Extreme Pressure-Induced Shifts of Emission Energies in M[Au(CN)2] and M2[Pt(CN)4].cntdot.nH2O. Compounds with Low-Dimensional and Metal-Metal Interactions

Hingeless Negative Linear Compression in the Mechanochromic Gold Complex [(C6F5Au)2(μ‐1,4‐diisocyanobenzene)]

“…The spectra with maxima at about 650 nm at ambient pressure has previous been identified as a π–π* transition 7a. A shift to lower energy is observed as pressure increases to about 700 nm at 2.90 GPa, equating to a peak shift of 440+/−20 cm −1 GPa −1 , which is less than half the typical literature values for systems where aurophilic interactions are photophyiscally important 11. It may be concluded that the observed shift with increasing pressure is consistent with conformational changes within the molecules rather than changes in interauric distances.…”

Characterization of excited electronic and vibronic states of platinum metal compounds with chelate ligands by highly frequency-resolved and time-resolved spectra

“…More recently, within the last one or two decades, it has become apparent that these complexes exhibit an enormous potential for new applications due to their photophysical and photochemical properties. For example, systems involving photo-redox processes for solar energy conversion [4][5][6][7][8][9][10][11], photovoltaic devices [12,13], molecular photodiodes [14] or chemical synthesis [15], information storage systems [16], highly sensitive chemical sensors [17,18] and biosensors [ 19 -22], low-dimensional semiconductors with extreme tunabilities of optical transitions under high pressure [23,24], and supramolecular systems with user-defined photophysical properties [25,26] have already been explored or are under current investigation. All of these properties and possible applications are related to the characteristics of the lowest excited states.…”

Tunable excited state energy transfer in [

“…This is due to the formation of excimers and exciplexes, excited state interactions between the AgðCNÞ À 2 ions, that can be selectively excited with different wavelengths of light [6][7][8][9][10]. Crystals of the type R½AuðCNÞ 2 3 have emission energies that can be tuned by changing the pressure or temperature [1,11,12]. The emission in this case red-shifts with decreasing temperature or increasing pressure.…”