75180-85-7

Usage

Uses

Used in Chemical Synthesis Industry:
(2,3-BIS-(2,6-DI-ISOPROPYLPHENYL-IMINO)-BUTANE)-NICKEL(II)-DIBROMIDE is used as a catalyst for the polymerization of olefins, facilitating the process by acting as a coordination center with other molecules. The ligand in the complex provides steric protection to the nickel atom, which helps prevent unwanted side reactions and enhances the selectivity of the catalytic process.
Used in Research and Development:
(2,3-BIS-(2,6-DI-ISOPROPYLPHENYL-IMINO)-BUTANE)-NICKEL(II)-DIBROMIDE is of interest to researchers and industrial chemists for its potential applications in the production of various organic compounds and materials. Its unique catalytic properties and the ability to control the selectivity of reactions make it a valuable tool in the development of new chemical processes and products.

Upstream product

• 28923-39-9 nickel(II) bromide dimethoxyethane 
• 13462-88-9 nickel dibromide 

Downstream Products

• 75170-97-7 ((((CH₃)2CH)2C₆H₃NC(CH₃))2)Ni(CH₃)2 
• 927834-92-2 ((2,6-C₆H₃(iPr)2)N=C(CH₃)-C(CH₃)=N(2,6-C₆H₃(iPr)2)NiBr)2MgBr₂thf2 
• 129616-14-4 ((C(CH₃)NC₆H₃(CH(CH₃)2)2)2)Ni(butadiene) 
• 927834-93-3 (2,6-C₆H₃(iPr)2)N=C(CH₃)-C(CH₃)=N(2,6-C₆H₃(iPr)2)2Ni₂Br₂ 
• 1429660-46-7 [((2,6-(i-Pr)₂C₆H₃)NC(Me))₂Ni(η⁴-C₄-phenazine)] 
• 603956-34-9 [diacetyl-bis(2,6-diisopropylphenylimine)](η3-methallyl)nickel(II) hexafluorophosphate 
• 215810-72-3 Ni((C(CH₃)NC₆H₃(CH(CH₃)2)2)2)(CH₂Si(CH₃)3)2 

Relevant academic research and scientific papers

α-Diimine transition-metal complexes: Mechanochemistry - A new synthetic approach Dedicated to Professor Maria Jose? Calhorda on the occasion of her 65th birthday.

Preliminary results on the preparation of nickel(II) and cobalt(II) complexes containing α-diimine ligands using a mechanochemical approach are presented. The solvent-free reaction of [NiBr2(DME)] (DME = 1,2-dimethoxyethane) with the appropriate α-diimine ligand led to the formation of the expected Ni(II) complexes in very short reaction times and with quantitative yields. The same compounds were also successfully synthesised when NiBr2 was employed. This methodology was extended to the preparation of [Co(α-diimine)Cl2] complexes through the reaction of CoCl2 with different α-diimine ligands. These compounds were characterised by XRPD and SCXRD, when possible. The results obtained confirm that mechanochemistry has an enormous potential and that is an effective technique for the synthesis of coordination and organometallic compounds.

New nickel(II) diimine complexes and the control of polyethylene microstructure by catalyst design

Starting from differently substituted boronic acids as versatile building block, new "ortho-aryl" α-diimine ligands a-h were synthesized in an easy, high-yielding route. Reaction of the complex precursor diacetylacetonato-nickel(II) with a trityl salt, li

Novel non-symmetric nickel-diimine complexes for the homopolymerization of ethene: Control of branching by catalyst design

Non-symmetric diimine ligands (Ar-N=C(CH3)-(CH3)C=NAr*; Ar: 2,6-diisopropyl-phenyl; Ar*: 2,6-di(4-tert-butyl-phenyl)phenyl (4b), 2,6-di(4-OCH3)-phenyl)phenyl (4c)) were synthesized and converted in-situ into the corresponding nickel dibromo complexes (5b, c) by reaction with (DME)NiBr2. The complexes were activated for ethene polymerization by treatment with MAO at ambient temperature. The resulting high molecular weight polymer products (Mw > 4.0 × 106 g mol-1) have a branched microstructure (predominantly methyl groups), as indicated by 13C NMR spectroscopy. The degree of branching can be controlled by a proper choice of the 2,6-diphenyl modified aniline moieties resulting in melting transitions ranging from 92 - 130°C.