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Synthese und Eigenschaften von Trimethylstannylmethyl-Indium(III)-Verbindungen 甲胺胺素合成与属性(三)的合成
IF 0.8 4区 化学
Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences Pub Date : 1984-01-01 DOI: 10.14279/DEPOSITONCE-7905
H. Schumann, Reza Mohtachemi
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引用次数: 0
Cyclische Diazastannylene. - XVIII : Zur Frage der Bindungsbeschreibung in Polyedern des Typs Sn4X3Y : die Kristall- und Molekülstrukturen von Sn4(NtBu)4 und Sn4(NtBu)3O Cyclische Diazastannylene .在试图比较s4x3y对象的结合描述时，s4x3y是s4和s4的晶体和分子结构
IF 0.8 4区 化学
Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences Pub Date : 1983-01-01 DOI: 10.22028/D291-24001
M. Veith, O. Recktenwald
{"title":"Cyclische Diazastannylene. - XVIII : Zur Frage der Bindungsbeschreibung in Polyedern des Typs Sn4X3Y : die Kristall- und Molekülstrukturen von Sn4(NtBu)4 und Sn4(NtBu)3O","authors":"M. Veith, O. Recktenwald","doi":"10.22028/D291-24001","DOIUrl":"https://doi.org/10.22028/D291-24001","url":null,"abstract":"Crystals of Sn4(NtBu)4 (1) are monoclinic, space group P2(1/c), with cell constants a=1038.9(4), b=1468.3(5), c=1698.8(5) pm, beta=91.6(1)° and Z=4, while those of Sn4(NtBu)3O (2) are triclinic, space group P(-)1, with dimensions a=1293.0(5), b=1027.1(5), c=1716.7(9) pm, alpha=90.9(1), beta=102.5(1), gamma=107.0(1)° and Z=4. The molecules 1 are held together by von-der-Waals forces, whereas two molecules 2 interact in the crystal by weak O --> Sn donor bonds (290-332 pm) forming dimers. The outstanding structural elements of 1 and 2 are the Sn4N4 and Sn4N3O polyhedra, which can be described by two interpenetrating tetrahedra of tin atoms and of nitrogen or nitrogen and oxygen atoms forming a distorted cube, which approaches (-)43m symmetry in the case of 1 and 3m for 2. Characteristic distances are in 1: Sn-N 220.2 pm, in 2: Sn-N 221.3 pm and Sn-O 213.2 pm. An almost ionic bonding model and two covalent models are discussed on the basis of the structural data including Sn4(NtBu)3OAlMe3.","PeriodicalId":51215,"journal":{"name":"Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences","volume":"38 1","pages":"1054-1061"},"PeriodicalIF":0.8,"publicationDate":"1983-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67973756","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
Darstellung und Reaktivität der Cyclopentadienyl-dicarbonyl-methyl-mangan-Komplexe [C5H5Mn(CO)2(CH3)]− und [C5H5Mn(CO)2(CH3)2] 描述和Cyclopentadienyl-dicarbonyl-methyl-mangan-Komplexe [C5H5Mn Reaktivität (CO) 2 (CH3)]−和C5H5Mn (CO) 2 (CH3) 2]
IF 0.8 4区 化学
Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences Pub Date : 1983-01-01 DOI: 10.1515/znb-1983-1129
D. Sellmann, P. Klostermann
{"title":"Darstellung und Reaktivität der Cyclopentadienyl-dicarbonyl-methyl-mangan-Komplexe [C5H5Mn(CO)2(CH3)]− und [C5H5Mn(CO)2(CH3)2]","authors":"D. Sellmann, P. Klostermann","doi":"10.1515/znb-1983-1129","DOIUrl":"https://doi.org/10.1515/znb-1983-1129","url":null,"abstract":"Preparation du compose monomethyl par reaction entre −20 et +10°C de CpMn(CO) 2 N 2 avec LiCH 3 dans THF. L'alkylation par [(CH 3 ) 3 O]BF 4 donne le compose dimethyl","PeriodicalId":51215,"journal":{"name":"Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences","volume":"38 1","pages":"1497-1500"},"PeriodicalIF":0.8,"publicationDate":"1983-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1515/znb-1983-1129","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66888911","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
Total synthesis of somatostatin .1. 生长抑素的总合成
IF 0.8 4区 化学
Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences Pub Date : 1976-01-01 DOI: 10.1515/9783111415086-031
H. Kalbacher, C. Burvenich, S. Fuchs, H. Horn, W. Klingler, Emanuel Pietrzik, K. Zech, W. Voelter
{"title":"Total synthesis of somatostatin .1.","authors":"H. Kalbacher, C. Burvenich, S. Fuchs, H. Horn, W. Klingler, Emanuel Pietrzik, K. Zech, W. Voelter","doi":"10.1515/9783111415086-031","DOIUrl":"https://doi.org/10.1515/9783111415086-031","url":null,"abstract":"","PeriodicalId":51215,"journal":{"name":"Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences","volume":"54 1","pages":"1702-1707"},"PeriodicalIF":0.8,"publicationDate":"1976-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83200929","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
Thermodynamic and physical behaviour of binary mixtures involving sulfolane. Viscosity, dielectric constant, solid-liquid diagram of mixtures of dioxane-sulfolane 含环己烷二元混合物的热力学和物理行为。粘度，介电常数，二氧六烷-环己烷混合物的固液图
IF 0.8 4区 化学
Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences Pub Date : 1975-04-15 DOI: 10.1002/chin.197515096
L. Jannelli, A. Inglese, A. Sacco, Pietro Ciani
{"title":"Thermodynamic and physical behaviour of binary mixtures involving sulfolane. Viscosity, dielectric constant, solid-liquid diagram of mixtures of dioxane-sulfolane","authors":"L. Jannelli, A. Inglese, A. Sacco, Pietro Ciani","doi":"10.1002/chin.197515096","DOIUrl":"https://doi.org/10.1002/chin.197515096","url":null,"abstract":"","PeriodicalId":51215,"journal":{"name":"Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences","volume":"73 5-6","pages":"87-91"},"PeriodicalIF":0.8,"publicationDate":"1975-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/chin.197515096","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50762974","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
Alkali-Phosphorverbindungen und ihr reaktives Verhalten. LII. 建立了一种碱性磷化合物和磷的反应.等…
IF 0.8 4区 化学
Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences Pub Date : 1967-01-01 DOI: 10.1515/znb-1967-1202
K. Ǐssleib, F. Ungváry
{"title":"Alkali-Phosphorverbindungen und ihr reaktives Verhalten. LII.","authors":"K. Ǐssleib, F. Ungváry","doi":"10.1515/znb-1967-1202","DOIUrl":"https://doi.org/10.1515/znb-1967-1202","url":null,"abstract":"β-Merkapto-äthyl- und -isopropyl-phenylphosphin - hergestellt aus NaP (H) C6H5 und Äthylen- bzw. 1.2-Propylensulfid in flüssigem NH3 nach Aufarbeitung mit HCl - reagieren mit Äthylbromid zu Thioäthern C6H5P(H)-CH2·CHR-S-C2H5 und mit Benzaldehyd zu Merkaktalen C6H5CH-[S-CHR·CH2-P(H)C6H5]2, die sich mit Lithiumorganylen zu den entsprechenden Lithiumphosphiden metallieren lassen. Das Komplexverhalten von C6H5P(H)-CH2·CH2-SH- gleiches trifft für C6H5P(H)-CH2·CHCH3-SH zu - gegenüber CoBr2 oder NiBr2 in Methanol bzw. in Methanol/Ammoniak, ist generell durch HBr-Abspaltung und Bildung von Merkapto-chelatphosphin-Komplexen [C6H5P(H)-CH2·CH2-S] 3Co·CoBr oder C6H5P (H)-CH2·CH2-S-NiBr bzw. [C6H5P(H)-CH2·CH2-S]3Co und [C6H5P(H)-CH2·CH2-S]2Ni gekennzeichnet. Die dargestellten P-Derivate bzw. Komplexe werden IR-, UV- und HNMR-spektroskopisch sowie durch magnetische Messungen charakterisiert.","PeriodicalId":51215,"journal":{"name":"Zeitschrift Fur Naturforschung Section B-A Journal of Chemical Sciences","volume":"22 1","pages":"1238 - 1242"},"PeriodicalIF":0.8,"publicationDate":"1967-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66888851","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
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