[(ClImDipp)P=P][GaCl4]: A polarized, cationic diphosphene
Research output: Contribution to journal › Research article › Contributed › peer-review
Contributors
Abstract
The reaction of the neutral diphosphanide [(ClImDipp)P-P(Cl)(Dipp)] (6) (ClImDipp = 4,5-dichloro-1,3-bis(Dipp)-imidazol-2-yl; Dipp = 2,6-di-iso-propylphenyl) with methyl triflate (MeOTf) leads to the formation of cationic diphosphane [(ClImDipp)(Me)P-P(Cl)(Dipp)]+ (8+) in a stereoselective methylation. In contrast, reacting 6 with the Lewis acid GaCl3 yields cationic diphosphene [(ClImDipp)P = P(Dipp)]+ (7+), which is explained by a low P-Cl bond dissociation energy. The significantly polarized P = P double bond in 7+ allows for its utilization as an acceptor for nucleophiles - the reaction with Cl- regenerates diphosphanide 6 and the reaction with PMe3 gives cation [(ClImDipp)P-P(PMe3)(Dipp)] (9+). In depth DFT investigation provides detailed insights into the bonding situation of the reported compounds.
Details
Original language | English |
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Pages (from-to) | 1409-1412 |
Number of pages | 4 |
Journal | Chemical communications |
Volume | 52 |
Issue number | 7 |
Publication status | Published - 25 Jan 2016 |
Peer-reviewed | Yes |
External IDs
ORCID | /0000-0001-7323-7816/work/163295531 |
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