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Näther C, Jess I. Synthesis, crystal structure and properties of poly[(μ-2-methyl-pyridine N-oxide-κ 2O: O)bis-(μ-thio-cyanato-κ 2N: S)cobalt(II)]. Acta Crystallogr E Crystallogr Commun 2024; 80:67-71. [PMID: 38312158 PMCID: PMC10833374 DOI: 10.1107/s2056989023010721] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Accepted: 12/14/2023] [Indexed: 02/06/2024]
Abstract
The title compound, [Co(NCS)2(C6H7NO)]n or Co(NCS)2(2-methyl-pyridine N-oxide), was prepared by the reaction of Co(NCS)2 and 2-methyl-pyridine N-oxide in methanol. All crystals obtained by this procedure show reticular pseudo-merohedric twinning, but after recrystallization, one crystal was found that had a minor component with only a very few overlapping reflections. The asymmetric unit consists of one CoII cation, two thio-cyanate anions and one 2-methyl-pyridine N-oxide coligand in general positions. The CoII cations are octa-hedrally coordinated by two O-bonding 2-methyl-pyridine N-oxide ligands, as well as two S- and two N-bonding thio-cyanate anions, and are connected via μ-1,3(N,S)-bridging thio-cyanate anions into chains that are linked by μ-1,1(O,O) bridging coligands into layers. No pronounced directional inter-molecular inter-actions are observed between the layers. The 2-methyl-pyridine coligand is disordered over two orientations and was refined using a split model with restraints. Powder X-ray diffraction (PXRD) indicates that a pure sample was obtained and IR spectroscopy confirms that bridging thio-cyanate anions are present. Thermogravimetry and differential thermoanalysis (TG-DTA) shows one poorly resolved mass loss in the TG curve that is accompanied by an exothermic and an endothermic signal in the DTA curve, which indicate the decomposition of the 2-methyl-pyridine N-oxide coligands.
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Affiliation(s)
- Christian Näther
- Institut für Anorganische Chemie, Universität Kiel, Max-Eyth.-Strasse 2, 24118 Kiel, Germany
| | - Inke Jess
- Institut für Anorganische Chemie, Universität Kiel, Max-Eyth.-Strasse 2, 24118 Kiel, Germany
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Müller-Meinhard A, Jess I, Näther C. Synthesis, crystal structure and properties of chlorido-tetra-kis-(pyridine-3-carbo-nitrile)-thio-cyanato-iron(II). Acta Crystallogr E Crystallogr Commun 2023; 79:1173-1178. [PMID: 38313120 PMCID: PMC10833408 DOI: 10.1107/s205698902300988x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 11/14/2023] [Indexed: 02/06/2024]
Abstract
Reaction of FeCl2·4H2O with KSCN and 3-cyano-pyridine (pyridine-3-carbo-nitrile) in ethanol accidentally leads to the formation of single crystals of Fe(NCS)(Cl)(3-cyano-pyridine)4 or [FeCl(NCS)(C6H4N2)4]. The asymmetric unit of this compound consists of one FeII cation, one chloride and one thio-cyanate anion that are located on a fourfold rotation axis as well as of one 3-cyano-pyridine coligand in a general position. The FeII cations are sixfold coordinated by one chloride anion and one terminally N-bonding thio-cyanate anion in trans-positions and four 3-cyano-pyridine coligands that coordinate via the pyridine N atom to the FeII cations. The complexes are arranged in columns with the chloride anions, with the thio-cyanate anions always oriented in the same direction, which shows the non-centrosymmetry of this structure. No pronounced inter-molecular inter-actions are observed between the complexes. Initially, FeCl2 and KSCN were reacted in a 1:2 ratio, which lead to a sample that contains the title compound as the major phase together with a small amount of an unknown crystalline phase, as proven by powder X-ray diffraction (PXRD). If FeCl2 and KSCN is reacted in a 1:1 ratio, the title compound is obtained as a nearly pure phase. IR investigations reveal that the CN stretching vibration for the thio-cyanate anion is observed at 2074 cm-1, and that of the cyano group at 2238 cm-1, which also proves that the anionic ligands are only terminally bonded and that the cyano group is not involved in the metal coordination. Measurements with thermogravimetry and differential thermoanalysis reveal that the title compound decomposes at 169°C when heated at a rate of 4°C min-1 and that the 3-cyano-pyridine ligands are emitted in two separate poorly resolved steps. After the first step, an inter-mediate compound with the composition Fe(NCS)(Cl)(3-cyano-pyridine)2 of unknown structure is formed, for which the CN stretching vibration of the thio-cyanate anion is observed at 2025 cm-1, whereas the CN stretching vibration of the cyano group remain constant. This strongly indicates that the FeII cations are linked by μ-1,3-bridg-ing thio-cyanate anions into chains or layers.
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Affiliation(s)
- Asmus Müller-Meinhard
- Institut für Anorganische Chemie, Universität Kiel, Max-Eyth. Str. 2, 24118 Kiel, Germany
| | - Inke Jess
- Institut für Anorganische Chemie, Universität Kiel, Max-Eyth. Str. 2, 24118 Kiel, Germany
| | - Christian Näther
- Institut für Anorganische Chemie, Universität Kiel, Max-Eyth. Str. 2, 24118 Kiel, Germany
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Näther C, Müller-Meinhard A, Jess I. Synthesis, crystal structure and properties of tetra-kis-(pyridine-3-carbo-nitrile)-dithio-cyanatoiron(II) and of diaqua-bis-(pyridine-3-carbo-nitrile)-di-thio-cyanatoiron(II) pyridine-3-carbo-nitrile monosolvate. Acta Crystallogr E Crystallogr Commun 2023; 79:1093-1099. [PMID: 37936852 PMCID: PMC10626964 DOI: 10.1107/s205698902300909x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 10/16/2023] [Indexed: 11/09/2023]
Abstract
The reaction of iron thio-cyanate with 3-cyano-pyridine (C6H4N2) leads to the formation of two compounds with the composition [Fe(NCS)2(C6H4N2)4] (1) and [Fe(NCS)2(C6H4N2)2(H2O)2]·2C6H4N2 (2). The asymmetric unit of 1 consists of one iron cation, two thio-cyanate anions and four 3-cyano-pyridine ligands in general positions. The iron cation is octa-hedrally coordinated by two N-bonded thio-cyanate anions and four 3-cyano-pyridine ligands. The complexes are arranged in columns along the crystallographic c-axis direction and are linked by weak C-H⋯N inter-actions. In 2, the asymmetric unit consists of one iron cation on a center of inversion as well as one thio-cyanate anion, one 3-cyano-pyridine ligand, one water ligand and one 3-cyano-pyridine solvate mol-ecule in general positions. The iron cation is octa-hedrally coordinated by two N-bonded thio-cyanate anions, two cyano-pyridine ligands and two water ligands. O-H⋯N and C-H⋯S hydrogen bonding is observed between the water ligands and the solvent 3-cyano-pyridine mol-ecules. In the crystal structure, alternating layers of the iron complexes and the solvated 3-cyano-pyridine mol-ecules are observed. Powder X-ray (PXRD) investigations reveal that both compounds were obtained as pure phases and from IR spectroscopic measurements conclusions on the coordination mode of the thio-canate anions and the cyano-group were made. Thermogravimetric (TG) and differential thermoanalysis (DTA) of 1 indicate the formation of a compound with the composition {[Fe(NCS)2]3(C6H4N2)4}n that is isotypic to the corresponding Cd compound already reported in the literature. TG/DTA of 2 show several mass losses. The first mass loss corresponds to the removal of the two water ligands leading to the formation of 1, which transforms into {[Fe(NCS)2]3(C6H4N2)4}n, upon further heating.
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Affiliation(s)
- Christian Näther
- Institut für Anorganische Chemie, Universität Kiel, Max-Eyth.-Str. 2, 24118 Kiel, Germany
| | - Asmus Müller-Meinhard
- Institut für Anorganische Chemie, Universität Kiel, Max-Eyth.-Str. 2, 24118 Kiel, Germany
| | - Inke Jess
- Institut für Anorganische Chemie, Universität Kiel, Max-Eyth.-Str. 2, 24118 Kiel, Germany
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Näther C, Jess I. Synthesis, crystal structure and reactivity of bis-(μ-2-methyl-pyridine N-oxide-κ 2O: O)bis-[di-bromido-(2-methyl-pyridine N-oxide-κ O)cobalt(II)] butanol monosolvate. Acta Crystallogr E Crystallogr Commun 2023; 79:972-976. [PMID: 37936843 PMCID: PMC10626943 DOI: 10.1107/s2056989023008228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 09/19/2023] [Indexed: 11/09/2023]
Abstract
Reaction of CoBr2 with 2-methyl-pyridine N-oxide in n-butanol leads to the formation of the title compound, [CoBr2]2(2-methyl-pyridine N-oxide)4·n-butanol or [Co2Br4(C6H7NO)4]·C4H10O. The asymmetric unit of the title compound consists of one CoII cation as well as two bromide anions and two 2-methyl-pyridine N-oxide coligands in general positions and one n-butanol mol-ecule that is disordered around a center of inversion. The CoII cations are fivefold coordinated by two bromide anions and one terminal as well as two bridging 2-methyl-pyridine N-oxide and linked by two symmetry-related μ-1,1(O,O) 2-methyl-pyridine N-oxide coligands into dinuclear units that are located on centers of inversion. In the crystal structure, the dinuclear units are also connected via pairs of C-H⋯Br hydrogen bonds into chains that elongate in the b-axis direction. The n-butanol mol-ecules are located between the chains and are linked via O-H⋯Br hydrogen bonds each to one chain. Powder X-ray diffraction (PXRD) measurements reveal that a pure phase has been obtained. Measurements using thermogravimetry and differential thermoanalysis shows one mass loss up to 523 K, in which the n-butanol mol-ecules are removed. PXRD measurements of the residue obtained after n-butanol removal shows that a completely different crystalline phase has been obtained and IR investigations indicate significant structural changes in the Co coordination.
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Affiliation(s)
| | - Inke Jess
- Institut für Anorganische Chemie, Universität Kiel, Germany
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Näther C, Jess I. Synthesis, crystal structure and thermal behavior of tetra-kis-(3-cyano-pyridine N-oxide-κ O)bis-(thio-cyanato-κ N)cobalt(II), which shows strong pseudo-symmetry. Acta Crystallogr E Crystallogr Commun 2023; 79:867-871. [PMID: 37817952 PMCID: PMC10561199 DOI: 10.1107/s2056989023006862] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 08/04/2023] [Indexed: 10/12/2023]
Abstract
The title compound, [Co(SCN)2(C6H4N2O)4], was prepared by the reaction of cobalt(II)thio-cyanate with 3-cyano-pyridine N-oxide in ethanol. In the crystal, the cobalt(II) cations are octa-hedrally coordinated by two terminal N-bonded thio-cyanate anions and four O-bonded 3-cyano-pyridine N-oxide coligands, forming discrete complexes that are located on centers of inversion, hence forming trans-CoN2O4 octa-hedra. The structure refinement was performed in the monoclinic space group P21/n, for which a potential lattice translation and new symmetry elements with a fit of 100% is suggested. The structure can easily be refined in the space group I2/m, where the complexes have 2/m symmetry. However, nearly all of the reflections that violate the centering are observed with significant intensity and the refinement in P21/n leads to significantly lower R(F) values (0.027 versus 0.033). Moreover, in I2/m much larger components of the anisotropic displacement parameters are observed and therefore, the crystal structure is presented in the primitive unit cell. IR investigations confirm that the anionic ligands are only terminally bonded and that the cyano group is not involved in the metal coordination. PXRD investigations show that a pure crystalline phase has been obtained and measurements using simultaneously thermogravimetry and differential thermoanalysis reveal that the compound decomposes in an exothermic reaction upon heating, without the formation of a coligand-deficient inter-mediate phase.
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Affiliation(s)
| | - Inke Jess
- Institut für Anorganische Chemie, Universität Kiel, Germany
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Näther C, Mangelsen S, Boeckmann J. Synthesis, crystal structure and thermal decomposition pathway of bis-(iso-seleno-cyanato-κ N)tetra-kis-(pyridine-κ N)manganese(II). Acta Crystallogr E Crystallogr Commun 2023; 79:482-487. [PMID: 37151823 PMCID: PMC10162072 DOI: 10.1107/s2056989023003535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Accepted: 04/18/2023] [Indexed: 05/09/2023]
Abstract
The reaction of MnCl2·2H2O with KSeCN and pyridine in water leads to the formation of the title complex, [Mn(NCSe)2(C5H5N)4], which is isotypic to its Fe, Co, Ni, Zn and Cd analogues. In its crystal structure, discrete complexes are observed that are located on centres of inversion. The Mn cations are octa-hedrally coordinated by four pyridine coligands and two seleno-cyanate anions that coordinate via the N atom to the metal centres to generate trans-MnN(s)2N(p)4 octa-hedra (s = seleno-cyanate and p = pyridine). In the extended structure, weak C-H⋯Se contacts are observed. Powder X-ray diffraction (PXRD) investigations prove that a pure sample was obtained and in the IR and Raman spectra, the C-N stretching vibrations are observed at 2058 and 2060 cm-1, respectively, in agreement with the terminal coordination of the seleno-cyanate anions. Thermogravimetric investigations reveal that the pyridine coligands are removed in two separate steps. In the first mass loss, a compound with the composition Mn(NCSe)2(C5H5N)2 is formed, whereas in the second mass loss, the remaining pyridine ligands are removed, which is superimposed with the decomposition of Mn(NCSe)2 formed after ligand removal. In the inter-mediate compound Mn(NCSe)2(C5H5N)2, the CN stretching vibration is observed at 2090 cm-1 in the Raman and at 2099 cm-1 in the IR spectra, indicating that the Mn cations are linked by μ-1,3-bridging anionic ligands. PXRD measurements show that a compound has formed that is of poor crystallinity. A comparison of the powder pattern with that calculated for the previously reported Cd(NCSe)2(C5H5N)2 indicates that these compounds are isotypic, which was proven by a Pawley fit.
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Affiliation(s)
- Christian Näther
- Institut für Anorganische Chemie, Universität Kiel, Max-Eyth-Strasse 2, 24118 Kiel, Germany
| | - Sebastian Mangelsen
- Institut für Anorganische Chemie, Universität Kiel, Max-Eyth-Strasse 2, 24118 Kiel, Germany
| | - Jan Boeckmann
- Institut für Anorganische Chemie, Universität Kiel, Max-Eyth-Strasse 2, 24118 Kiel, Germany
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Näther C, Jess I, Mangelsen S. Synthesis, crystal structure, thermal and spectroscopic properties of ZnX 2-2-methylpyrazine (X = Cl, Br, I) coordination compounds. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2023. [DOI: 10.1515/znb-2022-0306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/10/2023]
Abstract
Abstract
Reaction of zinc(II) chloride, bromide and iodide with 2-methylpyrazine (2-Mepyz) leads to the formation of coordination compounds with the composition ZnX2(2-Mepyz)2 (X = Cl; 1-Cl, Br; 1-Br and I; 1-I). In the compounds each Zn cation is tetrahedrally coordinated by two halide anions and two 2-methylpyrazine ligands forming discrete complexes. TG-DTA and temperature dependent PXRD measurements prove that upon heating compounds 1 transform into new compounds with the composition ZnX2(2-Mepyz) (2), that are subsequently converted into compounds with the composition (ZnX2)3(2-Mepyz) (3) upon further heating. It was also found that compounds 2 can be prepared directly in solution. For ZnI2(2-Mepyz) (2-I) crystals were obtained and characterized by single crystal X-ray diffraction, whereas the crystal structures of 2-Cl and 2-Br were determined ab initio from PXRD data. In these compounds the Zn cations are also tetrahedrally coordinated and linked into chains by bridging 2-methylpyrazine ligands. The (ZnX2)3(2-Mepyz) compounds can only be obtained by thermal decomposition, and the products are of poor crystallinity and extremely hygroscopic, which prevented structure determinations.
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Affiliation(s)
- Christian Näther
- Institut für Anorganische Chemie, Christian-Albrechts-Universität zu Kiel , Max-Eyth-Straße 2, 24118 Kiel , Germany
| | - Inke Jess
- Institut für Anorganische Chemie, Christian-Albrechts-Universität zu Kiel , Max-Eyth-Straße 2, 24118 Kiel , Germany
| | - Sebastian Mangelsen
- Institut für Anorganische Chemie, Christian-Albrechts-Universität zu Kiel , Max-Eyth-Straße 2, 24118 Kiel , Germany
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Näther C, Jess I. Syntheses, crystal structures and thermal properties of catena-poly[cadmium(II)-di-μ-bromido-μ-pyridazine-κ 2 N 1: N 2] and catena-poly[cadmium(II)-di-μ-iodido-μ-pyridazine-κ 2 N 1: N 2]. Acta Crystallogr E Crystallogr Commun 2023; 79:302-307. [PMID: 37057021 PMCID: PMC10088319 DOI: 10.1107/s2056989023002001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 03/02/2023] [Indexed: 03/12/2023]
Abstract
The reactions of cadmium bromide and cadmium iodide with pyridazine (C4H4N2) in ethanol under solvothermal conditions led to the formation of crystals of [CdBr2(pyridazine)] n (1) and [CdI2(pyridazine)] n (2), which were characterized by single-crystal X-ray diffraction. The asymmetric units of both compounds consist of a cadmium cation located on the inter-section point of a twofold screw axis and a mirror plane (2/m), a halide anion that is located on a mirror plane and a pyridazine ligand, with all atoms occupying Wyckoff position 4e (mm2). These compounds are isotypic and consist of cadmium cations that are octa-hedrally coordinated by four halide anions and two pyridazine ligands and are linked into [100] chains by pairs of μ-1,1-bridging halide anions and bridging pyridazine ligands. In the crystals, the pyridazine ligands of neighboring chains are stacked onto each other, indicating π-π inter-actions. Larger amounts of pure samples can also be obtained by stirring at room-temperature, as proven by powder X-ray diffraction. Measurements using thermogravimetry and differential thermoanalysis (TG-DTA) reveal that upon heating all the pyridiazine ligands are removed in one step, which leads to the formation of CdBr2 or CdI2.
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Affiliation(s)
- Christian Näther
- Institut für Anorganische Chemie, Universität Kiel, Max-Eyth.-Str. 2, 24118 Kiel, Germany
| | - Inke Jess
- Institut für Anorganische Chemie, Universität Kiel, Max-Eyth.-Str. 2, 24118 Kiel, Germany
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Näther C, Jess I, Krebs C. Synthesis, crystal structure and thermal properties of tetra-kis-(3-methyl-pyridine-κ N)bis-(thio-cyanato-κ N)nickel(II). Acta Crystallogr E Crystallogr Commun 2023; 79:19-23. [PMID: 36628365 PMCID: PMC9815138 DOI: 10.1107/s2056989022011379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 11/25/2022] [Indexed: 12/14/2022]
Abstract
Reaction of Ni(NCS)2 with 3-methyl-pyridine in water leads to the formation of crystals of the title compound, [Ni(NCS)2(C6H7N)4]. All of them are of poor quality and non-merohedrally twinned but a refinement using data in HKLF-5 format leads to a reasonable structure model and reliability factors. The crystal structure of the title compound consists of discrete complexes, in which the nickel cations are sixfold coordinated by two terminal N-bonded thio-cyanate anions and four 3-methyl-pyridine ligands within slightly distorted octa-hedra. One of the 3-methyl-pyridine ligands is disordered and was refined using a split model. The discrete complexes are arranged into layers. X-ray powder diffraction proves that pure samples have been obtained, and in the IR spectrum, the CN stretching vibration is observed at 2072 cm-1, in agreement with the presence of only terminally coordinated thio-cyanate anions. Comparing the calculated powder pattern with those of the residues obtained by solvent removal from several solvates already reported in the literature proves that, in each case, this crystalline phase is formed. Assessing the crystal structures of the solvates in comparison with that of the ansolvate reveals some similarities.
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Affiliation(s)
- Christian Näther
- Institut für Anorganische Chemie, Universität Kiel, Max-Eyth.-Str. 2, 24118 Kiel, Germany
| | - Inke Jess
- Institut für Anorganische Chemie, Universität Kiel, Max-Eyth.-Str. 2, 24118 Kiel, Germany
| | - Christoph Krebs
- Institut für Anorganische Chemie, Universität Kiel, Max-Eyth.-Str. 2, 24118 Kiel, Germany
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Krebs C, Jess I, Näther C. Synthesis, crystal structure and thermal properties of bis-(aceto-nitrile-κ N)bis-(3-bromo-pyridine-κ N)bis-(thio-cyanato-κ N)cobalt(II). Acta Crystallogr E Crystallogr Commun 2023; 79:14-18. [PMID: 36628362 PMCID: PMC9815133 DOI: 10.1107/s2056989022011380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 11/25/2022] [Indexed: 12/14/2022]
Abstract
Single crystals of the title compound, [Co(NCS)2(C5H4BrN)2(C2H3N)2], were obtained by the reaction of Co(NCS)2 with 3-bromo-pyridine in aceto-nitrile. The CoII cations lie on crystallographic inversion centers and are coordinated by two N-bonded thio-cyanate anions, two 3-bromo-pyridine and two aceto-nitrile ligands thereby forming slightly distorted CoN6 octa-hedra. In the crystal, these complexes are linked by C-H⋯S and C-H⋯N hydrogen bonds into a three-dimensional network. In the direction of the crystallographic b-axis, the complexes are arranged into columns with neighboring 3-bromo-pyridine ligands stacked onto each other, indicating π-π inter-actions. The CN stretching vibration of the thio-cyanate anions is observed at 2066 cm-1, in agreement with the presence of only N-bonded anionic ligands. TG-DTA measurements reveal that in the first mass loss the aceto-nitrile ligands are removed and that in the second step, half of a 3-bromo-pyridine ligand is lost, leading to the formation of a polymeric compound with the composition [(Co(NCS)2)2(C5H4BrN)3] n already reported in the literature.
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Affiliation(s)
- Christoph Krebs
- Institute of Inorganic Chemistry, University of Kiel, Max-Eyth-Str. 2, 24118 Kiel, Germany
| | - Inke Jess
- Institute of Inorganic Chemistry, University of Kiel, Max-Eyth-Str. 2, 24118 Kiel, Germany
| | - Christian Näther
- Institute of Inorganic Chemistry, University of Kiel, Max-Eyth-Str. 2, 24118 Kiel, Germany
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Näther C, Boeckmann J. Synthesis, crystal structure and properties of bis-(iso-seleno-cyanato-κ N)tetra-kis-(pyridine-κ N)nickel(II). Acta Crystallogr E Crystallogr Commun 2023; 79:90-94. [PMID: 36793409 PMCID: PMC9912460 DOI: 10.1107/s2056989023000245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 01/10/2023] [Indexed: 01/13/2023]
Abstract
The reaction of nickel chloride hexa-hydrate with potassium seleno-cyanate and pyridine in water leads to the formation of crystals of the title complex, [Ni(NCSe)2(C5H5N)4], which were characterized by single-crystal X-ray diffraction. Its crystal structure consists of discrete complexes, located on centers of inversion, in which the Ni cations are sixfold coordinated by two terminal N-bonded seleno-cyanate anions and four pyridine ligands within a slightly distorted octa-hedral coordination. In the crystal, the complexes are connected by weak C-H⋯Se inter-actions. PXRD investigations revealed that a pure crystalline phase has formed. In the IR and Raman spectra, the C-N stretching vibrations are observed at 2083 and 2079 cm-1, respectively, in agreement with the presence of only terminally bonded anionic ligands. Upon heating, one well-resolved mass loss is observed, in which two of the four pyridine ligands are removed, leading to a compound with the composition Ni(NCSe)2(C5H5N)2. In this compound, the C-N stretching vibration is shifted to 2108 cm-1 (Raman) and 2115 cm-1 (IR), indicating the presence of μ-1,3-bridging anionic ligands. In its PXRD pattern, very broad reflections are observed, indicating for poor crystallinity and/or very small particle size. This crystalline phase is not isotypic to its Co and Fe analogs.
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Affiliation(s)
- Christian Näther
- Institut für Anorganische Chemie, Universität Kiel, Max-Eyth-Str. 2, 24118 Kiel, Germany
| | - Jan Boeckmann
- Institut für Anorganische Chemie, Universität Kiel, Max-Eyth-Str. 2, 24118 Kiel, Germany
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Näther C, Jess I, Krebs C. Synthesis, crystal structure and properties of catena-poly[[[bis-(3-methyl-pyridine-κ N)nickel(II)]-di-μ-1,3-thio-cyanato] aceto-nitrile monosolvate]. Acta Crystallogr E Crystallogr Commun 2022; 78:1097-1102. [PMID: 36380903 PMCID: PMC9638983 DOI: 10.1107/s2056989022009598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 09/29/2022] [Indexed: 11/06/2022]
Abstract
In the crystal structure of the title compound, {[Ni(NCS)2(C6H7N)2]·CH3CN} n , the NiII cation is octa-hedrally coordinated by two N-bonding and two S-bonding thio-cyanate anions, as well as two 3-methyl-pyridine coligands, with the thio-cyanate S atoms and the 3-methyl-pyridine N atoms in cis-positions. The metal cations are linked by pairs of thio-cyanate anions into chains that, because of the cis-cis-trans coordination, are corrugated. These chains are arranged in such a way that channels are formed in which disordered aceto-nitrile solvate mol-ecules are located. This overall structural motif is very similar to that observed in Ni(NCS)2[4-(boc-amino)-pyridine]2·CH3CN reported in the literature. At room temperature, the title compound loses its solvent mol-ecules within a few hours, leading to a crystalline phase that is structurally related to that of the pristine material. If the ansolvate is stored in an aceto-nitrile atmosphere, the solvate is formed again. Single-crystal X-ray analysis at room-temperature proves that the crystals decompose immediately, presumably because of the loss of solvent mol-ecules, and from the reciprocal space plots it is obvious that this reaction, in contrast to that in Ni(NCS)2[4-(boc-amino)-pyridine]2·CH3CN, does not proceed via a topotactic reaction.
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Affiliation(s)
- Christian Näther
- Institut für Anorganische Chemie, Universität Kiel, Max-Eyth.-Str. 2, 24118 Kiel, Germany
| | - Inke Jess
- Institut für Anorganische Chemie, Universität Kiel, Max-Eyth.-Str. 2, 24118 Kiel, Germany
| | - Christoph Krebs
- Institut für Anorganische Chemie, Universität Kiel, Max-Eyth.-Str. 2, 24118 Kiel, Germany
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Krebs C, Jess I, Näther C. Syntheses and crystal structures of the ethanol, acetonitrile and diethyl ether Werner clathrates bis-(iso-thio-cyanato-κ N)tetra-kis-(3-methyl-pyridine-κ N)nickel(II). Acta Crystallogr E Crystallogr Commun 2022; 78:993-998. [PMID: 36250119 PMCID: PMC9535821 DOI: 10.1107/s2056989022008891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 09/06/2022] [Indexed: 11/10/2022]
Abstract
The reaction of nickel(II)thio-cyanate with 3-methyl-pyridine (3-picoline; C6H7N) in different solvents leads to the formation of crystals of bis-(iso-thio-cyanato-κN)tetra-kis-(3-methyl-pyridine-κN)nickel(II) as the ethanol disolvate, [Ni(NCS)2(C6H7N)4]·2C2H5OH (1), the acetonitrile disolvate, [Ni(NCS)2(C6H7N)4]·2CH3CN (2), and the diethyl ether monosolvate, [Ni(NCS)2(C6H7N)4]·C4H10O (3). The crystal structures of these compounds consist of NiII cations coordinated by two N-bonded thio-cyanate anions and four 3-methyl-pyridine ligands to generate NiN6 octa-hedra with the thio-cyanate groups in a trans orientation. In compounds 1 and 2 these complexes are located on centers of inversion, whereas in compound 3, they occupy general positions. In the crystal structures, the complexes are packed in such a way that cavities are formed in which the solvent mol-ecules are located. Compounds 1 and 2 are isotypic, which is not the case for compound 3. In compounds 1 and 2 the solvate mol-ecules are disordered, whereas they are fully ordered in compound 3. Disorder is also observed for one of the 3-methyl-pyridine ligands in compound 2. Powder X-ray diffraction and IR measurements show that at room temperature all compounds decompose almost immediately into the same phase, as a result of the loss of the solvent mol-ecules.
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Affiliation(s)
- Christoph Krebs
- Institut für Anorganische Chemie, Universität Kiel, Max-Eyth-Str. 2, 24118 Kiel, Germany
| | - Inke Jess
- Institut für Anorganische Chemie, Universität Kiel, Max-Eyth-Str. 2, 24118 Kiel, Germany
| | - Christian Näther
- Institut für Anorganische Chemie, Universität Kiel, Max-Eyth-Str. 2, 24118 Kiel, Germany
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Ferchichi A, Makhlouf J, El Bakri Y, Saravanan K, Valkonen A, Hashem HE, Ahmad S, Smirani W. Self-assembly of new cobalt complexes based on [Co (SCN) 4], synthesis, empirical, antioxidant activity, and quantum theory investigations. Sci Rep 2022; 12:15828. [PMID: 36138056 PMCID: PMC9500081 DOI: 10.1038/s41598-022-18471-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Accepted: 08/12/2022] [Indexed: 11/09/2022] Open
Abstract
The cobalt (II) complexes have been synthesized from the reaction of the cationic entities (3,4-dimethylaniline (1) and histamine (2)) with metallic salt CoCl2⋅6H2O and thiocyanate ion (SCN-) as a ligand in H2O/ethanolic solution and processing by the evaporation crystal growth method at room temperature to get crystals. The synthesized complex has been fully characterized by single-crystal X-ray diffraction. UV-Visible, FTIR spectroscopy, TGA analysis, and DFT circulations were also performed. The crystal structural analysis reveals that the solid (1) {[Co(SCN)4] (C8H12N)3}·Cl crystallizes in the monoclinic system with the space group P21/n and the solid (2) {[Co(SCN)4](C5H11N3)2}·2Cl crystallizes in the monoclinic space group P21/m. Metal cations are joined into corrugated chains parallel to the b-axis direction in (1) and (2) by four thiocyanate anions. The crystal structures of (1) and (2) were calculated using XRPD data, indicating that they are closely connected to the DRX mono-crystal results. Different interactions pack the system into a ring formed by N-H⋯Cl and N-H⋯S hydrogen bonds. C-H⋯π and the π⋯π stacking of anilinuim ring for (1) and N-H⋯S intermolecular interactions for (1) and (2) increase the crystals' robustness. Hirshfeld surface analysis cum 2D fingerprint plots visualize the main intermolecular interactions with their contributions in the solid-state phase. The molecular geometries of both complexes obtained from the crystal structure were used for quantum chemical calculation. Here, frontier orbital analysis and electrostatic potential illustrate the chemical reactivities of metal-organic complexes. QTAIM and NCI analysis reveal the strength of interactions at the electronic level.
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Affiliation(s)
- Amal Ferchichi
- Labortory of Material Chemistry, Faculty of Sciences of Bizerte, University of Carthage, Bizerte Zarzouna, Tunisia
| | - Jawher Makhlouf
- Labortory of Material Chemistry, Faculty of Sciences of Bizerte, University of Carthage, Bizerte Zarzouna, Tunisia
| | - Youness El Bakri
- Department of Theoretical and Applied Chemistry, South Ural State University, Lenin Prospect 76, Chelyabinsk, Russian Federation, 454080
| | | | - Arto Valkonen
- Department of Chemistry, University of Jyvaskyla, 40014, Jyvaskyla, Finland
| | - Heba E Hashem
- Department of Chemistry, Faculty of Women, Ain Shams University, Cairo, Egypt.
| | - Sajjad Ahmad
- Department of Health and Biological Sciences, Abasyn University, Peshawar, 25000, Pakistan
| | - Wajda Smirani
- Labortory of Material Chemistry, Faculty of Sciences of Bizerte, University of Carthage, Bizerte Zarzouna, Tunisia
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Growth, single crystal investigations, Hirshfeld surface analysis, DFT studies, molecular dynamics simulations, molecular docking, physico-chemical characterization and biological activity of novel thiocyanic complex with zinc transition metal precursor. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.115937] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Ceglarska M, Krebs C, Näther C. Syntheses, crystal structures and properties of tetra-kis-(3-methyl-pyridine-κ N)bis-(iso-thio-cyanato-κ N)manganese(II) and tetra-kis-(3-methyl-pyridine-κ N)bis-(iso-thio-cyanato-κ N)iron(II). Acta Crystallogr E Crystallogr Commun 2022; 78:755-760. [PMID: 35855364 PMCID: PMC9260356 DOI: 10.1107/s2056989022006491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 06/23/2022] [Indexed: 11/16/2022]
Abstract
The reaction of Mn(NCS)2 or Fe(NCS)2 with 3-methyl-pyridine (C6H7N) leads to the formation of two isostructural compounds with compositions [Mn(NCS)2(C6H7N)4] (1) and [Fe(NCS)2(C6H7N)4] (2). IR spectroscopic investigations indicate that only terminally coordinated thio-cyanate anions are present. This is confirmed by single-crystal structure analysis, which shows that their crystal structures consist of discrete centrosymmetric complexes, in which the metal cations are octa-hedrally coordinated by two N-bonded thio-cyanate anions and four 3-methyl-pyridine ligands. X-ray powder diffraction (XRPD) proves that pure samples have been obtained. Thermogravimetric measurements show that decomposition starts at about 90°C and that the two coligands are removed in one step for 1 whereas for 2 no clearly resolved steps are visible. XRPD measurements of the residue obtained after the first mass loss of 1 show that a new and unknown crystalline compound has been formed.
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Affiliation(s)
- Magdalena Ceglarska
- Institute of Physics, Jagiellonian University, Lojasiewicza 11, 30-348 Kraków, Poland
| | - Christoph Krebs
- Institute of Inorganic Chemistry, University of Kiel, Max-Eyth.-Str. 2, 24118 Kiel, Germany
| | - Christian Näther
- Institute of Inorganic Chemistry, University of Kiel, Max-Eyth.-Str. 2, 24118 Kiel, Germany
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Makhlouf J, Valkonen A, Smirani W. Transition metal precursor impact on thiocyanate complexes crystallization: Isomorphous cobalt and nickel properties. Polyhedron 2022. [DOI: 10.1016/j.poly.2021.115625] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Krebs C, Thiele S, Ceglarska M, Näther C. Synthesis, Crystal Structures and Properties of Ni(NCS)
2
‐3‐Cyanopyridine Coordination Compounds including a Ferromagnetic Layered Compound. Z Anorg Allg Chem 2021. [DOI: 10.1002/zaac.202100204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Christoph Krebs
- Institute of Inorganic Chemistry Christian-Albrechts-University of Kiel Max-Eyth-Straße 2 24118 Kiel Germany
| | - Solveig Thiele
- Institute of Inorganic Chemistry Christian-Albrechts-University of Kiel Max-Eyth-Straße 2 24118 Kiel Germany
| | - Magdalena Ceglarska
- Institute of Physics Jagiellonian University Łojasiewicza 11 30-348 Kraków Poland
| | - Christian Näther
- Institute of Inorganic Chemistry Christian-Albrechts-University of Kiel Max-Eyth-Straße 2 24118 Kiel Germany
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Krebs C, Jess I, Näther C. Comparison of the crystal structures of the low- and high-temperature forms of bis-[4-(di-methyl-amino)-pyridine]-dithio-cyanato-cobalt(II). Acta Crystallogr E Crystallogr Commun 2021; 77:1120-1125. [PMID: 34868648 PMCID: PMC8587972 DOI: 10.1107/s2056989021010422] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 10/07/2021] [Indexed: 11/11/2022]
Abstract
Single crystals of the high-temperature form I of [Co(NCS)2(DMAP)2] (DMAP = 4-di-methyl-amino-pyridine, C7H10N2) were obtained accidentally by the reaction of Co(NCS)2 with DMAP at slightly elevated temperatures under kinetic control. This modification crystallizes in the monoclinic space group P21/m and is isotypic with the corresponding Zn compound. The asymmetric unit consists of one crystallographically independent Co cation and two crystallographically independent thio-cyanate anions that are located on a crystallographic mirror plane and one DMAP ligand (general position). In its crystal structure the discrete complexes are linked by C-H⋯S hydrogen bonds into a three-dimensional network. For comparison, the crystal structure of the known low-temperature form II, which is already thermodynamically stable at room temperature, was redetermined at the same temperature. In this polymorph the complexes are connected by C-H⋯S and C-H⋯N hydrogen bonds into a three-dimensional network. At 100 K the density of the high-temperature form I (ρ = 1.462 g cm-3) is higher than that of the low-temperature form II (ρ = 1.457 g cm-3), which is in contrast to the values determined by XRPD at room temperature. Therefore, these two forms represent an exception to the Kitaigorodskii density rule, for which extensive inter-molecular hydrogen bonding in form II might be responsible.
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Affiliation(s)
- Christoph Krebs
- Institute of Inorganic Chemistry, University of Kiel, Max-Eyth.-Str. 2, 24118 Kiel, Germany
| | - Inke Jess
- Institute of Inorganic Chemistry, University of Kiel, Max-Eyth.-Str. 2, 24118 Kiel, Germany
| | - Christian Näther
- Institute of Inorganic Chemistry, University of Kiel, Max-Eyth.-Str. 2, 24118 Kiel, Germany
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Krebs C, Jess I, Näther C. Synthesis, crystal structure and thermal properties of poly[bis-[μ 2-3-(amino-meth-yl)pyridine]-bis-(thio-cyanato)-cobalt(II)]. Acta Crystallogr E Crystallogr Commun 2021; 77:428-432. [PMID: 33936771 PMCID: PMC8025872 DOI: 10.1107/s2056989021003005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 03/22/2021] [Indexed: 11/10/2022]
Abstract
The reaction of Co(NCS)2 with 3-(amino-meth-yl)pyridine as coligand leads to the formation of crystals of the title compound, [Co(NCS)2(C6H8N2)2] n , that were characterized by single-crystal X-ray analysis. In the crystal structure, the CoII cations are octa-hedrally coordinated by two terminal N-bonded thio-cyanate anions as well as two pyridine and two amino N atoms of four symmetry-equivalent 3-(amino-meth-yl)pyridine coligands with all pairs of equivalent atoms in a trans position. The CoII cations are linked by the 3-(amino-meth-yl)pyridine coligands into layers parallel to the ac plane. These layers are further linked by inter-molecular N-H⋯S hydrogen bonding into a three-dimensional network. The purity of the title compound was determined by X-ray powder diffraction and its thermal behavior was investigated by differential scanning calorimetry and thermogravimetry.
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Affiliation(s)
- Christoph Krebs
- Institut für Anorganische Chemie, Christian-Albrechts-Universität zu Kiel, Max-Eyth-Str. 2, D-24118 Kiel, Germany
| | - Inke Jess
- Institut für Anorganische Chemie, Christian-Albrechts-Universität zu Kiel, Max-Eyth-Str. 2, D-24118 Kiel, Germany
| | - Christian Näther
- Institut für Anorganische Chemie, Christian-Albrechts-Universität zu Kiel, Max-Eyth-Str. 2, D-24118 Kiel, Germany
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Krebs C, Ceglarska M, Näther C. Synthesis, Crystal Structures and Properties of Polymorphic and Isomeric Nickel(II)thiocyanate Coordination Compounds with 3‐Bromopyridine as Coligand. Z Anorg Allg Chem 2021. [DOI: 10.1002/zaac.202000483] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Christoph Krebs
- Institute of Inorganic Chemistry Christian-Albrechts-University of Kiel Max-Eyth-Straße 2 24118 Kiel Germany
| | - Magdalena Ceglarska
- Institute of Physics Jagiellonian University Łojasiewicza 11 30-348 Kraków Poland
| | - Christian Näther
- Institute of Inorganic Chemistry Christian-Albrechts-University of Kiel Max-Eyth-Straße 2 24118 Kiel Germany
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Wellm C, Näther C. Crystal structure, synthesis and thermal properties of bis-(4-benzoyl-pyridine-κ N)bis-(iso-thio-cyanato-κ N)bis-(methanol-κ N)iron(II). Acta Crystallogr E Crystallogr Commun 2020; 76:276-280. [PMID: 32071762 PMCID: PMC7001824 DOI: 10.1107/s2056989020001152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 01/28/2020] [Indexed: 11/10/2022]
Abstract
In the crystal structure of the title compound, [Fe(NCS)2(C12H9NO)2(CH4O)2], the FeII cations are octa-hedrally coordinated by two N atoms of 4-benzoyl-pyridine ligands, two N atoms of two terminal iso-thio-cyanate anions and two methanol mol-ecules into discrete complexes that are located on centres of inversion. These complexes are linked via inter-molecular O-H⋯O hydrogen bonds between the methanol O-H H atoms and the carbonyl O atoms of the 4-benzoyl-pyridine ligands, forming layers parallel to (101). Powder X-ray diffraction proved that a pure sample was obtained but that this compound is unstable and transforms into an unknown crystalline phase within several weeks. However, the solvent mol-ecules can be removed by heating in a thermobalance, which for the aged sample as well as the title compound leads to the formation of a compound with the composition Fe(NCS)2(4-benzoyl-pyridine)2, which exhibits a powder pattern that is similar to that of Mn(NCS)2(4-benzoyl-pyridine)2.
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Affiliation(s)
- Carsten Wellm
- Institut für Anorganische Chemie, Universität Kiel, Max-Eyth. Str. 2, 24118 Kiel, Germany
| | - Christian Näther
- Institut für Anorganische Chemie, Universität Kiel, Max-Eyth. Str. 2, 24118 Kiel, Germany
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Wellm C, Majcher-Fitas AM, Rams M, Näther C. Impact of the synthetic approach on the magnetic properties and homogeneity of mixed crystals of tunable layered ferromagnetic coordination polymers. Dalton Trans 2020; 49:16707-16714. [DOI: 10.1039/d0dt03428b] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Different synthetic routes were applied to synthesize mixed crystals of [CoxNi1−x(NCS)2(4-tert-butylpyridine)2]n that finally results in homogeneous samples for which the critical temperature can be tuned as function of the Co : Ni ratio.
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Affiliation(s)
- Carsten Wellm
- Institut für Anorganische Chemie
- Christian-Albrechts-Universität zu Kiel
- 24118 Kiel
- Germany
| | | | - Michał Rams
- Institute of Physics
- Jagiellonian University
- 30-348 Krakow
- Poland
| | - Christian Näther
- Institut für Anorganische Chemie
- Christian-Albrechts-Universität zu Kiel
- 24118 Kiel
- Germany
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Neumann T, Gallo G, Jess I, Dinnebier RE, Näther C. Thermodynamically stable and metastable coordination polymers synthesized from solution and the solid state. CrystEngComm 2020. [DOI: 10.1039/c9ce01589b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Different Fe(ii) and Cd(ii) thiocyanate coordination compounds with unusual topology including isomeric modifications were synthesized with 4-picoline and investigated in regard to their thermodynamic relations.
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Affiliation(s)
- Tristan Neumann
- Institute of Inorganic Chemistry
- Kiel University
- 24118 Kiel
- Germany
| | - Gianpiero Gallo
- Max-Planck-Institute for Solid State Research
- 70569 Stuttgart
- Germany
- Department of Chemistry and Biology “A. Zambelli”
- University of Salerno
| | - Inke Jess
- Institute of Inorganic Chemistry
- Kiel University
- 24118 Kiel
- Germany
| | | | - Christian Näther
- Institute of Inorganic Chemistry
- Kiel University
- 24118 Kiel
- Germany
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Wellm C, Neumann T, Ceglarska M, Gallo G, Rams M, Dinnebier RE, Näther C. New isomeric Ni(NCS)2 coordination compounds: crystal structures, magnetic properties as well as ex situ and in situ investigations on their synthesis and transition behaviour. CrystEngComm 2020. [DOI: 10.1039/d0ce00181c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Some stable and metastable isomeric Ni(NCS)2 chain compounds were synthesized and structurally characterized and investigated for their transformation behavior and their magnetic properties using a variety of methods.
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Affiliation(s)
- Carsten Wellm
- Institute of Inorganic Chemistry
- Kiel University
- 24118 Kiel
- Germany
| | - Tristan Neumann
- Institute of Inorganic Chemistry
- Kiel University
- 24118 Kiel
- Germany
| | | | - Gianpiero Gallo
- Max-Planck-Institute for Solid State Research
- 70569 Stuttgart
- Germany
- Department of Chemistry and Biology “A. Zambelli”
- University of Salerno
| | - Michał Rams
- Institute of Physics
- Jagiellonian University
- 30348 Kraków
- Poland
| | | | - Christian Näther
- Institute of Inorganic Chemistry
- Kiel University
- 24118 Kiel
- Germany
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Neumann T, Jess I, Näther C. Crystal structure of pyridinium tetra-iso-thio-cyanato-dipyridine-chromium(III) pyridine monosolvate. Acta Crystallogr E Crystallogr Commun 2019; 75:1875-1879. [PMID: 31871749 PMCID: PMC6895946 DOI: 10.1107/s2056989019014488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 10/24/2019] [Indexed: 12/03/2022]
Abstract
In the crystal structure of the title compound, (C5H6N)[Cr(NCS)4(C5H5N)2]·C5H5N, the CrIII ions are octa-hedrally coordinated by four N-bonding thio-cyanate anions and two pyridine ligands into discrete negatively charged complexes, with the CrIII ion, as well as the two pyridine ligands, located on crystallographic mirror planes. The mean planes of the two pyridine ligands are rotated with respect to each other by 90°. Charge balance is achieved by one protonated pyridine mol-ecule that is hydrogen bonded to one additional pyridine solvent mol-ecule, with both located on crystallographic mirror planes and again rotated by exactly 90°. The pyridinium H atom was refined as disordered between both pyridine N atoms in a 70:30 ratio, leading to a linear N-H⋯N hydrogen bond. In the crystal, discrete complexes are linked by weak C-H⋯S hydrogen bonds into chains that are connected by additional C-H⋯S hydrogen bonding via the pyridinium cations and solvent mol-ecules into layers and finally into a three-dimensional network.
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Affiliation(s)
- Tristan Neumann
- Institut für Anorganische Chemie, Christian-Albrechts-Universität Kiel, Max-Eyth Strasse 2, D-24118 Kiel, Germany
| | - Inke Jess
- Institut für Anorganische Chemie, Christian-Albrechts-Universität Kiel, Max-Eyth Strasse 2, D-24118 Kiel, Germany
| | - Christian Näther
- Institut für Anorganische Chemie, Christian-Albrechts-Universität Kiel, Max-Eyth Strasse 2, D-24118 Kiel, Germany
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Wellm C, Näther C. Crystal structure, synthesis and thermal properties of bis-(aceto-nitrile-κ N)bis-(4-benzoyl-pyridine-κ N)bis-(iso-thio-cyanato-κ N)nickel(II). Acta Crystallogr E Crystallogr Commun 2019; 75:1685-1688. [PMID: 31709090 PMCID: PMC6829719 DOI: 10.1107/s2056989019013756] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 10/09/2019] [Indexed: 11/10/2022]
Abstract
In the crystal structure of the title com-pound, [Ni(NCS)2(CH3CN)2(C12H9NO)2] or Ni(NCS)2(4-benzoyl-pyridine)2(aceto-nitrile)2, the NiII ions are octa-hedrally coordinated by the N atoms of two thio-cyanate anions, two 4-benzoyl-pyridine ligands and two aceto-nitrile mol-ecules into discrete com-plexes that are located on centres of inversion. In the crystal, the discrete com-plexes are linked by centrosymmetric pairs of weak C-H⋯S hydrogen bonds into chains. Thermogravimetric measurements prove that, upon heating, the title com-plex loses the two aceto-nitrile ligands and transforms into a new crystalline modification of the chain com-pound [Ni(NCS)2(4-benzoyl-pyridine)2], which is different from that of the corresponding CoII, NiII and CdII coordination polymers reported in the literature. IR spectroscopic investigations indicate the presence of bridging thio-cyanate anions but the powder pattern cannot be indexed and, therefore, this structure is unknown.
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Affiliation(s)
- Carsten Wellm
- Institut für Anorganische Chemie, Universität Kiel, Max-Eyth. Strasse 2, 241128 Kiel, Germany
| | - Christian Näther
- Institut für Anorganische Chemie, Universität Kiel, Max-Eyth. Strasse 2, 241128 Kiel, Germany
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Synthesis and characterization of 1D and 2D cadmium(II)-2,2′-bipyridine-N,N′-dioxide coordination polymers bridged by pseudohalides. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.08.022] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Jochim A, Näther C. Formation of di- and polynuclear Mn(II) thiocyanate pyrazole complexes in solution and in the solid state. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2018. [DOI: 10.1515/znb-2018-0104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Reaction of Mn(NCS)2 with pyrazole leads to the formation of three compounds with the compositions Mn(NCS)2(pyrazole)4 (1), [Mn(NCS)2]2(pyrazole)6 (2) and Mn(NCS)2(pyrazole)2 (3). Compound 1, already reported in the literature, consists of discrete complexes, in which the Mn(II) cations are octahedrally coordinated by four pyrazole ligands and two terminally N-bonded thiocyanate anions. In compound 2 each of the two Mn(II) cations are coordinated octahedrally by three pyrazole ligands and one terminal as well as two bridging thiocyanate anions, which link the metal cations into dimers. In compound 3 also octahedrally coordinated Mn(II) cations are present but they are linked into chains via centrosymmetric pairs of μ-1,3-bridging thiocyanate anions. Upon heating compound 1 loses the pyrazole co-ligands stepwise and is transformed into the chain compound 3
via the dimer 2 that is formed as an intermediate. Magnetic measurements on compounds 2 and 3 reveal dominating antiferromagnetic interactions, as already observed for 1D Mn(NCS)2 coordination compounds with pyridine based co-ligands.
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Affiliation(s)
- Aleksej Jochim
- Institut für Anorganische Chemie , Christian-Albrechts-Universität zu Kiel, Max-Eyth-Straße 2 , 24118 Kiel , Germany
| | - Christian Näther
- Institut für Anorganische Chemie , Christian-Albrechts-Universität zu Kiel, Max-Eyth-Straße 2 , 24118 Kiel , Germany , Fax: +49-431-8801520
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31
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Jochim A, Gallo G, Dinnebier R, Näther C. Synthesis, crystal structure and properties of Cd(NCS)2 coordination compounds with two different Cd coordination modes. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2018. [DOI: 10.1515/znb-2018-0169] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Reaction of Cd(NCS)2 with 4-methoxypyridine leads to the formation of four new compounds, of which one crystallizes in two different polymorphs. In Cd(NCS)2(4-methoxypyridine)4·(4-methoxypyridine)2 (1) and Cd(NCS)2(4-methoxypyridine)4 (2-I and 2-II) discrete complexes are found, in which the Cd cations are octahedrally coordinated by four 4-methoxypyridine co-ligands and two terminally N-bonded thiocyanate anions. For the polymorphs 2-I and 2-II no single crystals are available and therefore, the corresponding Mn(II) compound (2-I-Mn) was prepared, which is isotypic to 2-I, as proven by a Rietveld refinement. The crystal structure of 2-II was solved and refined from XRPD data. In [Cd(NCS)2(4-methoxypyridine)2]
n
(3), the Cd cations are also octahedrally coordinated but linked into linear chains by pairs of thiocyanate anions with all ligands in trans-position. {[Cd(NCS)2]3(4-methoxypyridine)5}
n
(4) also consists of chains but two different Cd coordination modes are observed. Two of the three crystallographically independent Cd cations show an octahedral coordination with a trans- or cis-arrangement of the N and S atoms of the anionic ligands, whereas the third one is in a distorted square-pyramidal coordination, with cis-coordination of the thiocyanate N and S atoms. Measurements using simultaneous thermogravimetry and differential scanning calorimetry of 2-I and 2-II show different heating rate dependent mass steps, in which the co-ligands are removed. In some of the residues obtained after the respective TG steps compound 3 was detected but no phase pure samples could be obtained.
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Affiliation(s)
- Aleksej Jochim
- Institut für Anorganische Chemie, Christian-Albrechts-Universität zu Kiel , Max-Eyth-Straße 2 , 24118 Kiel , Germany
| | - Gianpiero Gallo
- Max Planck Institute for Solid State Research , Heisenbergstraße 1 , 70569 Stuttgart , Germany
| | - Robert Dinnebier
- Max Planck Institute for Solid State Research , Heisenbergstraße 1 , 70569 Stuttgart , Germany
| | - Christian Näther
- Institut für Anorganische Chemie, Christian-Albrechts-Universität zu Kiel , Max-Eyth-Straße 2 , 24118 Kiel , Germany , Fax: +49-431-8801520
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32
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Neumann T, Jess I, Pielnhofer F, Näther C. Selective Synthesis and Thermodynamic Relations of Polymorphic Co(NCS)
2
‐4‐Dimethylaminopyridine Coordination Compounds. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800741] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Tristan Neumann
- Institute of Inorganic Chemistry Christian‐Albrechts‐University of Kiel Max‐Eyth‐Strasse 2 24118 Kiel Germany
| | - Inke Jess
- Institute of Inorganic Chemistry Christian‐Albrechts‐University of Kiel Max‐Eyth‐Strasse 2 24118 Kiel Germany
| | - Florian Pielnhofer
- Max‐Planck‐Institut for Solid State Research Heisenbergstraße 1 70569 Stuttgart Germany
| | - Christian Näther
- Institute of Inorganic Chemistry Christian‐Albrechts‐University of Kiel Max‐Eyth‐Strasse 2 24118 Kiel Germany
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33
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Neumann T, Ceglarska M, Germann LS, Rams M, Dinnebier RE, Suckert S, Jess I, Näther C. Structures, Thermodynamic Relations, and Magnetism of Stable and Metastable Ni(NCS) 2 Coordination Polymers. Inorg Chem 2018; 57:3305-3314. [PMID: 29505252 DOI: 10.1021/acs.inorgchem.8b00092] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Reaction of Ni(NCS)2 with 4-aminopyridine in different solvents leads to the formation of compounds with the compositions Ni(NCS)2(4-aminopyridine)4 (1), Ni(NCS)2(4-aminopyridine)2(H2O)2 (2), [Ni(NCS)2(4-aminopyridine)3(MeCN)]·MeCN (3), and [Ni(NCS)2(4-aminopyridine)2] n (5-LT). Compounds 1, 2, and 3 form discrete complexes, with octahedral metal coordination. In 5-LT the Ni cations are linked by single thiocyanate anions into chains, which are further connected into layers by half of the 4-aminopyridine coligands. Upon heating, 1 transforms into an isomer of 5-LT with a 1D structure (5-HT), that on further heating forms a more condensed chain compound [Ni(NCS)2(4-aminopyridine)] n (6) that shows a very unusual chain topology. If 3 is heated, a further compound with the composition Ni(NCS)2(4-aminopyridine)3 (4) is formed, which presumably is a dimer and which on further heating transforms into 6 via 5-HT as intermediate. Further investigations reveal that 5-LT and 5-HT are related by enantiotropism, with 5-LT being the thermodynamic stable form at room-temperature. Magnetic and specific heat measurements reveal ferromagnetic exchange through thiocyanate bridges and magnetic ordering due to antiferromagnetic interchain interactions at 5.30(5) K and 8.2(2) K for 5-LT and 6, respectively. Consecutive metamagnetic transitions in the spin ladder compound 6 are due to dipolar interchain interactions. A convenient formula for susceptibility of the ferromagnetic Heisenberg chain of isotropic spins S = 1 is proposed, based on numerical DMRG calculations, and used to determine exchange constants.
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Affiliation(s)
- Tristan Neumann
- Institut für Anorganische Chemie, Christian-Albrechts-Universität zu Kiel , Max-Eyth-Straße 2 , 24118 Kiel , Germany
| | - Magdalena Ceglarska
- Institute of Physics, Jagiellonian University , Łojasiewicza 11 , 30348 Kraków , Poland
| | - Luzia S Germann
- Max Planck Institute for Solid State Research , Heisenbergstraße 1 , 70569 Stuttgart , Germany
| | - Michał Rams
- Institute of Physics, Jagiellonian University , Łojasiewicza 11 , 30348 Kraków , Poland
| | - Robert E Dinnebier
- Max Planck Institute for Solid State Research , Heisenbergstraße 1 , 70569 Stuttgart , Germany
| | - Stefan Suckert
- Institut für Anorganische Chemie, Christian-Albrechts-Universität zu Kiel , Max-Eyth-Straße 2 , 24118 Kiel , Germany
| | - Inke Jess
- Institut für Anorganische Chemie, Christian-Albrechts-Universität zu Kiel , Max-Eyth-Straße 2 , 24118 Kiel , Germany
| | - Christian Näther
- Institut für Anorganische Chemie, Christian-Albrechts-Universität zu Kiel , Max-Eyth-Straße 2 , 24118 Kiel , Germany
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34
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Synthesis, structural characterization and magnetic properties of Mn(II) isothiocyanate complexes based on pyridine-N-oxide derivative co-ligands. Polyhedron 2018. [DOI: 10.1016/j.poly.2017.11.022] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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35
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Neumann T, Jess I, dos Santos Cunha C, Terraschke H, Näther C. Cd(II) and Zn(II) thiocyanate coordination compounds with 3-ethylpyridine: synthesis, crystal structures and properties. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2018. [DOI: 10.1515/znb-2017-0186] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Reaction of Cd(NCS)2 and Zn(NCS)2 with 3-ethylpyridine leads to the formation of compounds of compositions M(NCS)2(3-ethylpyridine)4 (M=Cd, 1-Cd; Zn, 1-Zn) and M(NCS)2(3-ethylpyridine)2 (M=Cd, 2-Cd; Zn, 2-Zn). 1-Cd and 1-Zn are isotypic and form discrete complexes in which the metal cations are octahedrally coordinated by two trans-coordinating N-bonded thiocyanate anions and four 3-ethylpyridine co-ligands. In 2-Cd the cations are also octahedrally coordinated but linked into chains by pairs of μ-1,3-bridging anionic ligands. 2-Zn is built up of discrete complexes, in which the Zn cation is tetrahedrally coordinated by two N-bonded thiocyanate anions and two 3-ethylpyridine co-ligands. Compounds 1-Cd, 2-Cd and 2-Zn can be prepared in a pure state, whereas 1-Zn is unstable and transforms on storage into 2-Zn. If 1-Cd and 1-Zn are heated, a transformation into 2-Cd, respectively 2-Zn is observed. Luminescence measurements reveal that 1-Cd, 2-Cd and 2-Zn emit light in the blue spectral range with maxima at, respectively, 21724, 21654 and 22055 cm−1, assigned to ligand-based luminescence.
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Affiliation(s)
- Tristan Neumann
- Institut für Anorganische Chemie , Christian-Albrechts-Universität zu Kiel , Max-Eyth-Straße 2 , 24118 Kiel , Germany
| | - Inke Jess
- Institut für Anorganische Chemie , Christian-Albrechts-Universität zu Kiel , Max-Eyth-Straße 2 , 24118 Kiel , Germany
| | - Cesar dos Santos Cunha
- Institut für Anorganische Chemie , Christian-Albrechts-Universität zu Kiel , Max-Eyth-Straße 2 , 24118 Kiel , Germany
| | - Huayna Terraschke
- Institut für Anorganische Chemie , Christian-Albrechts-Universität zu Kiel , Max-Eyth-Straße 2 , 24118 Kiel , Germany
| | - Christian Näther
- Institut für Anorganische Chemie , Christian-Albrechts-Universität zu Kiel , Max-Eyth-Straße 2 , 24118 Kiel , Germany , Fax: +49-431-8801520
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36
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Di Santo A, Osiry H, Reguera E, Alborés P, Carbonio RE, Ben Altabef A, Gil DM. New coordination polymers based on 2-methylimidazole and transition metal nitroprusside containing building blocks: synthesis, structure and magnetic properties. NEW J CHEM 2018. [DOI: 10.1039/c7nj03585c] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this study, we report the synthesis, structural and magnetic properties of coordination polymers based on transition metal nitroprussides and 2-methylimidazole as ligands.
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Affiliation(s)
- A. Di Santo
- INQUINOA (CONICET-UNT). Instituto de Química Física, Facultad de Bioquímica, Química y Farmacia. Universidad Nacional de Tucumán
- T4000CAN San Miguel de Tucumán
- Argentina
| | - H. Osiry
- Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada, Unidad Legaria, Instituto Politécnico Nacional
- Mexico
| | - E. Reguera
- Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada, Unidad Legaria, Instituto Politécnico Nacional
- Mexico
| | - P. Alborés
- Departamento de Química Inorgánica, Analítica y Química Física, INQUIMAE, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellón 2, Ciudad Universitaria
- C1428EHA Buenos Aires
- Argentina
| | - R. E. Carbonio
- INFIQC (CONICET-UNC), Departamento de Fisicoquímica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Haya de la Torre esquina Medina Allende, Ciudad Universitaria
- X5000HUA Córdoba
- Argentina
| | - A. Ben Altabef
- INQUINOA (CONICET-UNT). Instituto de Química Física, Facultad de Bioquímica, Química y Farmacia. Universidad Nacional de Tucumán
- T4000CAN San Miguel de Tucumán
- Argentina
| | - Diego M. Gil
- INQUINOA (CONICET-UNT). Instituto de Química Física, Facultad de Bioquímica, Química y Farmacia. Universidad Nacional de Tucumán
- T4000CAN San Miguel de Tucumán
- Argentina
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37
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Neumann T, Jess I, Näther C. Crystal structures of bis-[4-(di-methyl-amino)-pyridinium] tetra-kis-(thio-cyanato-κ N)manganate(II) and tris-[4-(di-methyl-amino)-pyridinium] penta-kis(thio-cyanato-κ N)manganate(II). Acta Crystallogr E Crystallogr Commun 2018; 74:15-20. [PMID: 29416883 PMCID: PMC5778477 DOI: 10.1107/s2056989017017510] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2017] [Accepted: 12/06/2017] [Indexed: 12/04/2022]
Abstract
The crystal structures of the title salts, (C7H11N2)2[Mn(NCS)4] (1) and (C7H11N2)3[Mn(NCS)5] (2), consist of manganese(II) cations that are tetra-hedrally (1) or trigonal-bipyramidally (2) coordinated to four or five terminal N-bonded thio-cyanate ligands, respectively, into discrete anionic complexes. The negative charge is compensated by two (1) or three (2) 4-(di-methyl-amino)-pyridinium cations, which are protonated at the pyridine N atom. The asymmetric unit of compound 1 consists of one anionic complex and two 4-(di-methyl-amino)-pyridinium cations, whereas that of compound 2 consists of two anionic complexes and six 4-(di-methyl-amino)-pyridinium cations, all of them located in general positions. These complexes are linked by N-H⋯S, C-H⋯S and C-H⋯N hydrogen-bonding inter-actions between the 4-(di-methyl-amino)-pyridinium cations and the thio-cyanate ligands into three-dimensional network structures.
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Affiliation(s)
- Tristan Neumann
- Institut für Anorganische Chemie, Christian-Albrechts-Universität Kiel, Max-Eyth Strasse 2, D-24118 Kiel, Germany
| | - Inke Jess
- Institut für Anorganische Chemie, Christian-Albrechts-Universität Kiel, Max-Eyth Strasse 2, D-24118 Kiel, Germany
| | - Christian Näther
- Institut für Anorganische Chemie, Christian-Albrechts-Universität Kiel, Max-Eyth Strasse 2, D-24118 Kiel, Germany
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38
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Louka FR, Massoud SS, Haq TK, Koikawa M, Mikuriya M, Omote M, Fischer RC, Mautner FA. Synthesis, structural characterization and magnetic properties of one-dimensional Cu(II)-azido coordination polymers. Polyhedron 2017. [DOI: 10.1016/j.poly.2017.09.035] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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39
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Mautner FA, Berger C, Fischer RC, Massoud SS, Vicente R. Synthesis, structural characterization and magnetic properties of polymeric azido Mn(II) complexes based on methyl-pyridine- N -oxide co-ligands. Polyhedron 2017. [DOI: 10.1016/j.poly.2017.06.025] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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40
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Pyridyl and triazole ligands directing the assembling of zinc(II) into coordination polymers with different dimensionality through azides. Polyhedron 2017. [DOI: 10.1016/j.poly.2017.04.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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41
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Suckert S, Rams M, Rams MM, Näther C. Reversible and Topotactic Solvent Removal in a Magnetic Ni(NCS)2 Coordination Polymer. Inorg Chem 2017; 56:8007-8017. [PMID: 28657300 DOI: 10.1021/acs.inorgchem.7b00721] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Stefan Suckert
- Institut
für Anorganische Chemie, Christian-Albrechts-Universität zu Kiel, Max-Eyth-Straße
2, 24118 Kiel, Germany
| | - Michał Rams
- Institute
of Physics, Jagiellonian University, Łojasiewicza 11, 30-348 Kraków, Poland
| | - Marek M. Rams
- Institute
of Physics, Jagiellonian University, Łojasiewicza 11, 30-348 Kraków, Poland
| | - Christian Näther
- Institut
für Anorganische Chemie, Christian-Albrechts-Universität zu Kiel, Max-Eyth-Straße
2, 24118 Kiel, Germany
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42
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Suckert S, Terraschke H, Reinsch H, Näther C. Synthesis, crystal structures, thermal, magnetic and luminescence properties of Mn(II) and Cd(II) thiocyanate coordination compounds with 4-(Boc-amino)pyridine as co-ligand. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2017.03.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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43
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Suckert S, Werner J, Jess I, Näther C. Crystal structure of bis-(4-benzoyl-pyridine-κ N)bis-(methanol-κ O)bis-(thio-cyanato-κ N)cobalt(II). Acta Crystallogr E Crystallogr Commun 2017; 73:616-619. [PMID: 28435733 PMCID: PMC5382634 DOI: 10.1107/s2056989017004765] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2017] [Accepted: 03/27/2017] [Indexed: 11/26/2022]
Abstract
The crystal structure of the title compound, [Co(NCS)2(C12H9NO)2(CH3OH)2], consists of cobalt(II) cations that are octa-hedrally coordinated by two N-terminal bonding thio-cyanato anions, two methanol mol-ecules and two 4-benzoyl-pyridine ligands into discrete complexes that are located on centres of inversion. These complexes are further linked by O-H⋯O hydrogen bonding between the hy-droxy H atom of the methanol ligand and the carbonyl O atom of the 4-benzoyl-pyridine ligand of a neighboring complex into layers parallel to (101). No pronounced inter-molecular inter-actions are observed between these layers.
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Affiliation(s)
- Stefan Suckert
- Institut für Anorganische Chemie, Christian-Albrechts-Universität Kiel, Max-Eyth Str. 2, D-24118 Kiel, Germany
| | - Julia Werner
- Institut für Anorganische Chemie, Christian-Albrechts-Universität Kiel, Max-Eyth Str. 2, D-24118 Kiel, Germany
| | - Inke Jess
- Institut für Anorganische Chemie, Christian-Albrechts-Universität Kiel, Max-Eyth Str. 2, D-24118 Kiel, Germany
| | - Christian Näther
- Institut für Anorganische Chemie, Christian-Albrechts-Universität Kiel, Max-Eyth Str. 2, D-24118 Kiel, Germany
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Näther C, Jess I, Germann LS, Dinnebier RE, Braun M, Terraschke H. CdX
2
Coordination Polymers with 2‐Chloropyrazine and 2‐Methylpyrazine: Similar Ligands – Similar Structures – Different Reactivity. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700031] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Christian Näther
- Institut für Anorganische Chemie Christian‐Albrechts‐Universität zu Kiel Max‐Eyth‐Straße 2 24118 Kiel Germany
| | - Inke Jess
- Institut für Anorganische Chemie Christian‐Albrechts‐Universität zu Kiel Max‐Eyth‐Straße 2 24118 Kiel Germany
| | - Luzia S. Germann
- Max Planck Institute for Solid State Research Heisenbergstraße 1 70569 Stuttgart Germany
| | - Robert E. Dinnebier
- Max Planck Institute for Solid State Research Heisenbergstraße 1 70569 Stuttgart Germany
| | - Michael Braun
- Institut für Anorganische Chemie Christian‐Albrechts‐Universität zu Kiel Max‐Eyth‐Straße 2 24118 Kiel Germany
| | - Huayna Terraschke
- Institut für Anorganische Chemie Christian‐Albrechts‐Universität zu Kiel Max‐Eyth‐Straße 2 24118 Kiel Germany
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45
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Suckert S, Werner J, Jess I, Näther C. Crystal structure of bis-(aceto-nitrile-κ N)bis-(4-benzoyl-pyridine-κ N)bis-(thio-cyanato-κ N)cobalt(II). Acta Crystallogr E Crystallogr Commun 2017; 73:365-368. [PMID: 28316810 PMCID: PMC5347055 DOI: 10.1107/s2056989017002201] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Accepted: 02/09/2017] [Indexed: 11/29/2022]
Abstract
The crystal structure of the title compound, [Co(NCS)2(C2H3N)2(C12H9NO)2], consists of cobalt(II) cations that are octa-hedrally coordinated by the N atoms of two terminal thio-cyanate anions, two aceto-nitrile mol-ecules and two 4-benzoyl-pyridine ligands. The discrete complexes are located on centres of inversion. They are connected by weak inter-molecular C-H⋯O and C-H⋯S hydrogen-bonding inter-actions between one of the pyridine H atoms and the carbonyl O atom, and between one of the methyl H atoms of the aceto-nitrile mol-ecule and the thio-cyanate S atoms into layers parallel to (101). No pronounced inter-molecular inter-actions are observed between these layers.
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Affiliation(s)
- Stefan Suckert
- Institut für Anorganische Chemie, Christian-Albrechts-Universität Kiel, Max-Eyth Strasse 2, D-24118 Kiel, Germany
| | - Julia Werner
- Institut für Anorganische Chemie, Christian-Albrechts-Universität Kiel, Max-Eyth Strasse 2, D-24118 Kiel, Germany
| | - Inke Jess
- Institut für Anorganische Chemie, Christian-Albrechts-Universität Kiel, Max-Eyth Strasse 2, D-24118 Kiel, Germany
| | - Christian Näther
- Institut für Anorganische Chemie, Christian-Albrechts-Universität Kiel, Max-Eyth Strasse 2, D-24118 Kiel, Germany
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46
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Structural characterization of metal(II) thiocyanato complexes derived from bis(2-(H-pyrazol-1-yl)ethyl)amine. Polyhedron 2017. [DOI: 10.1016/j.poly.2017.01.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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47
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Rams M, Tomkowicz Z, Böhme M, Plass W, Suckert S, Werner J, Jess I, Näther C. Influence of metal coordination and co-ligands on the magnetic properties of 1D Co(NCS)2 coordination polymers. Phys Chem Chem Phys 2017; 19:3232-3243. [DOI: 10.1039/c6cp08193b] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two 1D Co(NCS)2 coordination polymers were synthesized and their magnetic properties were investigated by susceptibility and specific heat measurements as well as DFT and ab initio calculations.
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Affiliation(s)
- Michał Rams
- Institute of Physics
- Jagiellonian University
- Łojasiewicza 11
- 30-348 Kraków
- Poland
| | - Zbigniew Tomkowicz
- Institute of Physics
- Jagiellonian University
- Łojasiewicza 11
- 30-348 Kraków
- Poland
| | - Michael Böhme
- Institut für Anorganische und Analytische Chemie
- Universität Jena
- Humboldtstr. 8
- 07743 Jena
- Germany
| | - Winfried Plass
- Institut für Anorganische und Analytische Chemie
- Universität Jena
- Humboldtstr. 8
- 07743 Jena
- Germany
| | - Stefan Suckert
- Institut für Anorganische Chemie
- Christian-Albrechts-Universität zu Kiel
- Max-Eyth-Straße 2
- 24118 Kiel
- Germany
| | - Julia Werner
- Institut für Anorganische Chemie
- Christian-Albrechts-Universität zu Kiel
- Max-Eyth-Straße 2
- 24118 Kiel
- Germany
| | - Inke Jess
- Institut für Anorganische Chemie
- Christian-Albrechts-Universität zu Kiel
- Max-Eyth-Straße 2
- 24118 Kiel
- Germany
| | - Christian Näther
- Institut für Anorganische Chemie
- Christian-Albrechts-Universität zu Kiel
- Max-Eyth-Straße 2
- 24118 Kiel
- Germany
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Suckert S, Jess I, Näther C. Crystal structure of bis-(3,5-di-methyl-pyridine-κ N)bis-(methanol-κ O)bis-(thio-cyanato-κ N)cobalt(II). Acta Crystallogr E Crystallogr Commun 2016; 72:1824-1826. [PMID: 27980840 PMCID: PMC5137618 DOI: 10.1107/s2056989016018326] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Accepted: 11/15/2016] [Indexed: 11/10/2022]
Abstract
The asymmetric unit of the title complex, [Co(NCS)2(C7H9N)2(CH3OH)2], comprises of one CoII cation located on a centre of inversion, one thio-cyanate ligand, one methanol ligand and one 3,5-di-methyl-pyridine ligand. The CoII cation is octa-hedrally coordinated by two terminal N-bonding thio-cyanate anions, two methanol mol-ecules and two 3,5-di-methyl-pyridine ligands into a discrete complex. The complex mol-ecules are linked by inter-molecular O-H⋯S hydrogen bonding into chains that elongate in the direction parallel to the b axis.
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Affiliation(s)
- Stefan Suckert
- Institut für Anorganische Chemie, Christian-Albrechts-Universität Kiel, Max-Eyth Strasse 2, D-24118 Kiel, Germany
| | - Inke Jess
- Institut für Anorganische Chemie, Christian-Albrechts-Universität Kiel, Max-Eyth Strasse 2, D-24118 Kiel, Germany
| | - Christian Näther
- Institut für Anorganische Chemie, Christian-Albrechts-Universität Kiel, Max-Eyth Strasse 2, D-24118 Kiel, Germany
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Suckert S, Jess I, Näther C. Crystal structure of di-aqua-bis-(2-chloro-pyridine-κ N)bis-(thio-cyanato-κ N)nickel(II). Acta Crystallogr E Crystallogr Commun 2016; 72:1492-1494. [PMID: 27746948 PMCID: PMC5050783 DOI: 10.1107/s2056989016015218] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Accepted: 09/27/2016] [Indexed: 12/01/2022]
Abstract
The asymmetric unit of the title compound, [Ni(NCS)2(C5H4ClN)2(H2O)2], consists of one nickel(II) cation that is located on a center of inversion and one thio-cyanate anion, one water mol-ecule and one 2-chloro-pyridine ligand all occupying general positions. The NiII cation is octa-hedrally coordinated by two terminal N-bound thio-cyanato ligands, two aqua ligands and two N-bound 2-chloro-pyridine ligands into discrete complexes. Individual complexes are linked by inter-molecular O-H⋯S and O-H⋯Cl hydrogen-bonding inter-actions into a layered network extending parallel to the bc plane. Weak inter-actions of types C-H⋯S and C-H⋯Cl consolidate the crystal packing.
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Affiliation(s)
- Stefan Suckert
- Institut für Anorganische Chemie, Christian-Albrechts-Universität Kiel, Max-Eyth Str. 2, D-24118 Kiel, Germany
| | - Inke Jess
- Institut für Anorganische Chemie, Christian-Albrechts-Universität Kiel, Max-Eyth Str. 2, D-24118 Kiel, Germany
| | - Christian Näther
- Institut für Anorganische Chemie, Christian-Albrechts-Universität Kiel, Max-Eyth Str. 2, D-24118 Kiel, Germany
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50
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Neumann T, Jess I, Näther C. Crystal structure of aqua-tris-(isonicotinamide-κ N)bis-(thio-cyanato-κ N)cobalt(II) 2.5-hydrate. Acta Crystallogr E Crystallogr Commun 2016; 72:1263-1266. [PMID: 27920913 PMCID: PMC5120703 DOI: 10.1107/s2056989016012470] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Accepted: 08/02/2016] [Indexed: 03/27/2024]
Abstract
The asymmetric unit of the title compound, [Co(NCS)2(C6H6N2O)3(H2O)]·2.5H2O, comprises one CoII cation, three isonicotinamide ligands, two thio-cyanate anions, one aqua ligand and two water solvent mol-ecules in general positions, as well as one water solvent mol-ecule that is located on a twofold rotation axis. The CoII cations are octa-hedrally coordinated by two terminally N-bonded thio-cyanate anions, one water mol-ecule and three isonicotinamide ligands, each coordinating via the pyridine N atom. The discrete complexes are linked by inter-molecular O-H⋯O, N-H⋯O and N-H⋯S hydrogen bonding into a three-dimensional network that contains cavities in which the solvent water mol-ecules are located. The latter are linked by further O-H⋯O hydrogen bonds to the network. There are additional short contacts present in the crystal, indicative of weak C-H⋯S, C-H⋯O and C-H⋯N inter-actions.
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Affiliation(s)
- Tristan Neumann
- Institut für Anorganische Chemie, Christian-Albrechts-Universität Kiel, Max-Eyth Strasse 2, D-24118 Kiel, Germany
| | - Inke Jess
- Institut für Anorganische Chemie, Christian-Albrechts-Universität Kiel, Max-Eyth Strasse 2, D-24118 Kiel, Germany
| | - Christian Näther
- Institut für Anorganische Chemie, Christian-Albrechts-Universität Kiel, Max-Eyth Strasse 2, D-24118 Kiel, Germany
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