Synthese von Galliumhydriden aus intramolekular koordinierten Gallanen : Matrixisolation aus ab-initio-Rechnungen

The intramolecularly basecoordinated compounds of the type Me2N(CH2)3GaX2 (X = Cl, Br, N3, Me) undergo gasphasethermolysis in the temperature range between 700 and 1100 °C. The resulting products are trapped in Argon at 15 K using the rare gas matrix-isolation technique. Identification of the thermolysis products was done through the application of IR-spectroscopy. Therefore the measured IR-spectra were compared with calculated ones that based on equilibrium geometries of possible product molecules. These were found with ab-initio-calculation methods. Whereas experiments with X = N3 yields no measurable reactions, the thermolyses of the precursors with X = Cl, Br, Me follows a homogenous schema. Main product of the reaction is the galliummonohydride HGaX2 with X = Cl, Br, Me respectively, formed through an b-hydrogenelimination out of the starting material. The primary product HGaX2 undergoes further reaction in the gas phase resulting in the formation of molecules like H2GaX, GaX3 and GaX.

Grantor dc:publisher

Publikationsserver der RWTH Aachen University

Year dc:date

1999

Author dc:creator

• Sternkicker, Henning

Contributors dc:contributor

• Paetzold, Peter

• info:eu-repo/classification/ddc/540
• Chemie
• Galliumhydride
• Chemische Synthese
• Galliumorganische Verbindungen
• Pyrolyse
• Matrixisolation
• Tieftemperatur
• Matrix-Isolations-Spektroskopie

Statement dc:rights

• info:eu-repo/semantics/openAccess

Language dc:language

ger

Identifier

https://publications.rwth-aachen.de/search?p=id:%22RWTH-CONV-118354%22

OAI record oai:identifier

https://publications.rwth-aachen.de/oai2d?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai%3Apublications.rwth-aachen.de%3A56235