Mono (alkylcyclopentadienyl) complexes of barium and strontium

被引:27
作者
Sitzmann, H [1 ]
Weber, F [1 ]
Walter, MD [1 ]
Wolmershäuser, G [1 ]
机构
[1] Univ Kaiserslautern, Fachbereich Chem, D-67663 Kaiserslautern, Germany
关键词
D O I
10.1021/om020034a
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The mono(ring) complexes [{(C5H2R3-1,2,4)BaI(THF)(2)}(infinity)] (1-Ba; R = CMe3) and [{(C5HR4)BaI(THF)(2)}(2)] (2-Ba; R = CHMe2) have been synthesized from BaI2 and the corresponding sodium cyclopentadienides. 2-Sr has been obtained both from SrI2 and NaC5HR4 (R = CHMe2) or by ligand redistribution between octaisopropylstrontocene (3-Sr) and SrI2. The chlorobridged calcium complex [{(C5H2R3-1,2,4)CaCl(DME)}(2)] (4-Ca, R = CMe3) is available from CaCl2 and NaC5H2R3-1,2,4. The crystal structures of 1-Ba, 2-Ba, and 4-Ca have been determined.
引用
收藏
页码:1931 / 1936
页数:6
相关论文
共 18 条
[1]   ENCAPSULATED ALKALINE-EARTH METALLOCENES .5. KINETIC STABILIZATION OF MONO[TETRAISOPROPYLCYCLOPENTADIENYL]CALCIUM COMPLEXES [J].
BURKEY, DJ ;
ALEXANDER, EK ;
HANUSA, TP .
ORGANOMETALLICS, 1994, 13 (07) :2773-2786
[2]  
BURKEY DJ, 1996, ADV ORGANOMET CHEM, V40, P117
[3]   LIGAND INFLUENCES ON STRUCTURE AND REACTIVITY IN ORGANOALKALINE-EARTH CHEMISTRY [J].
HANUSA, TP .
CHEMICAL REVIEWS, 1993, 93 (03) :1023-1036
[4]   Structure of a benzylcalcium diastereomer: An initiator for the anionic polymerization of styrene [J].
Harder, S ;
Feil, F ;
Weeber, A .
ORGANOMETALLICS, 2001, 20 (06) :1044-1046
[5]   Formation and crystal structures of a monomer-dimer pair of mono(cyclopentadienyl) calcium complexes, [C5(t-Bu)3H2]2CaI(THF)2 and {[C5(t-Bu)3H2]2CaI(THF)}2 [J].
Harvey, MJ ;
Hanusa, TP ;
Young, VG .
JOURNAL OF ORGANOMETALLIC CHEMISTRY, 2001, 626 (1-2) :43-48
[6]   Mono(cyclopentadienyl) complexes of calcium, strontium, and barium, {[C5(SiMe3)3H2](Ca,Sr,Ba)I(thf)n}x.: Influence of alkali-metal cations on ligand exchange reactions [J].
Harvey, MJ ;
Hanusa, TP .
ORGANOMETALLICS, 2000, 19 (08) :1556-1566
[7]  
Jutzi P, 1998, METALLOCENES: SYNTHESIS - REACTIVITY - APPLICATIONS, VOLS 1 AND 2, P3
[8]  
McCormick M. J., 1992, J AM CHEM SOC, V114, P3393
[9]   Approaches to alkaline earth metal-organic chemical vapor deposition precursors.: Synthesis and characterization of barium fluoro-β-ketoiminate complexes having appended polyether "lariats" [J].
Neumayer, DA ;
Belot, JA ;
Feezel, RL ;
Reedy, C ;
Stern, CL ;
Marks, TJ .
INORGANIC CHEMISTRY, 1998, 37 (21) :5625-5633
[10]  
Sitzmann H, 2002, ANGEW CHEM INT EDIT, V41, P2315, DOI 10.1002/1521-3773(20020703)41:13<2315::AID-ANIE2315>3.0.CO