A temperature-triggered triplex bistable switch in a hybrid multifunctional material: [(CH₂)₄N(CH₂)₄]₂[MnBr₄]

Abstract

[ASN]2[MnBr4] is a novel multifunctional-material-integrated compound, which simultaneously exhibits prominent dielectric/NLO/fluorescent triple switching triggered by the thermal/electric/optical signal.

Phosphorescent Manganese(II) Complexes and Their Emerging Applications

“…These complexes also show intensive green phosphorescence with the decay time in microseconds ( Table 2). [26,34,41,49,53,[58][59][60][61][62][63][64][65][66][67][68]44] As shown in Figure 5, Kovalenko et al prepared three manganese(II) complexes (16a-c) bearing 1-benzyl-1-trimethylammonium cation (Bz(Me) 3 N + ) to show the trends in the emission properties. [44] The PL excitation spectra for these complexes are shown in Figure 5a-c.…”

High‐Temperature Reversible Phase Transition and Switchable Dielectric and Semiconductor Properties in a 2D Hybrid [(C3H12N2O)CdCl4]n

“…Besides, the TG‐DTA curves clearly show that 1 can stabilize to 575 K, far beyond the reversible phase transition temperature (Figure S3). It is worth mentioning that this phase transition temperature (390 K) is high more than that of most reported organic‐inorganic hybrids, such as [(CH 3 ) 3 NOH] 2 BiCl 5 (183.5K), [(CH 2 ) 4 N(CH 2 ) 4 ] 2 [MnBr 4 ] (327 K), but slightly lower than that of [cyclohexylmethylammonium] 3 [BiBr 5 ][Br] (401 K) …”

“…Nevertheless, most organic‐inorganic hybrid reversible phase transition materials (OIHPTM) still suffer a few challenges, such as, i) a low phase transition temperature (usually below or in the vicinity of room temperature), however practical applications require higher temperature such as a automatic switch for a mobile phone's baterry, so exploration of switchable materials with high reversible phase transition temperature always is a goal for physicist and chemist;, ii) a single performance, they mainly focused on ferroelectric, switchable dielectric properties, etc. and the other physical properties such as conduct electricity are seldom reported , , .…”

Designing and Constructing a High‐Temperature Molecular Ferroelectric by Anion and Cation Replacement in a Simple Crown Ether Clathrate

“…[30] In general, al ot of molecular compounds usually undergo reversible phase transitions;h owever,t hey can't be ferroelectrics because they have high structural symmetry and cannot produce the polarization. [12,[21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36] Therefore, our strategy is to keep the body structure of this non-ferroelectric phase transition molecular system with tiny local modifications, such molecular tailoring operation may retain the "driving force" of the body structure but reducei ts symmetry to introduce ad ipole moment into such molecular system, and then potentially construct novel ferroelectrics from such non-ferroelectricm olecular compound. In this way,X iong.…”

“…As is known, to be a ferroelectric it must satisfy some basic conditions, i) undergoes a solid reversible phase transition, ii) the ferroelectric should crystallize in the ten polar point groups 1, m , 2, mm 2, 3, 3 m, 4, 4 mm, 6, 6 mm, iii) exists a spontaneous polarization which can be changed by the electric field . In general, a lot of molecular compounds usually undergo reversible phase transitions; however, they can't be ferroelectrics because they have high structural symmetry and cannot produce the polarization . Therefore, our strategy is to keep the body structure of this non‐ferroelectric phase transition molecular system with tiny local modifications, such molecular tailoring operation may retain the “driving force” of the body structure but reduce its symmetry to introduce a dipole moment into such molecular system, and then potentially construct novel ferroelectrics from such non‐ferroelectric molecular compound.…”