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

• Autor(es): Silva, Manuela Ramos ; Paixão, José A. ; Beja, Ana Matos ; da Veiga, Luiz Alte
• Data: 2001
• Identificador Persistente: http://hdl.handle.net/10316/5229
• Origem: Estudo Geral - Universidade de Coimbra
• Assunto(s): Diphenylguanidinium fluoride hydrogen fluoride; Diphenylguanidinium bifluoride; Hydrogen bond; X-ray structure determination
• Tipo de Documento: Artigo
• Idioma: Inglês

Descrição

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