| Title: | Volatile organic compounds sensing properties of tetrakis(alkylthio)-substituted lutetium(III) bisphthalocyanines thin films |
| Author(s): | Kilinc N; Atilla D; Gurek AG; Ozturk ZZ; Ahsen V; |
| Address: | "Department of Physics, Faculty of Science, Gebze Institute of Technology, 41400 Gebze-Kocaeli, Turkey. nkilinc@gyte.edu.tr" |
| DOI: | 10.1016/j.talanta.2009.06.064 |
| ISSN/ISBN: | 1873-3573 (Electronic) 0039-9140 (Linking) |
| Abstract: | "The effect of volatile organic compounds (VOCs) such as acetone, methanol, ethanol, chloroform, carbon tetrachloride, dichloromethane, and hexane on electrical conductivity of thin films of bis[tetrakis(alkylthio)phthalocyaninato]lutetium(III) double decker complexes [(C(n)H(2n+1)S)(4)Pc](2)Lu(III) was investigated. The [(C(n)H(2n+1)S)(4)Pc](2)Lu(III) molecules substituted with different alkylthia chains (n=6, 8, 10, 12, and 16) were coated on interdigital transducers using a jet spray technique. A change (increase or decrease) in the conductivity of the [(C(n)H(2n+1)S)(4)Pc](2)Lu(III) films was observed depending on the concentration of the VOCs, which was ranging from 500 to 5000 ppm. The decrease in the conductivity of the sensors for the dissolvent of the compounds (chloroform, carbon tetrachloride, dichloromethane and hexane) could be related to swelling of the films. On the other hand, the increase in the conductivity of the sensors for the other VOCs (acetone, methanol and ethanol) could be resulted from that the VOCs act as electron donors and/or acceptors in the films. A linear relationship between the sensor response and concentration of the VOC vapors is obtained. The sensitivities of the [(C(n)H(2n+1)S)(4)Pc](2)Lu(III) films were in the range of 2.10(-4)-3.10(-3)%/ppm" |
| Keywords: | "Acetone/chemistry Adsorption Biosensing Techniques/instrumentation/*methods Chloroform/chemistry Electrochemistry Ethanol/chemistry Indoles/*chemistry Isoindoles Lutetium/*chemistry Methanol/chemistry Microscopy, Polarization Molecular Structure Reproduci;" |
| Notes: | "MedlineKilinc, Necmettin Atilla, Devrim Gurek, Ayse Gul Ozturk, Zafer Ziya Ahsen, Vefa eng Research Support, Non-U.S. Gov't Netherlands 2009/09/29 Talanta. 2009 Nov 15; 80(1):263-8. doi: 10.1016/j.talanta.2009.06.064. Epub 2009 Jul 4" |
