Metal-containing crystalline luminescent thermochromic materials

Cuprophilic Interactions in and between Molecular Entities

“…[121] In addition, coordination polymers with cuprophilic interactions show interesting photophysical properties. [122] Whereas short copper(I)c hain complexes [17, have been well documented, the number of long copper(I) chain species is rather limited. [144,154,155] To keep the article within an acceptable frame, the presentR eview summarizes the progress in the characterization of homoatomic metallophilic contacts between coppera toms,e xcluding heteroatomic combinationso fc opper atoms with other metals,w hich has been reviewed by Braunstein and Sculfort.…”

Thermo-responsive light-emitting metal complexes and related materials

“…where ΔE represents the energy gap between the level of the lowest excited state and the overlap point to non-radiative transition states, and k is the Boltzmann constant. 1, 3 For a simple molecular system, the emission intensity (I) is dependent on temperature, considering that I is proportional to ϕ and ϕ is in inverse proportion to k nr according to eqn (2.2),…”

“…In general, four types of readouts are employed to characterize the thermo-responsiveness of materials, including the change of emission intensity, maximum emission wavelength (λ emi ), emission lifetime, and emission polarization (or anisotropy). 1,3 The sensitivity of a particular process is defined as the slope of the readout signal change as a function of temperature, usually expressed as percent change per Kelvin (% K −1 ), which is an important indicator for evaluating temperature-sensitive materials. The intensity-based thermoresponsiveness is the simplest process.…”

“…The variation of temperature may lead to distinct changes of the chemical and physical properties of natural systems and synthetic materials. [1][2][3][4] In particular, thermo-responsive functional materials with specific luminescence changes have attracted wide attention due to their potential applications in temperature sensing, [5][6][7][8][9][10][11][12] biological imaging, [13][14][15][16][17][18][19][20] optoelectronic devices, [21][22][23][24][25] and information processing. [26][27][28] To date, tremendous progress has been made in the development of thermo-responsive light-emitting materials, including various organic dyes and polymers, [29][30][31][32][33][34][35][36][37] metal complexes, [38][39][40][41][42][43][44] metal clusters and metal-organic frameworks (MOFs), [45][46]…”

“…Several reviews focusing on thermo-responsive MOFs and lanthanide or Cu-based clusters have been published recently; [2][3][4]60 however temperature-responsive metal complexes in a broader scope have not been reviewed. We present here a systematic summary and discussion on thermo-responsive metal complexes including small molecular metal complexes, metalligand coordination clusters and polymers, and related multicomponent materials.…”