Department of Chemistry, Memorial University of Newfoundland St. John's, Newfoundland A1B 3X7, Canada.
Dalton Trans. 2012 Apr 28;41(16):4806-16. doi: 10.1039/c2dt12242a. Epub 2012 Mar 2.
Eight new iron(III) amine-bis(phenolate) complexes are reported. The reaction of anhydrous FeX(3) salts (where X = Cl or Br) with the diprotonated tripodal tetradentate ligands 2-tetrahydrofurfurylamino-N,N-bis(2-methylene-4,6-di-tert-butylphenol), H(2)L1, 2-tetrahydrofurfurylamino-N,N-bis(2-methylene-4-methyl-6-tert-butylphenol), H(2)L2, and 2-methoxyethylamino-N,N-bis(2-methylene-4,6-di-tert-butylphenol), H(2)L3, 2-methoxyethylamino-N,N-bis(2-methylene-4-methyl-6-tert-butylphenol), H(2)L4 produces the trigonal bipyramidal iron(III) complexes, L1FeCl (1a), L1FeBr (1b), L2FeCl (2a), L2FeBr (2b), L3FeCl (3a), L3FeBr (3b), L4FeCl (4a), and L4FeBr (4b). All complexes have been characterized using electronic absorption spectroscopy, cyclic voltammetry and room temperature magnetic measurements. Variable temperature magnetic data were acquired for complexes 2b, 3a and 4b. Variable temperature Mössbauer spectra were obtained for 2b, 3a and 4b. Single crystal X-ray molecular structures have been determined for proligand H(2)L4 and complexes 1b, 2b, and 4b.
报告了 8 个新的铁(III)胺双(苯并二氢吡喃)配合物。无水 FeX3 盐（其中 X = Cl 或 Br）与二质子化的三足四齿配体 2-四氢糠基氨基-N，N-双（2-亚甲基-4,6-二叔丁基苯氧基），H2L1，2-四氢糠基氨基-N，N-双（2-亚甲基-4-甲基-6-叔丁基苯氧基），H2L2，和 2-甲氧基乙氨基-N，N-双（2-亚甲基-4,6-二叔丁基苯氧基），H2L3，2-甲氧基乙氨基-N，N-双（2-亚甲基-4-甲基-6-叔丁基苯氧基），H2L4 反应，生成三角双锥铁(III)配合物，L1FeCl（1a），L1FeBr（1b），L2FeCl（2a），L2FeBr（2b），L3FeCl（3a），L3FeBr（3b），L4FeCl（4a）和 L4FeBr（4b）。所有配合物均采用电子吸收光谱、循环伏安法和室温磁性测量进行了表征。对 2b、3a 和 4b 获得了变温磁性数据。对 2b、3a 和 4b 获得了变温穆斯堡尔谱。对前体配体 H2L4 和配合物 1b、2b 和 4b 进行了单晶 X 射线分子结构测定。
