128388-72-7

Basic information

• Product Name: tetrakis(diisopropylamino)diphosphane
• Synonyms: tetrakis(diisopropylamino)diphosphane
• CAS NO: 128388-72-7
• Molecular Weight: 462.683
• Mol File: 128388-72-7.mol
• Article Data: 5

Chemical Properties

• CAS DataBase Reference: tetrakis(diisopropylamino)diphosphane(CAS DataBase Reference)
• NIST Chemistry Reference: tetrakis(diisopropylamino)diphosphane(128388-72-7)
• EPA Substance Registry System: tetrakis(diisopropylamino)diphosphane(128388-72-7)

Safety Data

• Hazardous Substances Data: 128388-72-7(Hazardous Substances Data)

Upstream product

• 56183-63-2 bis(diisopropylamino)chlorophosphine 
• 20684-97-3 chloro(diisopropylamino)(phenyl)phosphine 
• 153295-13-7 C₂₄H₃₈N₂P₂ 
• 65567-06-8 lithium diphenylphosphide 
• 81476-73-5 (cyclopentadienyl)(pentamethylcyclopentadienyl)zirconium dichloride 
• 133579-10-9 2,2-di-tert-butyl-1,1-bis(diisopropylamino)diphosphane 

Downstream Products

• 68880-43-3 C₁₂H₂₈N₂P⁽¹⁺⁾ 

Relevant articles and documents

Symmetrical and unsymmetrical diphosphanes with diversified alkyl, aryl, and amino substituents

We present the comprehensive study of diphosphanes with diversified substituents regarding their syntheses, structures, and properties. To this end, we have synthesized a series of novel unsymmetrical alkyl, aryl and amino-substituted diphosphanes of the general formula R1R2P-PR3R4 (where R1, R2, R3, R4 = tBu, Ph, Et2N or iPr2N) via a salt metathesis reaction of halophosphanes with metal phosphides in high yield. We vastly expanded this group of compounds by obtaining the first mono- A nd tri-amino-substituted systems. The structures of the isolated compounds were characterized by NMR spectroscopy and X-ray diffraction. The isolated unsymmetrical diphosphanes have no tendency to rearrange to the corresponding symmetrical species. Additionally, we proposed the general classification of diphosphanes based on the number of different groups attached to phosphorus atoms and their distribution within a molecule. To investigate the impact of substituents on the properties of P-centers and a molecule as a whole, we conducted a DFT study on the electronic and steric properties of the obtained systems. The experimental and theoretical results can be very useful for designing P-P systems with desired properties.

Formation of polyphosphorus ligands mediated by zirconium and hafnium complexes

The reactions of R2P-P(SiMe3)Li (R = tBu, iPr, iPr2N) with [Cp2MCl 2] (M = Zr, Hf), [Cp*z.ast;CpZrCl2] and [CpZrCl 3] yielded polyphosphorus (mainly hexaphosphorus) compounds which can be viewed as intermediates between R2P-P(SiMe3)Li and derivatives of 1,2,3,4-tetraphosphabicyclo[1.1.0] butane. Thus R 2P-P(SiMe3)Li can act as a building block for the formation of the P2 ligand and the R2P-P(P2) and R2P-P(P2)P-PR2 moieties. Solid state structures of zirconium(IV) and hafnium(IV) complexes with R2P- P(P2) and R2P-P(P2)P-PR2 ligands were established by X-ray studies.

Redox Properties of Diphosphanes

Diphosphanes undergo electrochemical one-electron oxidation.In case amino groups are at the phosphorus, the resulting distonic diphosphane radical cations disproportionate readily into a dication and a diphosphane; the former separates into two phosphenium cations. Key Words: Diphosphanes / Cyclic voltammetry / Calculations, MNDO, ab initio