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含2-卤代吡啶的锌(II)杂配体卤化物配合物:固态中卤素键合的特征

Zn(II) Heteroleptic Halide Complexes with 2-Halopyridines: Features of Halogen Bonding in Solid State.

作者信息

Vershinin Mikhail A, Rakhmanova Marianna I, Novikov Alexander S, Sokolov Maxim N, Adonin Sergey A

机构信息

Nikolaev Institute of Inorganic Chemistry SB RAS, Lavrentieva St. 3, 630090 Novosibirsk, Russia.

Institute of Chemistry, Saint Petersburg State University, Universitetskaya Nab. 7-9, 199034 Saint Petersburg, Russia.

出版信息

Molecules. 2021 Jun 3;26(11):3393. doi: 10.3390/molecules26113393.

Abstract

Reactions between Zn(II) dihalides and 2-halogen-substituted pyridines 2-XPy result in a series of heteroleptic molecular complexes [(2-XPy)ZnY] (Y = Cl, X = Cl (), Br (), I (); Y = Br, X = Cl (), Br (), I (), Y = I, X = Cl (), Br (), and I ()). Moreover, - are isostructural (triclinic), while and are monoclinic. In all cases, halogen bonding plays an important role in formation of crystal packing. Moreover, - demonstrate luminescence in asolid state; for the best emitting complexes, quantum yield (QY) exceeds 21%.

摘要

二卤化锌(II)与2-卤代吡啶2-XPy之间的反应会生成一系列异配体分子配合物[(2-XPy)ZnY](Y = Cl,X = Cl(),Br(),I();Y = Br,X = Cl(),Br(),I();Y = I,X = Cl(),Br(),I())。此外, - 为三斜晶系同构,而 和 为单斜晶系。在所有情况下,卤素键在晶体堆积的形成中起着重要作用。此外, - 在固态下表现出发光现象;对于发光性能最佳的配合物,量子产率(QY)超过21%。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/887f/8199927/37fd3b4c3781/molecules-26-03393-g001.jpg

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