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Astaf'eva TV, Yambulatov DS, Nikolaevskii SA, Shmelev MA, Babeshkin KA, Efimov NN, Poddel'sky AI, Eremenko IL, Kiskin MA. The First Tetranuclear Iron(II)‐Gadolinium(III) Carboxylate Complex [Fe
2
Gd
2
(piv)
10
(bpy)
2
]: Synthesis, Structure Elucidation and Magnetic Properties. ChemistrySelect 2022. [DOI: 10.1002/slct.202203612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Tatiana V. Astaf'eva
- Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences Leninsky prosp. 31 119991 Moscow Russian Federation
| | - Dmitriy S. Yambulatov
- Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences Leninsky prosp. 31 119991 Moscow Russian Federation
| | - Stanislav A. Nikolaevskii
- Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences Leninsky prosp. 31 119991 Moscow Russian Federation
| | - Maxim A. Shmelev
- Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences Leninsky prosp. 31 119991 Moscow Russian Federation
| | - Konstantin A. Babeshkin
- Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences Leninsky prosp. 31 119991 Moscow Russian Federation
| | - Nikolay N. Efimov
- Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences Leninsky prosp. 31 119991 Moscow Russian Federation
| | - Andrey I. Poddel'sky
- Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences Leninsky prosp. 31 119991 Moscow Russian Federation
| | - Igor L. Eremenko
- Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences Leninsky prosp. 31 119991 Moscow Russian Federation
| | - Mikhail A. Kiskin
- Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences Leninsky prosp. 31 119991 Moscow Russian Federation
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Synthesis, Structure and Photoluminescence Properties of Cd and Cd-Ln Pentafluorobenzoates with 2,2′:6′,2′-Terpyridine Derivatives. INORGANICS 2022. [DOI: 10.3390/inorganics10110194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Six new complexes [Cd(tpy)(pfb)2] (1, tpy = 2,2′:6′,2″-terpyridine), [Ln2Cd2(tpy)2(pfb)10] (Ln = Eu (2Eu), Tb (2Tb)), [Ln2Cd2(tbtpy)2(pfb)10]·2MeCN (Ln = Eu (3Eu), Tb (3Tb), tbtpy = 4,4′,4″-tri-tert-butyl-2,2′:6′,2″-terpyridine), [Eu2Cd2(tppz)(pfb)10]n (4, tppz = 2,3,5,6-tetra-(pyridin-2-yl)pyrazine) based on pentafluorobenzoic acid (Hpfb) have been prepared and investigated. The effect of tridentate ligands on geometry heterometallic scaffolds synthesized complexes is discussed. The supramolecular crystal structures of the new compounds are stabilized by π-π, C-F···π, C-H···O, C-H...F, F….F interactions. Non-covalent interactions have been studied using Hirschfeld surface analysis. The obtained compounds were characterized by single-crystal and powder X-ray diffraction, luminescence spectroscopy, IR spectroscopy, CHN analysis. Complexes 2Ln and 3Ln exhibit metal-centered photoluminescence, but the presence of ligand luminescence bands indicates incomplete energy transfer from the d-block to the lanthanide ion.
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Malkerova IP, Kayumova DB, Belova EV, Shmelev MA, Sidorov AA, Alikhanyan AS. Zinc Pentafluorobenzoate [Zn2(H2O)(C6F5COO)4(Py)4]: Synthesis, Structure, and Thermodynamic Characteristics. RUSS J COORD CHEM+ 2022. [DOI: 10.1134/s1070328422100037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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4
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2,3,4,5,6-Pentabromobenzoic Acid. MOLBANK 2022. [DOI: 10.3390/m1455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Pentabromobenzoate is a useful fragment in organic synthesis and in coordination chemistry. Among known synthetic approaches to pentabromobenzoic acid (PBA), we have assessed and identified exhaustive bromination of benzoic acid by using 1.3-dibromoisocyanuric acid in concentrated H2SO4 solution as the most efficient method for the preparation of PBA on a multigram scale. As the crude bromination product is typically contaminated with 3,4,5,6-tetrabromobenzoic acid (TBA) and pentabromobenzene, C6Br5H, a simple purification protocol for preparation of analytically pure PBA has been developed. The molecular structure and crystal packing of PBA established by single-crystal X-ray diffractometry suggests a pattern of H-bonding and halogen bonding in solid state.
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Heteroleptic Zn(II)–Pentaiodobenzoate Complexes: Structures and Features of Halogen–Halogen Non-Covalent Interactions in Solid State. INORGANICS 2022. [DOI: 10.3390/inorganics10100151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Reactions between Zn(II) nitrate, pentaiodobenzoic acid (HPIBA) and different pyridines in dimethylformamide (DMF) result in the formation of the heteroleptic neutral complexes [Zn(3,5-MePy)2PIBA2] (1) and [Zn(DMF)3(NO3)PIBA] (2). Both compounds were isolated in pure form, as shown by the PXRD data. The features of specific non-covalent interactions involving halogen atoms (halogen bonding) were examined by means of DFT calculations (QTAIM analysis and the estimation of corresponding energies).
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Shmelev MA, Gogoleva NV, Ivanov VK, Kovalev VV, Razgonyaeva GA, Kiskin MA, Sidorov AA, Eremenko IL. Heterometallic Ln(III)–Cd(II) Complexes with Anions of Monocarboxylic Acids: Synthetic Approaches and Analysis of Structures and Photoluminescence Properties. RUSS J COORD CHEM+ 2022. [DOI: 10.1134/s1070328422090056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Shmelev MA, Voronina YK, Gogoleva NV, Kiskin MA, Sidorov AA, Eremenko IL. Synthesis and Crystal Structure of {$${\text{Eu}}_{2}^{\text{III}}$$Cd2}, {$${\text{Tb}}_{2}^{{{\text{III}}}}$$Cd2} and {$$\text{Eu}_{2}^{\text{III}}$$Zn2} Complexes with Pentafluorobenzoic Acid Anions and Acetonitrile. RUSS J COORD CHEM+ 2022. [DOI: 10.1134/s1070328422040042] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Effect of Non-Covalent Interactions on the 2,4- and 3,5-Dinitrobenzoate Eu-Cd Complex Structures. CRYSTALS 2022. [DOI: 10.3390/cryst12040508] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Heterometallic {Eu2Cd2} complexes [Eu2(NO3)2Cd2(Phen)2(2,4-Nbz)8]n·2nMeCN (I) and [Eu2(MeCN)2Cd2(Phen)2(3,5-Nbz)10] (II) with the 2,4-dinitrobenzoate (2,4-Nbz) and 3,5-dinitrobenzoate (3,5-Nbz) anions and 1,10-phenanthroline were synthesized. The compounds obtained were characterized by X-ray single-crystal analysis, powder X-ray diffraction analysis, IR spectroscopy, and elemental analysis. Moreover, the thermal stability of the complexes was also studied. Analysis of the crystal packing showed that where 1,10-phenanthroline is combined with various isomers of dinitrobenzoate anions, different arrangements of non-covalent interactions are observed in the complex structures. In the case of the compound with the 2,4-dinitrobenzoate anion, these interactions lead to a significant distortion of the metal core geometry and formation of a polymeric structure, while the complex with the 3,5-dinitrobenzoate anion has a structure that is typical of similar systems. The absence of europium metal-centered luminescence at 270 nm wavelength was shown. For all the reported compounds, a thermal stability study was carried out that showed that the compounds decomposed with a significant thermal effect.
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Zorina-Tikhonova EN, Chistyakov AS, Matyukhina AK, Efimov NN, Shmelev MA, Skabitsky IV, Kiskin MA, Sidorov AA, Eremenko IL. EFFECT OF SUBSTITUENT IN MALONATE ANIONS ON THE STRUCTURE OF Zn(II) COORDINATION POLYMERS. J STRUCT CHEM+ 2021. [DOI: 10.1134/s0022476621080060] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Yashkova KA, Mel’nikov SN, Nikolaevskii SA, Shmelev MA, Sidorov AA, Kiskin MA, Eremenko IL. SYNTHESIS AND STRUCTURE OF AN NONTRIVIAL COORDINATION POLYMER {[Na2Co(pfb)2(H2O)8](pfb)2}n WITH PENTAFLUOROBENZOATE ANIONS. J STRUCT CHEM+ 2021. [DOI: 10.1134/s0022476621090067] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Shmelev MA, Voronina YK, Chekurova SS, Gogoleva NV, Ivanova TM, Lyamina OI, Fatyushina EV, Kiskin MA, Sidorov AA, Eremenko IL. Coordination of Hexahydro-1,3,5-trimethyl-1,3,5-triazine in Cadmium(II) and Cobalt(II) Carboxylate Complexes. RUSS J COORD CHEM+ 2021. [DOI: 10.1134/s1070328421080078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Cadmium-Inspired Self-Polymerization of {Ln IIICd 2} Units: Structure, Magnetic and Photoluminescent Properties of Novel Trimethylacetate 1D-Polymers (Ln = Sm, Eu, Tb, Dy, Ho, Er, Yb). Molecules 2021; 26:molecules26144296. [PMID: 34299571 PMCID: PMC8307922 DOI: 10.3390/molecules26144296] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/25/2021] [Accepted: 06/28/2021] [Indexed: 11/17/2022] Open
Abstract
A series of heterometallic carboxylate 1D polymers of the general formula [LnIIICd2(piv)7(H2O)2]n·nMeCN (LnIII = Sm (1), Eu (2), Tb (3), Dy (4), Ho (5), Er (6), Yb (7); piv = anion of trimethylacetic acid) was synthesized and structurally characterized. The use of CdII instead of ZnII under similar synthetic conditions resulted in the formation of 1D polymers, in contrast to molecular trinuclear complexes with LnIIIZn2 cores. All complexes 1–7 are isostructural. The luminescent emission and excitation spectra for 2–4 have been studied, the luminescence decay kinetics for 2 and 3 was measured. Magnetic properties of the complexes 3–5 and 7 have been studied; 4 and 7 exhibited the properties of field-induced single-molecule magnets in an applied external magnetic field. Magnetic properties of 4 and 7 were modelled using results of SA-CASSCF/SO-RASSI calculations and SINGLE_ANISO procedure. Based on the analysis of the magnetization relaxation and the results of ab initio calculations, it was found that relaxation in 4 predominantly occurred by the sum of the Raman and QTM mechanisms, and by the sum of the direct and Raman mechanisms in the case of 7.
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Heteroleptic cadmium(ii) and terbium(iii) pentafluorobenzoate-benzoate and pentafluorobenzoate-2-furancarboxylate compounds. Russ Chem Bull 2021. [DOI: 10.1007/s11172-021-3156-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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