882-35-9Relevant academic research and scientific papers
A Novel Family of Polyiodo-Bromoantimonate(III) Complexes: Cation-Driven Self-Assembly of Photoconductive Metal-Polyhalide Frameworks
Adonin, Sergey A.,Udalova, Liubov I.,Abramov, Pavel A.,Novikov, Alexander S.,Yushina, Irina V.,Korolkov, Ilya V.,Semitut, Evgeniy Y.,Derzhavskaya, Tatiyana A.,Stevenson, Keith J.,Troshin, Pavel A.,Sokolov, Maxim N.,Fedin, Vladimir P.
, p. 14707 - 14711 (2018)
In the presence of different cations, reactions of [SbBr6]3? and I2 result in a new family of diverse supramolecular 1D polyiodide-bromoantimonate networks. The coordination number of Sb, as well as geometry of assembling {Ix}n? polyhalide units, can vary, resulting in unprecedented structural types. The nature of I???Br interactions was studied by DFT calculations; estimated energy values are 1.6–6.9 kcal mol?1. Some of the compounds showed strong photoconductivity in thin films, suggesting multiple feasible applications in optoelectronics and solar energy conversion.
Synthesis, crystal structure, and characterization of a novel supramolecular cluster compound [(BPE)3(WOS3Cu 3Br4)2]
Cao, Ting,Chen, Hong,Chen, Chunguang,Chen, Yuqing,Zhang, Zhenhua,Niu, Yun-Yin
, p. 417 - 419 (2013)
Orange-yellow crystals of the title compound were obtained from the reaction of [NH4]2[WO2S2], CuI, and bpe·Br2 (1:3:2) in DMF solution. And the crystal system is trigonal, space group P-3 c 1, with unit cell parameters a = 13.9730(15) A, b = 13.9730 A, c = 18.1365(19) A, and Z = 2. This cluster compound possesses a wheel-shaped supramolecular structure containing tetranuclear cluster core. Copyright Taylor & Francis Group, LLC.
Modulation of Reduction Potentials of Bis(pyridinium)alkane Dications through Encapsulation within Cucurbit[7]uril
Tcyrulnikov, Nikolai A.,Varadharajan, Ramkumar,Tikhomirova, Anastasiia A.,Pattabiraman, Mahesh,Ramamurthy, Vaidhyanathan,Wilson, R. Marshall
, p. 8759 - 8765 (2019)
Supramolecular modulation of reduction potentials of two series of bis(pyridinium)alkane salts is described. Study of the encapsulation of bis(pyridinium)alkane guests within the CB[7] cavity revealed the critical influence of the linker length and the position of the heteroatom on the reduction potentials of encapsulated guests. CB[7] complexation of pyridinium salts induced reduction potential changes ranging between +50 and -430 mV. Noncovalent modulation of the electron-accepting ability of organic cations can be utilized in electron-transfer-initiated reactions.
Unexpected Polymorphism in Bromoantimonate(III) Complexes and Its Effect on Optical Properties
Usoltsev, Andrey N.,Sukhikh, Taisiya S.,Novikov, Alexander S.,Shayapov, Vladimir R.,Pishchur, Denis P.,Korolkov, Ilya V.,Sakhapov, Ilyas F.,Fedin, Vladimir P.,Sokolov, Maxim N.,Adonin, Sergey A.
, p. 2797 - 2804 (2021)
Reactions of [SbBr6]3- containing HBr solutions with bromide salts of 1,1′-(1,2-ethanediyl)bis(pyridine) (PyC22+) or 1,1′-(1,2-ethanediyl)bis(3,5-dimethylpyridine) (3,5-MePyC22+) initially result in the formation of the deep orange complexes Cat[SbBr5] (1 and 2), featuring unusual Sb···Br interactions in the solid state. In the mother liquor, 1 transforms into discrete binuclear (C2Py)2[Sb2Br10], which demonstrates polymorphism (triclinic 3 and monoclinic 4), while 2 transforms into polymeric (3,5-MePy){[SbBr4]} (5). DFT calculations reveal that the system of noncovalent Sb···Br contacts may be responsible for the appearance of the observed optical properties (unusual deep orange coloring).
Hybrid salts of binuclear Bi(III) halide complexes with 1,2-bis(pyridinium)ethane cation: Synthesis, structure and luminescent behavior
Adonin, Sergey A.,Rakhmanova, Marianna I.,Samsonenko, Denis G.,Sokolov, Maxim N.,Fedin, Vladimir P.
, p. 232 - 235 (2016)
Reactions between 1,2-bis(pyridinium)ethane bromide ((BPE)Br2) and [BiCl6]3-/[BiBr6]3- in HCl or HBr results in isostructural binuclear complexes (BPE)2[Bi2X10] (X = Cl (1) and Br (2)) which were characterized by X-ray diffractometry, IR and Raman spectroscopy. Both complexes manifest orange-red luminescence in solid state.
Cucurbit[7]uril host-guest and pseudorotaxane complexes with α,ω-bis(pyridinium)alkane dications
Wyman, Ian W.,MacArtney, Donal H.
, p. 4045 - 4051 (2009)
The host molecule cucurbit[7]uril forms very stable host-guest complexes (1:1 and 2:1) and [2]pseudorotaxanes with α,ω-bis(pyridinium)alkane dications in aqueous solution. With the dications containing pyridinium, 2- and 3-picolinium, and 4-dimethylaminop
Bromoantimonates with bis(pyridinium)-type dications obtained via oxidation by dibromine: Diverse structural types and features of interactions pattern
Bondarenko, Mikhail A.,Abramov, Pavel A.,Plyusnin, Pavel E.,Novikov, Alexander S.,Sokolov, Maxim N.,Adonin, Sergey A.
, (2021/05/10)
Bromoantimonate(III) species, which can be generated in solution by reaction of Sb2O3 and HBr, can be oxidized by Br2 into mixed-valence complexes or bromoantimonates(V). The outcome of these reactions governs by the nature of cation which salt is used for isolation of solid complexes. Using bromides of three 1,n-bis(pyridinium)alkane cations (PyCn, where X = 2, 3 and 4), we isolated three complexes: (PyC2){[SbBr6](Br3)} (1), (PyC3)2[Sb2Br9][SbBr6] (2) and (PyC4){[SbBr6](Br3)} (3), respectively. Their structures were determined by X-ray diffractometry. For 1 and 3, the energies of non-covalent interactions between tribromide units and [SbBr6]? were estimated using DFT calculations.
Three novel cation-templated metal thiocyanates with 1-2D polypseudorotaxane frameworks
Qiao, Yong-Zhen,Yue, Jun-Ming,Liu, Xiu-Cun,Niu, Yun-Yin
experimental part, p. 6885 - 6892 (2012/04/17)
Three novel cation-templated complexes, {(BPE)3[Ag 4Br4(SCN)6]}n (1), {(DEBP) [Cu 2(SCN)4]}n (2) and {(DIBP) [Cu 2(SCN)4]}n (3) [BPE = 1, 2-bis (pyridinium) ethane; DEBP = 1, 1′-diethyl-4, 4′-bipyridinium dibromide; DIBP = 1, 1′-diisopentyl-4, 4′-bipyridinium], have been synthesized via self-assembly reaction in solution. Complex 1 possesses a one-dimensional polyrotaxane architecture with the organic cation BPE trapped in it, whereas both compounds 2 and 3 are infinite 2D supramolecular polypseudorotaxane, linked by bridging thiocyanate groups. All compounds were further characterized with IR spectra, thermal analysis, ultraviolet and fluorescence properties. The Royal Society of Chemistry 2011.
Preparation and in vitro screening of symmetrical bispyridinium cholinesterase inhibitors bearing different connecting linkage-initial study for Myasthenia gravis implications
Musilek, Kamil,Komloova, Marketa,Zavadova, Vlasta,Holas, Ondrej,Hrabinova, Martina,Pohanka, Miroslav,Dohnal, Vlastimil,Nachon, Florian,Dolezal, Martin,Kuca, Kamil,Jung, Young-Sik
body text, p. 1763 - 1766 (2010/08/21)
Reversible inhibitors (e.g., pyridostigmine bromide, neostigmine bromide) of carbamate origin are used in the early treatment of Myasthenia gravis (MG) to block acetylcholinesterase (AChE) native function and conserve efficient amount of acetylcholine for
One-pot synthesis of five and six membered N, O, S-heterocycles using a ditribromide reagent
Yella, Ramesh,Patel, Bhisma K.
body text, p. 754 - 763 (2010/11/03)
In a one-pot procedure, bromine less brominating reagent 1,1′-(ethane-1,2-diyl)dipyridinium bistribromide (EDPBT) has been utilized as an efficient desulfurizing agent for the construction of a library of heterocycles containing N, O, and S starting from aryl/alkyl isothiocyanates. In this approach, aryl/alkyl isothiocyanate reacts with o-phenylenediamine (o-PD), o-aminophenol, and o-aminothiophenol to form their monothiourea which on desulfurization with EDPBT led to the formation of corresponding 2-aminobenzimidazoles, 2-aminobenzoxazoles, and 2-aminobenzothiazoles, respectively. An interesting regioselectivity was observed for unsymmetrical thiourea having a naphthyl moiety on the one side and an ortho amino or an ortho hydroxy phenyl group on the other side giving a completely different product which is mainly dependent on the nature of the nucleophiles (-OH or -NH 2). Further, the bis-thioureas resulted from the aliphatic 1,2-diamine with 2 equiv of aryl isothiocyanates on treatment with EDPBT gave imidazolidenecarbothioamides, whereas bis-thioureas resulted from aromatic 1,2-diamine yielded benzimidazoles with concurrent expulsion of an isothiocyanate unit. This method is simple and applied to various substrates which are amenable to bromination that reveals the desulfurizing ability of EDPBT predominating over its brominating ability. Finally, the spent reagent EDPDB can be recovered, regenerated, and reused without any loss of activity.
