119010-39-8

Basic information

• Product Name: (2,6-(t-Bu)2-4-MeC₆H₂O)2Cr(THF)2
• CAS NO: 119010-39-8
• Molecular Weight: 634.904
• Mol File: 119010-39-8.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: (2,6-(t-Bu)2-4-MeC₆H₂O)2Cr(THF)2(CAS DataBase Reference)
• NIST Chemistry Reference: (2,6-(t-Bu)2-4-MeC₆H₂O)2Cr(THF)2(119010-39-8)
• EPA Substance Registry System: (2,6-(t-Bu)2-4-MeC₆H₂O)2Cr(THF)2(119010-39-8)

Safety Data

• Hazardous Substances Data: 119010-39-8(Hazardous Substances Data)

Upstream product

• 128-37-0 2,6-di-tert-butyl-4-methyl-phenol 
• 15604-50-9 CrCl₂(tetrahydrofuran)2 
• 7646-69-7 sodium hydride 

Relevant articles and documents

Chromium(II) Alkoxides: Synthesis and Crystal Structure of the Monomeric 2 (R=2,6-Dimethylphenyl) and Dimeric 4 (R=Phenyl; L=THF, Pyridine) without a Cr-Cr Bond. An Insight into the Question of Cr-Cr Quadropole Bond Formation

Chromium(II) alkoxides have been synthesized by reaction of CrCl2THF2 with RONa .The reaction products are highly insoluble, pyrophoric, and probably polimeric n (1).In the case of the sterically demanding alkoxide R=2,6-(t-But)2-4-MePh, the highly soluble and monomeric (RO)2Cr(THF)2 has been obtained in crystalline form.Less bulky ligands allow a fast reaction with an excess RONa leading to the formation of the purple 2 (2).In the case of R=2,6-dimethylphenyl, a stable crystalline compound has been isolated upon treatment with N,N,N',N'-tetramethylethylenediamine (TMEDA).The crystal data of 2 (2b) at 130 K are as follows: a=13.882 (4), b=14.189 (3), c=15.700 (7) Angstroem; α=66.47 (3), β=67.99 (2), γ=87.33 (2) deg; Z=2; triclinic space group P1.Solvent removal in vacuo allows the dimerization of 2 with formation of the green 4 (L=THF, (py) (3).The structure of the phenyl derivative has been demonstrated by X-ray analysis.Crystal data for -4*C6H5CH3 (3a'') are as follows: a=13.672 (1), b=22.561 (1), c=23.013 (1) Angstroem; Z=4; orthorhombic space group Pccn.The long Cr...Cr distance in the complex 3a'' (3.634 (1) Angstroem) rules out the presence of a Cr-Cr bond.Na abstraction from 2 to 3 by reaction with 18-crown-6 leads to the formation of polymeric 1.