F---H···F hydrogen bond in diphenylguanidinium hydrogen bifluoride

• Author(s): Silva, Manuela Ramos ; Paixão, José A. ; Beja, Ana Matos ; da Veiga, Luiz Alte
• Date: 2001
• Persistent ID: http://hdl.handle.net/10316/5229
• Origin: Estudo Geral - Universidade de Coimbra
• Subject(s): Diphenylguanidinium fluoride hydrogen fluoride; Diphenylguanidinium bifluoride; Hydrogen bond; X-ray structure determination
• Document Type: Article
• Language: English

Description

The crystal structure of C13H14N3+FHF- is reported. The structure contains the strong hydrogen-bonded system, the bifluoride anion F---H···F-. The geometry of this anion deviates significantly from linearity but has the H atom in an approximate centered position. The F···F distance is 2.293(3) Å, considerably less than twice the van der Waals radius of fluorine, as expected from a very strong hydrogen bond. http://www.sciencedirect.com/science/article/B6TGD-423HKRV-N/1/b518b985ecb521192bfdbc57a27df65d