...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Hydrophilic quaternary ammonium-group-containing [FeFe]H(2)ase models prepared by quaternization of the pyridyl N atoms in pyridylazadiphosphine- and pyridylmethylazadiphosphine-bridged diiron complexes with various electrophiles
【24h】

Hydrophilic quaternary ammonium-group-containing [FeFe]H(2)ase models prepared by quaternization of the pyridyl N atoms in pyridylazadiphosphine- and pyridylmethylazadiphosphine-bridged diiron complexes with various electrophiles

机译：含亲水性季铵 - 含有吡啶基硫铵 - 吡啶基磷膦和吡啶基甲基己二维膦 - 桥接二铁桥与各种电泳的吡啶基N原子的季铵化制备的ASE模型

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The first aromatic quaternary ammonium-group-containing [FeFe]H(2)ase models have been prepared by a simple and convenient two-step method in high yields. Thus, on the basis of preparation of the N-pyridylazadiphosphine-bridged diiron complex (-PDT)Fe-2(CO)(4)[-3-(Ph2P)(2)NC5H4N] (A) by CO substitution of parent complex (-PDT)Fe-2(CO)(6) with N-pyridylazadiphosphine 3-(Ph2P)(2)NC5H4N in refluxing xylene, further quaternization of the pyridyl N atom in complex A with electrophile 1,3-propanesultone, 1,3,2-dioxathiolane-2,2-dioxide, or 4-bromobutyric acid in refluxing MeCN afforded the pyridyl quaternary ammonium-group-containing models (-PDT)Fe-2(CO)(4)[-3-(Ph2P)(2)NC5H4NR] (1, R = (CH2)(3)SO3; 2, R = (CH2)(2)OSO3) and (-PDT)Fe-2(CO)(4)[-3-(Ph2P)(2)NC5H4N(CH2)(3)CO2H]Br (3). Similarly, the N-pyridylmethylazadiphosphine-bridged diiron complex (-PDT)Fe-2(CO)(4)[-3-(Ph2P)(2)NCH2C5H4N] (B) could be prepared by CO substitution of parent complex (-PDT)Fe-2(CO)(6) with N-pyridylmethylazadiphosphine 3-(Ph2P)(2)NCH2C5H4N in refluxing xylene, while further quaternization of the pyridylmethyl N atom in complex B with 1,3-propanesultone and 3-bromo-1-propanol in MeCN at reflux resulted in formation of the pyridylmethyl quaternary ammonium-group-containing models (-PDT)Fe-2(CO)(4)[-3-(Ph2P)(2)NCH2C5H4N(CH2)(3)SO3] (4) and (-PDT)Fe-2(CO)(4)[-3-(Ph2P)(2)NCH2C5H4N(CH2)(3)OH]Br (5), respectively. All new complexes A, B, and 1-5 were characterized by elemental analysis and various spectroscopies, while the molecular structures of complexes A, B, 2 and 5 were further confirmed by X-ray crystallography. The electrochemical study on hydrophilic models 1 and 3 in MeCN and the MeCN/H2O mixed solvent indicated that the reduction potentials were shifted to less-negative potentials as the water content increased; such an observation implies that both 1 and 3 are easily reduced in the mixed MeCN/H2O solvent than in MeCN. In addition, the electrocatalytic study demonstrated that both 1 and 3 ca
机译：通过高产率的简单方便的两步方法制备了第一芳族季铵 - 含铵基碱基含量的αH（2）ASE模型。因此，基于制备N-吡啶基二膦 - 桥桥衍生（-PDT）Fe-2（CO）（4）[ - 3-（2）NC 5H 4N]（a）的母体复合物（-PDT）Fe-2（CO）（6）用N-吡啶基二膦3-（pH2P）（2）NC5H4N在回流二甲苯中，在复合物A中的吡啶基N原子的进一步季铵化与电子泳列1,3-丙烯酮，1，在回流Mecn中的3,2-二氧吡啶-2,2,2-二氧化甲酸盐或4-溴丁酸得到含吡啶基季铵基型（-PDT）Fe-2（CO）（4）[ - 3-（PH2P） （2）NC5H4NR]（1，R =（CH 2）（3）SO 3; 2，R =（CH2）（2）osO 3）和（-PDT）Fe-2（CO）（4）[ - 3-（PH2P ）（2）NC5H4N（CH2）（3）CO 2H] BR（3）。类似地，可以通过Co取代母体复合物（-PDT）来制备N-吡啶基甲基二膦 - 桥桥桥桥 - 桥桥桥桥 - 桥桥 - 桥桥 - 桥桥（-PDT）Fe-2（CO）（2）℃（B）可以制备亲本复合物（-PDT ）Fe-2（CO）（6）用N-吡啶基甲基双膦3-（pH2P）（2）邻 - 回流二甲苯，而在复合物B中的吡啶基甲基N原子的进一步季铵化为1,3-丙酮和3-Bromo-1 -Propanol在回流中，形成含吡啶甲基季铵氨基型模型（-PDT）Fe-2（CO）（4）[ - 3-（PH2P）（2）NCH 2 C 5H 4N（3）SO 3 ]（4）和（-PDT）Fe-2（CO）（4）[ - 3-（PH2P）（2）NCH2C5H4N（CH2）（3）OH] Br（5）。所有新的复合物A，B和1-5的特征在于元素分析和各种光谱，而通过X射线晶体学进一步证实络合物A，B，2和5的分子结构。在Mecn和Mecn / H 2 O混合溶剂中的亲水性模型1和3的电化学研究表明，随着水含量增加，减少电位移至较少负电位;这种观察意味着在混合的Mecn / H 2 O溶剂中易于1和3易于减少比mecn。此外，电催化研究证明了1和3 CA

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号