Welcome to LookChem.com Sign In|Join Free

CAS

  • or

17786-31-1

Post Buying Request

17786-31-1 Suppliers

Recommended suppliersmore

  • Product
  • FOB Price
  • Min.Order
  • Supply Ability
  • Supplier
  • Contact Supplier

17786-31-1 Usage

Uses

Catalyst precursor in the interand intramolecular Pauson-Khand reaction.

Chemical Properties

black crystal(s); air sensitive [DOU83] [STR93]

Preparation

Tetracobalt dodecacarbonyl is most conveniently prepared by thermal decomposition of the octacarbonyl at 50° in an inert atmosphere : 2Co2(CO)8 → Co4(CO)12+4CO at present it cannot be prepared direct from cobalt(II) salts and carbon monoxide. Treatment of Co4(CO)12 with alkali metals in tetrahydrofuran gives the green-yellow [Co6(CO)15]2- ion which is slowly transformed into the red-brown [Co6(CO)14]4- anion; these ions are oxidized in aqueous solution by iron(III) chloride to a mixture of carbonyls from which the black Co6(CO)16 can be extracted.

Structure and conformation

It consists of a tetrahedron of cobalt atoms ; three of these have two terminal CO groups and are bridged by CO groups, the other cobalt atom is bonded to three terminal CO groups and the other three cobalt atoms only. The infrared spectrum is considerably simpler than would be expected theoretically for such a structure and consequently a different structure has been proposed for Co4(CO)12 in solution. The carbonyl CO6(CO)16 has a similar infrared spectrum to, and is isomorphous with, Rh6(CO)16 so that it probably has the same structure.

Check Digit Verification of cas no

The CAS Registry Mumber 17786-31-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,7,8 and 6 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 17786-31:
(7*1)+(6*7)+(5*7)+(4*8)+(3*6)+(2*3)+(1*1)=141
141 % 10 = 1
So 17786-31-1 is a valid CAS Registry Number.
InChI:InChI=1/12CO.4Co/c12*1-2;;;;

17786-31-1 Well-known Company Product Price

  • Brand
  • (Code)Product description
  • CAS number
  • Packaging
  • Price
  • Detail
  • Alfa Aesar

  • (13055)  Dodecacarbonyltetracobalt, 98% min   

  • 17786-31-1

  • 1g

  • 612.0CNY

  • Detail
  • Alfa Aesar

  • (13055)  Dodecacarbonyltetracobalt, 98% min   

  • 17786-31-1

  • 5g

  • 3005.0CNY

  • Detail
  • Alfa Aesar

  • (13055)  Dodecacarbonyltetracobalt, 98% min   

  • 17786-31-1

  • 25g

  • 14473.0CNY

  • Detail

17786-31-1SDS

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 carbon monoxide,cobalt

1.2 Other means of identification

Product number -
Other names Tetracobaltdodecacarbonyl

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:17786-31-1 SDS

17786-31-1Upstream product

17786-31-1Downstream Products

Post a RFQ

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

1

What can I do for you?
Get Best Price

Get Best Price for 17786-31-1