Igor Sivaev - Academia.edu (original) (raw)
Papers by Igor Sivaev
Russian chemical bulletin, 2024
Dalton transactions, 2024
New Journal of Chemistry, 2020
Complexation of tungsten carbonyl moieties with C- and C,C-methylthio-derivatives of charge-compe... more Complexation of tungsten carbonyl moieties with C- and C,C-methylthio-derivatives of charge-compensated nido-carborane.
Phosphorus Sulfur and Silicon and The Related Elements, Jan 4, 2018
The formation of new types of intramolecular B-H• • •X hydride-halogen and B-H• • •π (CࣕC) hydrog... more The formation of new types of intramolecular B-H• • •X hydride-halogen and B-H• • •π (CࣕC) hydrogen bonds in nido-carborane derivatives 9-XCH 2 S(Me)S-7,8-C 2 B 9 H 11 and 10-RCࣕCCH 2 S(Me)S-7,8-C 2 B 9 H 11 as well as the role of intramolecular hydrogen bonding between the dicarbollide ligands in cobalt bis(dicarbollide) complexes [3,3-M(1,2-C 2 B 9 H 11) 2 ] − in stabilization of their different rotational isomers (rotamers) were described based on NMR spectroscopy and single-crystal X-ray studies.
Russian Chemical Bulletin, Nov 1, 2016
A reaction of the protonated form of 7,8 dicarba nido undecaborate anion 7,8 C 2 B 9 H 13 with th... more A reaction of the protonated form of 7,8 dicarba nido undecaborate anion 7,8 C 2 B 9 H 13 with thiourea leads to the formation of a mixture of 9 and 10 thiuronium derivatives, the alkaline hydrolysis of which gives a mixture of the corresponding mercapto derivatives of nido carborane. The alkylation of the latter with benzyl bromide led to a mixture of dibenzyl sulfonium derivatives 9 Bn 2 S 7,8 C 2 B 9 H 11 and 10 Bn 2 S 7,8 C 2 B 9 H 11 , which were separated by column chromatography on silica.
Russian Chemical Bulletin, Feb 1, 2009
Five glycoconjugates were obtained from ortho-carboranylacetic acid and β-actosylamine or β-d-gal... more Five glycoconjugates were obtained from ortho-carboranylacetic acid and β-actosylamine or β-d-galactopyranosylamine derivatives with the terminal amino group in the spacer. The glycoconjugates have different lengths of the spacer (9 to 15 atoms) and contain two or three βlactosylamine residues or one, two, or three β-d-galactopyranosylamine residues.
Russian Chemical Bulletin, Sep 1, 2004
Reactions of an amino derivative of the closo-decaborate anion [1-B10H9NH3]- with aromatic aldehy... more Reactions of an amino derivative of the closo-decaborate anion [1-B10H9NH3]- with aromatic aldehydes afforded Schiff bases [1-B10H9NH=CHAr]- (Ar=Ph, C6H4-2-OMe, or C6H4-4-NHCOMe). The reduction of the latter with sodium borohydride gave the corresponding benzylamino derivatives [1-B10H9NH2CH2Ar]-.
Dalton Transactions, 2015
Russian Chemical Bulletin, Jun 1, 2010
Journal of Organometallic Chemistry, Jun 1, 2005
Journal of Organometallic Chemistry, Sep 1, 2002
p-Carborane has been arylated on the 2-B-atom in high yields, using the Suzuki–Miyaura reaction. ... more p-Carborane has been arylated on the 2-B-atom in high yields, using the Suzuki–Miyaura reaction. Thus the reaction between 2-I-p-carborane and various arylboronic acids [1-naphthyl-, phenyl-, 4-MeOC6H4, 3-CH3CONHC6H4, 4-NCC6H4, 3-NO2C6H4], gave the corresponding 2-aryl-p-carboranes in DME solution when reacted in the presence of cesium fluoride and the catalytic Pd2(dba)3–dppb system.
Inorganic Chemistry, Nov 23, 1999
... Vladimir V. Nesterov, † Mikhail Yu. Antipin, † Vladimir I. Bregadze, † and Stefan Sjöberg ‡. ... more ... Vladimir V. Nesterov, † Mikhail Yu. Antipin, † Vladimir I. Bregadze, † and Stefan Sjöberg ‡. AN Nesmeyanov Institute of Organo-Element Compounds, Russian Academy of Sciences, Vavilov Str. 28, 117813, Moscow, Russia, Department ...
Journal of Organometallic Chemistry, Dec 1, 2000
Coordination Chemistry Reviews, Jul 1, 2014
The effects of different electronic and structural factors in determining the Lewis acidity of bo... more The effects of different electronic and structural factors in determining the Lewis acidity of boron compounds are analyzed. Scales of Lewis acidity for boron Lewis acids based on the Gutmann-Beckett and Childs methods have been constructed using data available in the literature. The Lewis acidities of transient boron Lewis acids have been estimated and their high Lewis acidity has been confirmed.
European Journal of Inorganic Chemistry, Mar 30, 2009
Russian Chemical Bulletin, Sep 1, 2007
Journal of Heterocyclic Chemistry, Dec 11, 2019
The synthesis and the crystal structures of the complexes [Cu(L I) 2 ](ClO 4) (1) and [Cu(L I)(CH... more The synthesis and the crystal structures of the complexes [Cu(L I) 2 ](ClO 4) (1) and [Cu(L I)(CH 3 CN) 2 (ClO 4) 2 ] (2) are reported. 1 crystallizes in the monoclinic space group C2/c with the unit cell dimensions a ϭ 13.169(4), b ϭ 12.289(3), c ϭ 14.732(3) Å , β ϭ 109.03(2)°and Z ϭ 4. Copper(I) is coordinated to four N atoms of the two 1,10-phenanthroline-5,6-dione (L I) ligands with a twofold axis passing between the ligands. The copper(II) compound 2 crystallizes in the orthorhombic space group Pbn2 1 with unit cell dimensions of a ϭ 7.498(5), b ϭ 23.492(7), c ϭ 12.363(4) Å and
Russian chemical bulletin, 2024
Dalton transactions, 2024
New Journal of Chemistry, 2020
Complexation of tungsten carbonyl moieties with C- and C,C-methylthio-derivatives of charge-compe... more Complexation of tungsten carbonyl moieties with C- and C,C-methylthio-derivatives of charge-compensated nido-carborane.
Phosphorus Sulfur and Silicon and The Related Elements, Jan 4, 2018
The formation of new types of intramolecular B-H• • •X hydride-halogen and B-H• • •π (CࣕC) hydrog... more The formation of new types of intramolecular B-H• • •X hydride-halogen and B-H• • •π (CࣕC) hydrogen bonds in nido-carborane derivatives 9-XCH 2 S(Me)S-7,8-C 2 B 9 H 11 and 10-RCࣕCCH 2 S(Me)S-7,8-C 2 B 9 H 11 as well as the role of intramolecular hydrogen bonding between the dicarbollide ligands in cobalt bis(dicarbollide) complexes [3,3-M(1,2-C 2 B 9 H 11) 2 ] − in stabilization of their different rotational isomers (rotamers) were described based on NMR spectroscopy and single-crystal X-ray studies.
Russian Chemical Bulletin, Nov 1, 2016
A reaction of the protonated form of 7,8 dicarba nido undecaborate anion 7,8 C 2 B 9 H 13 with th... more A reaction of the protonated form of 7,8 dicarba nido undecaborate anion 7,8 C 2 B 9 H 13 with thiourea leads to the formation of a mixture of 9 and 10 thiuronium derivatives, the alkaline hydrolysis of which gives a mixture of the corresponding mercapto derivatives of nido carborane. The alkylation of the latter with benzyl bromide led to a mixture of dibenzyl sulfonium derivatives 9 Bn 2 S 7,8 C 2 B 9 H 11 and 10 Bn 2 S 7,8 C 2 B 9 H 11 , which were separated by column chromatography on silica.
Russian Chemical Bulletin, Feb 1, 2009
Five glycoconjugates were obtained from ortho-carboranylacetic acid and β-actosylamine or β-d-gal... more Five glycoconjugates were obtained from ortho-carboranylacetic acid and β-actosylamine or β-d-galactopyranosylamine derivatives with the terminal amino group in the spacer. The glycoconjugates have different lengths of the spacer (9 to 15 atoms) and contain two or three βlactosylamine residues or one, two, or three β-d-galactopyranosylamine residues.
Russian Chemical Bulletin, Sep 1, 2004
Reactions of an amino derivative of the closo-decaborate anion [1-B10H9NH3]- with aromatic aldehy... more Reactions of an amino derivative of the closo-decaborate anion [1-B10H9NH3]- with aromatic aldehydes afforded Schiff bases [1-B10H9NH=CHAr]- (Ar=Ph, C6H4-2-OMe, or C6H4-4-NHCOMe). The reduction of the latter with sodium borohydride gave the corresponding benzylamino derivatives [1-B10H9NH2CH2Ar]-.
Dalton Transactions, 2015
Russian Chemical Bulletin, Jun 1, 2010
Journal of Organometallic Chemistry, Jun 1, 2005
Journal of Organometallic Chemistry, Sep 1, 2002
p-Carborane has been arylated on the 2-B-atom in high yields, using the Suzuki–Miyaura reaction. ... more p-Carborane has been arylated on the 2-B-atom in high yields, using the Suzuki–Miyaura reaction. Thus the reaction between 2-I-p-carborane and various arylboronic acids [1-naphthyl-, phenyl-, 4-MeOC6H4, 3-CH3CONHC6H4, 4-NCC6H4, 3-NO2C6H4], gave the corresponding 2-aryl-p-carboranes in DME solution when reacted in the presence of cesium fluoride and the catalytic Pd2(dba)3–dppb system.
Inorganic Chemistry, Nov 23, 1999
... Vladimir V. Nesterov, † Mikhail Yu. Antipin, † Vladimir I. Bregadze, † and Stefan Sjöberg ‡. ... more ... Vladimir V. Nesterov, † Mikhail Yu. Antipin, † Vladimir I. Bregadze, † and Stefan Sjöberg ‡. AN Nesmeyanov Institute of Organo-Element Compounds, Russian Academy of Sciences, Vavilov Str. 28, 117813, Moscow, Russia, Department ...
Journal of Organometallic Chemistry, Dec 1, 2000
Coordination Chemistry Reviews, Jul 1, 2014
The effects of different electronic and structural factors in determining the Lewis acidity of bo... more The effects of different electronic and structural factors in determining the Lewis acidity of boron compounds are analyzed. Scales of Lewis acidity for boron Lewis acids based on the Gutmann-Beckett and Childs methods have been constructed using data available in the literature. The Lewis acidities of transient boron Lewis acids have been estimated and their high Lewis acidity has been confirmed.
European Journal of Inorganic Chemistry, Mar 30, 2009
Russian Chemical Bulletin, Sep 1, 2007
Journal of Heterocyclic Chemistry, Dec 11, 2019
The synthesis and the crystal structures of the complexes [Cu(L I) 2 ](ClO 4) (1) and [Cu(L I)(CH... more The synthesis and the crystal structures of the complexes [Cu(L I) 2 ](ClO 4) (1) and [Cu(L I)(CH 3 CN) 2 (ClO 4) 2 ] (2) are reported. 1 crystallizes in the monoclinic space group C2/c with the unit cell dimensions a ϭ 13.169(4), b ϭ 12.289(3), c ϭ 14.732(3) Å , β ϭ 109.03(2)°and Z ϭ 4. Copper(I) is coordinated to four N atoms of the two 1,10-phenanthroline-5,6-dione (L I) ligands with a twofold axis passing between the ligands. The copper(II) compound 2 crystallizes in the orthorhombic space group Pbn2 1 with unit cell dimensions of a ϭ 7.498(5), b ϭ 23.492(7), c ϭ 12.363(4) Å and