Electronic structure and luminescence of[(CH3)4N]2

Pressure effects on the electronic and optical properties ofAWO4wolframites (A =

“…45 In Table II we report the experimental and estimated band values, together with the estimated crystal field at ambient conditions and their pressure coefficients. There can be observed that the obtained pressure derivatives for n1 and n2 are much larger than those obtained previously for tetrahedrally coordinated Mn 2+ , 46 as well as happens for the crystal field. It is interesting to remark that according to the estimated pressure dependence of the crystal field, a spin crossover transition would take place for MnWO 4 at 47 GPa, which is a pressure larger than the transition pressure of the structural transformation known to take place at 25 GPa from Raman studies.…”

Intense photo- and tribo-luminescence of three tetrahedral manganese(ii) dihalides with chelating bidentate phosphine oxide ligand

“…Compounds with Mn 2+ in a 20 tetrahedral environment usually give out green emissions [1][2][3][4] , while those with octahedrally coordinated Mn 2+ tend to have orange to red emissions [5][6][7][8] . A well-known kind of Mn 2+ based brilliant green emitters are salt-like compounds constructed by inorganic tetrahalogenomanganate(II) anions and organic 25 cations, 2,[9][10][11] which might be promising light-emitting materials for use in cathode-ray tubes, fluorescent tubes, X-ray imaging screens and radiation detectors.…”

“…A well-known kind of Mn 2+ based brilliant green emitters are salt-like compounds constructed by inorganic tetrahalogenomanganate(II) anions and organic 25 cations, 2,[9][10][11] which might be promising light-emitting materials for use in cathode-ray tubes, fluorescent tubes, X-ray imaging screens and radiation detectors. 11 Besides, the crystals of these compounds with non-centrosymmetric space group show fascinating characteristic triboluminescence 2,9,10,12 and pressure- 30 dependent photoluminescence 1,13 . However, most of these compounds are easily hydrolyzed by water in air and their emissions are drastically quenched when the temperature raises up to the point (usually bellow 100℃) at which the solid-solid phase transition or melting occurs 2, 10, 11,14 .…”

Manganese(II) Thiocyanate Complexes with Bis(phosphine Oxide) Ligands: Synthesis and Excitation Wavelength‐Dependent Multicolor Luminescence

“…Since the latter are mutually adjacent within [Mn@O 4 N 2 ] octahedra, complex 1 can be considered as cis-isomer. One of the N- (14); O4-Mn1-O1 165.11 (5), N2-Mn1-O2 177.49 (7), N1-Mn1-O3 174.63 (7). 1D structure of CP 2 is represented by zig-zag chains built up by alternating Mn II (NCS) 2 and Mn III (NCS) 3 (Figure 3 and Figure 4) that differ only by middle atom in the ligand chains (CH 2 vs. C=CH 2 , accordingly).…”

“…The classical cases are represented by octahedral (O h ) and tetrahedral (T d ) ligand fields, in which Mn 2+ ion emits in red (610-660 nm) and green (510-560 nm) regions, respectively. [1][2][3] For example, the commonly known halomanganates [MnHal 4 ] 2display green luminescence, [4][5][6][7][8][9][10][11][12][13][14][15] while the complexes of results in formation of mixed-valent chain CP [Mn II Mn III -(L2) 3 (NCS) 5 ] n . Complex [Mn(L4) 2 (NCS) 2 ] and CP [Mn(L6) 2 -(NCS) 2 ] n display unique dual luminescence, i.e.…”