共查询到20条相似文献,搜索用时 31 毫秒
1.
Christopher S. Griffith Brian W. Skelton Allan H. White 《Journal of organometallic chemistry》2005,690(14):3410-3421
The reactivity of [Ru3Mo(μ4-η2-CC)(μ-CO)3(CO)2(η-C5H4R)3(η-C5H5)] (R = H; Me) have been investigated, initially to elucidate the nature of the starting material, and, latterly, to define the reactivity of an interesting ethane-1,2-bis(ylidyne) species. While the mixed RuMo clusters were unreactive towards simple electrophiles and carbonyl substitution by phosphine ligands they did react with atmospheric oxygen or carbon monoxide to give substantially different products. In all instances oxygen was incorporated either at the metal centre or at the C2 fragment. High-pressure carbonylations yielded [Ru3(μ-CO)3(η-C5H5)3(μ3-C-C(O)O{Ru(CO)2(η-C5H5)})] and [{Ru2(μ-CO)(CO)2(η-C5H4Me)2}(μ4-η2-CC){Ru(CO)(η-C5H4Me)Mo(η-C5H5)(=O)(μ-O)}], an ethane-1,2-bis(ylidene) complex, this exemplifying a relatively rare raft geometry which further reacted with Cl2CCCl2 to give [Mo3(μ4-C2(Ru(CO)2(η-C5H4Me))(CO)(μ-CO)(η-C5H5)3(Cl)2] having a similar geometry and undergone halogenation. In order to extend the extant examples of these raft clusters we explored the reaction of [{Ru(CO)2(η-C5H4R)2}2(μ-C2)] with [{Ru(CO)2(η-C5H5)2}2] to provide a rational synthetic pathway leading to very reactive [Ru(μ4-η2-CC)(μ2-CO)2(CO)4(η-C5H4Me)2(η-C5H4R)2] rafts. 相似文献
2.
《Journal of organometallic chemistry》1986,299(3):C51-C55
The coupling of [Ru(CO)2L(η4-cot)] (L = CO or PPh3, cot = cyclooctatetraene) with [Fe(CO)3(η5-cyclohexadienyl)]+ or [Fe{P(OMe)3}(NO)2(η3-allyl)]+ yields respectively the dimetallic species [Ru(CO)2L(η2,η3-C8H8{Fe(CO)3(η4-C6H7)}] (3) and the allyl-substituted derivative [Ru(CO)2L(η5-C8H8CH2C(Me)CH2)][PF6] (5) whose X-ray structure is reported; paramagnetic [Co(η-C5H5)2] and [Ru(CO)3(η5-cyclohexadienyl)]+ give diamagnetic [Ru(CO)3(η4-C6H7C5H6(o-C5H5)] (8) via CC bond formation and one-electron reduction. 相似文献
3.
Limin Han Guangbin Zhang Ning Zhu Ruijun Xie Quanling Suo Meihua Luo Linhong Weng 《Journal of Cluster Science》2010,21(4):789-801
Two novel bimetallic complexes, [Cr(CO)3(η
6-C6H5)–C≡C–C6H4–Fc] (Fc = C5H5FeC5H4] (1) and [Cr(CO)3(η
6-C6H5)–C ≡ C–Fc–C(CH3)2–Fc] (3), were synthesized by the Sonogashira coupling reaction. By using of (1) and (3) as ligands to react with Co2(CO)8, two others novel polymetallic complexes, [Cr(CO)3(η
6-C6H5){Co2(CO)6-η
2-μ
2-C≡C–}–C6H4–Fc] (2) and [Cr(CO)3(η
6-C6H5){Co2(CO)6-η
2-μ
2-C≡C–}Fc–C(CH3)2–Fc] (4) were obtained. Four carbonyl complexes were characterized by elemental analysis, FT-IR, NMR and MS. The molecular structures
of complexes (1), (2) and (4) were determined by single crystal X-ray diffraction. The interactions among the ferrocenyl,
Cr(CO)3 and Co2(CO)6-η
2-μ
2-C≡C– units were investigated by cyclic voltammetry. 相似文献
4.
Visible light irradiation of the [(η-C6H7)Fe(η-C6H6)]+ cation (1) in CH2Cl2 in the presence of alkyl-substituted benzenes results in arene exchange forming the [(η5-C6H7)Fe(η-C6R6)]+ cations (2a–d: C6R6 is toluene, p-xylene, mesitylene, and durene). The mixed bis(arene) [(η-C6H6)Fe(η-C6R6)]2+ iron complexes (3a–d) were synthesized by hydride ion abstraction from 2a–d by [Ph3C]+.
Dedicated to Academician G. A. Abakumov on the occasion of his 70th birthday.
Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 9, pp. 1864–1865, September, 2007. 相似文献
5.
Muna R. A. Al-Mandhary Radchada Buntem Cheryl L. Doherty Andrew J. Edwards John F. Gallagher Jack Lewis Chi-Keung Li Paul R. Raithby M. Carmen Ramirez de Arellano Gregory P. Shields 《Journal of Cluster Science》2005,16(2):127-150
The clusters [H2Os4M(CO)12eta6-C6H6)] (M=Os, Ru) may be deprotonated to generate anions [Os4M(CO)12eta6-C6H6)]2- which react with [M′eta6-C6H5R) (MeCN)3]2+(M′=Os, Ru; R=H, Me) to give the bicapped tetrahedral clusters [Os4(CO)12MM′eta6-C6H5R)2]. Whereas [Os4(CO)12M2eta6-C6H6)2] (M=Os, Ru) have one Meta6-C6H6) unit in a site connected to three other metals, {3}, and one in a site connected to four other metals, {4}, [Os4(CO)12OsRueta6-C6H6)2] has the Rueta6-C6H6) unit in the {3} site irrespective of whether the Os or Ru anion is capped. Coupling of these anions with Au2dppm yields [Os4M(CO)12eta6-C6H6)(Au2dppm)] (M=Os, Ru), which have the arene ligand in the axial site of a trigonal bipyramid and the digold unit capping two faces. Reduction of [H2Os5(CO)15] with K/Ph2CO and coupling with [Rueta5-C5H5)(MeCN)3]2+yields the monoanion [Os5(CO)15Rueta5-C5H5)]? which reacts with [AuPPh3]+ generating [Os5(CO)15Rueta5-C5H5)(AuPPh3)] with the “Ru(C5H5)” unit in the terminal {3} site. 相似文献
6.
Jian-Long Xia Wei-Cheng Xiong Gang Chen Guang-Ao Yu Shan Jin Sheng-Hua Liu 《Transition Metal Chemistry》2009,34(4):389-393
Abstract Formal [2 + 2 + 2] addition reaction of [Cp*Ru(H2O)(NBD)][BF4] (NBD = norbornadiene) with 4,4′-Diethynylbiphenyl generates [C9H9-η6-C6H4(RuCp*)–C6H4(RuCp*)-η6-C9H9][BF4]2. The reaction of [Cp*Ru(H2O)(NBD)][BF4] with 1,4-diphenylbutadiyne generates the unusual [2 + 2 + 2] additional organic compound Ph–C≡C–C9H8–Ph in addition to the organometallic compound [Cp*Ru(η6-C6H5–C≡C–C≡C–Ph)][BF4]. [C9H9-η6-C6H4(RuCp*)–C6H4(RuCp*)-η6-C9H9][BPh4]2 is generated after the reaction of compound [C9H9-η6-C6H4(RuCp*)–C6H4(RuCp*)-η6-C9H9][BF4]2 with Na[BPh4]. The structure of this compound was confirmed by X-ray diffraction. A possible approach to form Ph–C≡C–C9H8–Ph and [Cp*Ru(η6-C6H5–C≡C–C≡C–Ph)][BF4] is suggested.
Graphical Abstract Formal [2 + 2 + 2] addition reaction of [Cp*Ru(H2O)(NBD)]BF4 (NBD = norbornadiene) with 4,4′-Diethynylbiphenyl generates [C9H9-η6-C6H4(RuCp*)–C6H4(RuCp*)-η6-C9H9][BF4]2. The reaction of [Cp*Ru(H2O)(NBD)][BF4] with 1,4-diphenylbutadiyne simply generates unusual [2 + 2 + 2] additional organic compound Ph–C≡C–C9H8–Ph in addition to the organometallic compound [Cp*Ru(η6-C6H5–C≡C–C≡C–Ph)][BF4]. [C9H9-η6-C6H4(RuCp*)–C6H4(RuCp*)-η6-C9H9][BPh4]2 is generated after the reaction of compound [C9H9-η6-C6H4(RuCp*)–C6H4(RuCp*)-η6-C9H9][BF4]2 with Na[BPh4]. The structure of this compound was confirmed by X-ray diffraction. And the possible approach to form Ph–C≡C–C9H8–Ph and [Cp*Ru(η6-C6H5–C≡C–C≡C–Ph)][BF4] was suggested.
Electronic supplementary material The online version of this article (doi:) contains supplementary material, which is available to authorized users. 相似文献
7.
Michael I. Bruce Peter Hinterding Edward R. T. TiekinkBrian W. Skelton Allan H. White 《Journal of organometallic chemistry》1993,450(1-2)
Reactions between [Ru(thf)(PPh3)2(η-C5H5)]+ and lithium acetylides have given further examples of substituted ethynylruthenium complexes that are useful precursors of allenylidene and cumulenylidene derivatives. From Li2C4, mono- and bi-nuclear ruthenium complexes were obtained: single-crystal X-ray studies have characterised two rotamers of {Ru(PPh3)2(η-C5H5)}2(μ-C4), which differ in the relative cis and trans orientations of the RuLn groups. Protonation of Ru(CCCCH)(PPh3)2(η-C5H5) afforded the butatrienylidene cation [Ru(C=C=C=CH2)(PPh3)2(η-C5H5)]+, which reacted readily with atmospheric moisture to give the acetylethynyl complex Ru{CCC(O)Me}(PPh3)2(η-C5H5), also fully characterised by an X-ray structural study. 相似文献
8.
D. A. Loginov M. M. Vinogradov L. S. Shulpina A. V. Vologzhanina P. V. Petrovskii A. R. Kudinov 《Russian Chemical Bulletin》2007,56(10):2118-2120
The photochemical reaction of [(η5-C6H7)Fe(η-C6H6)]+ (1) with the [(η-9-SMe2-7,8-C2B9H10)]− anion followed by the treatment of the resulting ferracarborane (η-9-SMe2-7,8-C2B9H10)Fe(η5-C6H7) (2) with hydrochloric acid afforded the benzene complex [(η-9-SMe2-7,8-C2B9H10)Fe(η-C6H6)]+ (3). The reaction of cation 3 with ButNC produced the isonitrile complex [(η-9-SMe2-7,8-C2B9H10)Fe(tBuNC)3]+ (4). The structure of the complex [4]PF6 was established by X-ray diffraction.
Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 10, pp. 2046–2048, October, 2007. 相似文献
9.
D. G. Samsonenko O. A. Gerasko A. V. Virovets V. P. Fedin 《Russian Chemical Bulletin》2005,54(7):1557-1562
The compound of composition [{Mo3O4(H2O)6Cl3}2(Na2Cl⊂ C30H30N 20O10)]Cl3⋅14H2O (1) was prepared by evaporation of a hydrochloric acid solution containing NaCl, the trinuclear aqua complex [Mo3O4(H2O)9]4+, and the macrocyclic cavitand cucurbit[5]uril (C30H30N20O10). X-ray diffraction analysis demonstrated that the cucurbit[5]uril molecule is closed on both sides by the cluster cations
through hydrogen bonding between the CO groups of the cucurbit[5]uril portals and the aqua ligands of the oxo cluster. The
inner cavity of the supramolecular adduct includes an unusual ionic associate Na+...Cl...Na+. The sodium cations are coordinated by five carbonyl oxygen atoms of each portal of the macrocycle. Compound 1 is the first structurally characterized complex, in which the macrocyclic cucurbit[5]uril ligand is directly coordinated
to the alkali metal cation.
Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 7, pp. 1513–1517, July, 2005. 相似文献
10.
Zhi-Hong Ma Li-Juan Tian Su-Zhen Li Zhan-Gang Han Xue-Zhong Zheng Jin Lin 《Transition Metal Chemistry》2012,37(2):135-140
Three diiron carbonyl complexes, namely [(η
5-C5H4)(η
3-C(CH2)2)]Fe2(CO)5 (1), [(C2H5)2C(η
5-C5H4)2]Fe2(μ-CO)2(CO)2 (2), and [(CH2)4C(η
5-C5H4)(η
5-C5H3)(C5H9)]Fe2(μ-CO)2(CO)2 (3), have been synthesized by the reactions of C5H4C(Me)2, C5H4C(Et)2, and C5H4C(CH2)4, respectively, with Fe(CO)5 in refluxing xylene. The complexes have been characterized by elemental analysis, IR, and 1H NMR spectra. The molecular structures of the complexes have been determined by single-crystal X-ray diffraction. The structures
of the complexes indicate that fulvenes can be bound to transition metal centers by diverse modes. 相似文献
11.
[MoCl(CO)3(η5-C5H5)] on photolysis with allyl or crotyl halides C5H4RX gives MoIV complexes [MoX2(CO)(η3-C3H4R)(η5-C5H5)] (R = H, X = Cl, Br, I; R = Me, X = Cl, Br). [WCl(CO)3(η5-C5H5)] under similar conditions gives trihalides [WX3(CO)2(η5-C5H5)] (X = Cl, Br) on reaction with C3H5Cl and C3H5Br while [WCl(CO)3(η5-C5H4SiMe3)] and [CrI(CO)3(η5-C5H5)] react with allyl chloride to give [WCl3(CO)2(η5-C5H4SiMe3)] and [CrCl2(η5-C5H5)] respectively. 相似文献
12.
《Journal of organometallic chemistry》1990,381(2):C47-C51
[Fe(η-C5Me5)(CO)2(OH2)]+ BF4- (2a) reacts with alkenes and alkynes to give the new complexes [Fe(η-C5Me5)(CO)2(alkene)]+ BF4- and [Fe(η-C5Me5)(CO)2(alkyne)]+ BF4-. The crystal structure of the ruthenium analogue [Ru(η-C5Me5)(CO)2(OH2)]+ CF3SO3- (2b) is described. 相似文献
13.
Jin Lin Zhi-Hong Ma Fang Li Ming-Xia Zhao Xiao-Huan Liu Xue-Zhong Zheng 《Transition Metal Chemistry》2009,34(8):855-859
Abstract
Reactions of the pyridyl side-chain-functionalized cyclopentadiene [C5H5CR2(CH2C5H4N)] [R 2 = Et2 (1), (CH2)4 (2)] with Ru3(CO)12 in refluxing xylene gave the new intramolecular C–H activated trinuclear product [μ-(C5H3N)CH2C(C2H5)2(C5H4)Ru(CO)]2Ru(CO)2 (3) and the normal dinuclear metal complex [(C5H4N)CH2C(CH2)4(C5H4)Ru(CO)]2(μ-CO)2 (4). The structures of the trinuclear complex 3 and dinuclear complex 4 were characterized by elemental analysis, IR spectra, 1H-NMR and X-ray diffraction. 相似文献14.
《Journal of organometallic chemistry》1986,312(2):c21-c23
Nucleophilic addition to a carbonyl ligand has been shown to compete with attack at the metal or dienyl ring in the reactions of [Fe(CO)3(1–5-η-dienyl)]+ cations with iodide ion. Thus, the novel acyl iodide complex [Fe(CO)2(COI)(1–5-η-C6H7)] is found to be a major product from the reaction of [Fe(CO)3(1–5-η-C6H7)]+ with I− in nitromethane or acetone solvents. The other major initial product is the ring adduct [Fe(CO)3(1–4-η-IC6H7)]. Exposure of the acyl iodide species to light causes its rapid decomposition. Analogous behaviour towards I− is shown by the related [Fe(CO)3(1–5-η-C7H9)]+ and [Fe(CO)3(1–5-η-2-MeOC6H6)]+ cations. 相似文献
15.
Saifun Nahar John E. Davies Gregory P. Shields Paul R. Raithby 《Journal of Cluster Science》2010,21(3):379-396
Reaction of the [Rh(η5-C5Me5)(NCMe)3]2+ (1) dication with the hexaosmium [Os6(CO)17]2− (2) dianion leads to the initial formation of [Os6(CO)17Rh(η5-C5Me5)] (3). This cluster readily adds CO to form [Os6(CO)18Rh(η5-C5Me5)] (4) which has been characterised crystallographically. 3 also adds dihydrogen to give [Os6H2(CO)17Rh(η5-C5Me5)] (5) and undergoes a substitution reaction with PPh3 to form [Os6(CO)16(PPh3)Rh(η5-C5Me5)] (6). With the [Ru6(CO)18]2− (7) dianion, [Rh(η5-C5Me5)(NCMe)3]2+ (1) reacts to form three mixed-metal clusters [Ru5(CO)15Rh(η5-C5Me5)] (8), [Ru6(CO)18Rh(η5-C5Me5)] (9) and [Ru6(CO)18Rh2(η5-C5Me5)2] (10). The clusters have been characterised spectroscopically and the structures of 8 and 10 have been confirmed crystallographically. The cluster 8 undergoes a substitution reaction with P(OMe)3 to form the disubstituted product [Ru5(CO)13(P(OMe)3)2Rh((η5-C5Me5)] (11) which has also been characterised crystallographically. 相似文献
16.
《Journal of organometallic chemistry》1991,402(3):C50-C55
[Mo(CO)4(η5-C7H9)]+ (1) reacts with acetonitrile to give [Mo(CO)2(NCMe)3(η3-C7H9)]+ (3), which is precursor of a wide reange of η5-cycloheptadienyl complexes [Mo(CO)2L2(η5-C7H9)]+ [6, L = PPH3; 7, L2 = Ph2PCH2PPh2; 8, L2 = 1,3-cyclohexadiene; 9, L2 = 2,2′-dipyridyl]; 9 reacts reversibly with NCMe to give [Mo(CO)2(NCMe)(dipy)(η3-C7H9)]+ (10). 相似文献
17.
T. Yu. Orlova Yu. S. Nekrasov P. V. Petrovskii M. G. Ezernitskaya B. V. Lokshin M. Kh. Minacheva L. A. Strunkina O. L. Lependina T. V. Magdesieva S. V. Milovanov K. P. Butin 《Russian Chemical Bulletin》1997,46(5):1018-1021
The reaction of Cp2MCl2 complexes (M=Ti and Zr) with 2 equiv. of (OC)3Mn(η1,η5-C5H4)Fe(CO)2(η5-C5H4COONa) results in the formation of the pentanuclear complexes (OC)3Mn(η1,η5-C5H4)Fe(CO)2(η5-C5H4CO2)]2M(η5-C5H5)2, which are characterized by IR and1H NMR spectroscopy and cyclic voltammetry.
Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 5, pp. 1055–1058, May, 1997. 相似文献
18.
Nathan C. Tice Chad A. Snyder Andrew Z. Preston Marika B. Wieliczko Jason O. E. Young Daniel F. Hinson 《Transition Metal Chemistry》2012,37(2):141-147
A series of 1,2-diacyl cyclopentadienyl tricarbonyl manganese and rhenium complexes, [M(CO)3{η5-1,2-C5H3(CO-(R)2}] (3a–c and 4a–b), were isolated utilizing a straightforward, 3-step route. The synthetic pathway began with a 1,2-diacyl cyclopentadiene
(fulvene), followed by the formation of its corresponding thallium salt and transmetallation with the appropriate pentacarbonyl
metal bromide. X-ray crystallographic analysis and high-accuracy mass spectrometry confirmed the structures of the both the
4-methoxyphenyl and 4-chlorophenyl diacyl rhenium complexes, [Re(CO)3{η5-1,2-C5H3(CO-(4-OCH3)C6H4)2}] (4a) and [Re(CO)3{η5-1,2-C5H3(CO-(4-Cl)C6H4)2}] (4b). Diacyl complexes 3a–c and 4a–b were then ring-closed with hydrazine hydrate to form their corresponding pyridazine complexes, [M(CO)3{η5-1,2-C5H3(1,4-(R)2N2C2}] (5a–c and 6a–b), in good yields (60–83%). The pyridazyl ligands were found to be relatively labile, and recrystallization of the target
complexes 5a–c and 6a–b afforded only the free pyridazine ligands. 相似文献
19.
《Journal of Coordination Chemistry》2012,65(16):2688-2700
[Ru(CO)(PPh3)2(η3-O,N3,S-TSC1)] (1), [Ru(Cl)(CO)(PPh3)2(η2-N3,S-TSC2)] (2), and [Ru(Cl)(CO)(PPh3)2(η2-N3,S-TSC3)] (3) have been prepared by reacting [Ru(H)(Cl)(CO)(PPh3)3] with the respective thiosemicarbazones TSC1 (2-hydroxy-3-methoxybenzaldehyde thiosemicarbazone), TSC2 (3-hydroxybenzaldehyde thiosemicarbazone), and TSC3 (3,4-dihydroxybenzaldehyde thiosemicarbazone) in a 1?:?1 M ratio in toluene and all of the complexes have been characterized by UV–vis, FT-IR, and 1H and 31P NMR spectroscopy. The spectroscopic studies showed that TSC1 is coordinated to the central metal as a tridendate ligand coordinating via the azomethine nitrogen (C=N), phenolic oxygen, and sulfur to ruthenium in 1, whereas TSC2 and TSC3 are coordinated to ruthenium as a bidentate ligand through azomethine nitrogen (C=N) and sulfur in 2 and 3. Oxygen sensitivities of 1–3 and [Ru(Cl)(CO)(PPh3)2(η2-N3,S-TSC4)] (4), and antimicrobial activities of 1–3 have been determined. 相似文献
20.
Paul R. Raithby Jack Lewis Catherine A. Morewood M. Carmen Ramirez de Arellano Gregory P. Shields 《Journal of Cluster Science》2006,17(1):13-26
Thermolysis of [Ru3(CO)12] in cyclohexene for 24 h affords the complexes [Ru(CO)3(η4-C6H8)] (1), [Ru3H2(CO)9(μ2-η1:η2:η1-C6H8)] (2), [Ru4(CO)12(μ4-C6H8)] (3) [Ru4(CO)9(μ4-C6H8)(η6-C6H6)] (4a and 4b, two isomers) and [Ru5(CO)12(μ4-η2-C6H8)(η4-C6H8)] (5), where 1, 3, 4a and 4b have been previously characterised as products of the thermolysis of [Ru3(CO)12] with cyclohexa-1,3-diene. The molecular structures of the new clusters 2 and 5 were determined by single-crystal X-ray crystallography, showing that two conformational polymorphs of 5 exist in the solid state, differing in the orientation of the cyclohexa-1,3-diene ligand on a ruthenium vertex. 相似文献