75180-85-7

Basic information

• Product Name: (2,3-BIS-(2,6-DI-ISOPROPYLPHENYL-IMINO)-BUTANE)-NICKEL(II)-DIBROMIDE
• Synonyms: (2,3-BIS-(2,6-DI-ISOPROPYLPHENYL-IMINO)-BUTANE)-NICKEL(II)-DIBROMIDE
• CAS NO: 75180-85-7
• Molecular Formula: C₂₈H₄₀Br₂N₂Ni
• Molecular Weight: 623.13
• Mol File: 75180-85-7.mol
• Article Data: 3

Chemical Properties

• Appearance: /
• CAS DataBase Reference: (2,3-BIS-(2,6-DI-ISOPROPYLPHENYL-IMINO)-BUTANE)-NICKEL(II)-DIBROMIDE(CAS DataBase Reference)
• NIST Chemistry Reference: (2,3-BIS-(2,6-DI-ISOPROPYLPHENYL-IMINO)-BUTANE)-NICKEL(II)-DIBROMIDE(75180-85-7)
• EPA Substance Registry System: (2,3-BIS-(2,6-DI-ISOPROPYLPHENYL-IMINO)-BUTANE)-NICKEL(II)-DIBROMIDE(75180-85-7)

Safety Data

• Hazard Codes: T,N
• Statements: 45-22-43-50/53
• Safety Statements: 53-36/37-45-60-61
• RIDADR: UN 3077 9 / PGIII
• Hazardous Substances Data: 75180-85-7(Hazardous Substances Data)

Usage

General Description

The chemical compound "(2,3-BIS-(2,6-DI-ISOPROPYLPHENYL-IMINO)-BUTANE)-NICKEL(II)-DIBROMIDE" is a complex containing a nickel atom bound to a ligand derived from 2,3-bis(2,6-diisopropylphenylimino)butane and two bromide ions. (2,3-BIS-(2,6-DI-ISOPROPYLPHENYL-IMINO)-BUTANE)-NICKEL(II)-DIBROMIDE is commonly used as a catalyst in organic synthesis reactions, particularly for the polymerization of olefins. The nickel atom in this complex acts as a center for coordination with other molecules, facilitating various chemical reactions. The ligand provides steric protection to the nickel atom, preventing unwanted side reactions and enhancing the selectivity of the catalytic process. (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.

Upstream product

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

Downstream Products

• 75170-97-7 ((((CH₃)2CH)2C₆H₃NC(CH₃))2)Ni(CH₃)2 
• 215810-72-3 Ni((C(CH₃)NC₆H₃(CH(CH₃)2)2)2)(CH₂Si(CH₃)3)2 
• 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)] 
• 927834-92-2 ((2,6-C₆H₃(iPr)2)N=C(CH₃)-C(CH₃)=N(2,6-C₆H₃(iPr)2)NiBr)2MgBr₂thf2 
• 603956-34-9 [diacetyl-bis(2,6-diisopropylphenylimine)](η3-methallyl)nickel(II) hexafluorophosphate 

Relevant articles and documents

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.

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.