Johannes G. Volpini, Gregor Hoerder, Markus Seibald, Dominik Baumann, H. Huppertz
Abstract The new quaternary lithogallate Sr2LiGaO4 was prepared by conventional solid-state synthesis in a welded tantalum ampoule at T = 850 °C. Single-crystal X-ray diffraction was used to elucidate the crystal structure of the compound, which crystallizes in the orthorhombic space group Pnma (no. 62) with the lattice parameters a = 11.2434(4), b = 5.6879(2), and c = 6.6983(2) Å. The phase composition of the powder sample was determined by Rietveld refinement based on X-ray diffraction data. The crystal structure is composed of layers of corner-sharing LiO4 and GaO4 tetrahedra with alternating orientation parallel to the crystallographic bc plane. The eightfold coordinated strontium atoms are arranged in a zigzag manner between the layers forming two types of double-capped trigonal prismatic SrO8 units with common faces. The crystal structure of Sr2LiGaO4 is isotypic to that of the lithoaluminate derivate Sr1.85Ba0.15LiAlO4.
摘要:在T = 850 °C的焊接钽安瓿中，采用常规固相合成法制备了新型四元没食子酸盐Sr2LiGaO4。单晶x射线衍射分析了该化合物的晶体结构，该化合物在正交空间群Pnma (no。晶格参数a = 11.2434(4)， b = 5.6879(2)， c = 6.6983(2) Å。基于x射线衍射数据，采用Rietveld精细化法确定了粉末样品的相组成。晶体结构是由平行于晶体学bc面交替取向的共角LiO4和高四四面体层组成。八重配位锶原子以之字形排列在层之间，形成两种具有共同面的双帽三角形棱镜SrO8单元。Sr2LiGaO4的晶体结构与石铝酸盐衍生物Sr1.85Ba0.15LiAlO4的晶体结构是同型的。
{"title":"Crystal structure of the quaternary lithogallate Sr2LiGaO4","authors":"Johannes G. Volpini, Gregor Hoerder, Markus Seibald, Dominik Baumann, H. Huppertz","doi":"10.1515/znb-2023-0043","DOIUrl":"https://doi.org/10.1515/znb-2023-0043","url":null,"abstract":"Abstract The new quaternary lithogallate Sr2LiGaO4 was prepared by conventional solid-state synthesis in a welded tantalum ampoule at T = 850 °C. Single-crystal X-ray diffraction was used to elucidate the crystal structure of the compound, which crystallizes in the orthorhombic space group Pnma (no. 62) with the lattice parameters a = 11.2434(4), b = 5.6879(2), and c = 6.6983(2) Å. The phase composition of the powder sample was determined by Rietveld refinement based on X-ray diffraction data. The crystal structure is composed of layers of corner-sharing LiO4 and GaO4 tetrahedra with alternating orientation parallel to the crystallographic bc plane. The eightfold coordinated strontium atoms are arranged in a zigzag manner between the layers forming two types of double-capped trigonal prismatic SrO8 units with common faces. The crystal structure of Sr2LiGaO4 is isotypic to that of the lithoaluminate derivate Sr1.85Ba0.15LiAlO4.","PeriodicalId":23831,"journal":{"name":"Zeitschrift für Naturforschung B","volume":"1 1","pages":"477 - 483"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89973438","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}
Abstract The reactions of copper, silver and palladium salts with the homochiral ligands 3,3′-bis[( S , S )-4-isopropyl-2-oxazolyl]-4-chloro-2,2′-bipyridine (L 1 ), 3,3′-bis[( S , S )-4-benzyl-2-oxazolyl]-4-chloro-2,2′-bipyridine (L 2 ) and 2-[( S )-4-isopropyl-2-oxazolyl]quinoline (L 3 ) yield three new chiral complexes: [Cu(L 1 )Br 2 ] ( 1 ), [Ag(L 2 )(CH 3 CN)]·(BF 4 )·(CH 3 OH) 0.17 ·(H 2 O) 0.08 ( 2 ) and [Pd(L 3 )Cl 2 ]·(CH 3 COCH 3 ) 0.5 ( 3 ), which have been characterized by single-crystal X-ray diffraction, IR spectroscopy, and elemental and thermogravimetric analyses. The complexes 1 – 3 display discrete mononuclear structures. Non-linear optical properties of complexes 1 – 3 were investigated.
{"title":"Syntheses, characterization and properties of copper, silver and palladium complexes with oxazoline-containing ligands","authors":"Tao Hu, Wei Zhou, Hai-Wei Kuai, Hai-Ming Zhang","doi":"10.1515/znb-2023-0056","DOIUrl":"https://doi.org/10.1515/znb-2023-0056","url":null,"abstract":"Abstract The reactions of copper, silver and palladium salts with the homochiral ligands 3,3′-bis[( S , S )-4-isopropyl-2-oxazolyl]-4-chloro-2,2′-bipyridine (L 1 ), 3,3′-bis[( S , S )-4-benzyl-2-oxazolyl]-4-chloro-2,2′-bipyridine (L 2 ) and 2-[( S )-4-isopropyl-2-oxazolyl]quinoline (L 3 ) yield three new chiral complexes: [Cu(L 1 )Br 2 ] ( 1 ), [Ag(L 2 )(CH 3 CN)]·(BF 4 )·(CH 3 OH) 0.17 ·(H 2 O) 0.08 ( 2 ) and [Pd(L 3 )Cl 2 ]·(CH 3 COCH 3 ) 0.5 ( 3 ), which have been characterized by single-crystal X-ray diffraction, IR spectroscopy, and elemental and thermogravimetric analyses. The complexes 1 – 3 display discrete mononuclear structures. Non-linear optical properties of complexes 1 – 3 were investigated.","PeriodicalId":23831,"journal":{"name":"Zeitschrift für Naturforschung B","volume":"197 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135389106","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}
Abstract A new complex [RuCl2(dppf)(PN)] 1 (dppf = 1,1′-bis(diphenylphosphino) ferrocene; PN = (2-diphenylphosphino)benzenamine) has been synthesized and characterized. Its structure was determined by single-crystal X-ray diffraction. An efficient 1/Pd salt-cocatalyzed three-component oxidation/cyclization/Suzuki reaction for the synthesis of 2-pyridinyl-6-arylquinolines from 2-acetylpyridine, (2-amino-5-bromophenyl)methanol, and arylboronic acids has been developed.
{"title":"[RuCl2(dppf)(PN)]/Pd-cocatalyzed three-component synthesis of 2-pyridinyl-6-arylquinolines","authors":"Hao Wang, Pengtao Bai, Shuo Wen, Jingjing Wei, Heng Song, Chen Xu","doi":"10.1515/znb-2023-0018","DOIUrl":"https://doi.org/10.1515/znb-2023-0018","url":null,"abstract":"Abstract A new complex [RuCl2(dppf)(PN)] 1 (dppf = 1,1′-bis(diphenylphosphino) ferrocene; PN = (2-diphenylphosphino)benzenamine) has been synthesized and characterized. Its structure was determined by single-crystal X-ray diffraction. An efficient 1/Pd salt-cocatalyzed three-component oxidation/cyclization/Suzuki reaction for the synthesis of 2-pyridinyl-6-arylquinolines from 2-acetylpyridine, (2-amino-5-bromophenyl)methanol, and arylboronic acids has been developed.","PeriodicalId":23831,"journal":{"name":"Zeitschrift für Naturforschung B","volume":"60 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78256701","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}
Abstract The two compounds Fe2B3O7 (a = 663.61(4), c = 438.39(3) pm, space group: P 4 ‾ $overline{4}$ 21 m) and Mn4(B6O13(OH)) (a = 445.14(1), b = 683.56(2), c = 1330.34(3) pm, β = 90.42(1)°, space group: P21/c) were synthesized under high-pressure/high-temperature conditions of 9 GPa and 800 °C. Their crystal structures have been determined via single-crystal X-ray diffraction and the occurring side-phases have been identified. Fe2B3O7 crystallizes in the melilite structure type, whereas the novel structure of Mn4(B6O13(OH)) can be derived from the structures of the minerals melilite or johachidolite.
摘要在9 GPa和800 ℃的高压/高温条件下合成了两个化合物Fe2B3O7 (a = 663.61(4)， c = 438.39(3) pm，空间群:p4 $overline{4}$ 21 m)和Mn4(B6O13(OH)) (a = 445.14(1)， b = 683.56(2)， c = 1330.34(3) pm， β = 90.42(1)°，空间群:P21/c)。通过单晶x射线衍射测定了它们的晶体结构，并确定了发生的侧相。Fe2B3O7结晶为千英石结构型，而Mn4(B6O13(OH))的新结构可来源于矿物千英石或约千英石的结构。
{"title":"Comparative study of Fe2B3O7 and Mn4(B6O13(OH)): a new structure linking melilite and johachidolite","authors":"Leonard C. Pasqualini, H. Huppertz","doi":"10.1515/znb-2023-0047","DOIUrl":"https://doi.org/10.1515/znb-2023-0047","url":null,"abstract":"Abstract The two compounds Fe2B3O7 (a = 663.61(4), c = 438.39(3) pm, space group: P 4 ‾ $overline{4}$ 21 m) and Mn4(B6O13(OH)) (a = 445.14(1), b = 683.56(2), c = 1330.34(3) pm, β = 90.42(1)°, space group: P21/c) were synthesized under high-pressure/high-temperature conditions of 9 GPa and 800 °C. Their crystal structures have been determined via single-crystal X-ray diffraction and the occurring side-phases have been identified. Fe2B3O7 crystallizes in the melilite structure type, whereas the novel structure of Mn4(B6O13(OH)) can be derived from the structures of the minerals melilite or johachidolite.","PeriodicalId":23831,"journal":{"name":"Zeitschrift für Naturforschung B","volume":"30 6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87663890","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}
M. Reimann, Michael Johnscher, T. Block, Judith Bönnighausen, Rainer Pöttgen
Abstract Twenty five new ternary Laves phases RET4Mg and RET4Cd (RE = rare earth element; T = Co, Ni, Cu, Pt) have been synthesized from the elements using niobium or tantalum tubes as inert crucible materials. The lattice parameters have been derived from powder X-ray diffraction data. The structures of Ce1.41(1)Co4Mg0.59(1), Dy1.10(1)Co4Mg0.90(1), LaPt4Cd, Y1.10(1)Cu4Cd0.90(1), Ca0.93(1)Cd0.07(1)Pd2 and Eu0.87(2)Cd0.13(2)Pd2 were refined from single-crystal X-ray diffractometer data. Most phases show certain degrees of RE/Mg or RE/Cd disorder. The quenched phases are assigned to the MgCu2 structure, while the annealed ones adopt the MgCu4Sn type, a translationengleiche superstructure variant of the aristotype. The annealing time has a substantial influence on the degree of ordering and is expressed in the lattice parameters, i.e. larger ones for the disordered samples. The REPt4Cd (RE = La–Nd) samples have been characterized with respect to their magnetic properties. LaPt4Cd is a diamagnet, while CePt4Cd (2.23(1) µB), PrPt4Cd (3.40(1) µB) and NdPt4Cd (3.43(1) µB) are Curie–Weiss paramagnets. The cerium compound shows a slight moment reduction. NdPt4Cd is ordered ferromagnetically at TC = 4.4(1) K.
{"title":"Ternary Laves phases with the MgCu4Sn-type structure: RECo4Mg (RE = Gd, Dy–Tm, Lu), EuNi4Mg and RET4Cd (RE = Y, La–Nd, Sm, Gd–Dy; T = Cu, Pt)","authors":"M. Reimann, Michael Johnscher, T. Block, Judith Bönnighausen, Rainer Pöttgen","doi":"10.1515/znb-2023-0055","DOIUrl":"https://doi.org/10.1515/znb-2023-0055","url":null,"abstract":"Abstract Twenty five new ternary Laves phases RET4Mg and RET4Cd (RE = rare earth element; T = Co, Ni, Cu, Pt) have been synthesized from the elements using niobium or tantalum tubes as inert crucible materials. The lattice parameters have been derived from powder X-ray diffraction data. The structures of Ce1.41(1)Co4Mg0.59(1), Dy1.10(1)Co4Mg0.90(1), LaPt4Cd, Y1.10(1)Cu4Cd0.90(1), Ca0.93(1)Cd0.07(1)Pd2 and Eu0.87(2)Cd0.13(2)Pd2 were refined from single-crystal X-ray diffractometer data. Most phases show certain degrees of RE/Mg or RE/Cd disorder. The quenched phases are assigned to the MgCu2 structure, while the annealed ones adopt the MgCu4Sn type, a translationengleiche superstructure variant of the aristotype. The annealing time has a substantial influence on the degree of ordering and is expressed in the lattice parameters, i.e. larger ones for the disordered samples. The REPt4Cd (RE = La–Nd) samples have been characterized with respect to their magnetic properties. LaPt4Cd is a diamagnet, while CePt4Cd (2.23(1) µB), PrPt4Cd (3.40(1) µB) and NdPt4Cd (3.43(1) µB) are Curie–Weiss paramagnets. The cerium compound shows a slight moment reduction. NdPt4Cd is ordered ferromagnetically at TC = 4.4(1) K.","PeriodicalId":23831,"journal":{"name":"Zeitschrift für Naturforschung B","volume":"70 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77870082","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}
K. Burkmann, Bianca Störr, J. Seidel, K. Bohmhammel, F. Mertens
Abstract This article focuses on the synthesis of nickel borides in different molten-salt systems (eutectic NaCl/KCl and borax) at elevated temperatures. The differences in the thermodynamic stability of different nickel borides and the formation of NiB in an eutectic halite-sylvine mixture at T = 950 °C with different nickel-containing starting materials (NiO, Ni) has been elucidated. The results are compared to theoretical data calculated by the Calphad method. The results of the analysis shows that NiB2, if it exists, may only form a metastable phase.
{"title":"Synthesis of nickel borides in molten salts at elevated temperatures and thermodynamic characterization of the system Ni–B","authors":"K. Burkmann, Bianca Störr, J. Seidel, K. Bohmhammel, F. Mertens","doi":"10.1515/znb-2023-0002","DOIUrl":"https://doi.org/10.1515/znb-2023-0002","url":null,"abstract":"Abstract This article focuses on the synthesis of nickel borides in different molten-salt systems (eutectic NaCl/KCl and borax) at elevated temperatures. The differences in the thermodynamic stability of different nickel borides and the formation of NiB in an eutectic halite-sylvine mixture at T = 950 °C with different nickel-containing starting materials (NiO, Ni) has been elucidated. The results are compared to theoretical data calculated by the Calphad method. The results of the analysis shows that NiB2, if it exists, may only form a metastable phase.","PeriodicalId":23831,"journal":{"name":"Zeitschrift für Naturforschung B","volume":"106 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80727396","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}
Cuiling Deng, Yujia Zhu, Xuechun Zhang, Yani Tao, Xi Liu
Abstract A coordination polymer Cu(3-CP)3(NO3) (1) was synthesized from copper(II) sulfate and 3-cyanopyridine (3-CP) with in-situ reduction by hydroxylamine sulfate via the solvent evaporation method at room temperature, and structurally characterized by single-crystal X-ray diffraction and elemental analysis. Complex 1 exhibits a structure formed by cationic [Cu(3-CP)3] n n+ chains and NO3− anions with abundant supramolecular interactions. Solid-state photoluminescence experiments show that complex 1 exhibits a relatively strong blue-green emission, and its possible emission mechanism was investigated in detail based on theoretical calculations.
{"title":"A copper(I) coordination polymer with 3-cyanopyridine ligands","authors":"Cuiling Deng, Yujia Zhu, Xuechun Zhang, Yani Tao, Xi Liu","doi":"10.1515/znb-2023-0004","DOIUrl":"https://doi.org/10.1515/znb-2023-0004","url":null,"abstract":"Abstract A coordination polymer Cu(3-CP)3(NO3) (1) was synthesized from copper(II) sulfate and 3-cyanopyridine (3-CP) with in-situ reduction by hydroxylamine sulfate via the solvent evaporation method at room temperature, and structurally characterized by single-crystal X-ray diffraction and elemental analysis. Complex 1 exhibits a structure formed by cationic [Cu(3-CP)3] n n+ chains and NO3− anions with abundant supramolecular interactions. Solid-state photoluminescence experiments show that complex 1 exhibits a relatively strong blue-green emission, and its possible emission mechanism was investigated in detail based on theoretical calculations.","PeriodicalId":23831,"journal":{"name":"Zeitschrift für Naturforschung B","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85623204","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":"Modern Avenues in Metal-Nucleic Acid Chemistry. Jens Müller, Bernhard Lippert (Guest Editors), Astrid Sigel, Helmut Sigel, Eva Freisinger, Roland K. O. Sigel (Series Editors). Vol. 25 of Metal Ions in Life Sciences","authors":"H. Schmidbaur","doi":"10.1515/znb-2023-0042","DOIUrl":"https://doi.org/10.1515/znb-2023-0042","url":null,"abstract":"","PeriodicalId":23831,"journal":{"name":"Zeitschrift für Naturforschung B","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87855008","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}
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