Chemistry - A European Journal 2017-09-21

Halogen contacts-induced unusual coloring in Bi(III) bromide complex: anion-to-cation charge transfer via Br···Br interactions

Sergey A. Adonin, Igor D. Gorokh, Alexander S. Novikov, Pavel A. Abramov, Maxim N. Sokolov, Vladimir P. Fedin

Index: 10.1002/chem.201703747

Full Text: HTML

Abstract

A yellow bromobismuthate {(2-BrPy)2H}[BiBr4] (1) transforms into unusually deeply colored cherry-red (2-BrPyH)2[BiBr5] (2). Combination of structural studies and theoretical calculations confirms that appearance of short non-covalent Br···Br interactions (≈ 3.3 Å) in 2 is responsible for the anion-to-cation charge transfer (LP(Brligand) σ*(Br-C)), yielding in dramatic changes in optical behavior. This effect opens the way towards novel halogen bonding-templated halometalate-based hybrid materials with enhanced optical properties.

Latest Articles:

Subnaphthalocyanines as Electron Acceptors in Polymer Solar Cells: Improving Device Performance by Modifying Peripheral and Axial Substituents

2018-04-10

[10.1002/chem.201800596]

Formal Lossen Rearrangement/[3+2] Annulation Cascade Catalyzed by a Modified Cyclopentadienyl RhIII Complex

2018-04-10

[10.1002/chem.201801125]

A Highly Sensitive Fluorogenic Probe for Imaging Glycoproteins and Mucine Activity in Live Cells in the Near‐Infrared Region

2018-04-10

[10.1002/chem.201800790]

Improvement of Photodynamic Activity of Lipid–Membrane‐Incorporated Fullerene Derivative by Combination with a Photo‐Antenna Molecule

2018-04-06

[10.1002/chem.201800674]

Ordered Mesoporous Titania/Carbon Hybrid Monoliths for Lithium‐ion Battery Anodes with High Areal and Volumetric Capacity

2018-04-06

[10.1002/chem.201801099]

More Articles...