H and 31P NMR spectroscopy. The 1H NMR spectrum of Cp2NbCl2 in 10% DMSO-d6/D2O contains two sharp singlets consistent with hydrolysis
G Mokdsi et al.
Journal of inorganic biochemistry, 86(2-3), 611-616 (2001-09-22)
The interaction of the antitumor active metallocene dihalides Cp(2)MCl(2) (M=Ti, Nb, Mo) and 1 equiv. of glutathione was studied by (1)H NMR spectroscopy at pD 2-7 in 4 mM NaCl solutions. No interaction between glutathione and titanocene dichloride was detected

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