Jump to main content
Jump to site search

Issue 8, 2019
Previous Article Next Article

[La(ηx-Bx)La] (x = 7–9): a new class of inverse sandwich complexes

Author affiliations

Abstract

Despite the importance of bulk lanthanide borides, nanoclusters of lanthanide and boron have rarely been investigated. Here we show that lanthanide–boron binary clusters, La2Bx, can form a new class of inverse-sandwich complexes, [Ln(ηx-Bx)Ln] (x = 7–9). Joint experimental and theoretical studies reveal that the monocyclic Bx rings in the inverse sandwiches display similar bonding, consisting of three delocalized σ and three delocalized π bonds. Such monocyclic boron rings do not exist for bare boron clusters, but they are stabilized by the sandwiching lanthanide atoms. An electron counting rule is proposed to predict the sizes of the Bx ring that can form stable inverse sandwiches. A unique (d-p)δ bond is found to play important roles in the stability of all three inverse-sandwich complexes.

Graphical abstract: [La(ηx-Bx)La]− (x = 7–9): a new class of inverse sandwich complexes

Back to tab navigation

Supplementary files

Article information


Submitted
05 Dec 2018
Accepted
08 Jan 2019
First published
14 Jan 2019

This article is Open Access
All publication charges for this article have been paid for by the Royal Society of Chemistry

Chem. Sci., 2019,10, 2534-2542
Article type
Edge Article

[La(ηx-Bx)La] (x = 7–9): a new class of inverse sandwich complexes

T. Chen, W. Li, J. Li and L. Wang, Chem. Sci., 2019, 10, 2534
DOI: 10.1039/C8SC05443F

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material.

Reproduced material should be attributed as follows:

  • For reproduction of material from NJC:
    [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC.
  • For reproduction of material from PCCP:
    [Original citation] - Published by the PCCP Owner Societies.
  • For reproduction of material from PPS:
    [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
  • For reproduction of material from all other RSC journals:
    [Original citation] - Published by The Royal Society of Chemistry.

Information about reproducing material from RSC articles with different licences is available on our Permission Requests page.


Social activity

Search articles by author

Spotlight

Advertisements