1586006-93-0

Basic information

• Product Name: [(4-methylphenyl)Ca(μ-4-methylphenyl)(N,N,N’,N’-tetramethylethylenediamine)]₂
• Synonyms: [(4-methylphenyl)Ca(μ-4-methylphenyl)(N,N,N’,N’-tetramethylethylenediamine)]₂
• CAS NO: 1586006-93-0
• Molecular Weight: 677.099
• Mol File: 1586006-93-0.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: [(4-methylphenyl)Ca(μ-4-methylphenyl)(N,N,N’,N’-tetramethylethylenediamine)]₂(CAS DataBase Reference)
• NIST Chemistry Reference: [(4-methylphenyl)Ca(μ-4-methylphenyl)(N,N,N’,N’-tetramethylethylenediamine)]₂(1586006-93-0)
• EPA Substance Registry System: [(4-methylphenyl)Ca(μ-4-methylphenyl)(N,N,N’,N’-tetramethylethylenediamine)]₂(1586006-93-0)

Safety Data

• Hazardous Substances Data: 1586006-93-0(Hazardous Substances Data)

Upstream product

• 110-18-9 N,N,N,N,-tetramethylethylenediamine 
• 898268-93-4 [(4-CH₃C₆H₄)CaI(tetrahydrofuran)₄] 

Relevant articles and documents

Halide-free diarylcalcium complexes - Syntheses, structures, and stability

A general procedure was developed for the synthesis of diarylcalcium complexes by addition of KOtBu to arylcalcium iodides in THF. Intermediate arylcalcium tert-butanolate dismutates immediately leading to insoluble tert-butanolate precipitates of calcium. Depending on the steric demand and denticity of additional neutral aliphatic azabases, mononuclear or dinuclear complexes trans-[Ca(α-Naph)2(thf)4] (1), [Ca(β-Naph)2(thf)4] (2), [Ca(Tol)2(tmeda)] 2 (3), [Ca(Ph)2(tmeda)]2 (4), [Ca(Ph) 2(pmdta)(thf)] (5), [Ca(hmteta)(Ph)2] (6), and [Ca([18]C-6)(Ph)2] (7) were isolated (Naph=naphthyl; meda=N,N,N′,N′-tetramethylethylenediamine; pmdta= N,N,N′,N′′,N′′-pentamethyldiethylenetriamine; hmteta=N,N,N′,N′′,N′′′,N′′ ′-hexamethyltriethylenetetramine). The Cai￡C bond lengths vary between 250.8 and 263.5apm, the ipso-carbon atoms show low-field-shifted resonances in the 13CaNMR spectra. Calcium for your chemistry toolbox! A straightforward procedure allows the preparation of halide-free diarylcalcium complexes (see scheme; hmteta= N,N,N′, N′′,N′′′,N′′′- hexamethyltriethylenetetramine). Despite their enormous reactivity, leading to ether degradation reactions, the stability is sufficient for preparative organic and organometallic chemistry.