Poly-yne polymers containing transition metals are an interesting class of materials for their chemical and physical properties. In order to better understand the properties of such materials, a good knowledge of their structure is necessary. In this study we have determined the local structure around Pd in Pd-diethynylbiphenyl (Pd-DEBP, [Pd(PBU3)(2)C16H4](n)) polymer containing a diethynylbiphenyl unit as the organic spacer. Thin films of the material were deposited onto a Cr substrate and were studied by means of extended X-ray absorption structure spectroscopy (EXAFS) in total reflection mode. The bond lengths between Pd and its neighbors as well as the C-C distances in the linear chain are determined and compared with literature data reported for model complexes. (C) 2004 Elsevier B.V. All rights reserved.
Structure of a monolayer of Pd-diethynylbiphenyl deposited on chromium studied by total reflection EXAFS / F., D'Acapito; Fratoddi, Ilaria; R., D'Amato; Russo, Maria Vittoria; G., Contini; I., Davoli; S., Mobilio; G., Polzonetti. - In: SENSORS AND ACTUATORS. B, CHEMICAL. - ISSN 0925-4005. - 100:1-2(2004), pp. 131-134. (Intervento presentato al convegno Symposium on New Materials and Technologies in Sensor Applications tenutosi a Strasbourg, FRANCE nel JUN 10-13, 2003) [10.1016/j.snb.2003.12.032].
Structure of a monolayer of Pd-diethynylbiphenyl deposited on chromium studied by total reflection EXAFS
FRATODDI, Ilaria;RUSSO, Maria Vittoria;
2004
Abstract
Poly-yne polymers containing transition metals are an interesting class of materials for their chemical and physical properties. In order to better understand the properties of such materials, a good knowledge of their structure is necessary. In this study we have determined the local structure around Pd in Pd-diethynylbiphenyl (Pd-DEBP, [Pd(PBU3)(2)C16H4](n)) polymer containing a diethynylbiphenyl unit as the organic spacer. Thin films of the material were deposited onto a Cr substrate and were studied by means of extended X-ray absorption structure spectroscopy (EXAFS) in total reflection mode. The bond lengths between Pd and its neighbors as well as the C-C distances in the linear chain are determined and compared with literature data reported for model complexes. (C) 2004 Elsevier B.V. All rights reserved.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
