Alkali-metal complexes of a tetramethylcyclopentadienyl-functionalized pyrazolylborate ligand.: Structures of [Li2(THF)3B(3-Mepz)3(C5Me4)] and [K2(THF)2B(3-MepZ)3(C5Me4)]∞

被引:10
作者
Roitershtein, D [1 ]
Domingos, A [1 ]
Marques, N [1 ]
机构
[1] ITN, Dept Quim, P-2686953 Sacavem, Portugal
关键词
D O I
10.1021/om0498293
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The new dianionic ligand [B(3-Mepz)(3)(C5Me4)](2-) was prepared and structurally characterized as its lithium and potassium salts. In the solid state, [Li-2(THF)(3){B(3-Mepz)(3)}(C5Me4)] is monomeric, while [K-2(THF)(2){B(3-Mepz)(3)}C5Me4)](infinity) consists of infinite puckered chains. The compounds were synthesized by reaction of B(NMe2)(2)(C5Me4H) with 2 equiv of 3-methylpyrazole and 1 equiv of M(3-Mepz) (M = Li, K) followed by deprotonation with n-BuLi or KH. The crystal structure of the intermediate monoanion, [Li(THF)(2){B(3-Mepz)(3)}-(C5Me4H)], is also presented.
引用
收藏
页码:3483 / 3487
页数:5
相关论文
共 32 条
[1]   Dimeric hydride complexes of rare-earth metals containing a linked amido-cyclopentadienyl ligand: Synthesis, characterization, and monomer-dimer equilibrium [J].
Arndt, S ;
Voth, P ;
Spaniol, TP ;
Okuda, J .
ORGANOMETALLICS, 2000, 19 (23) :4690-4700
[2]  
BIANI FF, 1997, INORG CHEM, V36, P2103
[3]   Structural studies of {9-[2-(dimethylamino)ethyl]fluorenyl}lithium compounds [J].
Culp, RD ;
Cowley, AH .
ORGANOMETALLICS, 1996, 15 (25) :5380-5384
[4]   SYNTHESIS AND STRUCTURE OF [HYDRIDOTRIS(3,5-BIS(TRIFLUOROMETHYL)PYRAZOYL)BORATO]POTASSIUM [J].
DIAS, HVR ;
LU, HL ;
RATCLIFF, RE ;
BOTT, SG .
INORGANIC CHEMISTRY, 1995, 34 (08) :1975-1976
[5]  
DOMINGOS A, UNPUB
[6]  
Fair C. K, 1990, MOLEN
[8]   Electronic communication in oligometallic complexes with ferrocene-based tris(1-pyrazolyl)borate ligands [J].
Guo, SL ;
Peters, F ;
de Biani, FF ;
Bats, JW ;
Herdtweck, E ;
Zanello, P ;
Wagner, M .
INORGANIC CHEMISTRY, 2001, 40 (19) :4928-4936
[9]   Lanthanide(II) complexes bearing linked cyclopentadienyl-anilido ligands: Synthesis, structures, and one-electron-transfer and ethylene polymerization reactions [J].
Hou, ZM ;
Koizumi, T ;
Nishiura, M ;
Wakatsuki, Y .
ORGANOMETALLICS, 2001, 20 (15) :3323-3328
[10]   SYNTHESIS AND DYNAMIC BEHAVIOR OF (PENTAMETHYLCYCLOPENTADIENYL)BORANES [J].
JUTZI, P ;
SEUFERT, A .
CHEMISCHE BERICHTE-RECUEIL, 1979, 112 (07) :2481-2487