N-Heterocyclic carbenes versus transition metals for stabilizing phosphinyl radicals

被引:96
作者
Back, Olivier [1 ]
Donnadieu, Bruno [1 ]
von Hopffgarten, Moritz [2 ]
Klein, Susanne [2 ]
Tonner, Ralf [2 ]
Frenking, Gernot [2 ]
Bertrand, Guy [1 ]
机构
[1] Univ Calif Riverside, Dept Chem, Joint Res Chem Lab UMI 2957, Riverside, CA 92521 USA
[2] Univ Marburg, Fachbereich Chem, D-35032 Marburg, Germany
基金
美国国家科学基金会;
关键词
ELECTRON-SPIN-RESONANCE; MAIN-GROUP ELEMENTS; PARAMAGNETIC-RESONANCE; PHOSPHORUS; COMPLEXES; PERSISTENT; LIGANDS; CATION; METATHESIS; GENERATION;
D O I
10.1039/c1sc00027f
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
It is shown that vanadium-iminato ligands are more efficient than imidazolidin-2-iminato substituents to delocalize the spin density from a phosphorus nucleus. However, the latter is stabilizing enough to allow for the isolation and characterization in the liquid and solid states of a neutral phosphinyl radical.
引用
收藏
页码:858 / 861
页数:4
相关论文
共 45 条
[1]   An isolable and monomeric phosphorus radical that is resonance-stabilized by the vanadium(IV/V) redox couple [J].
Agarwal, Paresh ;
Piro, Nicholas A. ;
Meyer, Karsten ;
Mueller, Peter ;
Cummins, Christopher C. .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2007, 46 (17) :3111-3114
[2]  
Alcarazo M, 2009, NAT CHEM, V1, P295, DOI [10.1038/NCHEM.248, 10.1038/nchem.248]
[3]  
[Anonymous], 2007, TURBOMOLE V62 2010 D
[4]   Imidazolylidenes, imidazolinylidenes and imidazolidines [J].
Arduengo, AJ ;
Krafczyk, R ;
Schmutzler, R ;
Craig, HA ;
Goerlich, JR ;
Marshall, WJ ;
Unverzagt, M .
TETRAHEDRON, 1999, 55 (51) :14523-14534
[5]  
Armstrong A, 2006, ACS SYM SER, V917, P66
[6]   Stable cubic phosphorus-containing radicals [J].
Armstrong, A ;
Chivers, T ;
Parvez, M ;
Boeré, RT .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2004, 43 (04) :502-505
[7]   A Crystalline Phosphinyl Radical Cation [J].
Back, Olivier ;
Celik, Mehmet Ali ;
Frenking, Gernot ;
Melaimi, Mohand ;
Donnadieu, Bruno ;
Bertrand, Guy .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2010, 132 (30) :10262-10263
[8]  
Back O, 2010, NAT CHEM, V2, P369, DOI [10.1038/nchem.617, 10.1038/NCHEM.617]
[9]   Nonmetal-Mediated Fragmentation of P4: Isolation of P1 and P2 Bis(carbene) Adducts [J].
Back, Olivier ;
Kuchenbeiser, Glenn ;
Donnadieu, Bruno ;
Bertrand, Guy .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2009, 48 (30) :5530-5533
[10]   DENSITY-FUNCTIONAL EXCHANGE-ENERGY APPROXIMATION WITH CORRECT ASYMPTOTIC-BEHAVIOR [J].
BECKE, AD .
PHYSICAL REVIEW A, 1988, 38 (06) :3098-3100