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20644-87-5

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20644-87-5 Usage

General Description

Hexacarbonylvanadate(1-) is a chemical compound with the formula [V(CO)6]1-. It is an anion that consists of a vanadium atom surrounded by six carbon monoxide ligands. Hexacarbonylvanadate(1-) is often used as a reagent in organic synthesis and as a catalyst in various chemical reactions. Hexacarbonylvanadate(1-) is known for its ability to form stable, organometallic complexes and has been studied for its potential use in pharmaceutical applications. It is a bright yellow to orange solid and is sensitive to air and moisture, requiring storage and handling under inert atmospheres.

Check Digit Verification of cas no

The CAS Registry Mumber 20644-87-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,6,4 and 4 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 20644-87:
(7*2)+(6*0)+(5*6)+(4*4)+(3*4)+(2*8)+(1*7)=95
95 % 10 = 5
So 20644-87-5 is a valid CAS Registry Number.

20644-87-5SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

Product name hexacarbonylvanadium

1.2 Other means of identification

Product number -
Other names Hexacarbonylvanadate

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:20644-87-5 SDS

20644-87-5Relevant articles and documents

Suslick, Kenneth S.,Johnson, Robert E.

, p. 6856 - 6858 (1984)

Synthesis and structures of vanadium(II) alkynide complexes: [(LiTMEDA)2V(μ-C≡CPh)4(TMEDA)] and V(C≡CR)2(TMEDA)2 (R = Ph, tBu; TMEDA = N,N,N′,N′-tetramethylethylenediamine)

Kawaguchi, Hiroyuki,Tatsumi, Kazuyuki

, p. 4294 - 4299 (2008/10/09)

The V(II) tetrakis- and bis(alkynide) complexes, [(LiTMEDA)2V(μ-C≡CPh)4 (TMEDA)] (1) and V(C≡CPh)2(TMEDA)2 (2) have been synthesized from the reaction between VCl3(THF)3 and LiC≡CPh in THF in the presence of TMEDA (=N,N,N′,N′-tetramethylethylenediamine). In the case of the analogous VCl3(THF)3/LiC≡CtBu/TMEDA reaction system, only the bis(alkynide) complex V(C≡CtBu)2 (TMEDA)2 (3) was isolable. Reduction of vanadium occurred during these reactions, and use of a divalent vanadium chloride, VCl2(TMEDA)2, instead of VCl3(THF)3 was found to give 1-3 in higher yields. Complex 1 crystallizes in the monoclinic space group P21/c with Z = 4 in a unit cell of dimensions a = 15.761(4) A?, b = 14.325(4) A?, c = 22.614(9) A?, and β = 98.38(4)°. Crystals of 2 are orthorhombic, space group Cmcm, with a = 10.045(5) A?, b = 22.379(7) A?, c = 12.306(4) A?, and Z = 4. Crystals of 3 are triclinic, space group P1, with a = 9.402(2) A?, b = 9.833(2) A?, c = 8.907(2) A?, and Z = 1. Reactions of these alkynide complexes with electrophiles such as Me3SiCl, MeI, PhNCO, CO2, and CO were examined.

Steric effects in the oxidative-addition reactions of gaseous V(CO)5-

Buckner, Steven W.,VanOrden, Steven L.

, p. 1093 - 1097 (2008/10/08)

Some gas-phase reactions of the 16-electron complex V(CO)5- are reported. The reactions of V(CO)5-, generated by dissociative electron capture from V(CO)6, were performed in a Fourier transform ion cyclotron resonance mass spectrometer. V(CO)5- reacts with V(CO)6 to generate V(CO)6- and V2(CO)9-. V(CO)4-, also generated by dissociative electron capture from V(CO)6, reacts with V(CO)6 to generate V2(CO)7- and V2(CO)8-. These results contrast with condensed-phase photolysis studies of V(CO)6-. The reaction of V(CO)5- with CH3OH generates V(CO)4CH2O-. Labeling studies indicate a 1,2-dehydrogenation with retention of the incoming C-O group. V(CO)5- is unreactive with larger alcohols (C2-C4). this difference in reactivity is ascribed to a steric effect in the reaction intermediate. A positive second derivative in a plot of the decay kinetics for V(CO)5- consumed in the V(CO)5-/CH3OH reaction indicates the process is endothermic or there is an energy barrier along the reaction coordinate. These results also indicate internal excitation drives the dehydrogenation reaction.

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