"Two-in-one" organic-inorganic hybrid MnII complexes exhibiting dual-emissive phosphorescence

Dalton Transactions : an International Journal of Inorganic Chemistry
Alexey S BerezinAlexander V Artem'ev

Abstract

Unprecedented organic-inorganic hybrid complexes, [Mn(L)3]MnHal4, containing both four- and hexacoordinated Mn2+ ions were synthesized by reacting MnCl2 or MnBr2 with bis(phosphine oxide) ligands (L) such as dppmO2, dppeO2, and 2,3-bis(diphenylphosphinyl)-1,3-butadiene (dppbO2). In the [Mn(L)3]2+ cation of the complexes, the Mn2+ ion features a [MnO6] octahedral coordination environment (Oh), and the [MnHal4]2- anion adopts a tetrahedral geometry (Td). These "two-in-one" complexes exhibit strong long-lived luminescence (τav = 12-15 ms at 300 K) having interesting thermochromic behavior attributed to the thermal equilibrium between two emission bands. So, in an emission spectrum of the typical complex [Mn(dppbO2)3]MnBr4, the intense "red" (ca. 620 nm) and weak "green" (ca. 520 nm) bands, originating from Mn2+ ions in Oh and Td environments, respectively, are observed. Cooling from 300 to 77 K simultaneously leads to (i) redshift of both bands by ca. 20 nm, (ii) increasing their intensities, and (iii) causing a substantial change of their integral intensity ratio from about 4 : 1 to 2 : 1. As a result, the colour of the emission changes from orange (CIE 0.56, 0.45) at 300 K to deep red (CIE 0.62, 0.39) at 77 K. This behavior was ...Continue Reading

References

Aug 14, 2003·Journal of Nanoscience and Nanotechnology·A G JolyJ Z Zhang
Sep 29, 2005·Journal of Magnetic Resonance·Stefan Stoll, Arthur Schweiger
Feb 6, 2010·Chemistry : a European Journal·Slawomir Pitula, Anja-Verena Mudring
Oct 1, 2011·Chemical Communications : Chem Comm·Vivian Wing-Wah Yam, Keith Man-Chung Wong
Aug 14, 2012·Angewandte Chemie·Rubén D CostaNicola Armaroli
Jun 15, 2013·Angewandte Chemie·Dik-Lung MaChung-Hang Leung
Dec 30, 2014·Acta Crystallographica. Section A, Foundations and Advances·George M Sheldrick
Jan 20, 2015·Dalton Transactions : an International Journal of Inorganic Chemistry·Jun ChenGuo-Cong Guo
Mar 26, 2015·Journal of the American Chemical Society·Yi ZhangRen-Gen Xiong
Apr 1, 2015·Dalton Transactions : an International Journal of Inorganic Chemistry·Yan SuffrenCédric Desroches
May 27, 2015·Advanced Materials·Yi ZhangRen-Gen Xiong
Jul 15, 2015·Chemical Reviews·Vivian Wing-Wah YamSammual Yu-Lut Leung
Mar 10, 2016·Dalton Transactions : an International Journal of Inorganic Chemistry·David HausmannClaus Feldmann
Nov 11, 2017·Dalton Transactions : an International Journal of Inorganic Chemistry·Veerasamy SathishSeenivasan Rajagopal
Jan 13, 2018·Dalton Transactions : an International Journal of Inorganic Chemistry·Alexey S BerezinMark B Bushuev

❮ Previous
Next ❯

Citations

May 28, 2020·Dalton Transactions : an International Journal of Inorganic Chemistry·Marco BortoluzziLuca Pietrobon
Oct 28, 2019·Dalton Transactions : an International Journal of Inorganic Chemistry·Alexander V Artem'evDenis G Samsonenko
Feb 27, 2021·Dalton Transactions : an International Journal of Inorganic Chemistry·Marco BortoluzziJesús Castro
Jun 8, 2021·Dalton Transactions : an International Journal of Inorganic Chemistry·Xiaomeng HuangQiang Zhao
Jul 23, 2020·Journal of the American Chemical Society·Lingling MaoRam Seshadri

❮ Previous
Next ❯

Methods Mentioned

BETA
X-ray

Software Mentioned

EasySpin
SHELXL
MATLAB
CrysAlisPro
SHELXT

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.