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11.
A. V. Polezhaev S. A. Kuklin D. M. Ivanov P. V. Petrovskii F. M. Dolgushin M. G. Ezernitskaya A. A. Koridze 《Russian Chemical Bulletin》2009,58(9):1847-1854
Rhodium hydrido chloride pincer complex RhH(Cl)[2,6-(Bupt
b2PO)b2Cb6Hb3] was synthesized and used for the preparation of new complexes with labile two-electron ligands Rh(L)[2,6-(Bupt
b2PO)b2Cb6Hb3] (L = MeCN or S(CHb2)b4) and complexes with small molecules, such as CO, Ob2, Hb2, and Nb2. 相似文献
12.
Conclusions The Raman spectra of liquid mesitylene and the IR spectra (4000-100 cm–1) of liquid and gaseous mesitylene were studied. An assignment of the frequencies according to the symmetry and the form of the vibrations is proposed.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 10, pp. 2265–2270, October, 1982. 相似文献
13.
A. A. Koridze Y. I. Zdanovich N. V. Andrievskaya Yu. Siromakhova P. V. Petrovskii M. G. Ezernitskaya F. M. Dolgushin A. I. Yanovsky Yu. T. Struchkov 《Russian Chemical Bulletin》1996,45(5):1200-1206
Diyne FcCmCC.CFc (Fc is ferrocenyl) reacts with Ru3(CO)12 in boiling hexane to yield binuclear complexes Ru2 and Ru2(CO)6(C4Fc2(C=CFc)2C=O) containing ruthenacyclopentadiene and diruthenacycloheptadienone rings, respectively. The isomerism of the complexes is due to the different ways of coupling of the alkyne fragments of the diyne, namely, head-to-head, head-to-tail or tail-to-tail. The reaction of enyne PhC=CCH=CHPh with Ru3(CO)12 under similar conditions gives isomeric binuclear complexes Ru2(CO)6(C4Ph2(CH=CHPh)2) and trinuclear clusters Ru3(CO)6(w-CO)2(C4Ph2(CH=CHPh)2) and Ru3(CO)8(3-,1-1-4-2 C4Ph2(CH=CHPh)2). The structure of the latter was determined by X-ray diffraction analysis. The Ru3 triangle coordinates eight terminal CO groups and the organic ligand resulting from the head-to-head dimerization of enyne molecules; the ruthenacyclopentadiene moiety is 4-coordinated to the Ru(CO)2 group, and the third ruthenium atom is 2-bound to one of the PhCH=CH groups.Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 5, pp. 1261–1267, May, 1996. 相似文献
14.
T. V. Magdesieva O. M. Nikitin M. G. Ezernitskaya T. Yu. Orlova A. G. Ginzburg Yu. S. Nekrasov 《Russian Chemical Bulletin》2006,55(5):788-792
The potentials of electrochemical oxidation and reduction of the polynuclear ladder complexes Cp(CO)LM-η 1, η5-C5H4Mn(CO)2L (M = Fe or W(CO); L = PPh3 or CO), μ-(C≡ C)[C5H4(CO)2Fe-η1, η5-C5H4Mn(CO)3]2, and MeSi[C5H4(CO)2Fe-η1, η5-C5H4Mn(CO)3]3 were measured, and the mechanism of these processes is proposed. The change in the electron density at the atom of one metal
(Fe or W) is transferred along the σ-and σ-bond chain in the cyclopentadienyl bridge to the atom of another metal (Mn) and,
on the contrary, the perturbing effect of the substituent is somewhat weakened.
Published In Russian In Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 5, Pp. 761–765, May, 2006. 相似文献
15.
A. A. Koridze S. A. Kuklin N. A. Shtelzer P. V. Petrovskii F. M. Dolgushin M. G. Ezernitskaya 《Russian Chemical Bulletin》2008,57(10):2194-2197
The structure of the previously synthesized triosmium cluster was revised. The structure Os3(μ-H)2(CO)7(μ-C6H4){μ3-Ph2PCH2P(C6H4)Ph} suggested earlier was not confirmed. The cluster has the composition Os3(μ-H)2(CO)7(μ-C5H4N){μ3-Ph2PCH2P(C6H4)Ph} and contains the ortho-metalated pyridine ligand. The X-ray diffraction study of the complex Os3(μ-H)2(CO)7(μ-MeC5H3N){μ3-Ph2PCH2P(C6H4)Ph} containing the ortho-metalated 4-methylpyridine ligand made it possible to distinguish between the C and N atoms of the pyridine ligands in the resulting triosmium clusters. 相似文献
16.
马丽娜 《纯粹数学与应用数学》2007,23(4):549-555
通过构造两个非负鞅证明了一个强极限定理,然后把它应用到本文所定义的广义Bethe树上的奇偶马尔可夫链场上,从而获得了此马氏链场上的一类强极限定理. 相似文献
17.
A. M. Sheloumov A. A. Koridze F. M. Dolgushin Z. A. Starikova M. G. Ezernitskaya P. V. Petrovskii 《Russian Chemical Bulletin》2000,49(7):1292-1296
The synthesis and crystal structures of the clusters M3(AuPPh3)(C≡CFc)(CO)9 (M=Ru,3a; or M=Os,3b) are described. Compound3a was synthesized by deprotonation of Ru3H(C≡CFc)(CO)9 under the action of KOH/EtOH followed by treatment of the anionic complex [Ru3(C≡CFc)(CO)9]− with chloro(triphenylphosphine)gold. Compound3b was prepared by the reaction of Os3(CO)10(NCMe)2 with FcC≡CAuPPh3, which was synthesized by the reaction of FcC≡CNa with ClAuPPh3. The pentanuclear cluster Ru4(AuPPh3)(C≡CFc)(CO)12 (4a), which was prepared by the reaction of3a with Ru3(CO)12, was characterized by spectral methods.
Published inIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 7, pp. 1295–1299, July, 2000. 相似文献
18.
19.
V. I. Zdanovich V. Yu. Lagunova F. M. Dolgushin A. I. Yanovsky M. G. Ezernitskaya P. V. Petrovskii A. A. Koridze 《Russian Chemical Bulletin》1998,47(9):1789-1796
Ruthenium carbonyl triphenylphosphine complexes Ru2(CO)6−n
(PPh3)
n
{μ-C(CH=CHPh)C(Ph)C(CH=CHPh)C(Ph)} (n=1, 2) were obtained by the reaction of complex Ru2(CO)6{μ-C(CH=CHPh)C(Ph)C(CH=CHPh)C(Ph)} containing the ruthenacyclopentadiene moiety with PPh3 in refluxing toluene. The complexes were characterized by IR and by1H,13C, and31P NMR spectroscopy, and by X-ray analysis. The monophosphine derivative is identical to the complex formed by fragmentation
of the Ru3(CO)8(PPh3){μ-C(CH=CHPh)C(Ph)C(CH=CHPh)C(Ph)} cluster and contains the PPh3 ligand at the ruthenium atom of the ruthenacyclopentadiene moiety.
Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 9, pp. 1836–1843, September, 1998 相似文献
20.
Belokon YN Bespalova NB Churkina TD Císarová I Ezernitskaya MG Harutyunyan SR Hrdina R Kagan HB Kocovský P Kochetkov KA Larionov OV Lyssenko KA North M Polásek M Peregudov AS Prisyazhnyuk VV Vyskocil S 《Journal of the American Chemical Society》2003,125(42):12860-12871
Achiral, diamagnetic Ni(II) complexes 1 and 3 have been synthesized from Ni(II) salts and the Schiff bases, generated from glycine and PBP (7) and PBA (11), respectively, in MeONa/MeOH solutions. The requisite carbonyl-derivatizing agents pyridine-2-carboxylic acid(2-benzoyl-phenyl)-amide 7 (PBP) and pyridine-2-carboxylic acid(2-formyl-phenyl)-amide 11 (PBA) were readily prepared from picolinic acid and o-aminobenzophenone or picolinic acid and methyl o-anthranilate, respectively. The structure of 1 was established by X-ray crystallography. Complexes 1 and 3 were found to undergo C-alkylation with alkyl halides under PTC conditions in the presence of beta-naphthol or benzyltriethylammonium bromide as catalysts to give mono- and bis-alkylated products, respectively. Decomposition of the complexes with aqueous HCl under mild conditions gave the required amino acids, and PBP and PBA were recovered. Alkylation of 1 with highly reactive alkyl halides, carried out under the PTC conditions in the presence of 10% mol of (S)- or (R)-2-hydroxy-2'-amino-1,1'-binaphthyl 31a (NOBIN) and/or its N-acyl derivatives and by (S)- or (R)-2-hydroxy-8'-amino-1,1'-binaphthyl 32a (iso-NOBIN) and its N-acyl derivatives, respectively, gave rise to alpha-amino acids with high enantioselectivities (90-98.5% ee) in good-to-excellent chemical yields at room temperature within several minutes. An unusually large positive nonlinear effect was observed in these reactions. The Michael addition of acrylic derivatives 37 to 1 was conducted under similar conditions with up to 96% ee. The (1)H NMR and IR spectra of a mixture of the sodium salt of NOBIN and 1 indicated formation of a complex between the two components. Implications of the association and self-association of NOBIN for the observed sense of asymmetric induction and nonlinear effects are discussed. 相似文献