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Probing the structure and electronic properties of beryllium doped boron clusters: A planar BeB16- cluster motif for metallo-borophene.


ABSTRACT: Beryllium-doped boron clusters display essential similarities to borophene (boron sheet) with a molecular structure characterized by remarkable properties, such as anisotropy, metallicity and high conductivity. Here we have determined low-energy structures of BeBn0/- (n?=?10-20) clusters by utilizing CALYPSO searching program and DFT optimization. The results indicated that most ground states of clusters prefer plane or quasi-plane structures by doped Be atom. A novel unexpected fascinating planar BeB16- cluster with C2v symmetry is uncovered which possesses robust relative stability. Furthermore, planar BeB16- offers a possibility to construct metallo-borophene nano-materials. Molecular orbital and chemical bonding analysis reveal the peculiarities of BeB16- cluster brings forth the aromaticity and the strong interaction of B-B ?-bonds in boron network.

SUBMITTER: Kang D 

PROVIDER: S-EPMC6779740 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature

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Probing the structure and electronic properties of beryllium doped boron clusters: A planar BeB<sub>16</sub><sup>-</sup> cluster motif for metallo-borophene.

Kang Dongliang D   Sun Weiguo W   Shi Hongxiao H   Lu Cheng C   Kuang Xiaoyu X   Chen Bole B   Xia Xinxin X   Maroulis George G  

Scientific reports 20191007 1


Beryllium-doped boron clusters display essential similarities to borophene (boron sheet) with a molecular structure characterized by remarkable properties, such as anisotropy, metallicity and high conductivity. Here we have determined low-energy structures of BeB<sub>n</sub><sup>0/-</sup> (n = 10-20) clusters by utilizing CALYPSO searching program and DFT optimization. The results indicated that most ground states of clusters prefer plane or quasi-plane structures by doped Be atom. A novel unexp  ...[more]

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