Highly luminescent half-lantern cyclometalated platinum(II) complex: synthesis, structure, luminescence studies, and reactivity

Inorganic Chemistry
Violeta SiciliaHenk Bolink

Abstract

The half-lantern compound [{Pt(bzq)(μ-C(7)H(4)NS(2)-κN,S)}(2)]·Me(2)CO (1) was obtained by reaction of equimolar amounts of potassium 2-mercaptobenzothiazolate (KC(7)H(4)NS(2)) and [Pt(bzq)(NCMe)(2)]ClO(4). The Pt(II)···Pt(II) separation in the neutral complex [{Pt(bzq)(μ-C(7)H(4)NS(2)-κN,S)}(2)] is 2.910 (2) Å, this being among the shortest observed in half-lantern divalent platinum complexes. Within the complex, the benzo[h]quinoline (bzq) groups lie in close proximity with most C···C distances being between 3.3 and 3.7 Å, which is indicative of significant π-π interactions. The reaction of 1 with halogens X(2) (X(2) = Cl(2), Br(2), or I(2)) proceeds with a two-electron oxidation to give the corresponding dihalodiplatinum(III) complexes [{Pt(bzq)(μ-C(7)H(4)NS(2)-κN,S)X}(2)] (X = Cl 2, Br 3, I 4). Their X-ray structures confirm the retention of the half-lantern structure and the coordination mode of the bzq and the bridging ligand μ-C(7)H(4)NS(2)-κN,S. The Pt-Pt distances (Pt-Pt = 2.6420(3) Å 2, 2.6435(4) Å 3, 2.6690(3) Å 4) are shorter than that in 1 because of the Pt-Pt bond formation. Time dependent-density functional theory (TD-DFT) studies performed on 1 show a formal bond order of 0 between the metal atoms, with the 6p(z...Continue Reading

References

Feb 17, 2006·Dalton Transactions : an International Journal of Inorganic Chemistry·Albert PoaterAntoni Llobet
Jul 13, 2006·Dalton Transactions : an International Journal of Inorganic Chemistry·Fenghui LiuDaqi Wang
Jul 29, 2006·Angewandte Chemie·Yinghui SunChi-Ming Che
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Apr 7, 2011·Dalton Transactions : an International Journal of Inorganic Chemistry·Lars HollandBernhard Lippert

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Citations

Sep 6, 2012·Inorganic Chemistry·Justin J Wilson, Stephen J Lippard
Jun 8, 2017·Dalton Transactions : an International Journal of Inorganic Chemistry·Hendrik Leopold, Thomas Strassner
Mar 18, 2015·Dalton Transactions : an International Journal of Inorganic Chemistry·Violeta SiciliaJosé M Casas
Nov 18, 2015·Chemistry : a European Journal·Masako KatoAtsushi Kobayashi
Mar 14, 2019·Chemistry : a European Journal·Masaki YoshidaMasako Kato
Apr 3, 2020·Chemistry : a European Journal·Eugenе A KatlenokVadim Yurievich Kukushkin
Oct 11, 2013·Dalton Transactions : an International Journal of Inorganic Chemistry·Jun NiJian-Jun Zhang
Sep 11, 2012·Dalton Transactions : an International Journal of Inorganic Chemistry·Zhe WangT S Andy Hor
Oct 3, 2018·Chemistry : a European Journal·Lorenzo ArnalVioleta Sicilia
Oct 18, 2019·Journal of Biological Inorganic Chemistry : JBIC : a Publication of the Society of Biological Inorganic Chemistry·Ana Luiza de Andrade QuerinoHeveline Silva
Jan 18, 2018·Inorganic Chemistry·Abdollah NeshatBehrouz Notash
Apr 1, 2020·Journal of the American Chemical Society·Xiugang WuPi-Tai Chou

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