126475 20241125101154.0 doi 10.1039/d3fd00025g sideral 133894 ART-2023-133894 eng Bryant, M. J. Structural modifications to platinum(ii) pincer complexes resulting in changes in their vapochromic and solvatochromic properties 2023 Access copy available to the general public Unrestricted There is a need to develop rapidly responsive chemical sensors for the detection of low concentrations of volatile organic solvents (VOCs). Platinum pincer complexes have shown promise as sensors because of their colours and vapochromic and solvatochromic properties, that may be related to the non-covalent interactions between the pincer complexes and the guest VOCs. Here we report an investigation into a series of Pt(II) complexes based on the 1,3-di(pyridine)benzene tridentate (N⁁C⁁N) skeleton with the formula [Pt(N⁁C(R)⁁N)(CN)] (R = C(O)Me 2, C(O)OEt 3, C(O)OPh 4) with the fourth coordination site occupied by a cyanide ligand. Solid-state samples of the complexes have been tested with a range of volatiles including methanol, ethanol, acetone, dichloromethane and water, and while 2 displays thermochromism, 3 and 4 display rapidly reversible vapochromism and solvatochromism. These results are correlated with X-ray powder and single crystal X-ray structural data including an assessment of the crystal packing and the void space in the crystalline space. The cyanide ligand and the R substituents are involved in hydrogen bonding that creates the voids within the structures and interact with the solvent molecules that influence the Pt⋯Pt separation in the crystalline state. info:eu-repo/grantAgreement/EC/FP7/252883/EU/New Switchable Organometallic Oligomers and Polymers/SFL-PRR info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 3.3 2023 CHEMISTRY, PHYSICAL 82 / 178 = 0.461 2023 Q2 T2 0.858 2023 Physical and Theoretical Chemistry 2023 Q1 Medicine (miscellaneous) 2023 Q2 4.9 2023 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Fuertes, S. (orcid)0000-0003-1812-3175 Hatcher, L. E. Thomas, L. H. Raithby, P. R. 244 (2023), 411-433 Faraday discuss. FARADAY DISCUSSIONS 1359-6640 2485560 http://zaguan.unizar.es/record/126475/files/texto_completo.pdf Versión publicada 1476385 http://zaguan.unizar.es/record/126475/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:126475 articulos driver 2024-11-22-12:08:10 ARTICLE