Water Stability Studies of Hybrid Iodoargentates Containing N-Alkylated or N-Protonated Structure Directing Agents: Exploring Noncentrosymmetric Hybrid Structures

Abstract

In situ alkylation or protonation reactions on the thiazolyl-N donors of benzothiazole (btz) and its derivative 2-aminobenzothiazole (abtz) occurred to form four structure directing agents (SDAs), which feature different structure directing abilities and hydrophobicities. The thiazolyl-N alkylated and protonated btz cations direct to form an α-type (AgI) iodoargentate chain in (Etbtz)(AgI) (1), (Prbtz)(AgI) (2), and (Hbtz)(AgI) (3), respectively, while the thiazolyl-N protonated abtz cation directs to form a new type of (AgI) anionic chain in (Habtz)(AgI) (4). Compounds 1 and 4 represent the first noncentrosymmetric (NCS) hybrid iodoargentates with organic S-containing N-heterocycle derivative cations as SDAs. Further, 1 exhibits high water stability and is second harmonic generation (SHG) active with a response about twice that of KDP (KHPO). Importantly, the water stability studies indicate that hybrid iodoargentates with hydrophobic N-alkylated SDAs are more stable in water than those with relative hydrophilic N-protonated SDAs.

Structure‐Dependent Photochromic Iodoargentate Hybrids Based on Photolytic Mechanism

“…The asymmetric unit contains one silver(I) atom, two iodine atoms together with one N , N′ ‐dimethylbenzimidazolium (MBI + ) (Figure S2). Inorganic moiety is featured as typical 1D [AgI 2 ] n n− chain as the mostly reported, which is chargely balanced by MBI + cations (Figure S3).…”

Hybrid Copper Iodide Cluster-Based Pellet Sensor for Highly Selective Optical Detection of o-Nitrophenol and Tetracycline Hydrochloride in Aqueous Solution

“…According to our previous studies, the strong interactions between materials and external water molecules, typically donor–H···O strong hydrogen bonds (donor = N, O, S from hybrid materials, O from external water) will decrease the water stability of a material . In this case, the excellent water stability of UJN-Cu2 is ascribed to two structural features: (1) ETBT is a “hydrogen-bond-free” ligand .…”

Double Free: A Promising Route toward Moisture-Stable Hypotoxic Hybrid Perovskites

“…24,[40][41] However, the organic countercations employed therein are hydrophilic protonated amine-type cations or heteroaromatic cations with strong hydrophilic groups (typically -NH 3 + , =NH 2 + or NH + ), which could form strong N-H•••O hydrogen bond with external water molecules, thereby greatly reducing the moisture stability of OHPs. 23,[42][43][44][45][46] This inference is supported by the computational simulation of the decomposition mechanism, which demonstrates that the hydrogen bond interactions between external water molecules and organic countercations This article presented here has been accepted for publication in CCS Chemistry and is posted at the © 2021 Chinese Chemical Society.…”