Aufsatz in einer Fachzeitschrift
Optimized Synthesis of
Tetrafluoroterephthalic Acid: A Versatile Linking Ligand for the
Construction of New Coordination Polymers and Metal-Organic Frameworks.




Details zur Publikation
Autor(inn)en:
Orthaber, A.; Seidel, C.; Belaj, F.; Albering, J.; Pietschnig, R.; Ruschewitz, U.
Verlag:
American Chemical SocietyDO - 10.1021/ic1009829
Publikationsjahr:
2010
Zeitschrift:
Inorganic Chemistry
Seitenbereich:
9350-9357
Jahrgang/Band:
49
Erste Seite:
9350
Letzte Seite:
9357
ISSN:
0020-1669

Zusammenfassung, Abstract
Pure 2,3,5,6-tetrafluoroterephthalic acid (H2tfBDC) is obtained in high yields (95%) by reacting 1,2,4,5-tetrafluorobenzene with a surplus (>2 equiv) of n-butyllithium in THF and subsequent carbonation with CO2 without any extensive purifn. procedure. A single crystal X-ray structure anal. of H2tfBDC (1) confirms former data obtained for a deuterated sample (P̅, Z = 1). Recrystn. from water/acetone leads to single crystals of H2tfBDC·2H2O (2, P21/c, Z = 2), where an extensive hydrogen bonding network is found. By reacting H2tfBDC with an aq. ammonia soln., single crystals of (NH4)2tfBDC (3, C2/m, Z = 2) are obtained. 3 Is thermally stable up to 250 °C and shows an enhanced soly. in water compared to H2tfBDC. Monosubstituted 2,3,5,6-tetrafluorobenzoic acid (H2tfBC, 4) is obtained by reacting 1,2,4,5-tetrafluorobenzene with stoichiometric amts. (1 equiv) of n-butyllithium in THF. Its crystal structure (Fdd2, Z = 16) shows dimeric units as characteristic structural feature. [on SciFinder(R)]


Schlagwörter
fluoroterephthalic acid prepn crystallog hydrogen bond


Autor(inn)en / Herausgeber(innen)

Zuletzt aktualisiert 2019-25-07 um 10:14