Zeitschrift für Naturforschung B最新文献

{"title":"Crystal structure and fluorescence-based sensor properties of a Metal-Organic Framework","authors":"Jing-Lin Chang, Jun-Feng Wu, Jia-Wei Zhang, Kai Cui, Zhi-Qiang Liu","doi":"10.1515/znb-2023-0077","DOIUrl":"https://doi.org/10.1515/znb-2023-0077","url":null,"abstract":"A Metal-Organic Framework (MOF) based on a tricarboxylic acid ligand (H<jats:sub>3</jats:sub>L = biphenyl-2,4′,5-tricarboxylic acid), namely [Cd<jats:sub>3</jats:sub>(L)<jats:sub>2</jats:sub>(H<jats:sub>2</jats:sub>O)<jats:sub>4</jats:sub>] (1), had been prepared and characterized by elemental analysis, IR spectroscopy, powder X-ray diffraction (PXRD), thermogravimetric analyses (TGA), and single-crystal X-ray diffraction. Fluorescence studies showed that 1 has high quenching efficiency for testing acetone and Fe<jats:sup>3+</jats:sup> ions in aqueous systems. Therefore, it can be used as a new type of fluorescence probe to detect solvent molecules and metal ions in water.","PeriodicalId":23831,"journal":{"name":"Zeitschrift für Naturforschung B","volume":" 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138493049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis and crystal structure of the zinc borate Zn6B22O39·H2O","authors":"Raimund Ziegler, Hubert Huppertz","doi":"10.1515/znb-2023-0089","DOIUrl":"https://doi.org/10.1515/znb-2023-0089","url":null,"abstract":"The synthesis and crystal structure of Zn<jats:sub>6</jats:sub>B<jats:sub>22</jats:sub>O<jats:sub>39</jats:sub>·H<jats:sub>2</jats:sub>O are described. This new zinc borate was synthesized at 7 GPa and 1523 K in a multianvil device. It crystallizes in the orthorhombic space group <jats:italic>Pnma</jats:italic> (no. 62) with the lattice parameters <jats:italic>a</jats:italic> = 818.77(4), <jats:italic>b</jats:italic> = 768.42(3), <jats:italic>c</jats:italic> = 1744.82(9) pm, <jats:italic>V</jats:italic> = 1.09777(9) nm<jats:sup>3</jats:sup>, and two formula units per unit cell (<jats:italic>Z</jats:italic> = 2). The structure is closely related to those of <jats:italic>M</jats:italic> <jats:sub>6</jats:sub>B<jats:sub>22</jats:sub>O<jats:sub>39</jats:sub>·H<jats:sub>2</jats:sub>O (<jats:italic>M</jats:italic> = Fe, Co, Ni, Cd) and features non-planar (BO<jats:sub>3</jats:sub>) units as demonstrated by single-crystal and powder X-ray diffraction techniques.","PeriodicalId":23831,"journal":{"name":"Zeitschrift für Naturforschung B","volume":"27 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138496447","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The crystal and molecular structure of 1-ferrocenyl-3,3-<i>bis</i>(methylthio)prop-2-en-1-one","authors":"Vedaant Kumar, Kathleen L. May, Alan J. Lough, Robert A. Gossage","doi":"10.1515/znb-2023-0079","DOIUrl":"https://doi.org/10.1515/znb-2023-0079","url":null,"abstract":"Abstract The title compound 1-ferrocenyl-3,3- bis (methylthio)prop-2-en-1-one ( 1 ), a key intermediate in the synthesis of ferrocene-containing heterocycles, has been characterized by single-crystal X-ray diffraction. Compound 1 crystallizes in the monoclinic space group P 2 1 / c with 8 molecules in the unit cell. Unit cell parameters are 12.8159(10), 10.8121(9), and 20.8411(16) Å for a , b and c , respectively with β = 98.985(4)°. There are two distinct molecules in the asymmetric unit ( A and B ). Both molecules display a nearly eclipsed conformation with respect to the individual intramolecular cyclopentadienyl units in addition to close intramolecular contacts between the carbonyl O atom and one S atom of the bis -methylthiol functionality. Close intermolecular contacts involving A and B are noted with respect to S⋯H interactions between a thiol-S and the substituted Cp group in addition to C=O∙∙∙HC= interactions with the ene -moiety and a H atom located on one of the thiomethyl groups.","PeriodicalId":23831,"journal":{"name":"Zeitschrift für Naturforschung B","volume":"12 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136227593","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis, structures and photophysical properties of two new Cu(I) complexes","authors":"Xiaojuan Sun, Zhiqiang Wang","doi":"10.1515/znb-2023-0046","DOIUrl":"https://doi.org/10.1515/znb-2023-0046","url":null,"abstract":"Abstract Two cationic heteroleptic four-coordinate Cu(I) complexes were successfully synthesized and characterized by 1 H NMR, 13 C NMR, 31 P NMR spectroscopy and mass spectrometry. The crystal structures of the complexes have been determined by single-crystal X-ray diffraction. UV/Visible absorption spectra of these complexes show ligand-centered π - π * and charge transfer transitions. In the solid state the complexes show intense emissions with microsecond-scale lifetime and relatively high efficiency at room temperature. The photophysical behavior at T = 298 and 77 K indicates that the emissions of these complexes are thermally activated delayed fluorescence mixed with phosphorescence.","PeriodicalId":23831,"journal":{"name":"Zeitschrift für Naturforschung B","volume":" 47","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135340328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Heat capacity of sodium and potassium hexafluorophosphate","authors":"Konrad Burkmann, Bastian Hansel, Franziska Habermann, Bianca Störr, Martin Bertau, Florian Mertens","doi":"10.1515/znb-2023-0084","DOIUrl":"https://doi.org/10.1515/znb-2023-0084","url":null,"abstract":"Abstract The heat capacities of NaPF 6 and KPF 6 were measured in a broad temperature range using differential scanning calorimetry. The suitability of applying a modified Neumann Kopp rule to calculate the heat capacity of “PF 6 ” was evaluated in order to obtain a general method to predict the heat capacities of other hexafluorophosphates.","PeriodicalId":23831,"journal":{"name":"Zeitschrift für Naturforschung B","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136019549","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Zur Kenntnis ternärer Oxoarsenate(III) dreiwertiger Lanthanoide: Synthese und Charakterisierung von <i>Ln</i>AsO₃- und <i>Ln</i> ₂As₄O₉-Vertretern mit <i>Ln</i> = La und Ce sowie <i>Ln</i> = Pr, Nd, Sm–Gd","authors":"Ralf J. C. Locke, Florian Ledderboge, Thomas Schleid","doi":"10.1515/znb-2023-0069","DOIUrl":"https://doi.org/10.1515/znb-2023-0069","url":null,"abstract":"Abstract The title compounds have been prepared from the elemental lanthanoids and arsenic sesquioxide in 1:1 and 2:3 molar ratios in the presence of a cesium-halide flux at temperatures near 1000 °C generating elemental arsenic as the by-product. With the preparation of B -type La[AsO 3 ] crystallizing in the monoclinic space group P 2 1 / c with the lattice parameters a = 904.03(8), b = 789.96(7), c = 837.49(7) pm and β = 103.354(3)°, both A - and B -type Ln [AsO 3 ] representatives are now available for lanthanum and cerium. The crystal structure consists of two crystallographically distinct Ln 3+ cations with eight- or ninefold coordination by O 2− anions. The Ln 3+ cations are arranged in layers of ( Ln 1) 3+ and corrugated bilayers of ( Ln 2) 3+ cations in the (100) plane. The two different As 3+ cations appear in [AsO 3 ] 3− units, which differ mainly in their environment of Ln 3+ cations. The successful synthesis of the compounds Ln 2 As 4 O 9 ( Ln = Pr, Nd, Eu and Gd) reported here on the one hand closes the structural gap between cerium and neodymium, and on the other hand also extends the spectrum of ternary oxoarsenates(III) of lanthanoids to gadolinium, with the neodymium compound for the first time at standard temperature. The crystals of the Ln 2 As 4 O 9 compounds are triclinic (space group: <m:math xmlns:m=\"http://www.w3.org/1998/Math/MathML\"> <m:mrow> <m:mi>P</m:mi> <m:mover accent=\"true\"> <m:mn>1</m:mn> <m:mo>‾</m:mo> </m:mover> </m:mrow> </m:math> $Pbar{1}$ ) with lattice parameters nicely reflecting the lanthanoid contraction from a = 690.61(5), b = 768.95(6), c = 959.72(8) pm, α = 96.927(3), β = 103.812(3), γ = 104.441(3)° for Pr 2 As 4 O 9 to a = 676.12(5), b = 751.58(6), c = 951.57(8) pm, α = 96.462(3), β = 103.678(3), γ = 104.409(3)° for Gd 2 As 4 O 9 with two crystallographically independent lanthanoid(III) positions. The oxidic environments on these sites show the shape of square antiprisms with significant distortions, but ( Ln 2) 3+ has a ninth oxygen contact in a capped antiprism. The linkage of the polyhedra creates layers in the ab plane, which are separated by the complex anions of arsenic. The oxoarsenate(III) units [AsO 3 ] 3− are linked by sharing oxygen corners to form both dinuclear [As 2 O 5 ] 4− and cyclic tetranuclear [As 4 O 8 ] 4− complex anions, which is why the compounds can also be represented with their structured molecular formula Ln 4 [As 2 O 5 ] 2 [As 4 O 8 ]. The free electron pairs of the arsenic(III) cations point into channels, which are built up in the crystal structure along [010].","PeriodicalId":23831,"journal":{"name":"Zeitschrift für Naturforschung B","volume":"286 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135094395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A switch from ferro- to antiferromagnetic ordering in the solid solutions CeAuGe_1−<i>x</i>Sn_<i>x</i>","authors":"Maximilian Kai Reimann, Wilma Pröbsting, Aylin Koldemir, Jana Palms, Rainer Pöttgen","doi":"10.1515/znb-2023-0073","DOIUrl":"https://doi.org/10.1515/znb-2023-0073","url":null,"abstract":"Abstract CeAuGe and CeAuSn (both NdPtSb type, space group P 6 3 mc ) form a complete solid solution CeAuGe 1− x Sn x with Vegard-type behavior of the cell volume. Samples with steps of x = 0.1 were synthesized from the pure elements by arc-melting. The structure of CeAuGe 0.13(2) Sn 0.87(2) was refined from single-crystal X-ray diffractometer data: a = 469.10(6), c = 773.90(10) pm, wR 2 = 0.0359, 251 F 2 values and 12 variables. The induced structural disorder caused by the Ge/Sn mixing affects the magnetic ground state of the cerium ions. From the germanium-rich side, the Curie temperature of CeAuGe (10.0 K) decreases towards CeAuGe 0.6 Sn 0.4 , while the Néel temperature of CeAuSn (4.4 K) decreases at the tin-rich side toward CeAuGe 0.4 Sn 0.6 . The switch of the magnetic ground state occurs approximately around the Ge/Sn ratio of 1:1. 119 Sn Mössbauer spectra of CeAuGe 0.1 Sn 0.9 and CeAuGe 0.7 Sn 0.3 confirm the presence of single crystallographic tin sites in both cases, and the isomer shifts are comparable to that of pure CeAuSn, indicating similar electron density distribution at the tin nuclei.","PeriodicalId":23831,"journal":{"name":"Zeitschrift für Naturforschung B","volume":"174 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135548133","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Crystal structures and luminescence properties of Li₆ <i>M</i>N₄:Ce³⁺ (<i>M</i> = Mo, W)","authors":"Martin Klotz, Markus Seibald, Dominik Baumann, Klaus Wurst, Gunter Heymann, Hubert Huppertz","doi":"10.1515/znb-2023-0057","DOIUrl":"https://doi.org/10.1515/znb-2023-0057","url":null,"abstract":"Abstract The compounds Li 6 MoN 4 and Li 6 WN 4 were prepared from the reactants M ( M = Mo, W) and Li 3 N in a radiofrequency furnace at 1000 °C. The lithonitridometallates crystallize in the tetragonal system with the lattice parameters: a = 6.6844(1), c = 4.9294(1) Å for Li 6 WN 4 based on single-crystal X-ray diffraction data and a = 6.6611(3), c = 4.9338(3) Å for Li 6 MoN 4 taken from powder X-ray diffraction data. Colorless to slightly reddish single-crystals of the tungsten compound were isolated and the crystal structure was refined in the space group P 4 2 / nmc (no. 137) with Z = 2 and the powder X-ray data of the molybdenum compound were analyzed by a Rietveld refinement. Both structures belong to the Li 6 [ZnO 4 ] type published by Hoppe et al. in 1987 (Untenecker H., Hoppe R. Z. Anorg. Allg. Chem. 1987, 551 , 147–150) and could be doped with Ce 3+ for the first time. The investigated compounds show a reddish color impression upon UV to blue irradiation and exhibit a broad emission band with a maximum at λ max = 693 nm (fwhm 97 nm) for Li 6 MoN 4 and at λ max = 653 nm (fwhm 133 nm) for Li 6 WN 4 .","PeriodicalId":23831,"journal":{"name":"Zeitschrift für Naturforschung B","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136237716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A zinc coordination compound showing green photoluminescence","authors":"Yu-Shu Zhu, Cui-Er Deng, Xue-Chun Zhang, Kun-Lin Huang, Xi Liu","doi":"10.1515/znb-2023-0063","DOIUrl":"https://doi.org/10.1515/znb-2023-0063","url":null,"abstract":"Abstract A novel three-dimensional coordination compound has been solvothermally synthesized based on a tetracarboxylate ligand H 4 L (H 4 L = 1,3,6,8-tetrakis(4-carboxylphenyl)pyrene), Zn 2 L(H 2 O) 2 ·2DEF ( 1 ) (DEF = N , N ′-diethylformamide). Each Zn ion is coordinated by four carboxylate oxygen atoms from four L 4− ligands and one oxygen atom from a water molecule to provide a distorted square-pyramidal geometry. Pairs of adjacent Zn cations are bridged by four carboxylate groups of four different L 4− ligands to generate a paddle-wheel [Zn 2 (COO) 4 (H 2 O) 2 ] secondary building unit (SBU). Each SUB is further linked to four L 4− ligands to give a three-dimensional framework with cds-type (CdSO 4 -type) topology. The crystal structure has been determined via single-crystal X-ray diffraction, and the compound was characterized by elemental and thermal analysis, infrared spectroscopy, powder X-ray diffraction, and solid-state photoluminescence measurements.","PeriodicalId":23831,"journal":{"name":"Zeitschrift für Naturforschung B","volume":"151 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136263888","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"tert-Butyldichlorophosphane: crystal structure and its reactivity towards supersilyl sodium","authors":"L. Fink, Marcel Bamberg, E. Alig, H. Lerner","doi":"10.1515/znb-2023-0041","DOIUrl":"https://doi.org/10.1515/znb-2023-0041","url":null,"abstract":"Abstract Crystals of tBuPCl2 were obtained by a short-path sublimation at 80 °C/0.150 mbar. The structure determination of tBuPCl2 was based on X-ray powder data. The measurements were carried out in a temperature range from 173 K to r. t. At 173 K the X-ray powder pattern has been assigned to an orthorhombic phase, and that at 213 K to a plastic-crystalline, cubic phase. We further investigated the reactivity of tBuPCl2 towards Na(thf)2[SitBu3] at ambient temperature. The reaction of tBuPCl2 with two equivalents of Na(thf)2[SitBu3] gave together with tBu3SiCl the yet unknown phosphanediide Na2[PtBu] by a chlorine-sodium exchange. The identity of Na2[PtBu] was confirmed by 31P NMR spectroscopy and its existence was unambiguously demonstrated by its protonation with methanol and the consequent formation of tBuPH2.","PeriodicalId":23831,"journal":{"name":"Zeitschrift für Naturforschung B","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77886191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}