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The coordination chemistry and magnetism of some 3d–4f and 4f amino-polyalcohol compounds

机译:某些3d–4f和4f氨基多元醇化合物的配位化学和磁性

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摘要

class="kwd-title">Abbreviations: tacn, 1,4,7-triazacyclononane; bmhH2, 1,2-bis(2-hydroxy-3-methoxybenzylidene)hydrazone; mshH, 3-methoxysalicylaldehyde hydrazone; 4-Me-py, 4-methyl-pyridine; chpH, 6-chloro-2-hydroxy-pyridine; acacH, acetylacetone; ΔTAD, adiabatic temperature change; a.c., alternating current; Ueff, anisotropy barrier; H, applied magnetic field; D, axial anisotropy; HO2CPh, benzoic acid; Hbta, benzotriazole; kB, Boltzmann constant; BVS, bond valence sum; nBudeaH2, n-butyldiethanolamine; CASPT2, complete active space perturbation theory 2; CASSCF, complete active space self consistent field; J12, coupling constant; d.c., direct current; μβ, electronic Bohr magneton; fcdcH2, ferrocene dicarboxylic acid; RdeaH2, functionalised diethanolamines; HDVV, Heisenberg Dirac van Vleck; ib, isobutyrate; iPrO, isopropoxide; JT, Jahn–Teller; g, Landé g-value; −ΔSM, magnetic entropy change; MCE, magnetocaloric effect; mdeaH2, methyldiethanolamine; Micro-SQUID, micro-superconducting quantum interference device; ms, microstate; nBudeaH3, n-butyldiethanolamine; edteH4, N,N,N′,N′-tetrakis(2-hydroxyethyl)ethylenediamine; sabheaH3, N-salicylidene-2-(bis(2-hydroxyethyl)amino)ethylamine; NMR, nuclear magnetic resonance; χ″, out-of-phase susceptibility; H2Pc, phthalocyanine; HO2CtBu, pivalic acid; py, pyridine; QT, quantum tunnelling; RASSI, restricted active space state interaction; E, rhombic ZFS; SMM, single-molecule magnet; χ, susceptibility; χT, susceptibility temperature product; Ŝn, spin operator; τ, tau; teaH3, triethanolamine; THF, tetrahydrofuran; tpaH, triphenyl acetic acid; ZFS, zero-field splitting class="kwd-title">Keywords: Lanthanide, 3d–4f, Triethanolamine, Diethanolamine, Coordination chemistry, Magnetism class="head no_bottom_margin" id="idm140546756511696title">AbstractTriethanolamine, teaH3, and diethanolamine, RdeaH2, 3d–4f and 4f compounds demonstrate an enormous variety in their structure and bonding. This review examines the synthetic strategies to these molecules and their magnetic properties, whilst trying to assess these ligands’ suitability towards new SMMs and magnetic refrigerants.
机译:<!-fig ft0-> <!-fig @ position =“ position” anchor“ == f4-> <!-fig mode =” anchred“ f5-> <!-fig / graphic | fig / alternatives / graphic mode =“ anchored” m1-> class =“ kwd-title”>缩写: tacn,1,4,7-triazacyclononane; bmhH2,1,2-双(2-羟基-3-甲氧基亚苄基)hydr; mshH,3-甲氧基水杨醛; 4-Me-py,4-甲基吡啶; chpH,6-氯-2-羟基吡啶; acacH,乙酰丙酮; ΔTAD,绝热温度变化;交流电; Ueff,各向异性势垒; H,施加的磁场; D,轴向各向异性; HO2CPh,苯甲酸;六溴环十二烷,苯并三唑; kB,玻尔兹曼常数; BVS,键价和; n BudeaH2,正丁基二乙醇胺; CASPT2,完整的主动空间摄动理论2; CASSCF,完整的活动空间自洽字段; J12,耦合常数;直流电; μβ,电子玻尔磁子; fcdcH2,二茂铁二羧酸; RdeaH2,功能化二乙醇胺; HDVV,Heisenberg Dirac van Vleck;异丁酸酯 i PrO,异丙氧化物; JT,Jahn–Teller; g,Landég值; -ΔSM,磁熵变; MCE,磁热效应; mdeaH2,甲基二乙醇胺; Micro-SQUID,微超导量子干涉装置; m s ,微状态; n BudeaH3, n -丁基二乙醇胺; edteH4, N N N ', N '-四(2-羟乙基)乙二胺; sabheaH3,N-水杨亚基-2-(双(2-羟乙基)氨基)乙胺; NMR,核磁共振; χ'',异相磁化率; H 2 Pc,酞菁; HO 2 C t Bu,新戊酸; py,吡啶; QT,量子隧穿; RASSI,受限活动空间状态交互; E ,菱形ZFS; SMM,单分子磁体; χ,易感性; χT,磁化温度乘积; Ŝ n ,自旋运算符; τ,tau; teaH 3 ,三乙醇胺; THF,四氢呋喃; tpaH,三苯基乙酸; ZFS,零场分裂 class =“ kwd-title”>关键字:镧系元素,3d–4f,三乙醇胺,二乙醇胺,配位化学,磁性 class =“ head no_bottom_margin” id =“ idm140546756511696696”>摘要三乙醇胺,teaH 3 和二乙醇胺,RdeaH 2 ,3d–4f和4f化合物在结构和键合方面表现出极大的多样性。这篇综述探讨了这些分子的合成策略及其磁性,同时试图评估这些配体对新型SMM和磁性制冷剂的适用性。

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