...
首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Super reduced Fe _4S _4 cluster of Balch's dithiolene series
【24h】

Super reduced Fe _4S _4 cluster of Balch's dithiolene series

机译:巴尔奇二硫烯系列的超还原Fe _4S _4团簇

获取原文
获取原文并翻译 | 示例
           

摘要

A super reduced Fe _4S _4 cluster with a sulfur based radical, [NBu _4] _4[Fe _3 ~(III)Fe ~(II)(μ _3-S) _4(mnt) _3 ~(6-)(mnt) ~(1-)] ~(4-), (1) (mnt, maleonitrile dithiolate) which evolves H 2S gas on treatment with acid under ambient conditions has been synthesized and structurally characterized. The Fe-S distances in 1 are in the range 2.246-2.383 ?, in stark contrast to that of the known n = -2 member of the series based on the [Fe _4(μ _3-S) _4(S _2C _2R _2) _4] ~n unit (R = CF _3, Ph) with Fe-S bond lengths of 2.149-2.186 ?. The EPR of 1 displays very weak signals at g, 4.03 and 2.38 along with a strong S-based radical EPR signal at g, 2.003 associated with five structured components tentatively assigned to hyperfine interaction arising out of the naturally abundant ~(57)Fe with = 88 G. The EPR profile resembles the reduced Fe-S cluster of CO inhibited Clostridium pasteurianum W5 hydrogenase or the Fe _4S _4 centers of wild-type enzyme, IspH treated with HMBPP or IPP.

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