Volume 57, Issue 48 pp. 15691-15695
Communication

Facile Activation of Homoatomic σ Bonds in White Phosphorus and Diborane by a Diboraallene

Dr. Wei Lu

Dr. Wei Lu

Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Nanyang Link 21, Singapore, 637371 Singapore

Search for more papers by this author
Kai Xu

Kai Xu

Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China

Search for more papers by this author
Dr. Yongxin Li

Dr. Yongxin Li

Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Nanyang Link 21, Singapore, 637371 Singapore

Search for more papers by this author
Prof. Dr. Hajime Hirao

Corresponding Author

Prof. Dr. Hajime Hirao

Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China

Search for more papers by this author
Prof. Dr. Rei Kinjo

Corresponding Author

Prof. Dr. Rei Kinjo

Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Nanyang Link 21, Singapore, 637371 Singapore

Search for more papers by this author
First published: 09 October 2018
Citations: 40

Graphical Abstract

Metal-free activation of homoatomic E−E σ bonds (E=P, B) in white phosphorus (P4) and bis(catecholato)diboron (B2cat2) with a 1,2-diboraallene is reported. The former affords BnP4 cages (n=2, 4), whereas the latter leads to the formation of a tetraborane featuring a B4 chain through homonuclear catenation.

Abstract

Metal-free activation of homoatomic E−E σ bonds (E=P, B) in white phosphorus (P4) and bis(catecholato)diboron (B2cat2) with a 1,2-diboraallene 1 is reported. The 1:1 and 1:2 reactions of P4 with 1 afford BnP4 cages (2: n=2, 3: n=4), whereas a stoichiometric mixture of 1 and B2cat2 undergoes homonuclear catenation through the addition of the B−B σ bond of B2cat2 across the B=B double bond of 1 (i.e. diboration), which leads to the formation of a tetraborane (4) featuring a B4 chain.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.