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1.
《Journal of organometallic chemistry》1987,320(2):C19-C22
The complex [(η5-C5H5)Fe(CO)(PPh3)CH2CH3] is shown by 1H NMR spectroscopy and an X-ray crystal structure analysis to adopt a single conformation with the methyl group residing between the cyclopentadienyl and carbon monoxide ligands. 相似文献
2.
3.
《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
4.
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
5.
《Journal of organometallic chemistry》1991,402(3):C56-C58
Complete self-recognition of chirality is observed in the Michael addition of the enolate derived from R,S-[η5-C5H5Fe(CO)(PPh3-COCH3] to the acryloyl complex R,S-[(η5-C5H5Fe(CO)(PPh3)-COCHCH2)] to generate exclusively the single diastereoisomer of the glutaroyl complex RR,SS-[(η5-C5H5)Fe(CO)(PPh3)COCH2]2CH2. 相似文献
6.
《Journal of organometallic chemistry》1990,381(1):C21-C25
The chiral aminoferrocenylphosphine [(η5-C5H4PPh2)(η5-C5H3(PPh2)CH(CH3)-N(CH3)CH2CH2N(CH3)2)Fe] (1) reacts with (H3C)2SAuCl to give neutral gold(I) complexes that are active catalysts for the enantioselective coupling of isocyanoacetate esters with aldehydes, forming dihydrooxazoles. The structure of the trimeric complex [(rac-1)2(AuCl)3] · Et2O has been determined by X-ray diffraction. 相似文献
7.
《Comptes Rendus de l''Academie des Sciences Series IIB Mechanics Physics Astronomy》1999,2(5-6):295-297
The synthesis of new bidentate métalloligands derived from tantalocene(C5Me5)(C5H4X)Ta(H2)(PPh2) (X = PPh2, 2P; X = CH2CH2NMe22N) and (C5Me5)(C5H4X)Ta(CO)(PPh2) 4(P,N) is described. When opposed to chromium unsaturated fragments the phosphino functionalised complexes 2P and 4P act as chelating bidentate ligands affording Ta(V) (C5Me5)(C5H4PPh2)Ta(CH2) (μ-PPh2)Cr(CO)4 or Ta(III) (C5Me5)(C5H4PPh2)Ta(CO)(μ-PPh2)Cr(CO)4 bimetallic complexes. The same reaction carried out starting from 2N gives rise to a μ-phosphido, μ-hydrido dibridged complex Cp*(C5H4CH2CH2NMe2)TaH(μ-H)(μ-PPh2)Cr(CO)4. 相似文献
8.
《Journal of Coordination Chemistry》2012,65(3):219-224
Abstract The trietheylaluminum based ferrocenylalane (η5?C5H5)Fe[η5?C5H4Al2(C2H5)4Cl] was prepared from the reaction of triethylaluminum with chloromercuriferrocene in toluene and characterized by single crystal X-ray diffraction. The compound crystallizes in the triclinic space group P 1 with unit cell dimensions a = 9.353(3) Å, b = 10.281(7) Å, c = 11.599(9) Å, α = 79.64(7)°, β = 69.41(6)°, γ = 84.33(4)°, and Z = 2 for Dc = 1.27 g cm?3. Full-matrix least-squares refinement has led to a final R factor of 0.068 based on 1866 independent observed reflections. The two diethylaluminum units are bridged by a chlorine atom and one carbon atom of a cyclopentadienyl group, thus forming an Al-Cl-Al-C ring. The four-membered ring is planar to within 0.02 Å. The Al-Cl distances are 2.404(4) Å and 2.266(5) Å. The Al-Cl-Al angle is 78.9(1)° while the Al-C-Al angle is 91.3(4)°. No significant aluminum-iron interaction is observed (Al… Fe = 3.137(4) Å). 相似文献
9.
D. P. Krut'ko M. V. Borzov V. S. Petrosyan L. G. Kuz'mina A. V. Churakov 《Russian Chemical Bulletin》1996,45(7):1740-1744
Several novel zirconium(iv) complexes with the chelating oxygen-containing cyclopentadienyl ligand, tetramethyl(2-methoxyethyl)cyclopentadiene, have been synthesized. [5:1-Tetra-methyl(2-methyl)cyclopentadienyl]trichlorozirconium (2), bis[5-tetramethyl(2-methoxyethyl)cyclopentadienyl]dichlorozirconium (3), [5-pentamethylcyclopentadienyl][5-tetra-methyl(2-methoxyethyl)cyclopentadienyl]dichlorozirconium (4), and [5-tetra-methyl(2-methylthioethyl)cyclopentadienyl][5-tetramethyl(2-methoxyethyl)-cyclopentadienyl]dichlorozirconium (5) have been prepared from the corresponding lithium cyclopentadienide (l). The crystal structure of cyclopentadienyl complex2 has been established by X-ray analysis. The coordination OZr bond in compound2 exists both in the crystalline state and in solutions. No coordination of this type was observed in complexes3–5. Synthesized complexes2–5 are discussed in comparison with their sulfur-containing analogs.Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 7, pp. 1828–1832, July, 1996. 相似文献
10.
The substituted sandwich complex crystallizes in monoclinic space groupP21/m withZ=2. Twinning to the (001) direction with the special conditionc
*/4a
* = cos
* causes systematic superposition of the reciprocal lattices of both domains and results in an apparent unit cell with double volume and the reflection condition (2h)kl, l=2n. The structure solution was obtained with the subset of intensity data for the predominant individuum and converged atR = 0.040,R
w
=0.046 for 832 independent observations and 122 variables. The molecules show disorder with respect to the crystallographic mirror plane. The structure is closely related to that of decamethylruthenocene. 相似文献
11.
《Journal of organometallic chemistry》1986,316(3):315-318
The complex t-Bu(η5-C5H5)FE(CO)2 has been treated with triphenylphosphine in refluxing THF to produce t-BuCO(η5-C5H5)Fe(CO)(PPh3). The large steric bulk of the t-butyl group suggests that this reaction should be faster than the reaction involving the methyl group, and a kinetic investigation illustrates this to be the case. The same steric bulk predicts that the reaction with SO2 should be slow, and indeed we have been unable to effect the related SO2 insertion reaction. Attempts to prepare the corresponding t-Bu(η5-C5H5)W(CO)3 led to formation of the related isobutyl complex. 相似文献
12.
13.
《Journal of organometallic chemistry》1986,299(3):341-345
The complex (η5-C5H5)Cr(CO)3Cp42 H5 has been made and its reactions with σ donor ligands L (L = (MeO)3P and (EtO)3P) and with SO2 studied. The alkyl phosphites give compounds of the composition (η5-C5H5)Cr(CO)2LC2H5, and sulfur dioxide gives the corresponding S-sulfinato (η5-C5H5)Cr(CO)3SO2C2H5. 相似文献
14.
《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
15.
《Journal of organometallic chemistry》1986,307(3):C55-C57
RuHCl(PPh3)3 reacts quantitatively with cycloheptatriene in CH2Cl2 at 35°C in 15 min to give Ru(η5-C7H9)Cl(PPh3)2 and PPh3. The major isomer adopts a conformation with inequivalent phosphorus ligands and no plane of symmetry through the C7H9 ligand, but rapid intramolecular scrambling with δG3 = 10.6 kcal mol−1 results in an averaged 1H, 13C, and 31P NMR spectrum at room temperature. RuHCl(PPh3)3 reacts with cyclohepta-1,3-diene to give initially Ru(η3-C7H11)Cl(PPh3)2, but in a subsequent reaction this is dehydrogenated to give Ru(η5-C7H9)Cl(PPh3)2. 相似文献
16.
17.
I. V. Shchirina-Eingorn L. N. Novikova N. A. Ustynyuk L. I. Denisovich M. G. Peterleitner 《Russian Chemical Bulletin》1996,45(7):1608-1610
The roe of oxidatively induced homolyhc scission a the C(sp3)-H bonds in the iron phenykychhexadienyl complexes Fe(5-6-PhC6H6)(5-C5H5) (1) depends on the spatial orientation of the Ph substitutent. In the case of the (1
endo
+) radical cation this process, resulting in the cationic biphenyl complex (Fe(6 -C6H5C6H5)(5-C5H5)]+ (2
+), is fast and proceeds for several minutes. In the case of the more stable radical cation (1
exo
+) the formation of 2+ is slow and takes tens minutes to complete.Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 7, pp. 1698–1700, July, 1996. 相似文献
18.
《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
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20.
《Tetrahedron: Asymmetry》1998,9(23):4219-4238
A wide variety of planar chiral cyclopalladated compounds of general formulae [Pd{[(η5-C5H3)–CHN–CH(Me)–C10H7]Fe(η5-C5H5)}Cl(L)] (with L=py-d5 or PPh3), [Pd{[(η5-C5H3)–CHN–CH(Me)–C10H7]Fe(η5-C5H5)}(acac)] or [Pd{[(R1–CC–R2)2(η5-C5H3)–CHN–CH(Me)–C10H7]Fe(η5-C5H5)}Cl] (with R1=R2=Et; R1=Me, R2=Ph; R1=H, R2=Ph; R1=R2=Ph; R1=R2=CO2Me or R1=CO2Et, R2=Ph) are reported. The diastereomers {(Rp,R) and (Sp,R)} of these compounds have been isolated by either column chromatography or fractional crystallization. The free ligand (R)-(+)-[{(η5-C5H4)–CHN–CH(Me)–C10H7}Fe(η5–C5H5)] (1) and compound (+)-(Rp,R)-[Pd{[(Et–CC–Et)2(η5-C5H3)–CHN–CH(Me)–C10H7]Fe(η5-C5H5)}Cl] (7a) have also been characterized by X-ray diffraction. Electrochemical studies based on cyclic voltammetries of all the compounds are also reported. 相似文献