摩熵化学
数据库官网
小程序
打开微信扫一扫
首页 分子通 化学资讯 化学百科 反应查询 关于我们
请输入关键词

1,5-bis-[2-(2-pyridyl)-1-benzimidazolyl]pentane | 197841-79-5

中文名称
——
中文别名
——
英文名称
1,5-bis-[2-(2-pyridyl)-1-benzimidazolyl]pentane
英文别名
1,5-bis[2-(2-pyridyl)benzimidazoyl]pentane;1,5-bis[2-(2-pyridyl)-1-benzimidazolyl]pentane;2-Pyridin-2-yl-1-[5-(2-pyridin-2-ylbenzimidazol-1-yl)pentyl]benzimidazole
1,5-bis-[2-(2-pyridyl)-1-benzimidazolyl]pentane化学式
CAS
197841-79-5
化学式
C29H26N6
mdl
——
分子量
458.566
InChiKey
HHAIKYSBOVXUIK-UHFFFAOYSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

计算性质

  • 辛醇/水分配系数(LogP):
    4.8
  • 重原子数:
    35
  • 可旋转键数:
    8
  • 环数:
    6.0
  • sp3杂化的碳原子比例:
    0.17
  • 拓扑面积:
    61.4
  • 氢给体数:
    0
  • 氢受体数:
    4

反应信息

  • 作为反应物:
    参考文献:
    名称:
    电子对配体桥联的Ru(II)和Co(III)化合物的激光激发的电子转移和系统间穿越的温度依赖性速率
    摘要:
    通过在丁腈中检测[[(bpy)2 Ru(L)Co(bpy)2 ] 5+(a,b和c)的配体桥联Ru(II)和Co(III)化合物内的光诱导分子内电子转移。光解动力学光谱学,其中L是桥联四齿配体,a是2,6-双(2-吡啶基)苯并二咪唑,b是2,2'-双(2-吡啶基)联苯并咪唑,1,5-bis [ c的2-(2-吡啶基)苯并咪唑基]戊烷。通过考虑吉布斯(Gibbs)能量变化和重组能的温度依赖性,分析了电子转移和系统间交叉速率的温度依赖性。皮秒激光激发a和b后在420 nm处观察到的瞬态差异吸收带不归因于激发的Ru(II)部分的形成,而是归因于Co(III)部分的反应产物(2 Co(II)) ,在270 K以下1 ns内衰变形成4 Co(II)的长寿命物种。2 Co(II)→ 4的系统间交叉的内球重组根据转变速率的温度依赖性,Co(II)估计为0.6 eV。电子从Ru(II)部分的激发MLCT状态到c的Co(III)在300
    DOI:
    10.1021/jp9513982
  • 作为产物:
    参考文献:
    名称:
    Dependency of Phosphorescence Energy Transfer Rate on Distance between a Cationic Donor and a Cationic Acceptor and on Temperature
    摘要:
    研究了配体桥接形式为[(bpy)2Ru(II)(B)Ru(II)(becbpy)2]4+的二钌(II)化合物内部的磷光能量转移,其中 bpy、becbpy 和 B 分别为 2,2′-联吡啶、研究人员在温度范围为 77-330 K 的丁腈溶液中研究了 4,4′-双(乙氧基羰基)-2,2′-联吡啶和桥接配体。激发能量从 Ru(bpy)22+ 分子转移到 Ru(becbpy)22+ 分子。在 77 K 时,能量传递速率(kEN = (0.4-7.4) × 106 s-1)与 Ru2+-Ru2+ 间距(r)有微弱的依赖性,这是对桥接配体的扩展构象的估计。对数 kEN 与对数 (1/r6) 的线性关系图显示,能量传递是通过偶极-偶极相互作用进行的。在 77-110 K 的温度范围内,能量转移率与温度的关系较弱,这可以用吸收-发射耦合积分来解释。在[(bpy)2Ru(bpbimH2)Ru(becbpy)2]4+(bpbimH2 = 2,2′-二(2-吡啶基)-6、6′-bibenzimidazole) 在 77 K 时的反应是由于激发态中的 Ru(bpy)2(bpbimH2)2+ 分子与基态中的 Ru(becbpy)22+ 分子之间存在着大量的交换相互作用。
    DOI:
    10.1246/bcsj.69.2791
点击查看最新优质反应信息

文献信息

  • Evaluation of Electronic Interaction Matrix Elements for Photoinduced Electron Transfer Processes within Mixed-Valence Complexes
    作者:Bobak Gholamkhass、Koichi Nozaki、Takeshi Ohno
    DOI:10.1021/jp971240c
    日期:1997.10.1
    The photochemical properties of ''alkane-bridged'' binuclear complexes, [(bec)(2)Ru-II(L-C-n-L)Ru-II/III(bpy)(2)](4+/5+) (where bec = 4,4'-bis(ethoxycarbonyl)-2,2'-bipyridine, bpy = 2,2'-bipyridine, and n = 3, 4, 5, 10) and [(dmb)(2)Ru-II(L-C-n-L)Os-II/III(L-alpha)(2)](4+/5+) (where dmb = 4,4'-dimethyl-2,2'-bipyridine, L-alpha = bpy or dmb and n = 3, 4, 5), in which the bridging ligand (L-C-n-L) was made of two [2-(2-pyridyl)-1-benzimidazolyl] groups (L) linked by an alkane chain, have been investigated using time-resolved nano-and picosecond laser spectroscopy, In the Ru(II)-Os(II) binuclear complexes, a metal-to-ligand charge transfer (MLCT) state of the Ru(II) moiety, ((CT)-C-3)Ru, was quenched by ((CT)-C-3)Ru-->Os(II) energy transfer. The intramolecular energy transfer rates for n = 3, 4, and 5 are well understood by assuming the Forster-type mechanism provided that the methylene chains are in a nearly extended form. In the mixed-valence binuclear complexes, Ru(II)-M(III) (M = Ru or Os), the decay of the ((CT)-C-3)Ru excited state was accelerated by electron transfer (ET) to the adjacent M(III) site giving the valence-isomer state, Ru(III)-M(II), which decayed to The ground state of the original form via back ET. Forward ET rates (k(et)) have been determined from the decay rate of the ((CT)-C-3)Ru excited state (k(es)) and the production yields of Ru(III)-M(II), phi(et), and back ET rates (k(b)) were obtained from the decay of Ru(III)-M(II), The value of phi(et) (less than or equal to 0.5 +/- 0.1) decreases along with the decreasing number of methylene groups or temperature, indicating the existence of another process quenching the ((CT)-C-3)Ru excited state. From the temperature dependence of k(et) and k(b), the electronic interaction matrix elements (H-rp) have been estimated using a nonadiabatic ET theory. H-rp for the forward ET process was found to be enhanced by a factor of 2 in the compounds in which the excited electron locates on the bridging ligand in [(dmb)(2)Ru-II(L-C-n-L)Os-III(L-alpha)(2)](5+) compared to that for [(bec)(2)Ru-II(L-C-n-L)Ru-III(bpy)(2)](5+) (n = 4, 5) in which the electron locates on the remote ligands. On the other hand, the matrix elements for back ET were found to be the same in either case, independent of metal ions and remote ligands.
查看更多