Chemical Sensor Materials Based on Clathrates. Inclusion Compounds of 2,2"™-Bis(9-Hydroxy-9-Fluorenyl) Biphenyl with Organic Solvent Vapors for Coating Applications in Mass Sensitive Devices
Chemical Sensor Materials Based on Clathrates. Inclusion Compounds of 2,2"™-Bis(9-Hydroxy-9-Fluorenyl) Biphenyl with Organic Solvent Vapors for Coating Applications in Mass Sensitive Devices
(EN)
K. Buhlmann,
(EN)
Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Χημείας
(EL)
K. Buhlmann,
(EN)
The solid host compound 2,2'-bis (9-hydroxy-9-fluorenyl)biphenyl 1 enclathrates organic solvent vapours such as acetone, methanol and 1-butanol to give stoichiometric inclusion complexes. Using differential scanning calorimetry (DSC), desorption enthalpies were estimated to 10-20 k J/tool, indicating weak host-guest interactions. Clathrate formations with acetone and methanol are reversible and reproducible, and show a dependence of the mass increase on the solvent concentration in a gas flow. The application of host compound 1 as receptor layer can be important for the future developmen of mass sensors for the determination of organic solvent vapours.
(EN)
