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1.
Issam M. Gabr Hala A. El-Asmy Mohamed S. Emmam Sahar I. Mostafa 《Transition Metal Chemistry》2009,34(4):409-418
Synthetic procedures are described that allow access to the new complexes cis-[Mo2O5(apc)2], cis-[WO2(apc)2], trans-[UO2(apc)2], [Ru(apc)2(H2O)2], [Ru(PPh3)2(apc)2], [Rh(apc)3], [Rh(PPh3)2(apc)2]ClO4, [M(apc)2], [M(PPh3)2(apc)]Cl, [M(bpy)(apc)]Cl (M(II) = Pd, Pt), [Pd(bpy)(apc)Cl], [Ag(apc)(H2O)2] and [Ir(bpy)(Hapc)2]Cl3, where Hapc, is 3-aminopyrazine-2-carboxylic acid. These complexes were characterized by physico-chemical and spectroscopic
techniques. Both Hapc and several of its complexes display significant anticancer activity against Ehrlich ascites tumour cells (EAC) in albino mice. 相似文献
2.
I. G. Iovel' Yu. Sh. Gol'dberg A. P. Gaukhman M. P. Gavars M. V. Shimanskaya é. Lukevits 《Chemistry of Heterocyclic Compounds》1988,24(10):1138-1145
The hydrosilylation of 2-formylpyridine, 2-formyl-6-methylpyridine, 2-formylfuran, and 2-formyl-5-methylfuran with triethylsilane in the presence of Rh(PPh3)3Cl, Rh(PPh3)3(CO)H, Rh(PPh3)2(C0)Cl, Ru(PPh3)3Cl2, Ru(PPh3)2(CO)2Cl2, and Pd(PPh3)2Cl2 was studied. Silyl ethers of the corresponding hetarylcarbinols were obtained in high yields. The formation of products of dehydrocondensation of the silyl ethers is observed in the hydrosilylation of methyl-substituted aldehydes; this process does not occur in the presence of ruthenium complexes.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 10, pp. 1372–1380, October, 1988. 相似文献
3.
Vaggelis Hondrellis Themistoclis Kabanos Spyros P. Perlepes John M. Tsangaris 《Monatshefte für Chemie / Chemical Monthly》1988,119(10):1091-1101
New complexes of the formulaeM(fur)2·2H2O (M = Mn, Cu, Zn),M(fur)2·3H2O (M = Co, Ni, Cd), Hg2(fur)3Cl2·2H2O, Pd(fur)Cl·H2O and Rh(fur)3·3H2O, wherefurH = 4-chloro-N-(2-furfuryl)-5-sulfamoylanthranilic acid, have been prepared and characterized by conductivity measurements, X-ray powder patterns, thermal methods, effective magnetic moments as well as by IR, ligand field,1H-NMR and ESR spectroscopic studies. The anionfur
– shows a chelated bidentate O(carboxylato), N(imino)-coordinating behaviour.
Metallkomplexe der diuretischen Droge Furosemid
Zusammenfassung Neue Komplexe der Verbindungen:M(fur)2·2H2O (M = Mn, Cu, Zn),M(fur)2·3H2O (M = Co, Ni, Cd), Hg2(fur)3Cl2·2H2O, Pd(fur)Cl·H2O und Rh(fur)3·3H2O, wobeifurH 4-chlor-N-(2-furfuryl)-5-sulfamoylanthanilsäure ist, wurden dargestellt. Die Komplexe wurden durch Leitfähigkeitsmessungen, Röntgen-Pulver-Aufnahmen, thermogravimetrische Analysen, Messungen des effektiven magnetischen Dipolemomentes sowie durch spektroskopische Untersuchungen (IR,1H-NMR und ESR) charakterisiert. Das Anionfur – zeigt das Verhalten einer Chelat-bidentat-O(carboxylato),N(imino)-Koordination.相似文献
4.
Co-condensation of atoms of Re, Ru, Rh, Ir and Pt with oxalyl chloride gives metal chloro-carbonyl derivatives which may be used as precursors to the compounds [Re(CO)4Cl]2, [Ru(PMe3)3(CO)Cl2], α-[Ru(CO)3Cl(μ-Cl)]2, [Ru(PPh3)2(CO)2Cl2], [Rh(CO)2(μ-Cl)]2, [Rh(PPh3)2COCl], [Ir(PPh3)(CO)2Cl3] and cis-Pt(CO)2Cl2. Molybdenum atoms with oxalyl chloride give molybdenum-chloro derivatives. 相似文献
5.
M. P. Sánchez Sánchez J. M. Salas Peregrin M. A. Romero Molina 《Monatshefte für Chemie / Chemical Monthly》1987,118(8-9):883-891
Some news thiopyrimidine derivatives and complexes [4-amino-5-nitroso-6-oxo-1,2,3,6-tetrahydro-2-thio-pyrimidine (TANH), its 2-methylthio derivative (MTH), the ammonium salt ofTANH (sTANH) and six new complexes of formulas: Rh(MT)2Cl · 2H2O, Pd(MTH)2Cl2, Pt(MTH)2Cl4, Au(MTH)Cl3 Pd(TANH)2Cl2 and Au(TAN
–)Cl] have been synthesized and characterized by elemental analysis, IR and1H-NMR spectroscopy techniques. The thermal behaviour of all compounds has also been studied.
Rh(III), Pd(II), Pt(IV) und Au(III) Komplexe von 2-Thiopyrimidin Derivaten
Zusammenfassung Es wurden einige neue Thiopyrimidinderivate und deren Komplexe synthetisiert und mittels Elementaranalyse, IR und1H-NMR charakterisiert: 4-Amino-5-nitroso-6-oxo-1,2,3,6-tetrahydro-2-thio-pyrimidin (TANH), dessen 2-Methylthio-Derivat (MTH), das Ammoniumsalz vonTANH (sTANH) und sechs neue Komplexe der Formeln Rh(MT)2Cl · 2H2O, Pd(MTH)2Cl2, Pt(MTH)2Cl4, Au(MTH)Cl3, Pd(TANH)2Cl2 und Au(TAN –)Cl. Das thermische Verhalten der Verbindungen wurde ebenfalls untersucht.相似文献
6.
Summary The carbonyl-N-phenylanthranilatorhodium(I) complex [Rh(CO)2(FA)] (1) was obtained by heating RhCl3 · 3 H2O withN-phenylanthranilic acid (HFA) in boiling dimethylformamide (DMF). Triphenylphosphine, PPh3, can replace one carbonyl ligand in complex (1) to produce [Rh(CO)(PPh3)(FA)] (2). Complexes (1) and (2) were characterized by analytical and physicochemical methods. 相似文献
7.
Mari Sasaki Genta Sakane Tadashi Ouchi Takashi Shibahara 《Journal of Cluster Science》1998,9(1):25-43
Sulfur/oxygen-bridged incomplete cubane-type triphenylphosphine molybdenum and tungsten-clusters [Mo3S4Cl4(H2O)2(PPh3)3]·3THF (1A), [Mo3S4Cl4(H2O)2(PPh3)3]·2THF (2A), [Mo3OS3Cl4(H2O)2(PPh3)3]·2THF (1B), and [W3S4Cl4(H2O)2(PPh3)3]·2THF (1C) were prepared from the corresponding aqua clusters and PPh3 in THF/MeOH. On recrystallization from THF, procedures with and without addition of hexane to the solution gave 1A and 2A, respectively, while the procedures gave no effect on the formation of 1B and 1C. Crystallographic results obtained are as follows: 1A: monoclinic, P21/n, a=17.141(4) Å, b=22.579(5) Å, c=19.069(4) Å, =96.18(2)°, V=7337(3) Å3, Z=4, R(R
w)=0.078(0.102); 1C: monoclinic, P2
1/c, a=12.635(1) Å, b=20.216(4) Å, c=27.815(3) Å, =96.16(1)°, V=7062(2) Å3, Z=4, R(R
w)=0.071(0.083). If the phenyl groups are ignored, the molecule [Mo3S4Cl4(H2O)2(PPh3)3] in 2A has idealized CS symmetry with the mirror plane perpendicular to the plane determined by the metal atoms, while the molecule in 1A does not have the symmetry. The tungsten compound 1C is isomorphous with the molybdenum compound 2A. 31P NMR spectra of 1A, 2A, and 1C were obtained and compared with similar clusters with dmpe (1,2-bis(dimethylphosphino)ethane) ligands. 相似文献
8.
Reductive carbonylation of rhodium(III) chloride complexes, commercial RhCl3 · nH2O neutralized with BaCO3, (Me2NH2)2[RhCl5(DMF)], (PPh4)[RhCl4(H2O)2], RhCl3(DMF)3, RhCl3(CH3CN)3, RhCl3(CH3CN)2(DMF), [Rh(CO)2Cl3]2, and rhodium(I) complex, Rh(PPh3)3Cl, by N,N-dimethylformamide (DMF) is studied. The data obtained support the conception of direct carbonyl group transfer from DMF molecule to the Rh metal center. The mechanistic scheme of carbonylation process is refined and discussed with regard of new experimental results. 相似文献
9.
《Journal of organometallic chemistry》1987,319(3):311-326
Dehydrogenating complexation of borolenes with carbonyls (Ru3(CO)12, Os3(CO)12), Wilkinson's catalyst (RhCl(PPh3)3) and related compounds (RuCl2(PPh3)3, RuHCl(PPh3)3, OSCl2(PPh3)3), and (η6-arene)ruthenium complexes (Ru(η-C6H6)(η4-C6H8), [Ru(η-C6H6)Cl2]2, [Ru(η-C6-Me6)Cl2]2) leads to the (η5-borole)metal complexes of Ru, Os, and Rh. Inter alia, the preparation of the complexes Ru(CO)3(η5-C4H4BF) (R = Ph, OMe, Me), Os(CO)3L (L = η5-C4H4BPh), MHClL(PPh3)2 (M = Ru, Os), RhClL(PPh3)2, and RuL(η-C6R6) (R = H, Me) is described. The structures of RuHClL(PPh3)2 and RhClL(PPh3)2 have been determined by X-ray diffraction analysis. 相似文献
10.
《Journal of Coordination Chemistry》2012,65(10):1553-1567
Synthetic procedures are described that allow access to cis-[Mo2O5(cdhp)2]2?, cis-[W2O5(Hcdhp)2], trans-[OsO2(cdhp)2]2?, trans-[UO2(Hcdhp)2], [ReO(PPh3)(Hcdhp)2]X (X =?Cl, I), [ReO2(cdhp)2]?, [M(PPh3)2(cdhp)], [M(bpy)(cdhp)] (M(II) =?Pd, Pt), [Ru(YPh3)2(Hcdhp)2] (Y =?P, As), [Rh(Hcdhp)2Cl(H2O)], [Rh(PPh3)2(Hcdhp)2]ClO4 and [Ir(bpy)(cdhp)Cl2], where Hcdhp, cdhp are the deprotonated monoanion of 5-chloro-3-hydroxypyrid-2-one and dianion of 5-chloro-2,3-dihydroxypyridine, respectively. These complexes were characterized by their Raman, IR, 1H NMR, electronic and mass spectra, conductivity, magnetic and thermal measurements. H2cdhp, cis-K2[Mo2O5(cdhp)2], [Pd(bpy)(cdhp)] display a significant antineoplastic activity against Ehrlich ascites tumor cells (EAC). 相似文献
11.
de Araujo Márcio P. Queiroz Salete L. Batista Alzir A. Panepucci Ezequiel H. Oliva Glaucius Castellano E.E. 《Transition Metal Chemistry》2002,27(1):110-114
The triply chloro-bridged binuclear complexes [Ph3X=O···H···O=XPh3][Ru2Cl7(XPh3)2]·0.5(CH2Cl2)(H2O) (X = As or P) were obtained from [RuCl3(XPh3)2DMA]·DMA (DMA = dimethylacetamide) CH2Cl2/Et2O solution. The structures were characterized by X-ray diffraction studies. The complexes are formed from two Ru atoms bridged by three chloride anions. The two ruthenium atoms are also coordinated to two non-bridging Cl atoms and an AsPh3 or PPh3 ligand respectively. As an interesting feature, the cations of these complexes are protons, trapped in a very short hydrogen bond between two triphenylarsine or triphenylphosphine oxide molecules. 相似文献
12.
《Polyhedron》1987,6(11):2009-2018
A new bidentate ligand {2-(diphenylphosphino)ethyl}benzylamine(DPEBA) was synthesized and characterized based on the IR, mass and 1H, 13C and 31P NMR spectra. Various complexes of platinum group metal ions and Ni(II) and Co(II) ions with the ligand were synthesized. Reaction of RuCl2(PPh3)3 or RuCl2(Me2SO)4 with the ligand DPEBA, resulted in formation of a penta-coordinate, Ru(II) species of the composition [RuCl(DPEBA)2]Cl. Carbonylation of [RuCl(DPEBA)2]Cl gave an octahedral carbonyl complex of the type [RuCl(CO)(DPEBA)2]Cl. The reaction of RuCl3·3H2O or RuCl3(AsPh3)2MeOH with a twofold excess of the ligand gave an octahedral Ru(III) cationic species [Ru(DPEBA)2Cl2]Cl. Carbonylation of the Ru(III) complex gave rise to a carbonyl complex [RuCl(CO)(DPEBA)2]Cl2. The ligand DPEBA reacts with cobalt(II) chloride in methanol to give the 1 : 1 complex [Co(DPEBA)Cl2]. A series of Rh(I) complexes [Rh(DPEBA)2Cl], [ RhCl(CO)(DPEBA)] and [Rh(DPEBA)2]Cl were synthesized by the reaction of DPEBA with RhCl(PPh3)3, RhCl(CO)(PPh3)2 and [Rh(COD)Cl]2, respectively. Reaction of [Ir(COD)Cl]2 and IrCl(CO)(PPh3)2 with the ligand DPEBA, gave the square-planar complexes [Ir(DPBA)2]Cl and [Ir(DPEBA)(CO)Cl], respectively. Octahedral cationic complexes of the type [M(DPEBA)2Cl2]Cl (M = Rh(III), Ir(III)) were synthesized by the reaction of the ligand DPEBA and rhodium and iridium trichlorides. Reaction of NiCl2·6H2O with DPEBA in 1 : 2 molar equivalents, in boiling butanol gave an octahedral neutral complex [Ni(DPEBA)2Cl2] which readily rearranges to the square-planar complex [Ni(DPEBA)2]Cl2 in methanol. Reaction of Pd(II) and Pt(II) chlorides with DPEBA gave square-planar, cationic complexes of the type [M(DPEBA)2Cl]Cl (M = Pd, Pt). All the complexes were characterized on the basis of their analytical and spectral data. 相似文献
13.
Bikash K. Panda 《Transition Metal Chemistry》2005,30(4):488-495
By reacting [Ru(RL1)(PPh3)2(CO)Cl], (1) (R = C6H4Me, Et) with an excess of CNBut in the presence of NH4PF6, organometallics of the type [Ru(RL2)(PPh3)2(CNBut)2]PF6, (2) have been isolated in excellent yield [RL1 = C6H2O-2-CHNHR(p)-3-Me-5, RL2 = C6H2(CO)-O-2-CHNHR(p)-3-Me-5]. These organometallics, on controlled hydrolysis, produce [Ru(L3)(PPh3)2(CNBut)2], (3) in very good yield (L3 = C6H2(CO)-O-CHO-3-Me-5). In both ([2(C6H4Me)] · 2H2O) and ([3] · 2CH2Cl2) the two phosphine ligands lie in trans positions. In ([2(C6H4Me)] · 2H2O) the Ru(C6H4MeL2) fragment, excluding the pendant tolyl ring, is a near perfect plane (mean dev ~ 0.02Å) which makes a dihedral angle of 5.2° with the tolyl plane. The acyl chelate ring in ([2(C6H4Me)] · 2H2O) is excellently planar with a mean deviation of 0.006°. In ([3] · 2CH2Cl2) the Ru(L3) fragment defines a crystallographic plane of symmetry, the coordinates of the atom being of the type x, 1/4z. The complex ([2C6H4Me)] · 2H2O) displays N–HȮFO (iminium-phenolato) hydrogen bonding while in ([3] · 2CH2Cl2) C–H...O hydrogen bonding is present. Characteristic spectral data (u.v.–vis, i.r. and 1H n.m.r.) of the complexes are reported. A notable feature is that an allowed band near 500 nm due to the t2g → π*(azomethine) charge transfer transition, which is diagnostic of the coordinated iminium-phenolato function, is present in (3) but this band is absent in the aldehydic acyl complex (2). In the 1H n.m.r. spectrum the N+–H signal in (2) (near 13.5 ppm) is split into a doublet due to transcoupling with the azomethine proton. The aldehydic proton of (3) resonates as a sharp singlet near 10 ppm. In CH2Cl2 solution (2) and (3) display quasireversible a RuIII/RuIIcyclic voltammetric response with E1/2 near 0.9 and 0.5 V versuss.c.e. The conversion (2) → (3) is accompanied by the nucleophilic attack of water. The complex (3) is also obtained directly from (1) by reaction with CNBut in the presence of H2O. The aldehyde function in (3) is deactivated by the existing acyl moiety; as a result further decarbonylation does not take place. 相似文献
14.
RNDr. Richard Pastorek 《Monatshefte für Chemie / Chemical Monthly》1977,108(3):743-749
Compounds of the composition La(bpyO2
*)4Cl3·4H2O, La(bpyO2)3Cl3·5H2O, La(bpyO2)2Cl3·3H2O, La(bpyO2)Cl3·3H2O, La(bpyO2)4Br3·4H2O, La(bpyO2)3Br3·8H2O, La(bpyO2)2Br3·7H2O, La(bpyO2)Br3·4H2O, La(bpyO2)4I3·3H2O, La(bpyO2)3(NO3)3·2H2O, La(bpyO2)2(NO3)3·2H2O, La(bpyO2)4(SCN)3·3H2O, La(bpyO2)3(SCN)3·2H2O, La(bpyO2)2(SCN)3·2H2O were isolated. They were investigated by means of thermoanalysis, I.R. spectroscopy, X-ray diffraction and molar conductivity. 相似文献
15.
Conclusions We investigated the transformations of catalysts based on palladium complexes under the conditions of the catalytic reduction of nitrobenzene by carbon monoxide (II). We established that the reduced forms of the catalyst are Pd2(PPh3),4(CO)·H2SO4 and Pd2PPh3)4CO)· HClO4, while the reduced forms are Pd(PPh3)2SO4 and Pd(PPh3)3(H2O)(ClO4)2 in the sulfate and the perchlorate media, respectively.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 5, pp. 998–1002, May, 1989. 相似文献
16.
Jesse L. Kuiper 《Journal of organometallic chemistry》2007,692(8):1653-1660
The reaction between the new hydroxy compound [PPh4][Ru(N)(OH)2Me2] and Pd(OSiMe3)2((−)-sparteine) produces (Me3Si)2O, H2O and a new heterobimetallic compound [PPh4][Ru(N)Me2(μ2-O)2Pd((−)-sparteine)] in good yield. The Ru/Pd bimetallic compound catalyzes the oxidation of aryl and allyl alcohols to the corresponding carbonyl compound in air and the rearrangement of allylic alcohols unsaturated aldehydes. It also oxidizes PPh3 to O-PPh3 under O2. 相似文献
17.
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
18.
Jianmin Dou Qingliang Guo Libin Wu Dacheng Li Daqi Wang Huaisheng Wang Yantuan Li 《应用有机金属化学》2006,20(3):193-202
The reaction of [RuCl2(PPh3)3] with closo‐[B10H10]2? and C5H5FeC5H4COOH (FcCO2H) in refluxing CH2Cl2 solution affords three ruthenaborane clusters: [PPh3(H2O)(FcCO2)RuB10H8Cl] (1), [(PPh3)2ClRu(PPh3)(FcCO2)RuB10H9]·0.5CH2Cl2 (2 × 0.5CH2Cl2) and [PPh3(FcCO2)2RuB10H8] (3). All of these compounds are characterized by FT‐IR, NMR spectroscopic techniques, elemental analysis and single‐crystal X‐ray analysis. They are all based on a closo‐type 1:2:4:2:2 {RuB10} stack with the metal occupying the unique six‐connected apical position and can be considered as having isocloso structures derived from the complete capping of the open face of an arachano geometry to give a completely closed deltahedral cluster. Compounds 1 and 2 both have an exo‐polyhedral ferrocenecarboxylate that is attached with one {Ru? O} and one {B? O} bond each, resulting in one exo‐cyclic five‐membered Ru? O? C? O? B ring. There is in addition one exo‐polyhedral ruthenium atom bonded to the center {RuB10} cluster via one {Ru? Ru} linkage and two {RuHµB} bridges, which forms a closed exo‐polyhedral tetrahedron configuration in compound 2. Compound 3 has two exo‐polyhedral ferrocenecarboxylates to form two five‐membered Ru? O? C? O? B rings engendering a symmetrical conformation. All of these new 11‐vertex ruthenaboranes can be considered as having isocloso structures derived from the complete capping of the open face of an arachano geometry to give a completely closed deltahedral cluster. Copyright © 2006 John Wiley & Sons, Ltd. 相似文献
19.
G. Cruz-Bermúdez A. García-Rodríguez M. Moreno-Carretero J. M. Salas-Peregrin C. Valenzuela-Calahorro 《Monatshefte für Chemie / Chemical Monthly》1987,118(3):329-335
M(ADNU)
2 complexes [whereM=Cu(II), Ni(II), Pd(II) and Pt(II); HADNU=6-amino-1,3-dimethyl-5-nitroso-uracil], Co(ADNU)3·5H2O, Pt(ADNU)2Cl2·0.5H2O, Pd(ADU)2 and Pt(ADU)2Cl2 (where HADU=1,3-dimethyl violuric acid) have been synthesized and characterized by elemental analysis, IR, magnetic measurements and thermal analysis (TG and DSC). All the isolated complexes of formulasM(ADNU)2 orM(ADU)2 show a square planar geometry, whereas the others are octahedral. Both ligands coordinate in bidentate form through the nitrogen and oxygen atoms of the 5-nitroso and 6-oxide groups.
Metall-Komplexe einiger 5-Nitrosopyrimidine
Zusammenfassung Komplexe des TypesM(ADNU)2 [M=Cu(II), Ni(II), Pd(II), Pt(II); HADNU=6-Amino-1,3-dimethyl-5-nitroso-uracil], Co(ADNU)3·5H2O, Pt(ADNU)2Cl2·0.5H2O, Pd(ADU)2 und Pt(ADU)2Cl2 (mit HADU=1,3-dimethylviolursäure) wurden synthetisiert und mittels Elementaranalysen, IR, magnetischen Messungen und Thermoanalyse (TG und DSC) charakterisiert. Alle isolierten Komplexe der allgemeinen FormelnM(ADNU)2 oderM(ADU)2 waren von quadratisch planarer Geometrie, während die anderen sich als octaedrisch erwiesen. Beide Liganden komplexieren zweizähnig über die Stickstoff- und Sauerstoffatome der 5-Nitroso- und 6-Oxo-Gruppen.相似文献
20.
Reaction of PPh2H with Pd(PPh3)4 in a 4:1 molar ratio produced the Pd complex with two diphenylphosphine ligands, Pd(PPh2H)2(PPh3)2 (1). Complex (1) was characterized by n.m.r. (1H and 31P{1H}) spectra as well as by elemental analysis. Reaction of (1) with RhCl(PPh3)3 yielded a Pd–Rh heterobimetallic complex with bridging phosphide ligands, formulated as [(Ph3P)2Pd(μ-PPh2)2Rh(PPh3)2]Cl (2). 相似文献