Enantiomerism, diastereomerism and thermochromism in two Cu7I4 cluster-based coordination polymers,Journal of Materials Chemistry C

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Enantiomerism, diastereomerism and thermochromism in two Cu7I4 cluster-based coordination polymers
Journal of Materials Chemistry C ( IF 5.7 ) Pub Date : 2019-11-25 , DOI: 10.1039/c9tc05996b
Wei-Ming Liao _{1,

2,

3,

4} , Xiang-Nan Li _{4,

5,

6,

7} , Qi Zeng _{1,

2,

3,

4} , Yuan-Hui Zhong _{1,

2,

3,

4} , Ye-Gao Yin _{4,

5,

6,

7} , Jun He _{1,

2,

3,

4}

Affiliation

Solvothermal reaction between CuI and 5-(3-pyridyl)tetrazole (HPTA) in CH₃CN and NH₃·H₂O/n-BuOH, afforded two kinds of Cu₇I₄ cluster-based coordination polymers 1 and 2, respectively. 1 is a racemic conglomerate of enantiomers crystallizing in the P6₃22 space group and 2 is a mesomer crystallizing in the P [3 with combining macron]

c1 group. Both 1 and 2 show dual-channel emissions in which low-energy emission originates from a cluster-centered (CC) excited state while high-energy emission is attributed to an iodide-to-ligand charge transfer (XLCT)/metal-to-ligand charge transfer (MLCT) excited state. Of particular interest, 2 exhibits thermochromic luminescence originating from the combined effects of non-radiative transition and thermal deactivation of the XLCT excited state.

中文翻译：

两种基于Cu7I4团簇的配位聚合物中的对映异构，非对映异构和热致变色

CuI和5-（3-吡啶基）四唑（HPTA）在CH ₃ CN和NH ₃ ·H ₂ O / n -BuOH中的溶剂热反应，分别得到两种基于Cu ₇ I ₄团簇的配位聚合物1和2。。1是在P 6 ₃ 22空间群中结晶的对映异构体的外消旋聚集体，而2是在P c中结晶的对映异构体 [3与组合光子组合]