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Phosphorus trifluoride (formula P F 3), is a colorless and odorless gas.It is highly toxic and reacts slowly with water. Its main use is as a ligand in metal complexes.As a ligand, it parallels carbon monoxide in metal carbonyls, [1] and indeed its toxicity is due to its binding with the iron in blood hemoglobin in a similar way to carbon monoxide.
The Pittsburgh Post-Gazette, also known simply as the PG, is the largest newspaper serving metropolitan Pittsburgh in the U.S. state of Pennsylvania.Descended from the Pittsburgh Gazette, established in 1786 as the first newspaper published west of the Allegheny Mountains, the paper formed under its present title in 1927 from the consolidation of the Pittsburgh Gazette Times and The Pittsburgh ...
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In early work, phosphine ligands were thought to utilize 3d orbitals to form M-P pi-bonding, but it is now accepted that d-orbitals on phosphorus are not involved in bonding. [9] The energy of the σ* orbitals is lower for phosphines with electronegative substituents , and for this reason phosphorus trifluoride is a particularly good π-acceptor.
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PSA PF3 was a global mid-size platform used by various models produced by Citroën and Peugeot. PSA began to use the new EMP2 platform (instead of the PF3 platform) for all future models in 2013, starting with the new Peugeot 308 , except for collaborations with its partner Dongfeng for models specifically designed for the Chinese market.
The Federal Register is the official publication of the United States government for publishing presidential decrees and the like for public notice.. A government gazette (also known as an official gazette, official journal, official newspaper, official monitor or official bulletin) is a periodical publication that has been authorised to publish public or legal notices.
Bob Smizik is a former sportswriter and columnist for the Pittsburgh Post-Gazette.Smizik retired in December 2008, accepting a buyout from the Post-Gazette in mid-December 2008, stepping away from his duties as a full-time columnist for the paper.