{"id":990,"date":"2021-09-16T21:24:01","date_gmt":"2021-09-16T13:24:01","guid":{"rendered":"http:\/\/polyhedra.cn\/zh\/?p=990"},"modified":"2023-09-10T20:12:54","modified_gmt":"2023-09-10T12:12:54","slug":"lead-free-hybrid-metal-halides-with-a-green-emissive-mnbr4-unit-as-a-selective-turn-on-fluorescent-sensor-for-acetone","status":"publish","type":"post","link":"http:\/\/ustb.cc\/zh\/lead-free-hybrid-metal-halides-with-a-green-emissive-mnbr4-unit-as-a-selective-turn-on-fluorescent-sensor-for-acetone\/","title":{"rendered":"Lead-Free Hybrid Metal Halides with a Green-Emissive [MnBr4] Unit as a Selective Turn-On Fluorescent Sensor for Acetone"},"content":{"rendered":"\n<p><em>Inorg. Chem.<\/em>\u00a02019, 58, 19, 13464\u201313470.<a href=\"https:\/\/pubs.acs.org\/doi\/abs\/10.1021\/acs.inorgchem.9b02374\">https:\/\/pubs.acs.org\/doi\/abs\/10.1021\/acs.inorgchem.9b02374<\/a><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/pubs.acs.org\/na101\/home\/literatum\/publisher\/achs\/journals\/content\/inocaj\/2019\/inocaj.2019.58.issue-19\/acs.inorgchem.9b02374\/20190927\/images\/medium\/ic9b02374_0006.gif\" alt=\"Abstract Image\"\/><\/figure>\n<\/div>\n\n\n<p>Organic\u2013inorganic hybrid metal halides with zero-dimensional (0D) structure has emerged as a new class of light-emitting materials. Herein, a new lead-free compound (C<sub>9<\/sub>NH<sub>20<\/sub>)<sub>2<\/sub>MnBr<sub>4<\/sub>&nbsp;has been discovered and a temperature-dependent phase transition has been identified for two phases (space group&nbsp;<em>P<\/em>2<sub>1<\/sub>\/<em>c<\/em>&nbsp;and&nbsp;<em>C<\/em>2\/<em>c<\/em>) in which individual [MnBr<sub>4<\/sub>]<sup>2\u2013<\/sup>&nbsp;anions connect with organic cations, (C<sub>9<\/sub>NH<sub>20<\/sub><sup>+<\/sup>) (1-buty-1-methylpyrrolidinium<sup>+<\/sup>), forming periodic structure with 0D blocks. A green emission band, peaking at 528 nm with a high photoluminescence quantum efficiency (PLQE) of 81.08%, has been observed at room temperature, which is originated from the&nbsp;<sup>4<\/sup>T<sub>1<\/sub>(G) to&nbsp;<sup>6<\/sup>A<sub>1<\/sub>&nbsp;transition of tetrahedrally coordinated Mn<sup>2+<\/sup>&nbsp;ions, as also elaborated by density functional theory calculation. Accordingly, a fast, switchable, and highly selective fluorescent sensor platform for different organic solvents based on the luminescence of (C<sub>9<\/sub>NH<sub>20<\/sub>)<sub>2<\/sub>MnBr<sub>4<\/sub>&nbsp;has been developed. We believe that the hybrid metal halides with high PLQE and the exploration of these as a fluorescence sensor will expand the applications scope of bulk 0D materials for future development.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Inorg. Chem.\u00a02019, 58, 19, 13464\u201313470.https:\/\/pubs.acs [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[112],"class_list":["post-990","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-112"],"_links":{"self":[{"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/posts\/990","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/comments?post=990"}],"version-history":[{"count":2,"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/posts\/990\/revisions"}],"predecessor-version":[{"id":2498,"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/posts\/990\/revisions\/2498"}],"wp:attachment":[{"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/media?parent=990"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/categories?post=990"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/ustb.cc\/zh\/wp-json\/wp\/v2\/tags?post=990"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}