Инвентарный номер: нет.
   
   F 70


   
    Fluorinated lithium 1,3-diketonates as reagents to modify podands and crown-ethers [Electronic resource] / N. S. Boltacheva, O. V. Fedorova, I. G. Ovchinnikova, O. N. Kazheva, A. N. Chekhlov, O. A. Dyachenko, G. L. Rusinov, V. I. Filyakova, V. N. Charushin // Journal of Fluorine Chemistry. - 2007. - Vol. 128, № 7. - P762-768
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Fluorinated enaminoketones, a new type of ligands, bearing two independent coordination centers (polyether's and fluorinated enaminoketones fragments) have been obtained. The crystal structure of the Cu(II) complex of 1,5-bis-[2-(4`,4`,4`-trifluoro-1`-methyl-3`oxo-but-1`-enylamino)-phenoxy]-3-oxapentane (10) has been elucidated by X-ray crystallography. The results obtained show that the complex 10 consists of two crystallographically independent molecules C26H24CuF6N2O5 (A and B), and the metal atom in the complex 10 has four-coordinated arrangement, as a polyhedron with a distorted square with two nitrogen and two oxygen atoms located in corners.

\\\\expert2\\nbo\\Journal of Fluorine Chemistry\\2007, v.128. p.762.pdf

Инвентарный номер: нет.
   
   H 62


   
    Heterospin complexes based on dinuclear CuII triketonate and nitroxides [Electronic resource] / V. Ovcharenko, S. V. Fokin, G. V. Romanenko, V. Ikorskii, R. S. Sagdeev, D. S. Yachevskii, D. L. Chizhov, V. N. Charushin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2006. - Vol. 55, № 11. - P1904-1908
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Heterospin complexes of bis(?2-1,1,2,2,8,8,9,9-octafluorononane-3,5,7-trionato)dicopper(II) ([Cu2L2]) with nitronyl nitroxides 2-(1-methyl-1H-pyrazol-4-yl)-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazole-1-oxyl 3-oxide (2) and 4,4,5,5-tetramethyl-2-(3-pyridinyl)-4,5-dihydro-1H-imidazole-1-oxyl 3-oxide (1) were synthesized and structurally characterized. Crystals of the complexes are formed by the discrete bis[1-methyl-4-(4,4,5,5-tetramethyl-3-oxide-1-oxyl-4,5-dihydro-1H-imidazol-2-yl)-1H-pyrazole]-bis (?2-1,1,2,2,8,8,9,9-octafluorononane-3,5,7-trionato)dicopper(II) etherate (3) and bis[3-(4,4,5,5-tetramethyl-3-oxide-1-oxyl-4,5-dihydro-1H-imidazol-2-yl)pyridine]-bis (?2-1,1,2,2,8,8,9,9-octafluorononane-3,5,7-trionato)dicopper(II) (4) molecules. Each Cu atom of the dinuclear chelate fragment coordinates one paramagnetic ligand through the N atom of the pyrazole or pyridine fragment, respectively. In complex 3, the paramagnetic ligands are located on one side of the plane of the chelate fragment, whereas the ligands in complex 4 are located above and below the plane of the chelate fragment. The magnetic properties of complexes 3 and 4 are determined by dominant antiferromagnetic exchange interactions between the unpaired electrons of the CuII atoms in the dinuclear Cu2L2 moiety

\\\\Expert2\\nbo\\Russian Chemical Bulletin\\2006, 55 (11), 1904.pdf

Инвентарный номер: нет.
   
   S 98


   
    Synthesis, structures, and magnetic properties of crystals of dinuclear copper(II) and cobalt(II) complexes with 3-(3,5-dimethylpyrazol-1-yl)-6-R-1,2,4,5-tetrazines [Electronic resource] / E. V. Cherdantseva, D. V. Starichenko, P. A. Slepukhin, R. I. Ishmetova, Yu. N. Shvachko, A. V. Korolev, G. L. Rusinov, V. V. Ustinov, A. I. Matern, V. N. Charushin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2010. - Vol. 59, № 4. - P717-723
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
DINUCLEAR COMPLEXES -- SPIN MAGNETISM -- TETRAZINES
Аннотация: Dinuclear complexes of CuII with 3-(3,5-dimethylpyrazol-1-yl)-6-(2-hydroxyethylami-no)-1,2,4,5-tetrazine (1) and CoII with 3-(3,5-dimethylpyrazol-1-yl)-6-(piperidin-1-yl)-1,2,4,5- tetrazine (2) were synthesized and structurally characterized, and the magnetic (SQUID) and resonance (EPR) properties of van der Waals crystals based on these complexes were studied. Unusual behavior of the effective magnetic moment ?eff(T) is observed at T < 60 K. A nonmonotonic increase in eff() for 1 (s~6 %) and a 20% reduction of eff for 2 have a common origin and are due to the influence of spin-orbital coupling on the character of the splitting between the t2g and eg levels of the central ion. Distortions of the coordination site “switch on” a positive (1) or negative (2) contribution of the orbital magnetic moment near 6 K. Irreversible temperature behavior of eff(T) in the heating and cooling regimes in the vicinity of 60 K suggests that the character of structural distortions and the magnetic properties are related to ligand geometry. This factor plays a significant role in crystal engineering of magnetoactive structures with polynitrogen ligands

\\\\Expert2\\nbo\\Russian Chemical Bulletin\\2010, 59 (4), 717-723.pdf

Инвентарный номер: нет.
   
   C 51


   
    Chelates of fluoroalkyl containing enaminoketones [Electronic resource] / V. I. Filyakova, D. L. Chizhov, E. F. Khmara, V. N. Charushin // Russian Journal of General Chemistry. - 2010. - Vol. 80, № 1. - P190-201
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Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The structure and areas of practical application of fluoroalkyl containing enaminoketone chelates with d-metals are reviewed. Synthesis of ligands and the routes to the regioisomeric enaminoketones are also considered

\\\\Expert2\\nbo\\Russian Journal of General Chemistry\\2010, V. 80, N 1, p.190.pdf

Инвентарный номер: нет.
   


   
    2,6-Bis(5-trifluoromethylpyrazol-3-yl)pyridine : complexation with selected d-metals [Text] : доклад, тезисы доклада / E. F. Khmara, D. L. Chizhov, A. A. Sidorov, G. G. Alexandrov, V. I. Filyakova, G. L. Rusinov, I. L. Eremenko, V. N. Charushin // International conference "Topical Problems of Organometallic and Coordination Chemistry", V Razuvaev lectures, N. Novgorod, September 3-9 2010 : book of abstracts . - Nizhny Novgorod, 2010. - P34 : рис. - Bibliogr. : p. 34 (2 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ


Инвентарный номер: нет.
   
   T 44


   
    The C-C coupling of ferrocenes with electron-deficlent azaaromatics - a new route for construction of heterocyclic ligands and complexes [] / O. N. Chupakhin, I. S. Kovalev, I. A. Utepova, V. L. Rusinov, V. N. Charushin // 20-th International Congress of Heterocyclic Chemistry, Palermo, July 31-August 5, 2005 : book of abstracts . - Palermo, Italy, 2005. - С. 507. - Библиогр.: с. 507 (3 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ


Инвентарный номер: нет.
   
   N 50


   
    Neutral tetranuclear Cu(II) complex of 2,6-di(5-trifluoromethylpyrazol-3-yl)pyridine: Synthesis, characterization and its transformation with selected aza-ligands [Электронный ресурс] / E. F. Zhilina, D. L. Chizhov, A. A. Sidorov, G. G. Aleksandrov, M. Kiskin, P. A. Slepukhin, M. Fedin, V. N. Charushin // Polyhedron. - 2013. - Vol.53. - P122-131
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
COPPER (II) COMPLEX -- X-RAY -- MAGNETIC PROPERTIES
Аннотация: New tetranuclear Cu(II) complex [Cu4(L)4]·MeCN (1) with 2,6-di(5-trifluoromethyl-1H-pyrazol-3-yl)pyridine (H2L) was synthesized. It has been shown that treatment of 1 with selected aza-ligands (pyridine, 2,2′- and 4,4′-bipyridyl, 2,3,5,6-tetra-(pyridine-2-yl)pyrazine, 2,2′;6′,2″-terpyridine and 1,4-diazabicyclo[2.2.2]octane) leads to formation of other Cu(II) complexes with different nuclearity: [Cu(L)py2] (2), [Cu(L)(2,2′-bpy)] (3), [Cu(L)2(tppz)]·THF (5), [Cu(L)tpy]·C6H5CN (4), {[Cu2(L)2(4,4′-bpy)2]·(C6H5CH3)·MeCN}n (6) and {[Cu(L)DABCO]·2MeCN}n (7). Obtained compounds were characterized by IR spectroscopy, X-ray crystallography data, EPR and SQUID magnetic measurements. --------------------------------------------------------------------------------

\\\\Expert2\\NBO\\Polyhedron\\2013. v.53. p.122.pdf

Инвентарный номер: нет.
   
   N 58


   
    Nickel(II) and copper(II) complexes based on N-(2-Carboxyethyl) alkanolamines: Influence of the amino alcohol structure on the coordination sphere of the metal center [Electronic resource] / A. V. Pestov, P. A. Slepukhin, O. V. Koryakova, V. N. Charushin // Russian Journal of Coordination Chemistry. - 2014. - Vol.40, №4. - С. 216-223. - Bibliogr. : p. 223 (28 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
NICKEL(II) COMPLEXES -- ALCOHOL STRUCTURE -- ALKANOLAMINES
Аннотация: New nickel(II) complexes based on N-(3-hydroxypropyl)-β-alanine, N-(bis(hydroxyme -thyl)methyl)-β-alanine, and N-(tris(hydroxymethyl)methyl) -β-alanine are synthesized, and their structures are studied by X-ray diffraction analysis. The coordination spheres of the nickel and copper metal centers in the condensed phase are compared for a series of N-substituted β-alaninate ligands with the regularly changed dentate mode. In the case of the copper(II) complexes, an increase in the size of the alkanolamine chelate ring or the number of hydroxymethyl groups provides the formation of achiral coordination struc -tures, whereas the structures of the nickel(II) complexes are independent of the size of the lkanolamine che -late ring or the number of hydroxymethyl groups, thus providing the formation of the complexes as racemic modifications

\\\\expert2\\nbo\\Russian Journal of Coordination Chemistry\\2014, v. 40, N. 4, p.216.pdf

Инвентарный номер: нет.
   
   T 98


   
    Two Approaches in the Synthesis of Planar Chiral Azinylferrocenes [Electronic resource] / I. A. Utepova, O. N. Chupakhin, P. O. Serebrennikova, A. A Musikhina, V. N. Charushin // Journal of Organic Chemistry. - 2014. - Vol. 79, № 18. - С. 8659-8667. - Bibliogr. : p. 8666-8667 (34 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
CHIRAL AZINYLFERROCENES -- CROSS-COUPLING REACTION -- HALOGENATED AZINES
Аннотация: Two synthetic routes to the chiral azinylferrocenes (CAFs) 5 and 15, key intermediates for the synthesis of new enantiomerically enriched P,N-ligands, have been compared. The first approach is based on the palladium-catalyzed cross-coupling reaction of halogenated azines with organozinc derivatives of ferrocenes (the Negishi reaction). The second approach exploits a new synthetic methodology, which provides a shorter pathway, through the direct C–H functionalization of aromatics by the C–C coupling of halogen-free (hetero)arenes with lithium ferrocenes bearing stereogenic C and S atoms. The palladium complexes of P,N-ligands have been used as catalysts for the Tsuji–Trost reaction, which proceeds with high enantioselectivity to give allylic substitution products in good yields.

\\\\expert2\\nbo\\Journal of Organic Chemistry\\2014, v.79, p.8659.pdf

Инвентарный номер: нет.
   
   S 98


   
    Synthesis and characterization of new complexes derived from 4-thienyl substituted pyrimidines [Electronic resource] / E. M. Cherprakova, E. V. Verbitskiy, M. A. Kiskin, G. G. Aleksandrov, P. A. Slepukhin, A. A. Sidorov, D. V. Starichenko, Yu. N. Shvachko, I. L. Eremenko, G. L. Rusinov, V. N. Charushin // Polyhedron. - 2015. - Vol. 100. - С. 89-99. - Bibliogr. : p. 98-99 (42 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
PYRIMIDINE -- CYCLOPALLADATION -- MAGNETIC-PROPERTIES
Аннотация: The behavior of 4-thienyl substituted pyrimidine ligands (L1-3) has been studied for the series of their reactions with various salts of 3d metals (Co, Zn, Ni, Cu) and platinoids (Pt, Pd). In particular, mononuclear Co(OTf)(2)(L1-3)(2)(H2O)(2)(MeCN)(2) (1), binuclear Co-2(Piv)(2)(L1-3)(4) (2a,b), Cu-2(Piv)(2)(L1-3)(2) (5a,b), heterometallic polynuclear Li2Co2(Piv)(6)(L1-3)(2) (4) and chelate [(L-1)Pd(OAc)](2) (6) complexes have been obtained. The structures of all complexes have been established by X-ray diffraction. Also magnetic properties of coordination compounds 1, 2, 4 and 5 have been studied in details. In particular, mononuclear Co(II) complexes I and 4 proved to exhibit paramagnetism with large positive zero-field splitting parameters. Dinuclear Co(II) complexes 2a,b show weak antiferromagnetic interactions. Dinuclear Cu(II) complexes 5a,b demonstrate strong antiferromagnetic superexchange interactions via four carboxylate bridges. The systems 2a,b and 5a,b are isolated as exchange coupled dimers

\\\\expert2\\nbo\\Polyhedron\\2015, v.100, p.89-99.pdf

Инвентарный номер: нет.
   
   D 62


   
    Direct nuclophilic C-H functionalization of azines and their N-oxides by lithium derivatives of aldonitrones [Electronic resource] / M. V. Varaksin, I. A. Utepova, O. N. Chupakhin, V. N. Charushin // Tetrahedron. - 2015. - Vol. 71, №38. - С. 7077-7082. - Bibliogr. : p. 7082 (23 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
DIPOLE-STABILIZED CARBANIONS -- ORGANIC-SYNTHESIS -- CHEMICAL-PROPERTIES;
Аннотация: Novel ligands of the azine family for complexing with metals have been obtained as a result of the uncatalyzed C-C coupling reactions of quinoline, quinoxaline, 1,10-phenantroline, and their N-oxides with (1-oxido-3-phenyl-1,4-diazaspiro[4.5]deca-1,3-dien-2-yl)lithium

\\\\expert2\\nbo\\Tetrahedron\\2015, v. 71 , p. 7077-7082.pdf

Инвентарный номер: нет.
   
   S 98


   
    Synthesis, structure and photoluminescent properties of BF2 and BPh2 complexes with N,O-benzazine ligands [Electronic resource] / E. V. Nosova, T. N. Moshkina, G. N. Lipunova, I. V. Baklanova , P. A. Slepukhin, V. N. Charushin // Journal of Fluorine Chemistry. - 2015. - Vol. 175. - С. 145-151. - Bibliogr. : p. 150-151 (29 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
N,O-BIDENTATE LIGANDS -- BPh2 COMPLEXES -- BF2 COMPLEXES
Аннотация: Novel N,O-bidentate BF2 and BPh2 complexes have been prepared in good to excellent yields through coordination of 8-hydroxy-2-methylquinolines and 2-(2-hydroxyphenyl)-3H-quinazolin-4-ones with boron trifluoride etherate or triphenylborane under mild conditions. All complexes have been characterized by H-1, B-11 and F-19 NMR, mass-spectrometry and X-ray crystallography data. Some complexes have been found to exhibit a significant fluore.scence in acetonitrile solutions. Electronic and site effects of substituents in both heterocyclic and phenol fragments proved to have a profound impact on quantum yields.

\\\\expert2\\nbo\\Journal of Fluorine Chemistry\\2015,V.175, p.145-151.pdf

Инвентарный номер: нет.
   
   P 49


    Pestov, A. V.
    Copper and nickel chelate complexes with polydentate N,O-ligands: structure and magnetic properties of polynuclear complexes [Electronic resource] / A. V. Pestov, P. A. Slepukhin, V. N. Charushin // Russian Chemical Reviews. - 2015. - Vol. 84, № 3. - С. 310-333. - Bibliogr. : p. 331-333(182 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
HYDROGEN-BONDED BRIDGES -- RAY CRYSTAL-STRUCTURE -- SCHIFF-BASE LIGAND
Аннотация: A comparative analysis of the structures of copper(II) and nickel(II) chelate complexes with N-substituted 2-aminoethanols, 3-aminopropan- 1 -ols, glycines and beta-alanines is performed. It is shown that tetradentate ligands based on 3-aminopropan- 1 -ol and P-alanine, sterically hindered 2-aminoethanol derivatives and tridentate enamino ketone derivatives tend to form oligonuclear copper(II) and nickel(II) complexes. Glycine derivatives do not provide the formation of oligonuclear copper(II) and nickel(II) complexes. The magnetic properties of a number of polynuclear complexes are compared.

\\\\expert2\\nbo\\Russian Chemical Reviews\\2015, V.84, N38, p. 310-333.pdf

Инвентарный номер: нет.
   
   S 98


   
    Synthesis, crystal structures, and fluorescent properties of zinc(II) complexes with benzazino-2-carboxalidin-2-aminophenols [Electronic resource] / E. V. Nosova, T. V. Stupina, O. N. Chupakhin, M. S. Valova, P. A. Slepukhin, V. N. Charushin // Open Chemistry. - 2015. - Vol. 13, № 1. - С. 61-67. - Bibliogr. : p. 67 (26 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
BENZAZINE-2-CARBALDEHYDE -- O-AMINOPHENOL -- SCHIFF BASE
Аннотация: Complexes ZnL2 with novel fluorinated benzazines as tridentate ligands (HL = 6,7-difluoroquinoxalinand 6,7-difluoroquinolincarboxalidin-2-aminophenol) have been prepared. The photophisical properties of the ligands and the complexes has been studied.

\\\\expert2\\nbo\\Open Chemistry\\2015. V. 13(1). P. 61-67.pdf

Инвентарный номер: нет.
   
   N 85


    Nosova, E. V.
    New benzazine ligands and their complexes: synthesis and photophysical properties / E. V. Nosova, G. N. Lipunova, V. N. Charushin // International Congress on Heterocyclic Chemistry «KOST-2015», Moscow, October 18-23 2015 : book of abstr. - Moscow, 2015. - С. 120
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
BENZAZINE LIGANDS -- PHOTOPHYSICAL PROPERTIES -- LIGANDS BENZAZINE


Инвентарный номер: нет.
   
   B 78


   
    Boron(III) Complexes with N,​N'- and N,​O-​Heterocyclic Ligands: Synthesis and Spectroscopic Properties [Electronic resource] / G. N. Lipunova, E. V. Nosova, V. N. Charushin, O. N. Chupakhin // Comments on Inorganic Chemistry. - 2016. - Vol. 2016. - С. 1153470
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
PROPERTIES -- PREPARATION -- SYNTHETIC PREPARATION
Аннотация: This review is focused on consideration of effects of the nature of N,​N'- and N,​O-​bidentate ligands on the structure and optical properties of their B(III) complexes. It has been established that B(III) complexes with asym. N,​N'- and N,​O-​bidentate ligands, such as ortho-​hydroxyphenyl substituted azaheterocycles and heteryl-​β-​ketoimines, exhibit large Stokes shifts, enhanced intensity, and extended range for luminescence in solns. as well as in solid state, comparable with characteristics of the family of BODIPYs derivs. Complexes of some bidentate ligands can be considered as promising fluorophores for applications in biomedical imaging, electroluminescent, solar cell devices, and other fields.

\\\\expert2\\nbo\\Comments on Inorganic Chemistry\\2016. P. 1153470.pdf

Инвентарный номер: нет.
   


   
    Single-crystal x-ray diffraction studies in a series of 5-pentafluorophenyl-2,2'-bipyridines and their fused analogs / M. V. Varaksin, E. S. Starnovskaya, D. S. Kopchuk [и др.] // Russian journal of general chemistry. - 2020. - Т. 90, № 2. - P235-237
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
6-ARYL-5-PENTAflUOROPHENYL-2,2'-BIPYRIDINES -- LIGANDS -- SINGLE-CRYSTAL X-RAY DIFFRACTION ANALYSIS -- STRUCTURAL EFFECT
Аннотация: Structure of three 6-aryl-5-pentafluorophenyl-2,2'-bipyridines has been studied by means of single-crystal X-ray diffraction analysis. The effect of some functional fragments on the structural organization of compounds, in particular, donor and acceptor substituents in the aryl moiety, as well as annulated benzene and cyclopentane rings on the molecular structure and crystal packing of pentafluorophenyl-modified 2,2'-bipyridine ligand systems has been analyzed.


Инвентарный номер: нет.
   


   
    Substituted 2-(2-hydroxyphenyl)–3H-quinazolin-4-ones and their difluoroboron complexes: Synthesis and photophysical properties / T. N. Moshkina, E. V. Nosova, V. N. Charushin [et al.] // Spectrochimica acta part A: molecular and biomolecular spectroscopy. - 2021. - Vol. 252. - P119497
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ESIPT -- FLUORESCENCE -- O-LIGAND -- BF2-COMPLEX2-(2-HYDROXYPHENYL)–3H-QUINAZOLIN-4-ONES
Аннотация: 2-(2-Hydroxyphenyl)–3H-quinazolin-4-ones with diverse substituents at phenol ring and their six-membered difluoroboron complexes have been synthesized via few-stage approach. The photophysical properties of target compounds have been investigated in two solvents as well as in the solid state. The nature of substituents and substitution point in the phenol moiety of ligands and resulting BF2-complexes on the photophysical properties of dyes have been explored. The complex bearing two t-Bu groups proved to be the most emissive in solid state, whereas its 5-methoxy and 4-diethylamino counterparts possess strong emission in toluene solution. The dyes exhibited large Stokes shifts which was attributed to excited state intramolecular proton transfer (ESIPT). Additionally, fluorescence of quinazolinones in the mixture of THF/water was studied. All ligands demonstrated emission enhancement with increase of water fraction which was due to aggregation induced emission.


Инвентарный номер: нет.
   


   
    Novel pentafluorophenyl- and alkoxyphenyl-appended 2,2'-bipyridine push-pull fluorophores: a convenient synthesis and photophysical studies / T. D. Moseev, E. A. Nikiforov, M. V. Varaksin [et al.] // Synthesis. - 2021. - Vol. 53, № 19. - P3597-3607
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
2,2′-BIPYRIDINES -- 1,2,4-TRIAZINES -- POLYFLUOROARENES
Аннотация: A convenient method for the synthesis of new highly in non-polar solvents soluble photoactive pentafluorophenyl-substituted and extended alkoxyphenyl-substituted 2,2′-bipyridines is reported. The synthetic strategy for the preparation of such ligands involves a sequence of several structural transformations, such as O-alkylation, nucleophilic substitution of hydrogen (SN H) in 1,2,4-triazine precursors via the ‘addition–elimination’ scheme, and the subsequent conversion of the obtained 1,2,4-triazines into 2,2′-bipyridines by means of the aza-Diels–Alder reaction. The photophysical properties of the synthesized novel pentafluoroaryl-substituted 2,2′-bipyridines were comprehensively studied. The obtained photophysical data indicate the competitive advantages of the herein reported pentafluoroarylated push–pull fluorophores, bearing extended aliphatic moieties, over their analogues containing benzoxy or phenolic fragments in terms of improvement in quantum yield and well-pronounced positive solvatochromism confirmed by the mathematical analysis according to the Lippert–Mataga equation.


Инвентарный номер: нет.
   


   
    Synthetic approaches and supramolecular properties of 2,2′:N′,M″-terpyridine domains (N = 3,4,5,6; M = 2,3,4) based on the 2,2'-bipyridine core as ligands with k2n-bidentate coordination mode / O. S. Taniya, D. S. Kopchuk, A. F. Khasanov [et al.] // Coordination Chemistry Reviews. - 2021. - Vol. 442. - Ст. 213980
Рубрики: ХИМИЧЕСКИЕ НАУКИ