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1.
《Polyhedron》1987,6(12):2067-2071
Reactions between diphenyl(vinyl)phosphine and the compounds [FeW(μ-CC6H4Me-4)(CO)5(η5-C5Me5)] and [FeMo(μ-CC6H4Me-4)(CO)6(η5-C5H5)] result in a coupling of the vinyl and p-tolylmethylidyne groups at the dimetal centres to produce the PPh2 · CH · CH2 · C(C6H4Me-4) fragment, which bridges the metal-metal bonds. This was confirmed by an X-ray diffraction study on [FeW{μ-PPh2 · CH · CH2 · C(C6H4Me-4)}(CO)5(η5-C5Me5)]. 相似文献
2.
T. Yu. Orlova Yu. S. Nekrasov P. V. Petrovskii M. G. Ezernitskaya Z. A. Starikova O. L. Lependina 《Russian Chemical Bulletin》2008,57(1):63-67
The metallation of the η5-C5H5(CO)2Fe-η1,η5-C5H4Mn(CO)3 complex with BunLi (THF, ?78 °C) followed by the treatment of the lithium derivative with Ph2PCl afforded the η5-Ph2PC5H4(CO)2Fe-η1,η5-C5H4Mn(CO)3 complex. The reaction of the latter with η5-C5H5(CO)3WCl in the presence of Me3NO produced the trinuclear complex η5-C5H5Cl(CO)2W-η1,η5-(Ph2P)C5H4(CO)2Fe-η1,η5-C5H4Mn(CO)3. The structure of the latter complex was established by IR, UV, and 1H and 31P NMR spectroscopy and X-ray diffraction. The reaction of MeSiCl3 with three equivalents of LiC5H4(CO)2Fe-η1,η5-C5H4Mn(CO)2PPh3 gave the hexanuclear complex MeSi[C5H4(CO)2Fe-η1,η5-C5H4Mn(CO)2PPh3]3. 相似文献
3.
The reaction of μ-alkyne-bridged dimolybdenum compound [Mo2(μ-C2HPh)(CO)4(η5-C5H4C(O)Me)2] 1 with Co2(CO)8 in refluxing toluene gave a new butterfly compound [Co2Mo2(μ4-C2HPh)(μ-CO)4(CO)4(η5-C5H4C(O)Me)2] 2 which was fully characterized by elemental analysis, IR, 1H NMR and X-ray single crystal diffraction techniques. 2 crystallized in monoclinic system, C30H20Co2Mo2O10, Mr=850.23, space group P21/a(#14), a=14.165(5), b=12.498(2), c=16.204(2)(A), β = 96.50(2)°, V = 2850(1)(A)3, Z = 4, Dc = 1.981 g cm-3, F(000)=1672, μ(MoKα)=20.41 cm-1, final R=0.030, Rw=0.039 for 4831 observable reflections with I>2σ(I). The structure contains a Co2Mo2 butterfly core, and each Mo-Co bond is spanned by an asymmetric semi-bridging carbonyl ligand. 相似文献
4.
《Journal of organometallic chemistry》1989,369(2):C21-C22
The salts [Fe2η5,η5-C5H4CH{NMe3)CH(NMe2)C5H4}(CO)2(μ-CO)2][X] (X = I or SO3CF3) are the synthetic precursors to a wide range of [Fe2(η-C5H5)2(CO)2(μ-CO)2] derivatives in which the two cyclopentadienyl ligands are joined by a two-carbon bridge. 相似文献
5.
《Journal of organometallic chemistry》1991,406(3):C20-C24
Insertion of platinum bis(phosphane) fragments into a 1,2-dihydrophosphete ring lead to complexes derived from a 1-phosphabuta-1,3-diene species. 相似文献
6.
Shariff E. Kabir Tasneem A. Siddiquee Edward Rosenberg Ryan Smith Michael B. Hursthouse K. M. Abdul Malik Kenneth I. Hardcastle Mandana Visi 《Journal of Cluster Science》1998,9(2):185-199
The reactions of [Ru3(CO)10(μ-dppm)] 4 with quinolines afforded [Ru3 (μ-CO)(CO)7{μ3-η2-P(C6H5)CH2P(C6H5)2)}{μ-η2-C9H5(R)N}] (8, R = 4-Me; 9, R = H) as the major products along with small amounts of known compound [Ru3(CO)9{μ3-η3-P(C6H5)CH2P(C6H5)(C6H4)}] 5. The molecular structure of 8 has been determined by single crystal X-ray studies. The reaction of 5 with 4-methylquinoline in refluxing cyclohexane afforded 8 and two known dinuclear compounds, [Ru2(CO)6{μ-CH2P(C6H5)(C6H4)P(C6H5}] 10 and [Ru2(CO)6 {μ-(C6H4)P(C6H5)(CH2)P(C6H5}] 11, in 40, 12, and 10% yields, respectively. The compounds 10 and 11 are also formed from the thermolysis of 4 in addition to the major compound 5. The solid state structure of the previously reported [Ru3(CO)10(η-H){μ-η2-C9H6N}] 2a is also reported for comparison. 相似文献
7.
《Journal of organometallic chemistry》1986,303(3):417-427
Further studies of the reactions between ruthenium σ-acetylide complexes and electrophilic olefins CHArC(CN)(X) (Ar = C6H4NO2-4, Ph; X = CN; Ar = C6H4NO2-4, X = CO2Et) have shown the formation of allylic, butadienyl, and in one case, cyclobutenyl complexes. The direction of addition is such that the =C(CN)(X) group becomes attached to the α-carbon of the acetylide. This is confirmed by the X-ray structure of Ru{C[C(CN)2]CPhCH(C6H4NO2-4)}(dppe)(η-C5H5) · 0.5CH2Cl2, cr with cell dimensions a 28.81(1), b 9.661(2), c 30.782(8) Å, β 95.02 (3)°, and Z = 8. The structure was refined by a least-squares procedure with the use of 4291 statistically significant reflections [I > 2.5σ(I)] to R 0.075 and Rw 0.076. 相似文献
8.
《Journal of organometallic chemistry》1995,503(2):C46-C47
The reaction of [Fe(CO)2(PPh3)2{η2-SCNC(O)Ph}] with [Co(η-C5H5)(PPh3)2] in benzene solution at room temperature results in the facile cleavage of the CS bond of the SCNC(O)Ph ligand to give [{Co(η-C5H5)}2{Fe(CO)2(PPh3)}(μ3-S{μ3-CNC(O)Ph}], whereas [Fe(CO)2(PPh3)2(η2-SCNMe)] gives [{Co(η-C5H5)} 22{Fe(CO)(CNMe)(PPh3)(μ3-S)(μ3-CO)]. The structure of [{Co(η-C5H5)}2{Fe(CO)2(PPh3)} (μ3-CNC(O)Ph}] has been confirmed by X-ray diffraction. 相似文献
9.
《Journal of organometallic chemistry》1987,323(1):83-89
The complexes Fe3(CO)8(PPh3)(μ3-η2- ⊥ -EtC2Et) and (η5-C5H5)NiFe2(CO)5(PPh3)(η3-η2- ⊥-C2But) have been obtained by treating Fe3(CO)9(C2Et2) or (Cp)NiFe2(CO)6(C2But) with PPh3 under mild conditions; the substituted clustes have been characterized spectroscopically. Structures are proposed in which the phosphine is on the unique metalatom σ-bonded to the alkyne or acetylide moiety. Replacement of CO by PPh3 ligands rather than by addition, is observed for the formally unsaturated Fe3(CO)9(C2Et2). Reorientation of the acetylide was expected for (Cp)NiFe2(CO)6(C2But) upon substitution, but was not observed. 相似文献
10.
Rainer Bartsch Christian Müller Axel Fischer Peter G. Jones 《Phosphorus, sulfur, and silicon and the related elements》2013,188(1-4)
Abstract Syntheses and structures of penta- and hexaphosphorus analogues of ferrocene have been described recently1. Unlike their simple ferrocene analogues, these complexes have further ligating potential towards other transition metal centres by virtue of the availability of the ring phosphorus lone-pair electrons that are not involved in the η5-coordination. We now describe the first examples of coordination compounds of the triphospha-ferrocene [Fe(η5-C5Me5) (η5-C2 tBu2P3]. In the ruthenium complex [Fe(η5-C5Me5)(η5-C2 tBu2P3) Ru3(CO)9] 2 two adjacent phosphorus atoms of the η5-C2 tBu2P3 ring are interlinked by a ruthenium carbonyl cluster in which all three ruthenium atoms interact with the phosphorus atoms. The tetrametallic nickel complex [Fe(η5-C5Me5)(η5-C2 tBu2P3)Ni(CO)2]2 3 represents the first example of intermolecular interlinkage of two phospha-ferrocene systems by two metal centres. 相似文献
11.
《Journal of organometallic chemistry》1998,571(2):289-295
Antimony is reduced when [SbPh2BrO]2 is treated with Na[Mo(CO)3(η5-C5H5)] to produce [μ-SbPh2]2[Mo(CO)2(η5-C5H5)]2. A structure determination shows diphenylstibido groups bridging between two Mo(CO)2(η5-C5H5) moieties giving a central ‘butterfly’ shaped Sb2Mo2 ring. The cyclopentadiene rings are trans to each other and Mo–Sb and Sb–Sb separations are both short. An iron analogue could not be obtained from [SbPh2BrO]2 and Na[Fe(CO)2(η5-C5H5)] but a mixture of SbPh[Fe(CO)2(η5-C5H5)]2 and SbPh2[Fe(CO)2(η5-C5H5)] was obtained using SbPh2Cl. An X-ray structure for SbPh[Fe(CO)2(η5-C5H5)]2 shows an open stibinidine structure. 相似文献
12.
Yu. K. Gun'ko V. K. Bel'skii G. L. Soloveichik B. M. Bulychev 《Russian Chemical Bulletin》1993,42(6):1086-1089
X-ray structural analysis of a samarium triscyclopentadienyl complex, Cp3Sm·OC4H8 (1), and a samarium ionic salt, [Li(Et2O)2][Cp3Sm(-Cl)SmCp3] (2), was carried out. In both compounds coordination saturation is achieved by coordination of the THF molecule (in1) or the Cl– anion (in2) to the monomeric fragment Cp3Sm. An unusual coordination of the Li+ cation was observed in complex2: it is bound to one of the 5-type cyclopentadienyl rings in addition to two ether molecules.Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 6, pp. 1129–1132, June, 1993. 相似文献
13.
《Journal of organometallic chemistry》1987,330(3):415-428
The crystal and molecular structures of (η5-C5H5)Fe[η5--C5H4CCo3(CO)9] (1), Pna21, α 17.354, b 11.463, c 11.207 Å Z = 4, R = 0.053, Rw = 0.056 for 939 reflections (I>3σ(I)) at 293 K, and (η5-C5H5Fe[η5--C5H4CCo3(η5C5H5)3CH] (2), P21/n, a 13.807(9), b 11.254(4), c 13.991(9) Å, β 99.98(5)°, Z = 4, R = 0.033 and Rw = 0.033 for 3051 observed reflections (I>3σ(I)) at 180 K, have been determined by X-ray methods.The results provide a detailed characterisation of related tricobalt-carbon complexes directly bound to ferrocene residues. In 1 the ferrocenyl moiety tops the pyramidal CCo3 cluster core, while in 2 the CCo3C core is bipyramidal with a ferrocenyl substituent on one capping carbon atom and a hydrogen atom at the other. In both cases the ferrocenyl group is tilted towards one cobalt atom of the cluster core, a distortion believed to be the consequence of the non-degeneracy of the carbyne p(π) orbitals resulting from a cooperative π-interaction between the clusters and the ferrocenyl substituents. 相似文献
14.
《Journal of organometallic chemistry》1986,310(2):C33-C35
An X-ray structure determination on Fe{C(CF3)2(OH)}(CO)2(η-C5H5), obtained by protonating the product from Na[Fe(CO)2(η-C5H5)] and (CF3)2CO, showed the crystal to contain discrete molecules. There are substantial intramolecular OH…FCF2 bonds but only weak intermolecular OH…O interactions. Important distances are: FeC 2.060(6), CCF3 1.505(9), COH 1.435(7), CF…HO 2.131(6), 2.485(6) Å. 相似文献
15.
《Journal of organometallic chemistry》1987,335(3):365-378
16.
《Journal of organometallic chemistry》1986,299(3):C38-C42
Trifluoromethyl isocyanide adds to the metal—metal triple bond of bis[dicarbonyl(η-pentamethylcyclopentadienyl)molybdenum] forming Mo2Cp2(CO)4(η2-μ-CNCF3) as the first isolated product. Further addition of trifluoromethyl isocyanide at 0°C leads to the formation of [Mo(CO)2(μ-CNCF3)(η-Cp)]2, which according to crystal structure analysis contains two bridging CF3NC ligands. During the isomerization of this compound in dichloromethane solution at room temperature or in the solid state above 110°C molybdenum—molybdenum bond cleavage and carbon—carbon bond formation occurs, leading to Cp(CO)2Mo(μ-F3CNCCNCF3)Mo(CO)2Cp, which contains 1,1,1,6,6,6-hexafluoro-2,5-diaza-2,3,4-hexatriene as bridging ligand. 相似文献
17.
《Journal of organometallic chemistry》1987,334(3):C39-C42
Thermolysis of cyclooctaselenadiazole (2) yields only selenium-containing products. Compound 2 reacts with CpCo sources to give [(η5-C5H5)CO]2(μ2η3,η2-C8H6Se), a fluxional compound whose structure has been determined by X-Ray crystallography. 相似文献
18.
The reaction of PtRu5(CO)16(μ6-C),1 with 3-hexyne in the presence of UV irradiation produced two new electron-rich platinum-ruthenium cluster complexes PtRu5(CO)13(μ-EtC2Et)(μ3-EtC2Et)(μ5-C),2 (20% yield) and Pt2Ru6(CO)17(μ-η5-Et4C5)(μ3-EtC2Et) (μ6-C),3 (7% yield). Both compounds were characterized by single-crystal X-ray diffraction analyses. Compound2 contains of a platinum capped square pyramidal cluster of five ruthenium atoms with the carbido ligand located in the center of the square pyramid. A EtC2Et ligand bridges one of the PtRu2 triangles and the Ru-Pt bond between the apical ruthenium atom and the platinum cap. The structure of compound3 consists of an octahedral PtRu5 cluster with an interstitial carbido ligand and a platinum atom capping one of the PtRu2 triangles. There is an additional Ru(CO)2 group extending from the platinum atom in the PtRu5 cluster that contains a metallated tetraethylcyclopentadienyl ligand that bridges to the platinum capping group. There is also a EtC2Et ligand bridging one of the PtRu2 triangular faces to the capping platinum atom. Compounds2 and3 both contain two valence electrons more than the number predicted by conventional electron counting theories, and both also possess unusually long metal-metal bonds that may be related to these anomalous electron configurations. Crystal data for2, space group Pna21,a=19.951(3) Å,b=9.905(2) Å,c=17.180(2) Å,Z=2, 1844 reflections,R=0.036; for3, space group Pna21,α=13.339(1) Å,b=14.671(2) Å,c=11.748(2) Å, α=100.18(1)°, β=95.79(1)°, γ=83.671(9)°,Z=2, 3127 reflections,R=0.026. 相似文献
19.
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
20.
鉴于富勒烯C60所具有的缺电子烯烃的特性1以及CpCo(PPh3)2可与烯或炔反应生成钴杂环有机化合物,2,3 因此我们设想如果用C60代替烯、炔,令其与η5-RC5H4Co(PPh3)2(1) 或η5-RC5H4Co(PPh3)(PhC≡CPh)(2)反应,则应得到一类新型的富勒烯C60有机钴杂环化合物。然而与这一设想不同的是,上述反应并未得到预期的C60钴杂环有机物,所得到的却是另一类新型的有机钴C60衍生物(η2-C60)(η5-RC5H4)CoPPh3(3).此外,我们发现当3或2同I2反应时,可生成C60或PhC≡CPh配体被I2置换产物η5-RC5H4Co(PPh3)I2(4)。 相似文献