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Of all publications in the section: 5
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Article
Buikin Petr A., Rudenko A. Y., Baranchikov A. E. et al. Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya. 2018. Vol. 44. No. 6. P. 373-379.

The following bromobismuthates of organic cations (dipyridinoalkane derivatives) are synthesized and characterized: (4-NH2PyC5)BiBr5 (I), (2-MePyC2)BiBr5 (II), (2-NH2PyC10)BiBr5 center dot 0.65H(2)O (III), (2-NH2PyC10)(4)H5O2(BiBr6)(3) (IV), (2-NH2PyD6)(2)KBi2Br11 (V), (2-NH2PyC6)H3OBiBr6 center dot 2.33H(2)O (VI), and (2-NH2PyC6)(3)(BiBr6)(2) center dot CH3CN (VII). Three compounds obtained (I-III) contain the zigzag 1D chain (BiBr5) (n) . A new type of 1D chains, (KBi2Br11) (n) , is found in the structure of compound V. Pseudo-1D chains of BiBr6 (3-) anions can be observed in the 3D structures of compounds IV, VI, and VII. The crystallographic data were deposited with the Cambridge Crystallographic Data Centre (CIF files CCDC 1569478 (I)-1569484 (VII), respectively)

Added: Oct 17, 2018
Article
Buikin Petr A., Rudenko A. Y., Ilyukhin A. B. et al. Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya. 2020. Vol. 46. No. 2. P. 111-118.

Abstract—Hybrid bromobismuthates of N-alkylated derivatives of 2- and 3-methylpyridine, (C15H20N2)2Bi2Br10 (I), (C17H24N2)2Bi2Br10 (II), (C18H26N2)3(Bi2Br9)2 (III), (C14H18N2)(H3O)BiBr6 ∙ 2H2O (IV), (C14H18N2)2BiBr6IBr2 (V), (C16H22N2)3(Bi2Br9)2 (VI), and (C18H26N2)3(Bi2Br9)2 (VII), are synthesized in concentrated HBr and characterized by physicochemical methods. The structures of complexes I–VII are studied by X-ray structure analysis (CIF files CCDC nos. 1946844–1946850). Complexes I and II contain anions [Bi2Br10] 4–. Anions [Bi2Br9] 3– are found in the structures of compounds III, VI, and VII Bis(3-methyl-1-pyridino)ethane bromobismuthate IV contains cations H3O+ and anions [BiBr6] 3– and, unlike other bromobismuthates, decomposes at low temperatures. In presence of HI vapors, double bismuthate V containing the [BiBr6] 3– and IBr2 2– anions crystallizes along with compound IV.

Added: Jan 23, 2020
Article
Belousov Y., Gontcharenko V. E., Lunev A. M. et al. Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya. 2020. Vol. 46. P. 394-401.

Complexes {(NMe2H2)[Ln(TDA)(HCOO)] ∙ 0.5H2O)} are prepared by the solvothermal synthesis in a water–dimethylformamide (1 : 1) system from a mixture of 1,2,3-triazole-4,5-dicarboxylic acid (H3TDA), NaOH, and Ln(NO3)3 (Ln = Eu, Gd). The crystal structure of the europium complex is determined by X-ray structure analysis (CIF file CCDC no. 1939689). This compound is shown to be the ionic metal-organic framework, where the cavities in the anionic structure of [Eu(TDA)(HCOO)]– are partially occupied by the dimethylammonium cations and water molecules. The study of the luminescence spectra of the gadolinium derivative gives the energy of the triplet level of the H3TDA ligand (~25 300 cm–1), the value of which makes it possible to efficiently sensitize the luminescence of rare-earth metal ions, in particular, Eu3+. The decay kinetics and the emission and excitation spectra of the heterometallic derivatives {(NMe2H2)[Gd1 – xEux(TDA)(HCOO)] ∙ 0.5H2O)} are studied. The dilution of europium with gadolinium results in a substantial decrease in the concentration quenching of the europium luminescence and an increase in the observed lifetimes of the excited state of Eu3+.

Added: Nov 1, 2020
Article
Mainichev D. A., Sokolov M., Rogachev A. et al. Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya. 2014. Vol. 40. No. 7. P. 460-467.

Alkyl xanthate complexes [Nb2S4(S2COR)4] (R = Et (I), iso-Pr (II), n-Bu (III), and iso-Am (IV)) are synthesized by the ligand exchange reaction in solutions from (Et4N)4[Nb2S4(NCS)8] and the corresponding potassium salts in satisfactory yields. The X-ray diffraction analyses are carried out for the isopropyl xanthate (II) and butyl xanthate (III) complexes. From the view point of mutual arrangement of chelate cycles, complexes II and III exist in crystals as ΛΔ isomers. The niobium-niobium distances are 2.8789(4) Å in complex II and 2.8856(3) Å in complex III. The first example for the formation of short S...S contacts between the disulfide ligands of the {Nb2S4}4+ fragments in the crystal structure of III is found (3.146 Å).

Added: Nov 14, 2014
Article
Ройтерштейн Д. М., Ананьев И. В., Нифантьев И. Э. и др. Координационная химия. 2020. Т. 46. № 5. С. 270-279.

The reactions of lanthanum and neodymium triphenylacetates with polydentate 6- and 18-membered N- and O-heterocyclic ligands give various types of mononuclear triphenylacetate complexes containing a polydentate auxiliary ligand (neutral or cationic and anionic): [Nd(Ph3CCOO)(3)(Me(3)TACH)] center dot CHCl3 (II), [La(Ph3CCOO)(4)(Me(3)TACH)](-)[NH4Me](+) (III), [La(Ph3CCOO)(3)(18-crown-6)] (IV), and [Nd(Ph3CCOO)(2)(18-crown-6)](+)[Nd(Ph3CCOO)(4)](-) (V) and binuclear complex [La-2(Ph3CCOO)(3)-(Me(3)TACH)] center dot 2C(6)H(5)CH(3) (I) (CIF files CCDC no. 1968815 (I), 1968813 (II), 1968814 (III), 1968812 (IV), and 1968816 (V)). A minor change in the ionic radius, e.g., on going from La to Nd, results in a changed coordination environment. These changes can be followed using macrocyclic polydentate ligands.

Added: Sep 3, 2020