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1.
T. V. Baukova N. A. Oleinikova D. A. Lemenovskii L. G. Kuz'mina 《Russian Chemical Bulletin》1994,43(4):681-688
Mono- and binuclear gold(I) derivatives ofortho-substituted diphenyl ether, C6H5OC6H4AuPPh3 and O(C6H4)2(AuPPh3)2, were prepared by the reaction of the 2,2'-dilithium derivative of diphenyl ether with ClAuPPh3. X-Ray structural study has shown that these compounds contain secondary intramolecular bonds between the gold and oxygen atoms. The interaction of C6H5OC6H4AuPPh3 with (AuPPh3)BF4 affords the [C6H5OC6H4(AuPPh3)2]BF4 cationic complex. The latter reacts with PPh3 to give the starting C6H5OC6H4AuPPh3 complex.Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 4, pp. 729–736, April, 1994.The authors wish to thank A. L. Blyumenfel'd for recording31P NMR spectra, D. V. Zagorevskii and K. V. Kazakov who obtained mass spectra, and Yu.L. Slovokhotov who carried out the EXSAFS study.The study described in the present paper was partly supported by the International Scientific Fund, grant N Ch. 002479. 相似文献
2.
T. V. Baukova L. G. Kuz'mina A. V. Churakov N. A. Oleinikova P. V. Petrovskii 《Russian Chemical Bulletin》1998,47(2):343-348
The reaction of [O(AuPPh3)3]+BF4
− with a Li, K derivative ofo-cresol followed by the interaction of the reaction product with CO2 gave (triphenylphosphine)gold acetate. The reaction of ClAuPPh3 witho-LiC6H4SLi afforded (triphenylphosphine)gold thiophenoxide. According to the data of X-ray structural analysis, the latter occurs
as a dimer formed through an intermolecular secondary Au…Au bond. The reaction of this complex with diazomethane was accompanied
by insertion of carbene into the Au−S bond to form a new gold complex, PhSCH2AuPPh3. The reactions with PPh3Au+BF4
− or HBF4 yielded a new tetranuclear gold thiocluster, {[PhS(AuPPh3)2]2+(BF4
−)}2, which involves Au…Au bonds that differ in strength. The structures of the compounds obtained were established by X-ray structural
analysis1H and31P NMR spectroscopy, and FAB mass spectrometry.
For Part 4, seeIzv. Akad. Nauk, Ser. Khim., 1997, 2244 [Russ. Chem. Bull., 1997,46 2127 (Engl. Transl)].
Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 2 pp. 350–355, February, 1998. 相似文献
3.
M. I. Rybinskaya A. Z. Kreindlin L. N. Kiseleva A. A. Kamyshova N. V. Kruglova P. V. Petrovskii L. M. Epstein A. N. Krylov E. S. Shubina U. Turpeinen 《Russian Chemical Bulletin》1995,44(12):2382-2389
The products ofO-protonation of metallocenecarbaldehydes C5Me5MC5Me4CHO (M = Fe, Ru, Os) with HBF4 and CF3COOH were obtained for the first time, the adducts [C5Me5MC5Me4CH(OH)]+BF– being isolated in a pure state. The structures of the adducts depend on the nature of the metal and the anion and are governed by the correlation between their basicities. For example, the Fe-containing adducts have an open fulvenoid structure with an interionic hydrogen bond irrespective of the nature of the anion X (X = BF4
–, CF3COO–). In the case of the Ru- and Os-containing adducts in which the metal atoms are more basic than iron, the competition between the metal atom and the anion for the formation of a hydrogen bond with the OH group is clearly manifested in the IR and1H NMR spectra. In the presence of the weakly basic BF4
– anion, a cyclic structure with an intramolecular M...HO hydrogen bond is formed, while in the presence of a more basic F– or CF3COO– anion. it transforms to the open fulvenoid structure with an interionic hydrogen bond. The structures of the compounds obtained were determined by IR and1H NMR spectra, and the structure of the (C5Me5RuC5Me4CHOH)+...F– salt was proved by X-ray diffraction analysis.Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No.12, pp. 2486–2493, December, 1995.The work was carried out with financial support of the International Science Foundation (Grant Nos. JFN-100 and NSAW 000), the Russian Foundation for Basic Research (Grant No. 93-03-4610), and the Ministry of Science and Technical Policy of RF, whom the authors wish to thank. 相似文献
4.
Summary
Trans-[RhCl(CO)L2] (L = PPh3, AsPh3 or PCy3) react with AgBF4 in CH2Cl2 to give the novel species [Rh-(CO)L2]+ [BF4]–.nCH2Cl2 (n = 1/2 or 1 1/2) (1–3), which we believe to be stabilised by weak solvent interaction. The corresponding stibine compound cannot be isolated by the same process, instead [Rh(CO)2(SbPh3)3]+ [BF4]– (7) is formed when the reaction is carried out in the presence of CO. When reactions designed to prepare [Rh(CO)L2]+ [BF4]– are performed in the presence of CO, or [Rh(CO)L2]+ [BF4]– complexes are reacted with CO, [Rh(CO)2L2]+ [BF4]– (L = PPh3, AsPh3 or PCy3) (4–6) are formed. If Me2CO is used as solvent in the preparation of [Rh(CO)L2]+ [BF4]– (L = PPh3 or AsPh3), then the products are the four-coordinate [Rh(CO)L2-(Me2CO)]+ [BF4]– (8,9) species. The complexes have been characterised by i.r., 31P and 1H n.m.r. spectroscopy and elemental analyses. 相似文献
5.
T.V. Baukova Yu.L. Slovokhotov Yu.T. Struchkov 《Journal of organometallic chemistry》1981,221(3):375-384
The trinuclear cationic complex [Ph4C5(AuPPh3)3+[BF4]- (I) obtained by interaction of C5HPh4AuPPh3 or Ph4C5(AuPPh3)2 with [AuPPh3+[BF4]- in THF was studied by X-ray diffraction. In the presence of benzene, triclinic crystals of the solvate [Ph4C5(AuPPh3)3]+[BF4]-· 2 C6H6 are formed, a = 12.845(6), b = 16.042(8), c = 22.642(11) Å, α = 86.62(4), β = 77.51(4), γ = 76.05(4)°, space group P, Z = 2, 9494 reflections with I > 2σ (λ(Mo-Kα), θ/2θ scan, 2θ < 46°), with absorption correction R = 0.054. The complex represents a diaurated cation of tetraphenylcyclopentadienyl(triphenylphosphine)gold, containing a triangular Au2C fragment (AuAu 2.820(1) Å) which is bonded to the third Au atom (AuAu 3.021(1) Å), coordinated to the cyclopentadienyl ligand by a bond intermediate between η1(σ) and η3 (AuC 2.21(2), 2.60(2) and 2.71(2) Å). 相似文献
6.
Stephan Back Martin Lutz Anthony L. Spek Heinrich Lang Gerard van Koten 《Journal of organometallic chemistry》2001,620(1-2)
A series of homodinuclear Pt compounds containing the anionic, potentially terdentate NCN ligand (NCN=[C6H3(Me2NCH2)2-2,6]−) or its 4-ethynyl derivative were prepared. The two platinum centres are linked together in two different fashions: (i) directly linked by an ethynyl or diethynylphenyl group (head-to-head) and (ii) indirectly bonded by a ethynyl- or butadiynyl-linked bis-NCN ligand (tail-to-tail). The reaction of the head-to-head σ,σ′-ethynylide complex {Pt}CC{Pt} ({Pt}=[Pt(C6H3{CH2NMe2}2-2,6)]+) with [CuCl]n yields {Pt}Cl and [Cu2C2]n, while with [Cu(NCMe)4][BF4] a Cu(I) bridged complex was formed: [(η2-{Pt}CC{Pt})2Cu][BF4]. The results of cyclic voltammetry experiments reveal that both connection modes of the two platinum centres lead to electrochemically independent Pt–NCN units. The X-ray crystal structure analysis of the neutral, tail-to-tail bridging butadiyne bis-NCNH ligand [C6H3(CH2NMe2)-1,3-(CC)-5]2 is reported. 相似文献
7.
8.
Tkach V. S. Zelinskii S. N. Ratovskii G. V. Proidakov A. G. Schmidt F. K. 《Russian Journal of Coordination Chemistry》2004,30(10):703-708
IR and NMR data showed that the ionic complex Pd2(CHCC6H5)2(C5H7O2)3(BF3)2BF4 isolated in the reaction Pd(Acac)2 + PA + 5BF3OEt2 (Acac is C5H7O2, PA is phenylacetylene) is an adduct of two complexes, namely, (Acac)PdBF4 and [(PA)2Pd(C3-Acac · BF3)]+(Acac · BF3)– (coordinatively unsaturated). On dissolution in deuteroacetone or deuteromethanol, the [(Acac)PdF2BF2Pd(C3-Acac · BF3)(PA)2]+(Acac · BF3)– adduct decomposed to Pd(Acac)2, 2BF3 · L (L = (CD3)2CO, CD3OD) and the [L(PA)2Pd(C3-Acac]+BF4
– complex. 相似文献
9.
N. V. Kruglova M. I. Rybinskaya A. Z. Kreindlin P. V. Petrovskii G. L. Timofeeva 《Russian Chemical Bulletin》1996,45(12):2830-2834
Some reactions of the adduct of nonaniethylferrocenecarbaldehyde with HBF4, [Me5C5FeC5Me4CH+(OH)]BF4
–, and its transformation into the paramagnetic complex [Me5C5Fe+-C5Me4CH=O]BF4
– were studied. The structure of the complex was established from the chemical properties, the data from IR spectroscopy, mass spectrometry, and1H,13C, and19F NMR spectroscopy and confirmed by independent synthesis.Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 12, pp, 2979–2983, December, 1996. 相似文献
10.
Bobkova A. V. Zelinskii S. N. Ratovskii G. V. Tkach V. S. Shmidt F. K. 《Kinetics and Catalysis》2001,42(2):189-192
The interaction between the components of a catalytic system Pd(acac)(C3-acac)PPh3+nPPh3+ mBF3OEt2(where n= 1–4, m= 0.25–4, and acac is the acetylacetonate ligand) in benzene is examined by UV and IR spectroscopy. With a relative excess of PPh3(n> m), acacH and [Pd(acac)(PPh3)2]+BF–
4were the main products, whereas BF2acac and a polynuclear complex of PdF2with PPh3also containing Pd2+(BF–
4)2units were formed with a relative excess of BF3OEt2(n< m). 相似文献
11.
Summary The synergistic solvent extraction of Pr, Gd, and Yb with mixtures of 1-phenyl-3-methyl-4-benzoyl-pyrazol-5-one (HP) and tridodecylammonium (TDAHA), trioctylammonium (TOAHA), and dioctylammonium (DOAHA) salts (A
–=Cl–, NO
3
–
, and ClO
4
–
) in C6H6 has been studied. The composition of the extracted species has been determined asAmH+[LnP
4]– (AmH+: ammonium salt cation). The values of the equilibrium constant have been calculated. The influence of the ammonium salt ions on the extraction process is discussed.
Synergetische Extraktion von Lanthaniden mit Mischungen aus 1-Phenyl-3-methyl-4-benzoyl-pyrazol-5-on und aliphatischen Aminen: Einfluß der Ammoniumsalzionen
Zusammenfassung Die synergetische Extraktion von Pr, Gd und Yb mit Mischungen aus 1-Phenyl-3-methyl-4-benzoyl-pyrazol-5-on (HP) und Tridodecylammonium-(TDAHA), Trioctylammonium-(TOAHA) und Dioctylammoniumsalzen (DOAHA) (A –=Cl–, NO 3 – und ClO 4 – ) in C6H6 wurde untersucht. Die Zusammensetzung der Extraktionskomplexverbindungen wurde zuAmH+[LnP 4]– bestimmt; die Gleichgewichtskonstanten wurden berechnet. Der Einfluß der Ionen des Ammoniumsalzes auf die Extraktion wird diskutiert.相似文献
12.
Michael A. Luke D. Michael P. Mingos Darren J. Sherman Robert W. M. Wardle 《Transition Metal Chemistry》1987,12(1):37-41
Summary The bimetallic complexes [IrH(AuPPh3)(dppe)2]X(X=Cl, BPh4, PF6 or BF4) and [IrH(AuPPh3)(CO)(PPh3)3] PF6 have been synthesized from the corresponding neutral iridium phosphine hydrides and [AuCl(PPh3)]. The molecular structure of the latter compounds, determined by single-crystal x-ray crystallography, consists of an octahedrally co-ordinated iridium atom and an almost linear P–Au–Ir–P arrangement. The Au–Ir distance is 2.6628(4) Å. The position of the hydride ligand was located in the x-ray structural analysis and istrans to the carbonyl group, which is consistent with the i.r. and n.m.r. spectral data. 相似文献
13.
Hongwei Qiao Helin Luan Zhiming Zhou Lixue Bi Wen Yao Jimei Li Chang Chen 《Journal of Molecular Structure》2008,885(1-3):89-96
Solvation and association interactions in solutions of LiBF4/DMCC (DMCC for N,N-dimethylcarbamoyl chloride) and LiBF4/DMCC–DME (DME for 1,2-dimethoxyethane) have been studied as a function of concentration of lithium tetrafluoroborate by infrared and Raman spectroscopy. Strong interactions between Li+ and solvent molecules or BF4− anions are observed. The apparent solvation numbers of Li+ in LiBF4/DMCC solutions were deduced. Band-fitting to the B–F stretching band of BF4− anion permits detailed assess of the ion pairing. Based on the calculations of density function theory, optimal structures of Li+(DMCC)n (n = 1–3) were suggested. It is found that the lithium ion was preferentially solvated by DME in DMCC–DME binary solvents. This finding is supported by quantum chemistry calculations. 相似文献
14.
Using the chemiluminescence oxidation of U(IV) and H2O2 with xenon trioxide as a model, it has been found that during the photolysis of solutions of UO2SO4 in sulfuric acid in the absence of any organic compounds, the accumulation of U(SO4)2 and H2O2 takes place as a result of the reaction of the primary products of the photoreduction of uranyl ion,i.e., UO2
+ and the OH radical.Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 4, pp. 751–754, April, 1994.The work was financially supported by the Russian Foundation for Basic Research, Project 93-03-12291. 相似文献
15.
Saha Dilip Kumar Padhye Subhash Anson Christopher E. Powell Annie K. 《Transition Metal Chemistry》2003,28(5):579-584
New mixed-ligand CuII, complexes: [Cu(cf)(phen)Cl)](BF4) · 4H2O (3), [Cu(cf)(bipy)(Cl)](BF4) · 2H2O (4) and [Cu(cf)(dafone)(Cl)](BF4) · 2H2O (5) (cf = ciprofloxacin, phen = 1,10-phenanthroline, bipy = 2,2-bipyridine and dafone = 4,5-diazafluoren-9-one) have been isolated and characterized by elemental analyses, i.r., u.v.–vis. spectra, magnetic susceptibility and cyclic voltammetry. Complex (4) crystallizes in the monoclinic space group P21/n with a = 13.8919(13) Å, b = 14.5718(13) Å, c = 14.0725(13) Å, = 95.150(2)°, V=2837.2(5) Å3. All complexes possess square-pyramidal geometry. The antimycobacterial activity of ciprofloxacin and complexes (3–5) has been evaluated against Mycobacterium smegmatis, which shows clear enhancement in the antitubercular activity upon copper complexation with N—N donors. 相似文献
16.
A. S. Peregudov L. N. Usatova E. I. Smyslova D. N. Kravtsov 《Russian Chemical Bulletin》1994,43(1):125-129
The organomercurials RC(HgR')(CN)2 (R = Me, Ph; R1 = Ph, CH2Ph) have been obtained by the action of organomercury hydroxides R'HgOH or acetates R'HgOAc on substituted malonodinitriles RCH(CN)2- (Ph3PAu3O+BF4 reacts with the same nitriles to give organogold derivatives RC(AuPPh3)(CN)2. The study of the structures of organomercury and -gold compounds by1H,31P and199Hg NMR spectra as well as by IR spectra show that these compounds exist mainly in the C-form. The degenerated exchange reaction involving the cleavage of C-Hg bond takes place in the phenylmercury derivative of methylmalonodinitrile. Organomercury derivatives of substituted malonodinitriles are stable with respect to symmetrization in solution, in contrast to PhCH(HgPh)CN studied previously.Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 1, pp. 129–133, January, 1994. 相似文献
17.
Malinovskii S. T. Bologa O. A. Coropceanu E. B. Luboradzki R. Gerbeleu N. V. 《Russian Journal of Coordination Chemistry》2004,30(5):339-345
Crystal structures of [Co(MH)2(Thio)2][BF4] · H2O (I) and [Co(DH)2(NH3)2][BF4] (II), where MH– is H3C–C(NOH)–C(NO–)–H and DH– is H3C–C(NOH)–C(NO–)–CH3, were determined by X-ray diffraction. The crystals are monoclinic, space group C2/c, unit cell parameters (for I and II, respectively): a = 22.018(2) Å, b = 7.943(1) Å, c = 11.681(1) Å, = 92.68(1)° and a = 21.436(2) Å, b = 6.400(2) Å, c = 12.389(2) Å, = 113.13(1)°. In both cases, the Co(III) coordination polyhedron is a centrosymmetrical trans-octahedron, N4S2 for I and N6 for II. In the crystals of I and II, the complex cations and the outer-sphere [BF4]– anions (and the crystal water molecules in I) form elaborate hydrogen bonding system. 相似文献
18.
V. I. Kadentsev N. G. Kolotyrkina A. A. Stomakhin O. S. Chizhov 《Russian Chemical Bulletin》1995,44(9):1698-1704
Peculiarities of interaction of H+, Me3C+, and Me3Si+ ions with functional groups of molecules in the gas phase have been studied. Proton tends to form chelates with virtually all of the functional groups studied, whereas Me3Si+ ions exhibit no capacity for chelation. Using isomeric xylenes as examples it was shown that Me3Si+ ions (unlike Me3C+ ions) experience virtually no steric hindrance when they react with nucleophilic centers. Effects of functional groups present in molecules of nitriles on the generation of [M+Me3C]+ adducts in the gas phase and the Ritter reaction in solution were estimated.Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 9, pp. 1767–1773, September, 1995.This work was carried out with financial support from the International Science Foundation (Grant MA7 000) and the Russian Foundation for Basic Research (Project No. 93-03-18033). 相似文献
19.
Wolfgang Petz Florian
xler Bernhard Neumüller 《Journal of organometallic chemistry》2009,694(25):4094-4099
The cationic complexes [({Ph3P}2C)Ag(C{PPh3}2)]X (2+, X = Cl, BF4) with a linear arrangement of the ligands were obtained from the reaction of C(PPh3)2 (1) with the appropriate AgX in THF. The 31P NMR spectrum of the cation 2+ exhibits a doublet with J(Ag,P) = 15.3 Hz. The cation was also formed when the adduct O2C ← 1 was allowed to react with AgX in CH2Cl2 in the first step as shown by 31P NMR; however, deprotonation of the solvent finally produced the cation (HC{PPh3}2)+, (H1)+ quantitatively. In the absence of coordinating anions, the tricationic complex [({Ph3P}2CH)Ag(CH{PPh3}2)](BF4)3 (3), containing the cation (H1)+ as ligand, could be isolated by reacting AgBF4 with the salt (H1)(BF4). All compounds were characterized by IR and 31P NMR spectroscopy; the structures of the compounds [2]Cl·1.25THF, 3·5CH2Cl2, 3·4C2H4Cl2, and (H1)(BF4) could be established by X-ray analyses. 相似文献
20.
V. V. Gritsenko O. A. D'yachenko N. D. Kushch N. G. Spitsina E. B. Yagubskii N. V. Avramenko M. N. Frolova 《Russian Chemical Bulletin》1994,43(7):1183-1185
Extraction of fullerenes from carbon soot by trichloroethylene has been studied. We have found that C60 forms a solvate with trichloroethylene (C60 · C2HCl3:a=31.31(1);b= 10.156(4);c=10.146(4) Å;V=3228.6 Å3,Z=4,d
calc=1.752 g cm–3, orthorhombic symmetry). Its thermal stability has been studied using TG and DSC. A phase transition of the first order at 167 K has been detected.Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 7, pp. 1248–1250, July, 1994.The authors are grateful to V. P. Bubnov and I. S. Krainskii for providing them with the samples of fulle-rene-containing carbon soot, and to M. G. Kaplunov and A. V. Zvarykina for assistance in the work.This work was carried out with the financial support of the Russian Foundation for Basic Research, Project Nos. 93-03-18705 and 93-03-5650. 相似文献