Synthesis, structure, and magnetic properties of a [Mn22] wheel-like single-molecule magnet

Inorganic Chemistry
Muralee MurugesuEuan K Brechin

Abstract

The synthesis and magnetic properties of the compound [Mn(22)O(6)(OMe)(14)(O(2)CMe)(16)(tmp)(8)(HIm)(2)] 1 are reported. Complex 1 was prepared by treatment of [Mn(3)O(MeCO(2))(6)(HIm)(3)](MeCO(2)) (HIm = imidazole) with 1,1,1-tris(hydroxymethyl)propane (H(3)tmp) in MeOH. Complex 1.2MeOH crystallizes in the orthorhombic space group Pbca. The molecule consists of a metallic core of 2 Mn(IV), 18 Mn(III), and 2 Mn(II) ions linked by a combination of 6 micro(3)-bridging O(2)(-) ions, 14 micro(3)- and micro(2)-bridging MeO(-) ions, 16 micro-MeCO(2)(-) ligands, and 8 tmp(3)(-) ligands, which use their alkoxide arms to bridge in a variety of ways. The metal-oxygen core is best described as a wheel made from [Mn(3)O(4)] partial cubes and [Mn(3)O] triangles. Variable-temperature direct current (dc) magnetic susceptibility data were collected for complex 1 in the 1.8-300 K temperature range in a 1 T applied field. The chi(M)T value steadily decreases from 56 cm(3) K mol(-)(1) at 300 K to 48.3 cm(3) K mol(-)(1) at 30 K and then increases slightly to reach a maximum value of 48.6 cm(3) K mol(-)(1) at 15 K before dropping rapidly to 40.3 cm(3) K mol(-)(1) at 5 K. The ground-state spin of complex 1 was established by magnetization measuremen...Continue Reading

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Citations

May 18, 2013·Inorganic Chemistry·Vadapalli ChandrasekharJean-Pascal Sutter
Oct 18, 2005·Chemical Communications : Chem Comm·Euan K Brechin
Nov 15, 2008·Chemical Communications : Chem Comm·Sanjit NayakAnnie K Powell
Sep 3, 2011·Chemical Communications : Chem Comm·Li-Fei ZouYun-Hui Li
Jul 2, 2010·The Journal of Chemical Physics·Shruba GangopadhyayMichael N Leuenberger
Apr 19, 2018·Dalton Transactions : an International Journal of Inorganic Chemistry·Ayaan SaleemSanjit Nayak
Jul 25, 2015·Dalton Transactions : an International Journal of Inorganic Chemistry·Haiquan TianLi-Min Zheng
Oct 22, 2010·Chemistry, an Asian Journal·Cai-Ming LiuDao-Ben Zhu
Oct 4, 2007·Chemistry : a European Journal·Jian-Wen ChengGuo-Yu Yang
May 12, 2006·Dalton Transactions : an International Journal of Inorganic Chemistry·Muralee MurugesuGeorge Christou
Dec 21, 2006·Angewandte Chemie·Theocharis C StamatatosGeorge Christou
Jan 24, 2008·Chemistry : a European Journal·Athanassios K BoudalisSpyros P Perlepes
Nov 6, 2008·Dalton Transactions : an International Journal of Inorganic Chemistry·Leigh F JonesEuan K Brechin
Jan 31, 2009·Chemistry : a European Journal·Yue-Ling BaiJun Tao
May 8, 2009·Dalton Transactions : an International Journal of Inorganic Chemistry·Ai-Ju ZhouMing-Liang Tong
May 8, 2010·Dalton Transactions : an International Journal of Inorganic Chemistry·Cai-Ming LiuDao-Ben Zhu
Apr 10, 2010·Dalton Transactions : an International Journal of Inorganic Chemistry·Mengyuan LiSong Gao
Aug 3, 2011·Science Progress·Dawid PinkowiczOlaf Stefańczyk
Apr 24, 2010·Chemical Society Reviews·George E KostakisAnnie K Powell
Jun 30, 2010·Dalton Transactions : an International Journal of Inorganic Chemistry·Mei WangQiu-Tian Liu
Sep 8, 2010·Dalton Transactions : an International Journal of Inorganic Chemistry·Taketo TaguchiGeorge Christou
Dec 17, 2008·Dalton Transactions : an International Journal of Inorganic Chemistry·Theocharis C StamatatosGeorge Christou
Jan 29, 2009·Dalton Transactions : an International Journal of Inorganic Chemistry·Mei WangChangneng Chen
Jul 2, 2011·Dalton Transactions : an International Journal of Inorganic Chemistry·Prasanta BhowmikShouvik Chattopadhyay
Oct 31, 2012·Dalton Transactions : an International Journal of Inorganic Chemistry·Yue-Ling BaiJun Tao
Aug 8, 2009·Dalton Transactions : an International Journal of Inorganic Chemistry·Jin-Tang LiLi-Min Zheng
Apr 1, 2009·Dalton Transactions : an International Journal of Inorganic Chemistry·Constantinos J MiliosEuan K Brechin
Nov 23, 2013·Dalton Transactions : an International Journal of Inorganic Chemistry·Yen-Wen TzengLong-Li Lai
Jan 7, 2017·Dalton Transactions : an International Journal of Inorganic Chemistry·Chun-Hung ChiangGene-Hsiang Lee
May 31, 2014·Dalton Transactions : an International Journal of Inorganic Chemistry·Sakiat HossainVadapalli Chandrasekhar
Oct 16, 2008·Dalton Transactions : an International Journal of Inorganic Chemistry·Anastasios J Tasiopoulos, Spyros P Perlepes
Oct 9, 2007·Inorganic Chemistry·Kartik Chandra MondalPartha Sarathi Mukherjee
Nov 26, 2009·Inorganic Chemistry·Didier SavardMuralee Murugesu

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