Thallium(I) Acetylacetonate as Building Blocks of Luminescent Supramolecular Architectures
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- 作者：Eduardo J. Ferná ; ndez ; Antonio Laguna ; José ; M. Ló ; pez-de-Luzuriaga ; Miguel Monge ; Manuel Montiel ; M. Elena Olmos ; and Javier Pé ; rez
- 刊名：Organometallics
- 出版年：2004
- 出版时间：February 16, 2004
- 年：2004
- 卷：23
- 期：4
- 页码：774 - 782
- 全文大小：301K
- 年卷期：v.23,no.4(February 16, 2004)
- ISSN：1520-6041
文摘
The heteropolynuclear complexes [AuTlR2]n (R = C6F5, C6Cl5) react with [Tl(acac)] in 1:1or 1:2 molar ratio, leading to products of stoichiometry [AuTl2(acac)(C6Cl5)2] (2) and [AuTl3(acac)2(C6F5)2] (3). The new complexes obtained display Tl2(acac)2 units acting as bridgesbetween linear chains of [AuTl(C6Cl5)2]n in 2 or between [AuTl(C6F5)2] units in 3. In bothstructures, in addition to the Au···Tl interactions, Tl(I)···Tl(I) contacts also appear, whichare considered to be in part responsible for the luminescent behavior. The comparison ofthese properties in solution to that of the starting complex [Tl(acac)] allows us to proposethe presence of Tl(I)···Tl(I) interactions also in solution. TD-DFT calculations show thatTl2(acac)2 units would be responsible for the luminescent behavior of Tl(acac) and complexes2 and 3 in acetonitrile solution.