Phthalazin-2-ylidenes As Cyclic Amino Aryl Carbene Ligands in Rhodium(I) and Iridium(I) Complexes

被引:28
|
作者
Magriz, Antonio [2 ]
Gomez-Bujedo, Silvia [1 ]
Alvarez, Eleuterio [2 ]
Fernandez, Rosario [1 ]
Lassaletta, Jose M. [2 ]
机构
[1] Univ Seville, Fac Quim, Dept Quim Organ, E-41071 Seville, Spain
[2] CSIC USe, Inst Invest Quim, Seville 41092, Spain
关键词
N-HETEROCYCLIC CARBENES; PLANAR METAL-COMPLEXES; C-H; SUBSTITUENT; CHEMISTRY; CATALYSIS; CATIONS; ALKYNES; SYSTEM; BULKY;
D O I
10.1021/om100723b
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The direct metalation of phthalazinium halides with [Rh('BuO)(COD)](2) or [Ir('BuO)(COD)](2) led to the isolation of stable [MCl(phthalazin-2-ylidene)X(COD)] (M = Rh, Ir) as a new family of cyclic amino aryl carbene transition metal complexes. The X-ray diffraction analysis of several representatives systematically revealed a relatively short C(aryl)-C(carbene) bond distance of 1.44-1.46 angstrom, shorter than the typical C(sp(2))-C(sp(2)) single bond, indicating some electron density delocalization from the pi system of the aryl ring over the vacant carbene orbital.
引用
收藏
页码:5941 / 5945
页数:5
相关论文
共 50 条