GLORIA

GEOMAR Library Ocean Research Information Access

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Macroring-neutral molecule complexation. Synthesis of biconcave pyridino hosts, complex formation, and x-ray crystal structures of two inclusion compounds (1991)
    s.l. : American Chemical Society
    The @journal of organic chemistry 56 (1991), S. 1236-1242 
    Details
    ISSN: 1520-6904
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jo00003a055
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    PLATELET METABOLISM WITH SPECIAL REFERENCE TO COMPARTMENTS AND MEMBRANES (1972)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 201 (1972), S. 0 
    Details
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1749-6632.1972.tb16289.x
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    The high-anti conformation of 8-aza-1,3-dideaza-2′-deoxyadenosine (2001)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 57 (2001), S. 660-662 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: In the title compound, 4-amino-1-(2-deoxy-β-D-erythro-pentofuranosyl)-1H-benzotriazole, C11H14N4O3, the conformation of the N-glycosidic bond is in the high-anti range [χ = −77.1 (4)°] and the 2′-deoxyribofuranose moiety adopts a 2′-endo (2E) sugar puckering. The 5′-hydroxyl group is disordered and has conformations ap with γ = 171.1 (3)° [occupation of 61.4 (3)%] and +sc with γ = 52.4 (6)° [occupation of 38.6 (3)%]. The nucleobases are stacked in the crystal state.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108270101004152
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    2′-Deoxy-5-methylisocytidine (2000)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 56 (2000), S. 989-991 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: In the title compound, 2-amino-1-(2-deoxy-β-D-erythro-pentofuranosyl)-5-methylpyrimidin-4(1H)-one, C10H15N3O4, the conformation of the N-glycosidic bond is syn and the 2-deoxyribofuranose moiety adopts an unusual OT1 sugar pucker. The orientation of the exocyclic C4′—C5′ bond is +sc (+gauche).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108270100006247
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    7-Iodo-8-aza-7-deaza-2′-deoxyadenosine and 7-bromo-8-aza-7-deaza-2′-deoxyadenosine (2000)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 56 (2000), S. 489-491 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: The isomorphous structures of the title molecules, 4-amino-1-(2-deoxy-β-D-erythro-pentofuranosyl)-3-iodo-1H-pyrazolo-[3,4-d]pyrimidine, (I), C10H12IN5O3, and 4-amino-3-bromo-1-(2-deoxy-β-D-erythro-pentofuranosyl)-1H-pyrazolo[3,4-d]pyrimidine, (II), C10H12BrN5O3, have been determined. The sugar puckering of both compounds is C1′-endo (1′E). The N-glycosidic bond torsion angle χ1 is in the high-anti range [−73.2 (4)° for (I) and −74.1 (4)° for (II)] and the crystal structure is stabilized by hydrogen bonds.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108270100000780
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Hydrolysis products of diorganotin dihalides. I. Bis[1,3-dihydroxo-1,1,3,3-tetrakis(2-methyl-2-phenylpropyl)distannoxane] (2000)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 56 (2000), S. 804-805 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: In the solid state, the title compound, di-μ-hydroxo-1:2κ2O;-3:4κ2O-dihydroxo-1κO,4κO-octakis(2-methyl-2-phenylpropyl)-1κ2C,2κ2C,3κ2C,4κ2C-di-μ3-oxo-1:2:3κ3O;2:3:4κ3O-tetratin(IV), [Sn4O2(OH)4(C10H13)8], forms centrosymmetric dimeric [(Neophyl2SnOH)(Neophyl2SnOH)O]2 molecules (Neophyl = 2-methyl-2-phenylpropyl), with an almost planar Sn–O framework that adopts a ladder-type structure consisting of three four-membered rings. The hydroxyl groups are shielded by the organic groups, which prevent them from further condensation and from the formation of hydrogen bonds.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108270100006016
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    The development of urological endoscopy in America (1999)
    Springer
    World journal of urology 17 (1999), S. 176-183 
    Details
    ISSN: 1433-8726
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract This article deals with the history of medicine in American urology, where endoscopy is a very important subject. The development of endoscopy in America unrolled in three phases: the acquisition of European techniques and instruments, realization of the ideas of American researchers, and original creations that forwarded endoscopy considerably. European instruments were acquired in the nineteenth century, culminating in the instruments developed by Max Nitze. When Wappler started the production of endoscopes in 1905, they were the basis for the development of numerous modifications and innovations such as electrosurgery, developed by Beer in 1910, with the Resonator created by Wappler; the resectoscope, invented by Stern and McCarthy in 1931; “cold light” using glass fibers for illumination, described by ACMI in 1960; the flexible fiber ureterorenoscope, described by Marshall in 1960; and fluorescence cystoscopy, introduced by I. M. Bush and W. F. Whitmore in 1964.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003450050128
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    The utilization of a new strength citrate anticoagulant during centrifugal plateletpheresis II. Assessment of in vitro platelet function (1977)
    Springer
    Annals of hematology 34 (1977), S. 237-241 
    Details
    ISSN: 1432-0584
    Keywords: Platelet adhesion ; spreading ; aggregation ; new citrate formulation ; IFC
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Thrombozyten, die durch intermittierende Zentrifugation im extrakorporalen Kreislauf unter Verwendung von 5.0 g total ionisierten Zitrates (TIC) gewonnen wurden, zeigen normale Adhäsion, Ausbreitung und ADP- und Kollagen-induzierte Aggregation. Sofort nach der Beendigung der Gewinnung weisen die Thrombozyten des Spenders eine signifikante Erniedrigung der Adhäsions- und Aggregationsfähigkeit nach ADP-Inkubation auf. Die Gesamtzahl der gewonnenen Thrombozyten und der Wirkungsgrad der Methode bleiben durch die Verwendung von 5.0 g TIC unbeeinflußt.
    Notes: Summary Platelets contained in concentrates prepared by intermittent flow centrifugation utilizing 5.0 g total ionized citrate, function normally as assessed by tests for adhesion, spreading, and ADP and collagen-induced aggregation. The ability of platelets to adhere and to aggregate following incubation with ADP is significantly reduced, in samples taken immediately after the collection procedure. Total platelet collection and platelet collection efficiency, is not compromised by use of the above citrate concentration.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00996174
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    N-Tosylaza[2.2]metacyclophan  -  Darstellung, Struktur, Helicität, Chiroptik, Racemisierung (1988)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 121 (1988), S. 823-828 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: NTosylaza[2.2]metacyclophane.  -  Preparation, Structure, helicity, Chiroptical Properties, and RacemizationSynthesis, structure, helicity, and chiroptical properties of the ten-membered helical N-tosylaza[2.2]metacyclophane 7a are described for the first time. 7a exist in a strained anti conformation, the inner (Hi-) protons of which absorb at high field (4.13, 4.34 ppm). The enantiomers of 7a were enriched by low-pressure chromatography on triacetylcellulose (TAC). Specific rotations, barrier of racemization, and circular dichrograms are discussed with respect to comparison compounds.
    Notes: Synthese, Röntgen-Kristallstrukturanalyse und Eigenschaften des zehngliedrigen N-Tosylaza[2.2]metacyclophans 7a werden erstmals beschrieben. 7a liegt in einer gespannten anti-Konformation vor, deren innere (Hi-)Protonen bei hohem Feld (4.13, 4.34 ppm) absorbieren. Die Enantiomere von 7a wurden an Triacetylcellulose (TAC) niederdruck-chromatographisch angereichert. Spezifische Drehungen, Racemisierungsbarriere und Circulardichroismus werden anhand von Vergleichsverbindungen erörtert.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19881210503
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    Synthese, Röntgenstruktur, Basizität und dynamische Stereochemie eines Donor-substituierten [2.2](2,6)Pyridinophans (1989)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 122 (1989), S. 343-346 
    Details
    ISSN: 0009-2940
    Keywords: Pyridinophanes ; Pyridines, basicity of ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis, X-ray Structure, Basicity, and Dynamic Stereo-chemistry of a Donor-Substituted [2.2] (2,6)PyridinophaneTreatment of 4b with pheyllithium afforded the donor-substituted 7,15-dimethoxy[2.2](2,6)pyridonophane (2) by intermolecular cyclization. 2 is compared with the unsubstituted compound 1 by X-ray crystallography, determination of basicity, and 1H-NMR studies. The results indicate an attractive interaction between the pyridine nitrogen of 2 and a H atom of a second molecule of 2.
    Notes: Das durch Methoxygruppen Donor-verstärkte 7,15-Dimethoxy-[2.2](2,6)pyridinophan (2) wurde durch intermolekulare Cyclisierung von 4b mit Phenyllithium erhalten. Ein Vergleich mit dem unsubstituierten Grundgerüst 1 wird über die Röntgenkristallstrukturanalyse, Basizitätsmessungen sowie 1H-NMR-Studien vorgenommen. Die Ergebnisse deuten auf eine anziehende Wechselwirkung zwischen dem Pyridin-Stickstoff von 2 und einem H-Atom der Methoxygruppe eines zweiten Moleküls 2 hin.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19891220223
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...