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

Authors
  • vershinin, mikhail a.
  • rakhmanova, marianna i.
  • novikov, alexander s.
  • sokolov, maxim n.
  • adonin, sergey a.
Publication Date
Jun 03, 2021
Identifiers
DOI: 10.3390/molecules26113393
OAI: oai:mdpi.com:/1420-3049/26/11/3393/
Source
MDPI
Keywords
Language
English
License
Green
External links

Abstract

Reactions between Zn(II) dihalides and 2-halogen-substituted pyridines 2-XPy result in a series of heteroleptic molecular complexes [(2-XPy)2ZnY2] (Y = Cl, X = Cl (1), Br (2), I (3) / Y = Br, X = Cl (4), Br (5), I (6), Y = I, X = Cl (7), Br (8), and I (9)). Moreover, 1–7 are isostructural (triclinic), while 8 and 9 are monoclinic. In all cases, halogen bonding plays an important role in formation of crystal packing. Moreover, 1–9 demonstrate luminescence in asolid state / for the best emitting complexes, quantum yield (QY) exceeds 21%.

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