• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Chemistry: A European journal >Both spacer length and parity influence the thermal and light-induced properties of iron(II) alpha,omega-bis(tetrazole-1-yl)alkane coordination polymers
【24h】

Both spacer length and parity influence the thermal and light-induced properties of iron(II) alpha,omega-bis(tetrazole-1-yl)alkane coordination polymers

机译：间隔物的长度和奇偶性都会影响铁（II）α，ω-双（四唑-1-基）烷烃配位聚合物的热和光诱导性能

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

A new series of [mu-tris-{1,n-bis(tetrazol-1-yl)alkane-N4,N4'}iron(II)] bis(perchlorate) spin-crossover coordination polymers ([Fe(nditz)(3)](ClO4)(2)]; n=4-9) has been synthesised and characterised. The ditetrazole bridging ligands provide octahedral symmetry at the iron(II) centres while allowing the distance between iron(II) centres to be varied. These polymers have therefore been investigated to determine the effects of spacer length on their thermal and light-induced spin-transition behaviour. An increase in the number of carbon atoms in the spacer (n) raises the thermal spin-crossover temperature, while decreasing the stability of the light-induced metastable state generated through the light-induced excited spin state trapping (LIESST) effect by irradiating the sample at 530 nm. Remarkably, however, the parity of the spacer also has an effect, enabling the series of complexes to be divided into two sub-series depending on whether the bridging ligand possesses an even or an odd number of carbon atoms. An explanation at the molecular level using the single configurational coordinate (SCC) model is presented.
机译：一个新的[mu-tris- {1，n-双（四唑-1-基）烷烃-N4，N4'}铁（II）]双（高氯酸盐）自旋交联配位聚合物（[Fe（nditz）（ 3）]（ClO4）（2）]; n = 4-9）已合成并表征。二四唑桥连配体在铁（II）中心提供八面体对称性，同时允许铁（II）中心之间的距离变化。因此，已经对这些聚合物进行了研究，以确定间隔物长度对其热和光诱导的自旋转变行为的影响。间隔物（n）中碳原子数目的增加提高了热自旋交叉温度，同时降低了通过照射光致激发自旋态俘获（LIESST）效应而产生的光致亚稳态的稳定性。样品在530 nm处。然而，显着地，间隔基的奇偶性也具有作用，使得取决于桥联配体具有偶数或奇数个碳原子，络合物系列可分为两个亚系列。提出了使用单构型坐标（SCC）模型在分子水平上的解释。

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