Tri-[Pt2Tl]3- and polynuclear chain [Pt-Tl]infinity- complexes based on nonbridged Pt(II)-Tl(I) bonds: solid state and frozen solution photophysical properties

Inorganic Chemistry
Larry R FalvelloIsabel Usón

Abstract

Treatment of (NBu4)2[PtR4] (R = C6F5) with 1 or 0.5 equiv of TlNO3 in EtOH/H(2)O produces colorless crystals of trinuclear complex (NBu4)3[Tl{PtR4}2], 1, in which the Tl+ center is complexed by two [PtR4]2- fragments (Pt-Tl = 2.9777(4) and 3.0434(4) A). The expected mixed complex with a Pt/Tl composition of 1:1, 2, is generated as an orange microcrystalline solid by treating [PtR4]2- with a large excess of TlNO3 (approximately 8 equiv). Crystallographic analysis of 2 reveals the formation of a novel one-dimensional (1D) heterometallic linear chain (NBu4)(infinity)[Tl{PtR4}](infinity), 2, formed by alternating a [PtR4]2- fragment and a Tl+ center with a uniform Pt-Tl bond separation along the chain of 3.0321(2) A. Surprisingly, treatment of (NBu4)2[PtR4] with 1 equiv of TlPF6 in EtOH yields pale greenish-yellow needles of an unusual adduct, 2.{(NBu4)(PF6)}(infinity) (3), which was found to form a similar extended linear chain, {TlPtR4}(infinity), constructed by two alternating Pt-Tl separations, a shorter (3.1028(6) A) one and a longer (3.2306(6) A) one. The solid state and solution photophysical properties have been examined. While complex 1 shows a high-energy MM'CT blue phosphorescence (450 nm), the extended chain in 2 exhibi...Continue Reading

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Citations

Sep 11, 2013·Inorganic Chemistry·Sirous JamaliJordi Benet-Buchholz
Jan 26, 2008·Chemical Communications : Chem Comm·Larry R FalvelloMilagros Tomás
Nov 7, 2014·Chemical Communications : Chem Comm·Holger BraunschweigChristoph Schneider
Mar 28, 2007·Angewandte Chemie·Marie-Madeleine RohmerShie-Ming Peng
Aug 19, 2007·Dalton Transactions : an International Journal of Inorganic Chemistry·Alvaro DíezSergio Sánchez
Mar 11, 2009·Dalton Transactions : an International Journal of Inorganic Chemistry·Juan ForniésElena Lalinde
Feb 19, 2019·Dalton Transactions : an International Journal of Inorganic Chemistry·David CampilloAntonio Martín
Feb 7, 2012·Dalton Transactions : an International Journal of Inorganic Chemistry·Juan ForniésAthanassios C Tsipis
Oct 30, 2013·Dalton Transactions : an International Journal of Inorganic Chemistry·Sirous JamaliDalibor Milic
Jun 5, 2014·Dalton Transactions : an International Journal of Inorganic Chemistry·Úrsula BelíoAntonio Martín
Oct 23, 2008·Dalton Transactions : an International Journal of Inorganic Chemistry·Olesya T IlkunVictor N Nemykin

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