Spin Crossover in Polymeric Materials Using Schiff Base Functionalized Triazole Ligands

被引:19
|
作者
Scott, Hayley S. [1 ]
Ross, Tamsyn M. [1 ]
Moubaraki, Boujemaa [1 ]
Murray, Keith S. [1 ]
Neville, Suzanne M. [1 ]
机构
[1] Monash Univ, Sch Chem, Clayton, Vic 3800, Australia
基金
澳大利亚研究理事会;
关键词
Spin crossover; Iron; Schiff bases; Magnetic properties; Polymers; MAGNETIC-PROPERTIES; CRYSTAL-STRUCTURE; TRANSITION; TRINUCLEAR; COMPOUND; BEHAVIOR; 1D;
D O I
10.1002/ejic.201201071
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Functionalized 1,2,4-(R)-triazole-based Schiff base (R-N=CH-R') ligands have been incorporated into spin crossover 1D materials of the general formula [Fe(Xtrz)(3)](A)(2)center dot 2H(2)O (A = BF4, ClO4, Br, NO3; Xtrz = triazole hands). The ligand N-salicylidene 4-amino-1,2,4-triazole (Hsaltrz) and the novel ligand N-cinimalidene 4-amino-1,2,4-triazole (Hcintrz) were targeted to assess the implication of incorporating various aromatic functional groups on the spin crossover properties of this well-known family of one-dimensional materials. Magnetic susceptibility measurements on the polycrystalline powdered materials [Fe(Hsaltrz)(3)](A)(2)center dot 2H(2)O [A = BF4 (1), ClO4 (2), Br (3)1 and [Fe(Hcintrz)(3)](A)(2)center dot 1.5(H2O) [A = BF4 (4), ClO4 (5), Br (6)] revealed spin transitions over the range T-1/2 = 100-225 K. The spin crossover properties of the dehydrated materials were also investigated [1-6(dh)]. In attempts to prepare single crystals of these materials a dinuclear ([Fe-2(Hsaltrz)(5)(NCS)(4)]center dot 2MeOH (7)} and a trinuclear {[Fe-3(Hsaltrz)(6)(H2O)(2)(EtOH)(4)](ClO4)(6)center dot 2(EtOH) (8)} complex were obtained; these materials remain high spin over all temperatures and display weak antiferromagnetic exchange coupling. The structure of the novel ligand Hcintrz (9) is reported.
引用
收藏
页码:803 / 812
页数:10
相关论文
共 50 条
  • [21] Facile removal of metal species using polymeric SPE materials functionalized with uronium ligands
    Mendonca, Aubrey J.
    Boguszewski, Paul A.
    Coffey, Andrew F.
    Davies, John W.
    MacDonald, Alasdair A.
    Warner, Frank P.
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2006, 231
  • [22] Polymeric Substitution of Triazole Moieties in Cellulosic Schiff Base for Heavy Metal Complexation Studies
    R. Mahalakshmi
    R. Saravanan
    P. Selvakumar
    M. S. Karthikeyan
    L. Ravikumar
    Journal of Polymers and the Environment, 2022, 30 : 360 - 372
  • [23] Polymeric Substitution of Triazole Moieties in Cellulosic Schiff Base for Heavy Metal Complexation Studies
    Mahalakshmi, R.
    Saravanan, R.
    Selvakumar, P.
    Karthikeyan, M. S.
    Ravikumar, L.
    JOURNAL OF POLYMERS AND THE ENVIRONMENT, 2022, 30 (01) : 360 - 372
  • [24] Visualization of Weak Interaction Effects on N2O Schiff Base Ligands in Iron(II) Spin Crossover Complexes
    Sugimoto, Kunihisa
    Okubo, Takashi
    Maekawa, Masahiko
    Kuroda-Sowa, Takayoshi
    CRYSTAL GROWTH & DESIGN, 2021, 21 (07) : 4178 - 4183
  • [25] Homochiral iron(II) complexes based on imidazole Schiff-base ligands: Syntheses, structures, and spin-crossover properties
    Gu, Zhi-Guo
    Pang, Chun-Yan
    Qiu, Dan
    Zhang, Jie
    Huang, Ju-Li
    Qin, Long-Fang
    Sun, An-Qi
    Li, Zaijun
    INORGANIC CHEMISTRY COMMUNICATIONS, 2013, 35 : 164 - 168
  • [26] Halogen Substitution Effects on N2O Schiff Base Ligands in Unprecedented Abrupt FeII Spin Crossover Complexes
    Phonsri, Wasinee
    Macedo, David S.
    Vignesh, Kuduva R.
    Rajaraman, Gopalan
    Davies, Casey G.
    Jameson, Guy N. L.
    Moubaraki, Boujemaa
    Ward, Jas S.
    Kruger, Paul E.
    Chastanet, Guillaume
    Murray, Keith S.
    CHEMISTRY-A EUROPEAN JOURNAL, 2017, 23 (29) : 7052 - 7065
  • [27] PALLADIUM(II) AND PLATINUM(II) COMPLEXES WITH POLYMERIC SCHIFF-BASE LIGANDS
    RIEDERER, M
    URBAN, E
    SAWODNY, W
    ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH, 1977, 16 (12): : 860 - 861
  • [28] Complexation and catalytic studies using Schiff base ligands
    Wadler, Andrew L.
    Hamaker, Christopher G.
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2007, 233 : 168 - 168
  • [29] Spin crossover polymeric iron(II) complex based on triazole with branched long alkyl chain
    Lee, Young Hoon
    Komatsu, Yasuka
    Yamamoto, Yuuki
    Kato, Kazuya
    Shimizu, Tetsuya
    Ohta, Asuka
    Matsui, Takeshi
    Hayami, Shinya
    INORGANIC CHEMISTRY COMMUNICATIONS, 2011, 14 (09) : 1498 - 1500
  • [30] The cooperative effects of ligand substituent positions and solvents on spin crossover in Mn(III) complexes based on hexadentate Schiff-base ligands
    Zhang, Hao-Zhe
    Zhou, Hua-Wei
    Xu, Peng-Yu
    Qin, Chun-Yan
    Zhao, Sheng-Ze
    Li, Yong-Hua
    Wang, Shi
    POLYHEDRON, 2024, 248