Accession Number:

ADA505435

Title:

Non-Porous Organic Solids Capable of Dynamically Resolving Mixtures of Diiodoperfluoroalkanes (Postprint)

Descriptive Note:

Journal article

Corporate Author:

POLITECNICO DI MILANO (ITALY)

Personal Author(s):

• Metrangolo, Pierangelo
• Carcenac, Yvan
• Resnati, Giuseppe
• Lahtinen, Manu
• Rissenen, Kari
• Pilati, Tullio
• Vij, Ashwani

Report Date:

2009-03-13

Pagination or Media Count:

6.0

Abstract:

A well-known class of organic non-porous compounds, polymethylene bismethonium iodides, undergoes selective capture and release of a,w-diiodoperfluoroalkanes in a dynamic and controlled manner, in solution and from the gas phase. Despite a lack of porosity of the starting materials, guest transport through the solid occurs readily until a thermodynamically stable porous structure is achieved, which is highly selective only to the convenient diiodoperfluoroalkane. The size matching between the intercharge distance in the cation and the charge separation in the halogen-bonded I-...ICF2mI...I- superanion drives the selectivity of the process, which identifies the target diiodoperfluoroalkane even from complex industrial mixtures. The full reversibility of the process where diiodoperfluoroalkanes can first be selectively complexed and then quantitatively evacuated, yields pure fluorinated telomers and reusable decamethonium congeners.

Descriptors:

• *MOLECULE MOLECULE INTERACTIONS
• *SALTS
• FLUORINATED HYDROCARBONS
• ANIONS
• CRYSTALLIZATION
• REPRINTS
• LATTICE DYNAMICS

Subject Categories:

• Organic Chemistry
• Physical Chemistry
• Crystallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE