Inorg Chem: Large Pressure-Induced Red Shift of the Luminescence Band Originating from Nonstacked Square-Planar [Pt(SCN)4]2- in a Novel Trimetallic C

- Possible application of Pt NMR??

Inorg. Chem., 45 (6), 2379 -2381, 2006

Large Pressure-Induced Red Shift of the Luminescence Band Originating from Nonstacked Square-Planar [Pt(SCN)4]2- in a Novel Trimetallic Complex
Geneviève Levasseur-Thériault, Christian Reber,* Christophe Aronica, and Dominique Luneau*
Département de Chimie, Université de Montréal, Montréal, Québec H3C 3J7, Canada, and Laboratoire des Multimatériaux et Interfaces (UMR 5615), Université Claude Bernard Lyon 1, Campus de La Doua, 69622 Villeurbanne Cedex, France
Received October 24, 2005

Abstract: Luminescence of the novel trimetallic complex {Pt(SCN)2[(-SCN)Mn(NCS)(bipy)2]2} originates from a d-d transition of the square-planar [Pt(SCN)4]2- moiety. The band maximum shows a red shift of -99 cm-1 kbar-1 under external pressure up to 32 kbar at room temperature. This red shift is comparable to values for crystals where Pt-Pt interaction between stacked complexes is enhanced by pressure, but the crystal structure for the trimetallic complex shows that no metal-metal interaction can occur.