000148351 001__ 148351
000148351 005__ 20250116161254.0
000148351 0247_ $$2doi$$a10.1002/chem.201404058
000148351 0248_ $$2sideral$$a114337
000148351 037__ $$aART-2014-114337
000148351 041__ $$aeng
000148351 100__ $$aWoodall, Christopher H.
000148351 245__ $$aTunable Trimers: Using Temperature and Pressure to Control Luminescent Emission in Gold(I) Pyrazolate-Based Trimers
000148351 260__ $$c2014
000148351 5060_ $$aAccess copy available to the general public$$fUnrestricted
000148351 5203_ $$aA systematic investigation into the relationship between the solid-state luminescence and the intermolecular AuAu interactions in a series of pyrazolate-based gold(I) trimers; tris(μ<inf>2</inf>-pyrazolato-N, N'')-tri-gold(I) (1), tris(μ<inf>2</inf>-3, 4, 5- trimethylpyrazolato-N, N'')-tri-gold(I) (2), tris(μ<inf>2</inf>-3-methyl-5- phenylpyrazolato-N, N'')-tri-gold(I) (3) and tris(μ<inf>2</inf>-3, 5-diphenylpyrazolato- N, N'')-tri-gold(I) (4) has been carried out using variable temperature and high pressure X-ray crystallography, solid-state emission spectroscopy, Raman spectroscopy and computational techniques. Single-crystal X-ray studies show that there is a significant reduction in the intertrimer AuAu distances both with decreasing temperature and increasing pressure. In the four complexes, the reduction in temperature from 293 to 100 K is accompanied by a reduction in the shortest intermolecular AuAu contacts of between 0.04 and 0.08 The solid-state luminescent emission spectra of 1 and 2 display a red shift with decreasing temperature or increasing pressure. Compound 3 does not emit under ambient conditions but displays increasingly red-shifted luminescence upon cooling or compression. Compound 4 remains emissionless, consistent with the absence of intermolecular AuAu interactions. The largest pressure induced shift in emission is observed in 2 with a red shift of approximately 630 cm<sup>-1</sup> per GPa between ambient and 3.80 GPa. The shifts in all the complexes can be correlated with changes in AuAu distance observed by diffraction.
000148351 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000148351 590__ $$a5.731$$b2014
000148351 591__ $$aCHEMISTRY, MULTIDISCIPLINARY$$b22 / 154 = 0.143$$c2014$$dQ1$$eT1
000148351 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000148351 700__ $$0(orcid)0000-0003-1812-3175$$aFuertes, Sara
000148351 700__ $$aBeavers, Christine M.
000148351 700__ $$aHatcher, Lauren E.
000148351 700__ $$aParlett, Andrew
000148351 700__ $$aShepherd, Helena J.
000148351 700__ $$aChristensen, Jeppe
000148351 700__ $$aTeat, Simon J.
000148351 700__ $$aIntissar, Mourad
000148351 700__ $$aRodrigue-Witchel, Alexandre
000148351 700__ $$aSuffren, Yan
000148351 700__ $$aReber, Christian
000148351 700__ $$aHendon, Christopher H.
000148351 700__ $$aTiana, Davide
000148351 700__ $$aWalsh, Aron
000148351 700__ $$aRaithby, Paul R.
000148351 773__ $$g20, 51 (2014), 16933-16942$$pChemistry (Weinh.)$$tChemistry - A European Journal$$x0947-6539
000148351 8564_ $$s1559997$$uhttps://zaguan.unizar.es/record/148351/files/texto_completo.pdf$$yVersión publicada
000148351 8564_ $$s2922409$$uhttps://zaguan.unizar.es/record/148351/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000148351 909CO $$ooai:zaguan.unizar.es:148351$$particulos$$pdriver
000148351 951__ $$a2025-01-16-14:31:47
000148351 980__ $$aARTICLE