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Hydrogen bonded networks based on hexarhenium(iii) chalcocyanide cluster complexes: structural and photophysical characterization†
New Journal of Chemistry ( IF 2.7 ) Pub Date : 2018-06-21 00:00:00 , DOI: 10.1039/c8nj02310g Alexandra Ledneva 1, 2, 3 , Sylvie Ferlay 4, 5, 6, 7 , Nikolay G. Naumov 1, 2, 2, 3, 8 , Matteo Mauro 4, 5, 6, 7 , Stéphane Cordier 7, 9, 10 , Nathalie Kyritsakas 4, 5, 6, 7 , Mir Wais Hosseini 4, 5, 6, 7
New Journal of Chemistry ( IF 2.7 ) Pub Date : 2018-06-21 00:00:00 , DOI: 10.1039/c8nj02310g Alexandra Ledneva 1, 2, 3 , Sylvie Ferlay 4, 5, 6, 7 , Nikolay G. Naumov 1, 2, 2, 3, 8 , Matteo Mauro 4, 5, 6, 7 , Stéphane Cordier 7, 9, 10 , Nathalie Kyritsakas 4, 5, 6, 7 , Mir Wais Hosseini 4, 5, 6, 7
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Two series of isostructural compounds resulting from the combination of the four-fold hydrogen bond donors bisamidinium cations, namely 1-2H+ and 2-2H+, and the anionic chalcocyanide clusters of general formula [Re6Qi8(CN)a6]4− are presented (Q = S or Se; where i and a denote inner and apical position, respectively). 1-2H+ is built upon two imidazolium groups linked together by a –(CH2)2– alkyl chain. 2-2H+ is built upon two hydroxyamidinium groups linked together via a phenyl group and, in consequence, it exhibits a planar geometry. This ionic association leads to either two or three-dimensional hydrogen-bonded networks in the solid state, as confirmed by X-ray crystallographic analysis. The solid-state structures arise from the recognition between the pendant –C![[triple bond, length as m-dash]](https://www.rsc.org/images/entities/char_e002.gif)
N ligands of the cluster cores and the amidinium H-bond donors. The luminescence properties of the compounds are investigated in the solid state by means of steady-state and time-resolved techniques. Results are discussed and compared with those measured for the parent Cs4[Re6Si8(CN)a6] and Cs4[Re6Sei8(CN)a6] species. The H-bonded networks display featureless deep-red emission bands centered at λem = 722 and 737 nm and average excited-state lifetimes ranging between 11.5 and 14.8 μs, in accordance with the triplet nature of the radiative process. These photoluminescence properties are similar to the Cs+ homologues and are attributed to the [Re6Qi8]2+ emitting core.
中文翻译：
基于hexarhenium氢键合网络（III）chalcocyanide簇配合物：结构和光物理特性†
由四重氢键供体双ami鎓阳离子（即1 -2H +和2 -2H +）和通式[Re 6 Q i 8（CN）a 6 ] 4−表示（Q = S或Se；其中i和分别表示内部和顶端位置）。1 -2H +建立在通过-（CH 2）2-烷基链连接在一起的两个咪唑基上。2 -2小时+在两个通过苯基连接在一起的羟基ami鎓基上构建的α-羟基，因此显示出平面的几何形状。如X射线晶体学分析所证实的，这种离子缔合导致固态的二维或三维氢键网络。固态结构来自于簇状核的侧基–C N配体与the氢键的供体之间的识别。通过稳态和时间分辨技术研究了固态下化合物的发光特性。对结果进行了讨论并与针对母体Cs 4 [Re 6 S i 8（CN）a 6 ]和Cs 4的测量结果进行了比较。[Re 6 Se i 8（CN）a 6 ]物种。的氢键网络显示无特色深红色发射带为中心在λ EM = 722和737纳米和平均激发态寿命测距微秒11.5和14.8之间，根据辐射过程的三重态性质。这些光致发光性质类似于Cs +同源物，并归因于[Re 6 Q i 8 ] 2+发射核。
更新日期：2018-06-21
N ligands of the cluster cores and the amidinium H-bond donors. The luminescence properties of the compounds are investigated in the solid state by means of steady-state and time-resolved techniques. Results are discussed and compared with those measured for the parent Cs4[Re6Si8(CN)a6] and Cs4[Re6Sei8(CN)a6] species. The H-bonded networks display featureless deep-red emission bands centered at λem = 722 and 737 nm and average excited-state lifetimes ranging between 11.5 and 14.8 μs, in accordance with the triplet nature of the radiative process. These photoluminescence properties are similar to the Cs+ homologues and are attributed to the [Re6Qi8]2+ emitting core.
中文翻译：
基于hexarhenium氢键合网络（III）chalcocyanide簇配合物：结构和光物理特性†
由四重氢键供体双ami鎓阳离子（即1 -2H +和2 -2H +）和通式[Re 6 Q i 8（CN）a 6 ] 4−表示（Q = S或Se；其中i和分别表示内部和顶端位置）。1 -2H +建立在通过-（CH 2）2-烷基链连接在一起的两个咪唑基上。2 -2小时+在两个通过苯基连接在一起的羟基ami鎓基上构建的α-羟基，因此显示出平面的几何形状。如X射线晶体学分析所证实的，这种离子缔合导致固态的二维或三维氢键网络。固态结构来自于
簇状核的侧基–C N配体与the氢键的供体之间的识别。通过稳态和时间分辨技术研究了固态下化合物的发光特性。对结果进行了讨论并与针对母体Cs 4 [Re 6 S i 8（CN）a 6 ]和Cs 4的测量结果进行了比较。[Re 6 Se i 8（CN）a 6 ]物种。的氢键网络显示无特色深红色发射带为中心在λ EM = 722和737纳米和平均激发态寿命测距微秒11.5和14.8之间，根据辐射过程的三重态性质。这些光致发光性质类似于Cs +同源物，并归因于[Re 6 Q i 8 ] 2+发射核。
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