705288-11-5

Basic information

• Product Name: 2,2',5,5'-tetraphenyl-1,1'-bisphosphole
• Synonyms: 2,2',5,5'-tetraphenyl-1,1'-bisphosphole
• CAS NO: 705288-11-5
• Molecular Weight: 578.673
• Mol File: 705288-11-5.mol

Chemical Properties

• CAS DataBase Reference: 2,2',5,5'-tetraphenyl-1,1'-bisphosphole(CAS DataBase Reference)
• NIST Chemistry Reference: 2,2',5,5'-tetraphenyl-1,1'-bisphosphole(705288-11-5)
• EPA Substance Registry System: 2,2',5,5'-tetraphenyl-1,1'-bisphosphole(705288-11-5)

Safety Data

• Hazardous Substances Data: 705288-11-5(Hazardous Substances Data)

Upstream product

• 13225-62-2 1,8-diphenyl-1,7-octadiyne 

Downstream Products

• 869373-35-3 [Fe(C₅H₅)(PC₂(C₆H₅)2C₆H₈)] 
• 869373-37-5 [Fe(PC₂(C₆H₅)2C₆H₈)2] 

Relevant articles and documents

Connecting π-Chromophores by σ-P-P Bonds: New Type of Assemblies Exhibiting σ-π-Conjugation

To study the ability of σ-P-P skeleton to mediate interaction between π-chromophores, 1,1′-biphospholes bearing phenyl or thienyl substituents at the 2,2′ and 5,5′-position have been prepared and studied. These air-stable derivatives are readily available via a one-pot synthesis starting from diynes. Theoretical studies and UV-vis data clearly establish that the two π-systems interact via the σ-P-P bridge. This through-bond interaction results in a lowering of the optical HOMO-LUMO gap of the assemblies. The nucleophilic σ3-P centers of these 1,1′-biphospholes allow chemical modifications of the σ-bridge. These modifications offer further tuning of the optical properties of the assembly. Electrooxidation of the thienyl-substituted 1,1′-biphosphole results in electroactive materials characterized by low optical band gap and reversible p-doping.