ISSN:
0044-2313
Keywords:
Organoindium compound
;
organothallium compound
;
crystal structures
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Synthesis and Properties of Trimesitylthallium. A Comparison of the Trimesitylelement Compounds of Group 13The reaction of T1C13 with MesMgBr (Mes = 2,4,6-Me3C6H2) in THF at 0°C gives trimesitylthallium, TlMes3 (2). 2 has been characterized with NMR, IR and MS techniques as well as by an X-ray structure determination. 2 crystallizes isostructural to InMes3 (1a). The molecules of 2 are coordinated by the three mesityl substituents in a planar fashion. A new modification of InMes3 (1b) could be obtained by recrystallization of InMes3 from toluene/n-pentane in the space group C2/c. The literature known modification 1a and the new metallane 2 crystallize in the space group P21/n. The molecules in 1b possess C2-symmetry. The trimesitylelement compounds EMes3 (E = B, A1, Ga, In, T1) have been compared with each other.
Notes:
Die Reaktion von TlCl3 mit MesMgBr (Mes = 2,4,6-Me3C6H2) in THE bei 0°C liefert Trimesitylthallium, TlMes3 (2). 2 wurde mittels NMR- und IR-Spektroskopie bzw. Massenspektrometrie untersucht. Die Röntgenstrukturanalyse ergab ein isostrukturell zu InMes3 (1 a) kristallisierendes Molekül, dessen Tl-Zentrum planar von den drei Mesitylsubstituenten umgeben ist. Durch Kristallisation aus Toluol/n-Pentan konnte eine neue Modifikation des In-Mes3 (1 b) erhalten werden, die im Gegensatz zu 1 a und 2 (P21/n) in der Raumgruppe C2/c kristallisiert, wobei die Moleküle von 1 b C2-Symmetrie besitzen. Die Trimesitylelement-Verbindungen EMes3 (E = B, Al, Ga, In, Tl) werden miteinander verglichen.
Additional Material:
5 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/zaac.19976230150
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