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Abstract
This review article provides the reader with numerous evidence that 3a,6a-diaza-1,4-diphosphapentalenes are a form of existence of stabilized singlet phosphinidenes. In particular, the oligomerization reactions, addition at the phosphorus atom, and an unusual type of coordination with metals and Lewis acids testify to this.
GRAPHICAL ABSTRACT
Disclosure statement
No potential conflict of interest was reported by the authors.
Figure 1. Shapes of highest occupied (A) and lowest unoccupied (B) natural bond orbitals (B3LYP/6-31G+(d,p) for 1with the N-P bond length of 2.5 Å.
Additional information
Funding
This work was supported by the Russian Science Foundation (grant no. 19-13-00400) and performed using the equipment of the Analytical Center of G.A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences with financial support of the Federal target program “Research and development on priority directions of scientific and technological complex of Russia for 2014-2020” (Unique project identifier is RFMEFI62120X0040).