Pub Date : 2017-05-01DOI: 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}
Pub Date : 2005-01-01DOI: 10.14279/DEPOSITONCE-7500
J. Pickardt, L. V. Chrzanowski, R. Steudel, Marina Borowski, Sebastian Beck
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.
diiodo-2晶体,2》-dipyridyldisulfide汞(二)[HgI 2 (C 5 H 4 N)负责2 S 2], dichloro-2, 2》-dipyridyldisulfide锌(II) [ZnCl 2 (C 5 H 4 N) 2 S 2], dibromo-2, 2”-dipyridyldisulfide镉(二)[CdBr 2 (C 5 H 4 N) 2 S 2], diiodo-2, 2》-dipyridyldisulfide镉(二)[CdI 2 (C 5 H 4 N) 2 S 2],和diaquo 2, 2’-dipyridyldisulfide镉(二)trifluoromethanesulfonate [Cd (H 2 O) 2 (C 5 H 4 N) 2 S 2] (CF 3 3) 2,由配体和相应的金属盐溶液蒸发得到，并测定了它们的x射线晶体结构。
{"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}
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.
{"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}
Pub Date : 2005-01-01DOI: 10.14279/depositonce-7501
H. Schumann, Klaudia Sühring
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.
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 (1 b) 5-Bromo-1, 2, 3, 4, 5-penta-p-tolyl-1, 3-cyclopentadiene (1 c) 5-Bromo-1, 2, 3, 4-tetraphenyl-5-p-bromophenyl-1, 3-cyclopentadiene (1 d)和5-Bromo - 1, 2, 3, 4-tetraphenyl-5-p-anisyl-l, 3-cyclopentadiene (1 e)和间二甲苯ironpentacarbonyl)反应生成相应的二茂铁2 a-2e。在净化过程中,与盐酸反应和溶剂间二甲苯观察收益率混合离子夹层复合物[(C 5 Ph值4 C 6 H 4我)铁(C 6 H 4我2)]+ Cl - (3), ((C 5 Ph值2 (C 6 H 4我)3)铁(C 6 H 4我2)]+ Cl - (3 b), [(C 5 (C 6 H 4我)5)铁(C 6 H 4我2)]+ Cl - (3 C), [(C 5 Ph值4 C 6 H 4 Br)铁(C 6 H 4我2)]+ Cl - (3 d)和((C 5 Ph值4 C 6 H 4渗出性中耳炎)铁(C 6 H 4我2)]+ Cl - (3 e),分别以及相应的环戊二烯1,2,3,4-四苯基-5-对苯基-1,3-环戊二烯(4a)， 1,4-二苯基-2,3,5-三对苯基-1,3-环戊二烯(4b)， 1,2,3,4,5 -五对苯基-1,3-环戊二烯(4c)， 1,2,3,4-四苯基-5-对溴苯基-1,3-环戊二烯(4d)和1,2,3,4-四苯基-5-对苯基-1,3-环戊二烯(4e)。这些化合物通过元素分析、红外、核磁共振和质谱进行了表征，在2c的情况下，通过13c - cpmas光谱和x射线粉末衍射进行了表征。
{"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}
Pub Date : 2005-01-01DOI: 10.14279/depositonce-7498
H. Schumann, Klaudia Sühring, Roman Weimann, Markus Hummert
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.
环戊二烯与5个等量的4-甲基苄基醇(1:5,6摩尔比)和钠反应生成五(4-甲基苄基)环戊-2,4-二烯(1)，经丁基锂处理后得到锂盐[(4- mec 6 H 4 CH 2) 5 C 5]Li(2)。2与FeCl 2和SnCl 2反应分别生成十(4-甲基苄基)二茂铁(3)和十(4-甲基苄基)二茂铁(4)。报道并讨论了新化合物的1h和13c NMR、IR和质谱，以及1的单晶x射线结构分析。
{"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}
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.
{"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}
Pub Date : 1996-01-01DOI: 10.14279/depositonce-7619
J. Pickardt, Britta Kühn
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.
通过Zn(S04)-7H20、KSCN和氰胍的水溶液蒸发得到|Zn(cnge)2(SCN)2]-2H20(1)晶体。用ZnBr-反应得到Zn(ege)Br2(2)晶体。和乙醇/水中的氰胍。这两个化合物都是单斜的，空间群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)°。在1中，每个Zn与两个氰胍分子结合，并通过N原子与两个NCS基团结合。分子间氢键形成沿“-”轴的链，这些链又通过氢键连接到两个水晶体分子上。在生成2的过程中，氰胍与乙醇反应生成1-乙氧基亚胺甲基胍。该配体与锌原子形成螯合环，锌原子与配体的两个亚氨基氮原子和两个溴原子呈四面体配位。
{"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}
{"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}
Pub Date : 1994-01-01DOI: 10.14279/DEPOSITONCE-7635
J. Pickardt, Gill-Taik Gong, S. Wischnack, Christina Steinkopff
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
{"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}
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