Two-dimensional networks based on Mn4 complex linked by dicyanamide anion: from single-molecule magnet to classical magnet behavior

Journal of the American Chemical Society
Hitoshi MiyasakaRodolphe Clérac

Abstract

Three two-dimensional (2D) network compounds based on Mn(III)/Mn(II) tetranuclear single-molecule magnets (SMMs) connected by dicyanamide (dcn-) linkers have been synthesized: [Mn4(hmp)4(Hpdm)2(dcn)2](ClO4)2 x 2 H2O x 2 MeCN (2), [Mn4(hmp)4Br2(OMe)2(dcn)2] x 0.5 H2O x 2 THF (3), [Mn4(hmp)6(dcn)2](ClO4)2 (4), where Hhmp and H2pdm are 2-hydroxymethylpyridine and pyridine-2,6-dimethanol, respectively. The [Mn4]/dcn- system appears very versatile, but enables its chemistry to be rationalized by a fine-tune of the synthetic conditions. The double cuboidal [Mn4] unit is preserved in the whole family of compounds, despite strong modifications of its Mn(II) coordination sphere. The chemical control of the coordination number of dcn- on the Mn(II) sites has been the key to obtain the following series of compounds: a discrete cluster, [Mn4(hmp)6(NO3)2(dcn)2] x 2 MeCN (1), 2D networks (2, 3, and 4), and the previously reported 3D compound, [Mn4(hmp)4(mu3-OH)2][Mn(II)(dcn)6] x 2 MeCN x THF. Direct current magnetic measurements show that both Mn2+-Mn3+ and Mn3+-Mn3+ intra-[Mn4] magnetic interactions are ferromagnetic leading to an S(T) = 9 ground state for the [Mn4] unit. Despite the very similar 2D lattices in 2-4, the two kinds of orienta...Continue Reading

References

May 13, 1996·Physical Review Letters·J R FriedmanR Ziolo
Feb 24, 2001·Inorganic Chemistry·J YooD N Hendrickson
Mar 23, 2001·Inorganic Chemistry·P M van der WerffK S Murray
Apr 12, 2001·Nature·M N Leuenberger, D Loss
Aug 21, 2001·Inorganic Chemistry·J YooD N Hendrickson
Nov 22, 2002·Physical Review Letters·W WernsdorferG Christou
Jan 28, 2003·Angewandte Chemie·Dante Gatteschi, Roberta Sessoli
May 10, 2005·Inorganic Chemistry·Jae YooDavid N Hendrickson
Aug 11, 2005·Journal of the American Chemical Society·Lollita LecrenRodolphe Clérac
Aug 11, 2005·Physical Review Letters·W WernsdorferG Christou

❮ Previous
Next ❯

Citations

Feb 2, 2008·Dalton Transactions : an International Journal of Inorganic Chemistry·Lollita LecrenRodolphe Clérac
Jan 11, 2007·Dalton Transactions : an International Journal of Inorganic Chemistry·Hitoshi Miyasaka, Masahiro Yamashita
Jun 9, 2015·Dalton Transactions : an International Journal of Inorganic Chemistry·Moumita PaitDebashis Ray
Mar 25, 2016·Dalton Transactions : an International Journal of Inorganic Chemistry·M SobocińskaT Lis
Oct 21, 2016·Dalton Transactions : an International Journal of Inorganic Chemistry·Lei ZhangWolfgang Schmitt
Nov 5, 2014·Dalton Transactions : an International Journal of Inorganic Chemistry·Goulven CosquerMasahiro Yamashita
Nov 28, 2014·Dalton Transactions : an International Journal of Inorganic Chemistry·Lei QinYan-Zhen Zheng
Oct 26, 2016·Dalton Transactions : an International Journal of Inorganic Chemistry·J CampoM Tomás
Dec 4, 2015·Dalton Transactions : an International Journal of Inorganic Chemistry·Zhi ChenBin Zhao
Jan 21, 2015·Dalton Transactions : an International Journal of Inorganic Chemistry·Xin-Yi CaoRaphael G Raptis
Jun 7, 2018·Physical Chemistry Chemical Physics : PCCP·J Mejía-LópezJ Mazo-Zuluaga
Nov 16, 2011·Chemistry : a European Journal·Thomas B FaustRichard E P Winpenny
Nov 15, 2018·Dalton Transactions : an International Journal of Inorganic Chemistry·Zu-Zhen ZhangChen-I Yang
Oct 31, 2006·Angewandte Chemie·Eleni E MoushiAnastasios J Tasiopoulos
Apr 10, 2008·Dalton Transactions : an International Journal of Inorganic Chemistry·Zhao-Xi WangXiao-Zeng You
Mar 19, 2008·Chemistry : a European Journal·Valeriu MereacreAnnie K Powell
Dec 4, 2008·Dalton Transactions : an International Journal of Inorganic Chemistry·David R TurnerStuart R Batten
Mar 26, 2009·Dalton Transactions : an International Journal of Inorganic Chemistry·Pablo Alborés, Eva Rentschler
May 8, 2009·Dalton Transactions : an International Journal of Inorganic Chemistry·Ai-Ju ZhouMing-Liang Tong
Apr 16, 2011·Dalton Transactions : an International Journal of Inorganic Chemistry·Pablo Alborés, Eva Rentschler
Apr 14, 2011·Dalton Transactions : an International Journal of Inorganic Chemistry·Kyle W GallowayMark Murrie
Apr 14, 2011·Dalton Transactions : an International Journal of Inorganic Chemistry·Ie-Rang JeonRodolphe Clérac

❮ Previous
Next ❯

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.