共查询到20条相似文献,搜索用时 0 毫秒
1.
Dale E. Wheeler Scott T. Hill Steven Milos John D. Williams Jason D. Johnson 《Journal of organometallic chemistry》1997,530(1-2):83-87
Cp* Ru(η6-C6H5CHO)+OSO2CF3− (1) (Cp* = C5Me5) reacts with substituted anilines forming ruthenium Schiff base complexes containing an η6-coordinated Cp* Ru+ group. The 2:1 reaction of 1 with 1,4-phenylenediamine yielded only the monocondensation product, whereas the 2:1 reaction of 1 with 1,4-xylylenediamine yielded the dicondensation product. 相似文献
2.
The reactions of [RuHCl(CO)(PPh3)3] and [(C6H6)RuCl2]2 with 2-benzoylpyridine have been examined, and two novel ruthenium(II) complexes – [RuCl(CO)(PPh3)2(C5H4NCOO)] and [RuCl2(C12H9NO)2] – have been obtained. The compounds have been studied by IR and UV–Vis spectroscopy, and X-ray crystallography. The molecular orbital diagrams of the complexes have been calculated with the density functional theory (DFT) method. The spin-allowed singlet–singlet electronic transitions of the compounds have been calculated with the time-dependent DFT method, and the UV–Vis spectra of the compounds have been discussed on this basis. 相似文献
3.
R.A. Al-Mandhary Muna Jack Lewis Paul R. Raithby 《Journal of organometallic chemistry》1997,530(1-2):247-250
The ionic coupling of [Os4H2(CO)12]2− with [Ru(η6-C6H6)(MeCN)3]2+ affords the neutral mixed metal cluster Os4Ru(μH)2(CO)12(η6-C6H6) 1. The reaction of 1 with trimethylphosphite leads to the initial formation of the addition product Os4Ru(μH)2(CO)12(η6-C6H6)P(OMe)3 2, but this complex rearranges in solution to give Os4Ru(μ-H)3(CO)12(μ3-η6-C6H5)P(OMe)3 3. An X-ray structure of 3 shows that the metal core of the cluster is a ruthenium-spiked Os4 tetrahedron, with one hydrogen atom from the arene having transferred to the Os4 core, and one arene carbon bridging an Os-Os edge, while the ring as a whole remains η6-bound to the Ru atom. 相似文献
4.
Massimo Di Vaira Fabrizio Mani Piero Stoppioni 《Journal of organometallic chemistry》2004,689(10):1757-1762
The reaction of [CpRu(CH3CN)3]PF6 with the bidentate ligands L-L=1,2-bis(diphenylphosphino)ethane, dppe, and (1-diphenylarsino-2-diphenylphosphino)ethane, dpadppe, affords mononuclear or dinuclear complexes of formula [CpRu(η2-L-L)(CH3CN)]PF6, [{CpRu(CH3CN)2}2(μ-η1:1-L-L)](PF6)2 and [{CpRu(CH3CN)}2(μ-η1:1-L-L)2](PF6)2 (L-L=dppe, dpadppe). All of the compounds are characterized by microanalysis and NMR [1H and 31P{1H}] spectroscopy. The crystal structure of [{CpRu(CH3CN)2}2(μ-η1:1-dppe)](PF6)2 has been determined by X-ray diffraction analysis. The complex exhibits a dppe ligand bridging two CpRu(CH3CN)2 fragments. 相似文献
5.
Siyabonga Ngubane Susan Jagner Akella Sivaramakrishna 《Journal of organometallic chemistry》2008,693(2):343-348
The synthesis of the new cyclopentadiene, C5Me4(hex)H is described and its reaction with Ru3(CO)12 to yield (C5Me4hex)2Ru2(CO)4 (hex = n-hexyl) is reported. The X-ray crystal structure of the dimer confirms the structure with bridging and terminal CO groups. Reactions of the dimer to yield (C5Me4hex)Ru(CO)2X (X = Cl, Br, I) are reported. IR, NMR and mass spectra are reported for all new compounds. The solubility of the dimer is found to be 10 times greater than that for (C5Me5)2Ru2(CO)4. 相似文献
6.
The reaction between cadmium nitrate dihydrate and benzil bis(4-methyl-3-thiosemicarbazone), LMe2H4, depends on the working conditions. In methanol the reaction gives the novel complex [Cd(LMe2H4)(NO3)2][Cd(LMe2H4)(NO3)(H2O)]NO3 · H2O (1). Its crystal structure shows the presence of two cadmium atoms with different coordination numbers, seven and eight, and the ligands acting as N2S2 neutral molecules. One cadmium has the coordination sphere completed by a bidentate nitrato group and a water molecule, whereas the other one is bonded to two bidentate nitrato groups. Both molecules are joined to one nitrate ion and to an additional water molecule by hydrogen bonds. In the presence of lithium hydroxide, the reaction leads to a binuclear complex with the ligand doubly deprotonated [Cd(LMe2H2)]2 (2). The complexes were characterized by elemental analysis, mass spectrometry, 13C and 113Cd CP/MAS NMR and, in the case of complex 1, by X-ray diffraction. 相似文献
7.
R. Uson L.A. Oro C. Foces-Foces F.H. Cano A. Vegas M. Valderrama 《Journal of organometallic chemistry》1981,215(2):241-253
The preparation and properties of complexes of the general formulae [Rh(TFB)(diolefin)]ClO4, [Rh(TFB)(arene)]ClO4 and [Rh(TFB)L2]ClO4, (TFB = tetrafluorobenzobarrelene, L = dimethylsulfoxide and tetrahydrothiophen) are described. The crystal structures of the arene complexes (arene = C6Me6, C6H3Me3 and C6H4Me2) have been solved by X-ray methods. The three compounds crystallize in quite similar lattices: R3c, a = b = 27.122, 26.233, 25.731 and c = 17.079, 16.388, 16.256 Å, respectively. δR-plots for about 2000 reflections show the agreement in the refinements carried out up to R-values of 5%, 5% and 4% respectively. The Rh atom is coordinated to the double bonds of the TFB and to the arene ring in all three compounds, but the deviation from planarity of the arene and its relative position with respect to the TFB moiety varies. 相似文献
8.
Ali Naghipour Zahra Haji Ghasemi David Morales-Morales Juan M. Serrano-Becerra Craig M. Jensen 《Polyhedron》2008
The asymmetric PCP pincer ligand [C6H4-1-(CH2PPh2)-3-(CH(CH3)PPh2)] (4) has been synthesized in a facile manner in three simple steps in high yield. Metallation of PCP pincer ligand (4) with [Pd(COD)Cl2] affords complex [PdCl{C6H3-2-(CH2PPh2)-6-(CH(CH3)PPh2)}] (7) in good yield. 相似文献
9.
The reaction of [(C6H6)RuCl2]2 with 7,8-benzoquinoline and 8-hydroxyquinoline in methanol were performed. The obtained complexes have been studied by IR, UV–VIS, 1H and 13C NMR spectroscopy and X-ray crystallography. In the reaction with 8-hydroxyquinoline the arene ruthenium(II) complex oxidized to Ru(III). The electronic spectra of the obtained compounds have been calculated using the TDDFT method. Magnetic properties of [Ru(C9H6NO)3] · CH3OH complex suggest the antiferromagnetic coupling of the ruthenium centers in the crystal lattice. EPR spectrum of [Ru(C9H6NO)3] · CH3OH compound indicates single isotropic line only characteristic for Ru3+ with spin equal to 1/2. 相似文献
10.
Reaction of the square antiprismatic cluster [ppn][Ru8(μ8-P)(μ-CO)2(CO)20] [ppn = bis(triphenylphosphoranylidene)ammonium] with triphenylphosphine proceeds by loss of one cluster core vertex, phosphine P-C cleavage, and CO insertion into the putative Ru-phenyl bond to afford [ppn][Ru7(μ7-P)(μ-η2-OCPh)(μ-PPh2)(μ-CO)(CO)17] in low yield, the first heptaruthenium μ7-phosphido-ligated cluster. 相似文献
11.
The [(C6H6)RuCl(1,10-C12H8N2)]Cl complex has been prepared and studied by IR, UV-Vis, 1H NMR spectroscopy and X-ray crystallography. The complex was prepared in reaction of [(C6H6)RuCl2]2 with 1,10-phenatroline in acetone. The electronic spectrum of the compound has been calculated using the TDDFT method. 相似文献
12.
Randolf D Köhn David Smith Martina Prinz Gabriele Kociok-Köhn 《Journal of organometallic chemistry》2003,683(1):200-208
Complexes of N-substituted 1,3,5-triazacyclohexanes with CrCl3 form 1:1 adducts with [PhNMe2H][B(C6F5)4] with increased solubility in toluene. Addition of AliBu3 leads to free PhNMe2 and a complex with [B(C6F5)4]− weakly coordinated to chromium via a meta-fluorine atom. This complex can polymerise and/or trimerise olefins similar to methyl aluminoxane activated complexes. Decomposition of the active complex involves transfer of the triazacyclohexane to aluminium leading to [(triazacyclohexane)AliBu2][B(C6F5)4] and [(arene)2Cr][B(C6F5)4]. These chromium(I) complexes have been characterised by X-ray crystallography and prove that chromium is reduced to the oxidation state +I during the catalysis. 相似文献
13.
14.
Kathryn M. Carlson-Day Thomas E. Concolino Judith L. Eglin Chun Lin Tong Ren Edward J. Valente Jeffrey D. Zubkowski 《Polyhedron》1996,15(24):4469
The singlet-triplet separations for the edge-sharing bioctahedral (ESBO) complex W2(μ-H)(μ-Cl)(Cl4(μ-dppm)2 · (THF)3 (II) has been studied by 31P NMR spectroscopy. The structural characterization of [W2(μ-H)2(μ-O2CC6H5)2Cl2(P(C6H5)3)2] (I) by single-crystal X-ray crystallography has allowed the comparison of the energy of the HOMOLUMO separation determined using the Fenske-Hall method for a series of ESBO complexes with two hydride bridging atoms, two chloride bridging atoms and the mixed case with a chloride and hydride bridging atom. The complex representing the mixed case, [W2(μ-H)(μ-Cl)Cl4(μ-dppm)2 · (THF)3] (II), has been synthesized and the value of −2J determined from variable-temperature 31P NMR spectroscopy. 相似文献
15.
Pavel A. Abramov Maxim N. Sokolov Alexander V. Virovets Eugenia V. Peresypkina Vladimir P. Fedin 《Journal of Cluster Science》2007,18(3):597-605
Reaction of [MoOCl5]2− with in situ generated H2Se under hydrothermal conditions (4M HCl, 140 °C) leads to reduction of Mo(V) to Mo(IV) with the formation of a triangular
cluster Mo3(μ3-Se)(μ-O)34+ in high yield. It is present in HCl solutions as aqua chlorocomplex [Mo3(μ3-Se)(μ-O)3(H2O)6Cl3]+ which was isolated and structurally characterized as supramolecular adduct with cucurbit[6]uril (CB[6]), {[Mo3(μ3-Se)(μ-O)3(H2O)6Cl3]2CB[6]}Cl2·15H2O.
Dedicated to Professor Dieter Fenske on the Occasion of his 65th Birthday 相似文献
16.
S. Francis Amevor Hans-Ulrich Hund Albrecht Salzer 《Journal of organometallic chemistry》1996,520(1-2):79-84
A series of heterodimetallic complexes of general formula (C5R5)M(μ-CO)3RuC5Me5 (M = Cr, Mo, W; R = Me, Et) has been prepared in good yields by the reaction of [C5R5M(CO)3]− with [C5Me5Ru(CH3CN)3]+. (C5Me4Et)W(μ-CO)3Ru(C5Me5) was characterized by a crystal structure determination. The W---Ru bond length of 2.41 Å is consistent with the formulation of a metal-metal triple bond, while the unsymmetrical bonding mode of the three bridging carbonyl groups reflects the inherent non-equivalence of the two different C5R5M-units. Using [CpRu(CH3CN)3]+ or [CpRu(CO)2(CH3CN)]+ as the cationic precursor leads to the formation of dimetallic species (C5R5)M(CO)5RuC5H5 with both bridging and terminal carbonyl groups. 相似文献
17.
18.
K. O. Kallinen M. Ahlgr n T. T. Pakkanen T. A. Pakkanen 《Journal of organometallic chemistry》1996,510(1-2):37-43
The reaction between Ru3(CO)12 and a cyclic olefin (cis-cyclooctene or trans-cyclododecene) at 100 °C for several hours gives the title compounds (μ-H)2RU3(CO)9(μ3-η2-C8H12) (1), and (μ-H)RU3(CO)9(μ3-η3-C12H19) (2), both of which have been characterized by X-ray diffraction studies, IR and NMR spectral measurements and elemental analysis. The prolonged reaction between Ru3(CO)12 and cis-cyclooctene gives compound HRu3(CO)9(C8H11) (3). Compound 3 has been characterized with IR and NMR spectral analyses. In 1 the cyclooctene ring is linked via a μ3-η2-alkyne type of bonding to the face of the Ru3 cluster. It is formally σ-bonded to two of the three Ru atoms and π-bonded to the third Ru. The two hydrides in 1 are bridging Ru---Ru bonds. In 2 the cyclododecene ring is bonded to the Ru3 face via the μ3-η3-CCHC linkage. There are two formal σ-bonds from the allyl part to the hydrido-bridged Ru atoms and the η3-allyl linkage to the third Ru atom. 相似文献
19.
Kathryn M. Carlson-Day Thomas E. Concolino Judith L. Eglin
Chun Lin
Tong RenEdward J. Valente
Jeffrey D. Zubkowski
《Polyhedron》1996,15(24):4469-4478The singlet-triplet separations for the edge-sharing bioctahedral (ESBO) complex W2(μ-H)(μ-Cl)(Cl4(μ-dppm)2 · (THF)3 (II) has been studied by 31P NMR spectroscopy. The structural characterization of [W2(μ-H)2(μ-O2CC6H5)2Cl2(P(C6H5)3)2] (I) by single-crystal X-ray crystallography has allowed the comparison of the energy of the HOMOLUMO separation determined using the Fenske-Hall method for a series of ESBO complexes with two hydride bridging atoms, two chloride bridging atoms and the mixed case with a chloride and hydride bridging atom. The complex representing the mixed case, [W2(μ-H)(μ-Cl)Cl4(μ-dppm)2 · (THF)3] (II), has been synthesized and the value of −2J determined from variable-temperature 31P NMR spectroscopy. 相似文献
20.
Julian J. Adams David E. Berry Jane Browning Dirk Burth Owen J. Curnow 《Journal of organometallic chemistry》1999,580(2):6418
The preparation, isolation and characterisation of 1,3-bis(diphenylphosphino)indene (1) from indene and chlorodiphenylphosphine is described. The reaction of 1 with selenium gives the diselenide adduct 1,3-bis(diphenylselenophosphino)indene (2) which was characterised crystallographically. Deprotonation of 1 and treatment with ferrous chloride gives the unstable tetraphosphine complex bis(1,3-bis(diphenylphosphino)indenyl)iron(II) (3). Complex 3 decomposes to the diphosphine complex bis(1-diphenylphosphinoindenyl)iron(II) (4) via replacement of one diphenylphosphine substituent per indenyl ligand by a hydrogen atom. Complex 4 was also prepared by treatment of two equivalents of 1-diphenylphosphinoindenide with ferrous chloride. The heterobimetallic complex tetracarbonyl(bis(1-diphenylphosphinoindenyl)iron(II))molybdenum(0) (5) was also prepared and crystal structures of both the meso (5a) and C2-symmetric racemic (5b) isomers are reported. 相似文献