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Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences最新文献

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Fused thia-heterocycles via isothiocyanates. Part I. Facile synthesis of some new 1-benzothiopyran-4-one derivatives 通过异硫氰酸盐熔合硫杂环。第一部分:1-苯并噻唑吡喃-4- 1衍生物的简易合成
IF 0.8 4区 化学
Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences Pub Date : 2017-05-01 DOI: 10.15496/PUBLIKATION-20961
Lina M. Barhoumi, M. El-Abadelah, S. Sabri, W. Voelter
{"title":"Fused thia-heterocycles via isothiocyanates. Part I. Facile synthesis of some new 1-benzothiopyran-4-one derivatives","authors":"Lina M. Barhoumi, M. El-Abadelah, S. Sabri, W. Voelter","doi":"10.15496/PUBLIKATION-20961","DOIUrl":"https://doi.org/10.15496/PUBLIKATION-20961","url":null,"abstract":"","PeriodicalId":51215,"journal":{"name":"Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences","volume":"20 1","pages":"369-375"},"PeriodicalIF":0.8,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75045865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Metallkomplexe von 2,2’-Dipyridyldisulfid mit Quecksilber(II)-, Cadmium(II)- und Zink(II)-Halogeniden und mit Cadmium(II)- Trifluormethansulfonat turner含汞的22个氢化硫镉(II)，镉(II)和锌(II)镉和镉(II)诱导甲烷
IF 0.8 4区 化学
Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences Pub Date : 2005-01-01 DOI: 10.14279/DEPOSITONCE-7500
J. Pickardt, L. V. Chrzanowski, R. Steudel, Marina Borowski, Sebastian Beck
{"title":"Metallkomplexe von 2,2’-Dipyridyldisulfid mit Quecksilber(II)-, Cadmium(II)- und Zink(II)-Halogeniden und mit Cadmium(II)- Trifluormethansulfonat","authors":"J. Pickardt, L. V. Chrzanowski, R. Steudel, Marina Borowski, Sebastian Beck","doi":"10.14279/DEPOSITONCE-7500","DOIUrl":"https://doi.org/10.14279/DEPOSITONCE-7500","url":null,"abstract":"Crystals of diiodo-2,2'-dipyridyldisulfide mercury(II) [HgI 2 (C 5 H 4 N) 2 S 2 ], dichloro-2,2'-dipyridyldisulfide zinc(II) [ZnCl 2 (C 5 H 4 N) 2 S 2 ], dibromo-2,2'-dipyridyldisulfide cadmium(II) [CdBr 2 (C 5 H 4 N) 2 S 2 ], diiodo-2,2'-dipyridyldisulfide cadmium(II) [CdI 2 (C 5 H 4 N) 2 S 2 ], and diaquo 2,2'-dipyridyldisulfide cadmium(II) trifluoromethanesulfonate [Cd(H 2 O) 2 (C 5 H 4 N) 2 S 2 ](CF 3 SO 3 ) 2 , were obtained by evaporation of solutions of the ligand and the appropriate metal salts, and their X-ray crystal structures determined.","PeriodicalId":51215,"journal":{"name":"Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences","volume":"60 1","pages":"373-376"},"PeriodicalIF":0.8,"publicationDate":"2005-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66865038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Chemischer Transport fester Lösungen, 25 [1]. Untersuchungen zur Mischphasenbildung und zum chemischen Transport in den Systemen TiS 2/MoS 2, TiSe 2/MoSe 2, TaS 2/MoS 2 und TaSe 2/MoSe 2 化学运输固体固体，25[1]。s2 /莫斯2,TiSe 2/摩西2,ta 2/摩斯2和TaSe 2/摩西2
IF 0.8 4区 化学
Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences Pub Date : 2005-01-01 DOI: 10.15488/2385
U. Hotje, R. Wartchow, M. Binnewies
{"title":"Chemischer Transport fester Lösungen, 25 [1]. Untersuchungen zur Mischphasenbildung und zum chemischen Transport in den Systemen TiS 2/MoS 2, TiSe 2/MoSe 2, TaS 2/MoS 2 und TaSe 2/MoSe 2","authors":"U. Hotje, R. Wartchow, M. Binnewies","doi":"10.15488/2385","DOIUrl":"https://doi.org/10.15488/2385","url":null,"abstract":"In the systems TiS 2 /NbS 2 , TiSe 2 /NbSe 2 , NbS 2 /TaS 2 und NbSe 2 /TaSe 2 complete miscibility in the solid state has been observed by powder X-ray investigations. Mixed crystals as well as the binary compounds can be prepared by chemical vapour transport reactions using iodine as transport agent in the temperature gradient 1000 → 900 °C. The gaseous species TiI 3 (g), TiI 4 (g), NbI 4 (g) and TaI 4 (g) are responsible for the transport effect.","PeriodicalId":51215,"journal":{"name":"Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences","volume":"74 1","pages":"1235-1240"},"PeriodicalIF":0.8,"publicationDate":"2005-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67149166","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Di-, Hexa- und Deca-substituierte Decaphenylferrocene 二、胡莱和迪卡替换了狄卡茂茂
IF 0.8 4区 化学
Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences Pub Date : 2005-01-01 DOI: 10.14279/depositonce-7501
H. Schumann, Klaudia Sühring
{"title":"Di-, Hexa- und Deca-substituierte Decaphenylferrocene","authors":"H. Schumann, Klaudia Sühring","doi":"10.14279/depositonce-7501","DOIUrl":"https://doi.org/10.14279/depositonce-7501","url":null,"abstract":"5-Bromo-1,2,3,4-tetraphenyl-5-p-tolyl-1,3-cyclopentadiene (la), 5-Bromo-1,4-di-phenyl-2,3,5-tri-p-tolyl-1,3-cyclopentadiene (1b), 5-Bromo-1,2,3,4,5-penta-p-tolyl-1,3-cyclopentadiene (1c), 5-Bromo-1,2,3,4-tetraphenyl-5-p-bromophenyl-1,3-cyclopentadiene (1d), and 5-Bromo- 1,2,3,4-tetraphenyl-5-p-anisyl-l,3-cyclopentadiene (1e) react with ironpentacarbonyl in m-xylene to yield the corresponding ferrocenes 2a-2e. In the course of the purification procedure, reactions with HCl and the solvent m-xylene are observed which yield the mixed ionic sandwich complexes [(C 5 Ph 4 C 6 H 4 Me)Fe(C 6 H 4 Me 2 )] + Cl - (3a), [(C 5 Ph 2 (C 6 H 4 Me) 3 )Fe(C 6 H 4 Me 2 )] + Cl - (3b), [(C 5 (C 6 H 4 Me) 5 )Fe(C 6 H 4 Me 2 )] + Cl - (3c), [(C 5 Ph 4 C 6 H 4 Br)Fe(C 6 H 4 Me 2 )] + Cl - (3d), and [(C 5 Ph 4 C 6 H 4 OMe)Fe(C 6 H 4 Me 2 )] + Cl - (3e), respectively, along with the corresponding cyclopentadienes 1,2,3,4-tetraphenyl-5-p-tolyl-1,3-cyclopentadiene (4a), 1,4-diphenyl-2,3,5-tri-p-tolyl-1,3-cyclopentadiene (4b), l,2,3,4,5-penta-p-tolyl-1,3-cyclopentadiene (4c), 1,2,3,4-tetraphenyl-5-p-bromphenyl-l,3-cyclopentadiene (4d), and 1,2,3,4-tetraphenyl-5-p-anisyl-1,3-cyclopentadiene (4e). The compounds have been characterized by elemental analysis, IR, NMR, and mass spectra, and, in the case of 2c, by 1 3 C-CPMAS spectroscopy and X-ray powder diffractometry.","PeriodicalId":51215,"journal":{"name":"Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences","volume":"60 1","pages":"383-388"},"PeriodicalIF":0.8,"publicationDate":"2005-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66865070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Deca(4-methylbenzyl)ferrocen und -stannocen 二
IF 0.8 4区 化学
Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences Pub Date : 2005-01-01 DOI: 10.14279/depositonce-7498
H. Schumann, Klaudia Sühring, Roman Weimann, Markus Hummert
{"title":"Deca(4-methylbenzyl)ferrocen und -stannocen","authors":"H. Schumann, Klaudia Sühring, Roman Weimann, Markus Hummert","doi":"10.14279/depositonce-7498","DOIUrl":"https://doi.org/10.14279/depositonce-7498","url":null,"abstract":"Cyclopentadiene reacts with five equivalents of 4-methylbenzylalcohol (1:5,6 mole ratio) and sodium yielding penta(4-methylbenzyl)cyclopenta-2,4-diene (1), which upon treatment with butyl lithium affords the lithium salt [(4-MeC 6 H 4 CH 2 ) 5 C 5 ]Li (2). The reactions of 2 with FeCl 2 and SnCl 2 result in the formation of deca(4-methylbenzyl)ferrocene (3) and deca(4-methylbenzyl)stannocene (4), respectively. The 1 H and 1 3 C NMR, IR and mass spectra of the new compounds as well as the single crystal X-ray structure analysis of 1 are reported and discussed.","PeriodicalId":51215,"journal":{"name":"Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences","volume":"60 1","pages":"527-532"},"PeriodicalIF":0.8,"publicationDate":"2005-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66864918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
New Dinuclear Mn(II) Phenanthroline Adipato Complex: Synthesis and Structural and Thermal Characterization of Mn2(phen)2(H2O)2(C6H8O4)2 新型双核Mn(II)邻菲罗啉己帕托配合物:Mn2(phen)2(H2O)2(C6H8O4)2的合成及结构和热表征
IF 0.8 4区 化学
Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences Pub Date : 2003-01-01 DOI: 10.1515/znb-2003-0404
Yueqing Zheng, M. Zheng
{"title":"New Dinuclear Mn(II) Phenanthroline Adipato Complex: Synthesis and Structural and Thermal Characterization of Mn2(phen)2(H2O)2(C6H8O4)2","authors":"Yueqing Zheng, M. Zheng","doi":"10.1515/znb-2003-0404","DOIUrl":"https://doi.org/10.1515/znb-2003-0404","url":null,"abstract":"Reaction of freshly precipitated Mn(OH)2−2x(CO3)x · yH2O, adipic acid and phenanthroline in CH3OH/H2O afforded a new dinuclear Mn(II) complex, Mn2(phen)2(H2O)2(C6H8O4)2 1, aside the known [Mn(phen)2(H2O)(C6H8O4)]·7H2O 2. Single crystal X-ray analyses showed that complex 1 consists of the centrosymmetric dinuclear molecules resulting from two [Mn(phen)(H2O)]2+ moities bridged by two twisted tridentate adipato ligands. The Mn atoms are each in severely distorted octahedral geometry defined by two N atoms of one phen ligand, three carboxyl O atoms of two adipato ligands and one H2O molecule with d(Mn-N) = 2.246 and 2.296 Å and d(Mn-O) = 2.066 - 2.339 Å . The complex molecules are assembled via π-π stacking interactions into 2D layers, which are held together by both strong O-H ··· O and weak C- H ··· O hydrogen bonds. The thermal behavior of 1 and 2 upon heating in argon stream is discussed.","PeriodicalId":51215,"journal":{"name":"Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences","volume":"58 1","pages":"266 - 270"},"PeriodicalIF":0.8,"publicationDate":"2003-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1515/znb-2003-0404","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66888551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Metallkomplexe mit Guanidinderivaten als Liganden: Kristallstrukturen von [Zn(cnge)2(SCN)2] · 2H2O und Zn(eoge)Br2 (enge = Cyanoguanidin; eoge = 1-Ethoxyiminomethylguanidin) Metallkomplexe由Guanidinderivaten Liganden: Kristallstrukturen [Zn (cnge) 2 (SCN)]·2H2O和Zn (eoge) Br2 (= Cyanoguanidin密切;加里基= 1
IF 0.8 4区 化学
Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences Pub Date : 1996-01-01 DOI: 10.14279/depositonce-7619
J. Pickardt, Britta Kühn
{"title":"Metallkomplexe mit Guanidinderivaten als Liganden: Kristallstrukturen von [Zn(cnge)2(SCN)2] · 2H2O und Zn(eoge)Br2 (enge = Cyanoguanidin; eoge = 1-Ethoxyiminomethylguanidin)","authors":"J. Pickardt, Britta Kühn","doi":"10.14279/depositonce-7619","DOIUrl":"https://doi.org/10.14279/depositonce-7619","url":null,"abstract":"Crystals of |Zn(cnge)2(SCN)2]-2H20 (1) were obtained by evaporation of an aqueous solution of Z n(S04)-7H20 , KSCN, and cyanoguanidine. Crystals of Zn(eoge)Br2 (2) were obtained by reaction of ZnBr-. and cyanoguanidine in ethanol/water. Both compounds are monoclinic, space group C2/c, 1: Z = 4, a = 1919.6(7), b = 467.3(2), c = 1838.5(6) pm, ß = 112.99(3)°, 2: Z = 8, a = 1799.5(6), b = 878.7(2), c = 1367.2(5) pm, ß = 101.52(3)°. In 1 each Zn is bonded to two cyanoguanidine molecules and via the N atoms to two NCS groups. Intermolecular hydrogen bonds lead to chains along the «-axis, and these chains are again connected via hydrogen bonds to the two crystal water molecules. In the course of the formation of 2, the cyanoguanidine reacted with the ethanol to form 1-ethoxyiminomethylguanidine. This ligand forms chelate rings with the Zn atoms, which are tetrahedrally coordinated by the two imino N atoms of the ligand and by two bromine atoms.","PeriodicalId":51215,"journal":{"name":"Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences","volume":"51 1","pages":"1469-1472"},"PeriodicalIF":0.8,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66864648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Kristallstrukturen der „supramolekularen“ 1,4-Diazabicyclo[2.2.2]octan- Quecksilber(II)-Komplexe [Hg(dabco)I2] und [Hg(dabco)(SCN)2] 《亚原子分子结构》6.4亚原子汞(II)合成物(Hg)和[Hg(SCN)2
IF 0.8 4区 化学
Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences Pub Date : 1995-01-01 DOI: 10.14279/DEPOSITONCE-7629
J. Pickardt, Jing Shen, Gill-Taik Gong
{"title":"Kristallstrukturen der „supramolekularen“ 1,4-Diazabicyclo[2.2.2]octan- Quecksilber(II)-Komplexe [Hg(dabco)I2] und [Hg(dabco)(SCN)2]","authors":"J. Pickardt, Jing Shen, Gill-Taik Gong","doi":"10.14279/DEPOSITONCE-7629","DOIUrl":"https://doi.org/10.14279/DEPOSITONCE-7629","url":null,"abstract":"","PeriodicalId":51215,"journal":{"name":"Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences","volume":"50 1","pages":"833-836"},"PeriodicalIF":0.8,"publicationDate":"1995-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66864681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Die Synthese und Struktur von Clusteraziden: A4[Nb6Cl12(N3)6](H2O)2 mit A = Rb, Cs 集群结构:A4 (Nb6Cl12(N3)6 (H2O)2 (A = Rb, c)
IF 0.8 4区 化学
Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences Pub Date : 1995-01-01 DOI: 10.15488/2409
O. Reckeweg, H. Meyer
{"title":"Die Synthese und Struktur von Clusteraziden: A4[Nb6Cl12(N3)6](H2O)2 mit A = Rb, Cs","authors":"O. Reckeweg, H. Meyer","doi":"10.15488/2409","DOIUrl":"https://doi.org/10.15488/2409","url":null,"abstract":"","PeriodicalId":51215,"journal":{"name":"Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences","volume":"10 20 1","pages":"1377-1381"},"PeriodicalIF":0.8,"publicationDate":"1995-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67149756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Kristallstruktur zweier Zinkthiocyanat-Hexamethylentetramin-Addukte, Zn(SCN)2 · (C6H12N4)2 und {Zn(SCN)2 · C6H12N4 · 2H2O}n, mit unterschiedlich koordinierten Zinkionen Kristallstruktur两Zinkthiocyanat-Hexamethylentetramin-Addukte Zn (SCN) 2·(C6H12N4) 2——Zn (SCN) 2·C6H12N4·2H2O n、和协调Zinkionen不同……
IF 0.8 4区 化学
Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences Pub Date : 1994-01-01 DOI: 10.14279/DEPOSITONCE-7635
J. Pickardt, Gill-Taik Gong, S. Wischnack, Christina Steinkopff
{"title":"Kristallstruktur zweier Zinkthiocyanat-Hexamethylentetramin-Addukte, Zn(SCN)2 · (C6H12N4)2 und {Zn(SCN)2 · C6H12N4 · 2H2O}n, mit unterschiedlich koordinierten Zinkionen","authors":"J. Pickardt, Gill-Taik Gong, S. Wischnack, Christina Steinkopff","doi":"10.14279/DEPOSITONCE-7635","DOIUrl":"https://doi.org/10.14279/DEPOSITONCE-7635","url":null,"abstract":"Crystals of the adducts Zn(SCN) 2 -(C 6 H 12 N 4 ) 2 (1), and {Zn(SCN) 2 -C 6 H 12 N 4 -2 H 2 O} n (2) were obtained by crystallization from aqueous solutions containing hexamethylenetetramine, potassium thiocyanate and zinc nitrate or zinc sulfate, resp., under identical conditions, as two totally different products. I crystallizes orthorhombically, space group P nmm, Z=2, a=622.4(5), b=1152.3(7), c=1394.0(9) pm; 2 is monoclinic, space group C 2/c, a=984.4(3), b=1217.0(5), c=1257.4(6) pm, and β=111.69(5) o","PeriodicalId":51215,"journal":{"name":"Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences","volume":"111 1","pages":"325-329"},"PeriodicalIF":0.8,"publicationDate":"1994-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66864883","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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