Stable Versions of Transient Push-Pull Carbenes: Extending Lifetimes from Nanoseconds to Weeks

A (phosphanyl)(trifluoromethyl)carbene is shown to be stable for weeks in solution at temperatures up to -30°C;. Its chemical behavior exactly matches that of its transient congeners, even to the extent that subtle effects, such as the recently discovered weak π interaction with aromatics, are obser...

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Published inScience (American Association for the Advancement of Science) Vol. 288; no. 5467; pp. 834 - 836
Main Authors Buron, Christophe, Gornitzka, Heinz, Romanenko, Vadim, Bertrand, Guy
Format Journal Article
LanguageEnglish
Published Washington, DC American Society for the Advancement of Science 05.05.2000
American Association for the Advancement of Science
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Abstract A (phosphanyl)(trifluoromethyl)carbene is shown to be stable for weeks in solution at temperatures up to -30°C;. Its chemical behavior exactly matches that of its transient congeners, even to the extent that subtle effects, such as the recently discovered weak π interaction with aromatics, are observed. The influence of substituents on the structure of push-pull carbenes is demonstrated by a single-crystal x-ray diffraction study of a (phosphanyl)[2,6-bis(trifluoromethyl)phenyl]carbene. The lifetime of these molecules makes them accessible to a wider range of standard techniques, allowing their chemical and physical behaviors to be studied in more detail than was previously possible.
AbstractList A (phosphanyl)(trifluoromethyl)carbene is shown to be stable for weeks in solution at temperatures up to -30 [degrees] C. Its chemical behavior exactly matches that of its transient congeners, even to the extent that subtle effects, such as the recently discovered weak [Pi] interaction with aromatics, are observed. The influence of substituents on the structure of push-pull carbenes is demonstrated by a single-crystal x-ray diffraction study of a (phosphanyl)[2,6-bis(trifluoromethyl) phenyl]carbene. The lifetime of these molecules makes them accessible to a wider range of standard techniques, allowing their chemical and physical behaviors to be studied in more detail than was previously possible.
A (phosphanyl)(trifluoromethyl)carbene is shown to be stable for weeks in solution at temperatures up to −30°C. Its chemical behavior exactly matches that of its transient congeners, even to the extent that subtle effects, such as the recently discovered weak π interaction with aromatics, are observed. The influence of substituents on the structure of push-pull carbenes is demonstrated by a single-crystal x-ray diffraction study of a (phosphanyl)[2,6-bis(trifluoromethyl)phenyl]carbene. The lifetime of these molecules makes them accessible to a wider range of standard techniques, allowing their chemical and physical behaviors to be studied in more detail than was previously possible.
A (phosphanyl)(trifluoromethyl)carbene is shown to be stable for weeks in solution at temperatures up to -30°C;. Its chemical behavior exactly matches that of its transient congeners, even to the extent that subtle effects, such as the recently discovered weak π interaction with aromatics, are observed. The influence of substituents on the structure of push-pull carbenes is demonstrated by a single-crystal x-ray diffraction study of a (phosphanyl)[2,6-bis(trifluoromethyl)phenyl]carbene. The lifetime of these molecules makes them accessible to a wider range of standard techniques, allowing their chemical and physical behaviors to be studied in more detail than was previously possible.
Audience Academic
Author Bertrand, Guy
Buron, Christophe
Romanenko, Vadim
Gornitzka, Heinz
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  surname: Romanenko
  fullname: Romanenko, Vadim
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  givenname: Guy
  surname: Bertrand
  fullname: Bertrand, Guy
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Issue 5467
Keywords Substituent effect
Chemical solution
Lifetime
Molecular structure
Stabilization
Push pull compound
XRD
Experimental study
Carbenes
Phosphorus Organic compounds
Crystal structure
Language English
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Snippet A (phosphanyl)(trifluoromethyl)carbene is shown to be stable for weeks in solution at temperatures up to -30°C;. Its chemical behavior exactly matches that of...
A (phosphanyl)(trifluoromethyl)carbene is shown to be stable for weeks in solution at temperatures up to -30 degrees C. Its chemical behavior exactly matches...
A (phosphanyl)(trifluoromethyl)carbene is shown to be stable for weeks in solution at temperatures up to −30°C. Its chemical behavior exactly matches that of...
A (phosphanyl)(trifluoromethyl)carbene is shown to be stable for weeks in solution at temperatures up to -30 [degrees] C. Its chemical behavior exactly matches...
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SubjectTerms Alkenes
Astronomical objects
Carbenes
Carbon compounds
Condensed matter: structure, mechanical and thermal properties
Exact sciences and technology
Orbitals
Organic compounds
Organometalloidal and organometallic compounds
Phosphorus
Photolysis
Physics
Pixels
Radar
Radar tracking
Solvents
Structure of liquids
Structure of solids and liquids; crystallography
Structure of specific crystalline solids
Time-dependent properties; relaxation
Title Stable Versions of Transient Push-Pull Carbenes: Extending Lifetimes from Nanoseconds to Weeks
URI https://www.jstor.org/stable/3075196
https://www.ncbi.nlm.nih.gov/pubmed/10796999
https://search.proquest.com/docview/1859319550
Volume 288
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