QQ客服 官方微博 反馈留言

	Synthesis, Crystal Structures, and Magnetic Properties of Cyanide-Bridged Fe(III)-Mn(III) Complexes Based on Manganese(III)-Porphyrin and Pyridinecarboxamide Dicyanideiron(III) Building Blocks
	Zhang, Daopeng ; Wang, Hailong ; Tian, Laijin ; Kou, Hui-Zhong ; Jiang, Jianzhuang ; Ni, Zhong-Hai
	2010-10-12 ; 2010-10-12
关键词	SINGLE-MOLECULE-MAGNET N-CONFUSED PORPHYRIN LANGMUIR-BLODGETT-FILMS PRUSSIAN BLUE ELECTRON-TRANSFER CHAIN MAGNETS PHOTOINDUCED MAGNETIZATION ORDERING TEMPERATURE NETWORK STRUCTURES LAYERED COMPOUND Chemistry, Multidisciplinary Crystallography Materials Science, Multidisciplinary
中文摘要	A series of cyanide-bridged heterometallic manganese(III)-porphyrin complexes including two trinuclear sandwich-type Fe-III-Mn-III-Fe-III compounds, three binuclear Fe-III-Mn-III compounds, and one ionic pair compound were designed and synthesized using five manganese(III)-porphyrin compounds and two pyridinecarboxamide dicyanideiron building blocks. Their crystal structures and magnetic properties have been systematically and comparatively investigated. X-ray diffraction analysis reveals the similar molecular structure among the two trinuclear and three binuclear cyanide-bridged complexes, respectively. In the trinuclear compounds 1 and 2 containing tetra(phenyl)porphyrin ligand, two dicyanide-containing units [Fe(bpb)(CN)(2)](-) or [Fe(bpmb)(CN)(2)](-) as monodentate ligands coordinate with the central Mn(III) atom of [Mn(TPP)(CH3OH)(2)](+) through one of their two trans cyanide groups to form the complex anion of {[Fe(bpb)(CN)(2)](2)-Mn(TPP)]}(-) or {[Fe(bpmb)(CN)(2)](2)Mn(TPP)]}(-), which further constructs the neutral complexes {[Fe(L)(2)](2)[Mn(TPP)}-[Mn(TPP)(CH3OH)(2)]center dot xH(2)O center dot yCH(3)OH [L = bpb(2-) (1); L = bpmb(2-) (2)] with the help of one [Mn(TPP)(CH3OH)(2)](+) unit as a balanced cation. In the three binuclear Fe-III-Mn-III complexes containing a tetra(aryl)porphyrin ligand with increased bulky meso-attached aryl substituents, namely, {[Fe(bpb)(CN)(2)][Mn(TNPP)(H2O)]}center dot 3H(2)O (3). {[Fe(bpb)(CN)(2)][Mn(TCIPP)-(CH3OH)]}center dot 3CH(3)OH (4), and {[Fe(bpb)(CN)(2)][Mn(TMeOPP)(CH3CH2OH]}center dot 2CH(3)OH center dot CH3CH2OH center dot H2O (5), two metal centers are bridged by one cyanide group of [Fe(bpb)(CN)(2)](-). In addition, the ionic compound [Fe(bpb)(CN)(2)]-[Mn(TDMeAPP)(CH3OH)(2)]center dot 2H(2)O (6) was obtained by using [Fe(bpb)(CN)(2)](-) and [Mn(TDMeAPP)(CH3OH)(2)](-) as assembling segments. Investigation over magnetic properties of these heterometallic complexes reveals the ferromagnetic interaction between Mn-III and Fe-III magnetic centers for two trinuclear (Fe2MnIII)-Mn-III and three binuclear (FeMnIII)-Mn-III complexes with J(MnFe) = 3.28(1) and 2.47(2) cm(-1) for 1 and 2, and J(MnFe) = 4.91(3), 2.55(3), and 1.72(1) cm(-1) for 3, 4, and 5 on the basis of the Hamiltonian (H) over cap = -2J (S) over cap (Mn)((S) over cap (Fe(1)) + (S) over cap (Fe(2))) or (H) over cap = -2J (S) over cap (Fe)(S) over cap (Mn), respectively. Ac magnetic susceptibility measurements on two representatives 1 and 3 manifest their obvious frequency-dependent out-of-phase chi(m)'' signals below 3.5 K, along with clear frequency-dependent in-phase chi(m)' signals,
语种	英语 ; 英语
出版者	AMER CHEMICAL SOC ; WASHINGTON ; 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/81018]
专题	清华大学
推荐引用方式 GB/T 7714	Zhang, Daopeng,Wang, Hailong,Tian, Laijin,et al. Synthesis, Crystal Structures, and Magnetic Properties of Cyanide-Bridged Fe(III)-Mn(III) Complexes Based on Manganese(III)-Porphyrin and Pyridinecarboxamide Dicyanideiron(III) Building Blocks[J],2010, 2010.
APA	Zhang, Daopeng,Wang, Hailong,Tian, Laijin,Kou, Hui-Zhong,Jiang, Jianzhuang,&Ni, Zhong-Hai.(2010).Synthesis, Crystal Structures, and Magnetic Properties of Cyanide-Bridged Fe(III)-Mn(III) Complexes Based on Manganese(III)-Porphyrin and Pyridinecarboxamide Dicyanideiron(III) Building Blocks..
MLA	Zhang, Daopeng,et al."Synthesis, Crystal Structures, and Magnetic Properties of Cyanide-Bridged Fe(III)-Mn(III) Complexes Based on Manganese(III)-Porphyrin and Pyridinecarboxamide Dicyanideiron(III) Building Blocks".(2010).

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。