The search for ferroelectric materials that have a significant progress in applications, such as ferroelectric field-effect transducers, piezoelectric sensors, nonlinear optical devices, electrocaloric refrigeration, and so forth, remains a great challenge. Here, we report the discovery of two unique molecular ferroelectrics (TMP) 2 (SbX 5 )(SbX 3 ) (TMP = thiomorpholine = (CH 2 ) 4 NH 2 S + , X = Cl (1-Cl), Br (2-Br)), which are the first reported examples of halogenoantimonates(III) and halogenobismuthates(III) with R 2 (MX 5 )(MX 3 )-type zero-dimension (0D) configuration ascribing to the discrete SbX 5 and SbX 3 polyhedrons separated by the TMP cations. (TMP) 2 (SbX 5 )(SbX 3 ) also feature the highest phase transition temperature (T c , in which 362/442 K for 1-Cl and 385/477 K for 2-Br) and giant zero-field entropy change (131.68/109.16 J mol −1 K −1 for 1-Cl and 183.24/150.32 J mol −1 K −1 for 2-Br) in halogenoantimonates(III) and halogenobismuthates(III)-based molecular ferroelectrics. A low thr-coordinated SbX 3 component accelerates the crystallization of (TMP) 2 (SbX 5 )(SbX 3 ) in the noncentrosymmetric structure because it breaks the R 2 MX 5 -type construction. Thus, they exhibit significant room-temperature SHG signals (in which 4.2 × KDP for 1-Cl and 3.8 × KDP for 2-Br) and polarization-dependent SHG response. In addition, ultraviolet−visible absorption and photoluminescence spectra reveal that the band gap is successfully tuned from 3.366 to 2.600 eV for 1-Cl to 2-Br, while emission at 545 nm for 1-Cl is redshifted to 611 nm for 2-Br; both large Stokes shifts and broadband emission characterize the PL of 0D metal halide hybrids and are attributed to the strong coupling of the excitons to multiple phonons. This work will provide an avenue to explore the SHG responses and photoelectric characteristics of lowdimensional halogenoantimonates(III) and halogenobismuthates(III)-based molecular ferroelectrics.

Natural rubber latex (NRL) has prophylactic properties and is used to make pathogen-isolating products like condoms and surgical gloves. However, obtaining NRL and casting it into durable products are challenging. Consequently, progress in the research and development of medical NRL products has been slow. This study aims to strengthen NR and induce it with bactericidal properties. In this regard, we introduce inorganic whiskers into the NRL and synthesize whiskers/NR composites with strong mechanical and antibacterial properties. The method proposed herein is a template method, which can rapidly and efficiently reveal the antibacterial effect of the composite latex, providing convenience for research institutions and factories studying antibacterial latex. A complete system is established for studying the antibacterial medical NRL, and a precedent is set for the relevant products.