Synthesis, structure and reactivities of the dinuclear μ-η1:η6-arylethynyl ruthenium complexes [Cp(PR3)2Ru(μ-η1:η6-C≡CC6H4Me-p)RuCp*]•Cl (R = Ph, Me; Cp = η5-C5H5, Cp* = η5-C5Me5).: The molecular structure of [Cp(PPh3)2Ru(μ-η1:η6-C≡CC6H4Me-p)RuCp*]•PF6

被引：5
|
作者：
Matsuzaka, H
Okimura, H
Sato, Y
Ishii, T
Yamashita, M
Kondo, M
Kitagawa, S
Shiro, M
Yamasaki, M
机构：
[1] Tokyo Metropolitan Univ, Dept Chem, Grad Sch Sci, Hachioji, Tokyo 1920397, Japan
[2] Rigaku Corp, Xray Res Lab, Akishima, Tokyo 1968666, Japan
来源：
JOURNAL OF ORGANOMETALLIC CHEMISTRY | 2001年 / 625卷 / 02期
关键词：
dinuclear complexes; ruthenium; arylethynyl; vinylidene; iodovinylidene; X-ray crystal structures;
D O I：
10.1016/S0022-328X(00)00811-1
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Treatment of [Cp(PR3)(2)Ru(C equivalent to CC6H4Me-p) (la, R = Ph Ib, R = Me; Cp = eta (5)-C5H5) with [Cp*Ru(mu (3). Cl)](4) (Cp* = eta (5)-C5Me5) selectively produced the novel dinuclear mu-eta (1):eta (6)- arylethynyl complex Cp(PR3)(2)Ru(mu-eta (1):eta (6)-C equivalent to CC6H4Me-p)RuCp*] (2 . Cl: 2a, R=Ph; 2b, R=Me). Protonation of 2 . OTf (OTf=OSO2CF3) by TfOH afforded the corresponding vinylidene complex [Cp(PR3)(2)Ru(mu-eta (1):eta (6)-C=CHC6H4Me-p)RuCp*]. [OTf](2) (3 . [OTf](2): 3a, R = Ph; 3b, R = Me), which regenerated 2 . OTf upon treatment with LiBHEt3. Reaction of 2a . Cl with I-2 and subsequent anion metathesis with AgBF4 produced the iodovinylidene complex [Cp(PPh3)(2)Ru(mu-eta (1):eta (6)-C=CIC6H4Me-p)RuCp*]. [BF4](2) (4 . [BF4](2)), whereas similar treatment of 2b . PF6 yielded the iodo/arylethynyl complex [Cp(I)(PMe3)(2)Ru(mu-eta (1):eta (6)-C equivalent to CC6H4Me-p)RuCp*]. [PF6](2) (5 . [PF6](2)). Substitution of one of the PPh3 ligands in 2a . OTf proceeded under I atm of CO to form [Cp(PPh3)(CO)Ru(mu-eta (1):eta (6)-C equivalent to CC6H4Me-p)RuCp*]. OTf (6 . OTf). The molecular structure of 2a . PF6 was determined by X-ray crystallography. (C) 2001 Elsevier Science B.V. All rights reserved.
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页码：133 / 139
页数：7
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