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Isomorphous rare-earth bis[bis(2,6-diisopropylphenyl)phosphate] complexes and their self-assembly into two-dimensional frameworks by intramolecular hydrogen bonds.

Acta crystallographica. Section C, Structural chemistry

Minyaev ME, Nifant'ev IE, Tavtorkin AN, Korchagina SA, Zeynalova SS, Ananyev IV, Churakov AV.
PMID: 28978790
Acta Crystallogr C Struct Chem. 2017 Oct 01;73:820-827. doi: 10.1107/S2053229617012979. Epub 2017 Sep 29.

The crystal structures of rare-earth diaryl- or dialkylphosphate derivatives are poorly explored. Crystals of bis[bis(2,6-diisopropylphenyl)phosphato-κO]chloridotetrakis(methanol-κO)neodymium methanol disolvate, [Nd(C

Peroxide Coordination of Tellurium in Aqueous Solutions.

Chemistry (Weinheim an der Bergstrasse, Germany)

Mikhaylov AA, Medvedev AG, Churakov AV, Grishanov DA, Prikhodchenko PV, Lev O.
PMID: 26756198
Chemistry. 2016 Feb 24;22(9):2980-6. doi: 10.1002/chem.201503614. Epub 2016 Jan 12.

Tellurium-peroxo complexes in aqueous solutions have never been reported. In this work, ammonium peroxotellurates (NH4 )4 Te2 (μ-OO)2 (μ-O)O4 (OH)2 (1) and (NH4 )5 Te2 (μ-OO)2 (μ-O)O5 (OH)⋅1.28 H2 O⋅0.72 H2 O2 (2) were isolated from 5 % hydrogen...

Experimental tests of a 263 GHz gyrotron for spectroscopic applications and diagnostics of various media.

The Review of scientific instruments

Glyavin MY, Chirkov AV, Denisov GG, Fokin AP, Kholoptsev VV, Kuftin AN, Luchinin AG, Golubyatnikov GY, Malygin VI, Morozkin MV, Manuilov VN, Proyavin MD, Sedov AS, Sokolov EV, Tai EM, Tsvetkov AI, Zapevalov VE.
PMID: 26026544
Rev Sci Instrum. 2015 May;86(5):054705. doi: 10.1063/1.4921322.

A 263 GHz continuous-wave (CW) gyrotron was developed at the IAP RAS for future applications as a microwave power source in Dynamic Nuclear Polarization / Nuclear magnetic resonance (DNP/NMR) spectrometers. A new experimental facility with a computerized control was...

Preexisting Immunity, More Than Aging, Influences Influenza Vaccine Responses.

Open forum infectious diseases

Reber AJ, Kim JH, Biber R, Talbot HK, Coleman LA, Chirkova T, Gross FL, Steward-Clark E, Cao W, Jefferson S, Veguilla V, Gillis E, Meece J, Bai Y, Tatum H, Hancock K, Stevens J, Spencer S, Chen J, Gargiullo P, Braun E, Griffin MR, Sundaram M, Belongia EA, Shay DK, Katz JM, Sambhara S.
PMID: 26380344
Open Forum Infect Dis. 2015 Apr 15;2(2):ofv052. doi: 10.1093/ofid/ofv052. eCollection 2015 Apr.

Background.  Influenza disproportionately impacts older adults while current vaccines have reduced effectiveness in the older population. Methods.  We conducted a comprehensive evaluation of cellular and humoral immune responses of adults aged 50 years and older to the 2008-2009 seasonal...

Synthesis and characterization of the first azastibatranes and azabismatranes.

Inorganic chemistry

Shutov PL, Karlov SS, Harms K, Tyurin DA, Churakov AV, Lorberth J, Zaitseva GS.
PMID: 12425645
Inorg Chem. 2002 Nov 18;41(23):6147-52. doi: 10.1021/ic0257423.

Syntheses of title compounds, viz. N(CH2CH2NR)3E (1, E = Sb, R = Me; 4, E = Bi, R = Me; 6, E = Sb, R = SiMe3; 8, E = Bi, R = SiMe3), by the reaction of E(NAlk2)3...

Benzyl N,N-bis[2-(pentafluoroanilino)ethyl]carbamate.

Acta crystallographica. Section C, Crystal structure communications

Churakov AV, Karlov SS, Lermontova EKh, Zaitseva GS, Howard JA.
PMID: 18057634
Acta Crystallogr C. 2007 Dec;63:o761-2. doi: 10.1107/S0108270107057939. Epub 2007 Nov 30.

The title compound, C24H17F10N3O2, exhibits intramolecular N-H...O hydrogen bonding, as well as intramolecular Ar...Ar(F) face-to-face interactions. The molecules are linked together by N-H...F-C hydrogen bonds, forming chains parallel to the a axis. Adjacent symmetry-related chains are combined in double...

A model proton-transfer system in the condensed phase: NH4(+)OOH(-), a crystal with short intermolecular H-bonds.

The Journal of chemical physics

Churakov AV, Prikhodchenko PV, Lev O, Medvedev AG, Tripol'skaya TA, Vener MV.
PMID: 21033804
J Chem Phys. 2010 Oct 28;133(16):164506. doi: 10.1063/1.3493688.

The crystal structure of NH(4)(+)OOH(-) is determined from single-crystal x-ray data obtained at 150 K. The crystal belongs to the space group P2(1)/c and has four molecules in a unit cell. The structure consists of discrete NH(4)(+) and OOH(-)...

Di-μ-oxido-bis-({2,2'-[ethane-1,2-diylbis(nitrilo-methanylyl-idene)]diphen-olato}titanium(IV)) chloro-form disolvate.

Acta crystallographica. Section E, Structure reports online

Zaitsev KV, Karlov SS, Piskun YA, Vasilenko IV, Churakov AV.
PMID: 24454155
Acta Crystallogr Sect E Struct Rep Online. 2013 Nov 06;69:m635-6. doi: 10.1107/S1600536813029656. eCollection 2013 Nov 06.

In the title structure, [Ti2(C16H16N2O2)2O2]·2CHCl3, the Ti atom is coordinated in a distorted octa-hedral geometry by the O,N,N',O' donor set of the salalen ligand and by two μ2-oxide O atoms, which bridge two Ti(salalen) fragments into a centrosymmetric dimeric...

Palladium complexes with stabilized germylene and stannylene ligands.

Dalton transactions (Cambridge, England : 2003)

Kireenko MM, Zaitsev KV, Oprunenko YF, Churakov AV, Tafeenko VA, Karlov SS, Zaitseva GS.
PMID: 23400115
Dalton Trans. 2013 Jun 14;42(22):7901-12. doi: 10.1039/c3dt32867h. Epub 2013 Feb 11.

The syntheses of novel Pd complexes with germylene and stannylene ligands are reported. [MeN(CH2CH2NC6F5)2Sn]4Pd (2) and [MeN(CH2CPh2O)(CH2CH2O)Ge]4Pd (8) were obtained by different methods including ligand substitution in (Ph3P)4Pd or by the reaction of the free corresponding germylene or stannylene...

(1SR,3RS,3aSR,6aRS)-Methyl 5-methyl-4,6-dioxo-3-[2-(trifluoro-meth-yl)phen-yl]octa-hydro-pyrrolo-[3,4-c]pyrrole-1-carboxyl-ate.

Acta crystallographica. Section E, Structure reports online

Kudryavtsev KV, Ivantcova PM, Churakov AV.
PMID: 23424450
Acta Crystallogr Sect E Struct Rep Online. 2013 Feb 01;69:o161-2. doi: 10.1107/S1600536812051471. Epub 2013 Jan 04.

In the title compound, C(16)H(15)F(3)N(2)O(4), the relative stereochemistry of the four stereogenic C atoms has been determined. The carb-oxy-methyl and 2-(trifluoro-meth-yl)-phenyl substituents of the pyrrolidine cycle have a cis mutual arrangement. The five-membered saturated aza-cycle adopts an envelope conformation...

New oligogermane with a five coordinate germanium atom: the preparation of 1-germylgermatrane.

Dalton transactions (Cambridge, England : 2003)

Zaitsev KV, Churakov AV, Poleshchuk OKh, Oprunenko YF, Zaitseva GS, Karlov SS.
PMID: 24638108
Dalton Trans. 2014 May 14;43(18):6605-9. doi: 10.1039/c3dt53523a.

The first example of an oligogermane, N(CH2CH2O)3Ge-Ge(SiMe3)3 (1), containing a hypercoordinate germanium atom was prepared and characterized by various methods (NMR, UV/vis, and X-ray analysis). The electronic structure of compound 1 was investigated via DFT calculations.

New photoelectric ionization peak in the hydrogen atom.

Physical review letters

Casati G, Chirikov BV, Guarneri I, Shepelyansky DL.
PMID: 10034170
Phys Rev Lett. 1986 Aug 18;57(7):823-826. doi: 10.1103/PhysRevLett.57.823.

No abstract available.

Showing 1 to 12 of 152 entries