Reversible vapochromism in the NIR region is achieved for a mixed-valence platinum complex with lipid counterions, from which exclusion of crystallization water by organic vapor alters the lipid molecular orientation, which amplifies the information to changes in the 1D coordination structure and the electronic state.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1039/d1cc06723k | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Multiple Near-Infrared Chromisms of a Heteromerous Overcrowded Ethylene with Large Permanent Dipole Moment.
Angew Chem Int Ed Engl
January 2025
Osaka University Graduate School of Engineering Science School of Engineering Science: Osaka Daigaku Daigakuin Kiso Kogaku Kenkyuka Kiso Kogakubu, Department of Materials Engineering Science, Machikaneyama 1-3, 560-8531, Toyonaka, JAPAN.
An overcrowded ethylene composed of electron-donating anion, naphthoxide, and electron-accepting cation, acridinium, has been synthesized. It is in equilibrium between a folded conformer having a smaller permanent dipole moment with visible light absorption and a twisted conformer having a larger permanent dipole moment with NIR light absorption. The overcrowded ethylene shows multiple NIR chromisms, such as solvatochromism, thermochromism, mechanochromism, vapochromism, halochromism, and amphoteric electrochromisms, which are caused by the conformational change between folded and twisted conformers or by controlling the energy difference between the HOMO of the donor moiety and the LUMO of the acceptor moiety.
View Article and Find Full Text PDFOn-Demand Control of Short-Wave Infrared Light Transparency Based on Stimuli-Responsive Association of Tetrathiafulvalene Radical Cations.
Angew Chem Int Ed Engl
August 2023
Department of Chemistry, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan.
The light-transmissive properties of a solid-state tetrathiafulvalene radical cation-bis(trifluoromethanesulfonyl)imide, 1-C ⋅ ⋅ NTf , underwent instantaneous changes in the short-wave infrared (SWIR) region (1000-2500 nm) upon exposure to solvent vapor or the application of mechanostress at room temperature. The initial solid state of 1-C ⋅ ⋅ NTf exhibited strong absorption in the near-infrared (NIR; 700-1000 nm) and SWIR regions, whereas the absorption in the SWIR region was significantly diminished in the stimulated state induced by dichloromethane vapor. Upon cessation of vapor stimulation, the solid state spontaneously and promptly reverted to its original state, characterized by absorption bands in the NIR/SWIR region.
View Article and Find Full Text PDFNear-infrared vapochromism in lipid-packaged mixed-valence coordination polymers.
Chem Commun (Camb)
February 2022
Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka Nishi-ku, Fukuoka 819-0395, Japan.
Reversible vapochromism in the NIR region is achieved for a mixed-valence platinum complex with lipid counterions, from which exclusion of crystallization water by organic vapor alters the lipid molecular orientation, which amplifies the information to changes in the 1D coordination structure and the electronic state.
View Article and Find Full Text PDFDevelopment of Ion-Conductive and Vapoluminescent Porous Coordination Polymers Composed of Ruthenium(II) Metalloligand.
Inorg Chem
March 2017
Department of Chemistry, Faculty of Science, Hokkaido University, North-10 West-8, Kita-ku, Sapporo, Hokkaido 060-0810, Japan.
We synthesized two new porous coordination polymers (PCPs) {Ln(OH)[Ru(dcbpy)]·4nHO} (Ln-Ru; Ln = Ce, Nd) composed of the luminescent ruthenium(II) metalloligand [Ru(4,4'-dcbpy)] ([4Ru]; 4,4'-dcbpy = 4,4'-dicarboxy-2,2'-bipyridine) and lanthanide ions Ln (Ln = Ce, Nd). These two PCPs Ln-Ru are isomorphous with the previously reported PCP La-Ru, and the lattice constants (a, c, and unit cell volume V) changed systematically according to the lanthanide contraction. All three Ln-Ru compounds have OH anion containing porous structures and a large number of hydrate water molecules within the pores, resulting in moderate ion conductivities (10-10 S cm) at 90% relative humidity (RH) and 298 K.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!