80583-79-5

Basic information

• Product Name: bis[(4-bromophenyl)tris(1-pyrazolyl)borato]cobalt(II)
• Synonyms: bis[(4-bromophenyl)tris(1-pyrazolyl)borato]cobalt(II)
• CAS NO: 80583-79-5
• Molecular Weight: 795.04
• Mol File: 80583-79-5.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: bis[(4-bromophenyl)tris(1-pyrazolyl)borato]cobalt(II)(CAS DataBase Reference)
• NIST Chemistry Reference: bis[(4-bromophenyl)tris(1-pyrazolyl)borato]cobalt(II)(80583-79-5)
• EPA Substance Registry System: bis[(4-bromophenyl)tris(1-pyrazolyl)borato]cobalt(II)(80583-79-5)

Safety Data

• Hazardous Substances Data: 80583-79-5(Hazardous Substances Data)

Upstream product

• 80593-37-9 sodium (4-bromophenyl)tris(1-pyrazolyl)borate 
• 7646-79-9 cobalt(II) chloride 
• 80583-77-3 sodium phenyltris(pyrazolyl)borate 

Downstream Products

• 80583-81-9 Co⁽²⁺⁾*2COOHC₆H₄B(N₂C₃H₃)3^(1-)=Co(COOHC₆H₄B(N₂C₃H₃)3)2 
• 80593-38-0 Co⁽²⁺⁾*2C₄H₉C₆H₄B(N₂C₃H₃)3^(1-)=Co(C₄H₉C₆H₄B(N₂C₃H₃)3)2 

Relevant articles and documents

Covalently Bound Paramagnetic Shift Reagents. 1. A Versatile Lithium Reagent Derived from Biscobalt(II)

A versatile precursor for the attachment of covalently bound paramagnetic probes has been prepared.Sodium (4-bromophenyl)tris(1-pyrazolyl)borate, 4-BrC6H4B(pz)3Na, was converted to the 4-lithio derivative via a metal-halogen exchange with butyllithium in THF at -70 deg C.Deuteration of this lithium reagent could be effected by treatment with D2O; carbonation, however, led to decomposition.Conversion of (4-BrC6H4B(pz)3)2CoII to the corresponding 4-lithio compound followed by deuteration, coupling with 1-iodobutane, or carbonation gave (4-RC6H4B(pz)3)2CoII, with R = D, n-Bu, or CO2H, respectively.The latter compound was converted to the methyl ester by reaction with diazomethane.The large isotropic shifts observed for protons on the phenyl ring and its substituents can be accurately predicted by using conventional expressions for the dipolar shifts.